(LS, Snag Corse ice es GRR Ge ues TECHNICAL REPORT CERC-87-9 US Army Corps BEACH AND NEARSHORE an eamee SURVEY DATA: 1981-1984 CERC FIELD RESEARCH FACILITY by Peter A. Howd, William A. Birkemeier Coastal Engineering Research Center DEPARTMENT OF THE ARMY Waterways Experiment Station, Corps of Engineers PO Box 631, Vicksburg, Mississippi 39180-0631 DOCUMENT LIBRARY © Woods Hole Oceanographic ‘ Institution July 1987 Final Report Approved For Public Release, Distribution Unlimited Prepared for DEPARTMENT OF THE ARMY US Army Corps of Engineers Washington, DC 20314-1000 Destroy this report when no longer needed. Do not return it to the originator. The findings in this report are not to be construed as an official Department of the Army position unless so designated by other authorized documents. The contents of this report are not to be used for advertising, publication, or promotional purposes. Citation of trade names does not constitute an official endorsement or approval of the use of such commercial products. Unclassified SECURITY CLASSIFICATION OF THIS PAGE REPORT DOCUMENTATION PAGE Ja. REPORT SECURITY CLASSIFICATION Unclassified 2a. SECURITY CLASSIFICATION AUTHORITY 2b. DECLASSIFICATION / DOWNGRADING SCHEDULE 4. PERFORMING ORGANIZATION REPORT NUMBER(S) Technical Report CERC-87-9 . NAME OF PERFORMING ORGANIZATION USAEWES, Coastal Engineering Research Center . ADDRESS (City, State, and ZIP Code) PO Box 631 Vicksburg, MS 39180-0631 6b. OFFICE SYMBOL (If applicable) - NAME OF FUNDING/ SPONSORING ORGANIZATION 8b. OFFICE SYMBOL (If applicable) US Army Corps of Engineers . ADDRESS (City, State, and ZIP Code) Washington, DC 20314-1000 _ TITLE (Include Security Classification) Beach and Nearshore Survey Data: Form Approved OMB No. 0704-0188 Exp. Date Jun 30, 1986 1b. RESTRICTIVE MARKINGS 3. DISTRIBUTION / AVAILABILITY OF REPORT Approved for public release; distribution unlimited 5. MONITORING ORGANIZATION REPORT NUMBER(S) 7a. NAME OF MONITORING ORGANIZATION 7b. ADDRESS (City, State, and ZIP Code) 9. PROCUREMENT INSTRUMENT IDENTIFICATION NUMBER 10. SOURCE OF FUNDING NUMBERS PROGRAM PROJECT ELEMENT NO NO WORK UNIT ACCESSION NO 1981-1984, CERC Field Research Facility 12. PERSONAL AUTHOR(S) Howd, Peter A., Birkemeier, William A. 13a. TYPE OF REPORT 13b. TIME COVERED Final report FROM TO 16. SUPPLEMENTARY NOTATION 14. DATE OF REPORT (Year, Month, Day) 415. PAGE COUNT July 1987 143 Available from National Technical Information Service, 5285 Port Royal Road, Springfield, VA 22161. 17 COSATI CODES FIELD GROUP SUB-GROUP Beaches CRAB Duck. NC 18. SUBJECT TERMS (Continue on reverse if necessary and identify by block number) Field Research Facility Profile changes Profile data 19. ABSTRACT (Continue on reverse if necessary and identify by block number) This report presents 4 years of highly accurate, approximately biweekly surveys of four selected beach profiles collected at the US Army Engineer Waterways Experiment Station, Coastal Engineering Research Center's Field Research Facility (FRF) in Duck, NC, These data are unique because they cover the most active region of the nearshore, from the dune out to a depth where net bottom changes appear to be negligible, and were collected coincident with detailed measurements of waves and water levels, The data were collected between 1981 and 1984 using the FRF's CRAB, a 10-m-tall motorized tripod, which, combined with an electronic "total station" surveying instrument, is capable of accuracies of a few centimetres in both elevation and position, 20. DISTRIBUTION / AVAILABILITY OF ABSTRACT Gd UNCLASSIFIED/UNLIMITED [1 SAME AS RPT 22a. NAME OF RESPONSIBLE INDIVIDUAL DD FORM 1473, 84 MarR 0 0301 OO041lebe e OO optic users 83 APR edition may be used until exhausted All other editions are obsolete (Continued) 21. ABSTRACT SECURITY CLASSIFICATION 22b. TELEPHONE (Include Area Code) | 22c. OFFICE SYMBOL SECURITY CLASSIFICATION OF THIS PAGE Unclassified Unclassified ————— SECURITY CLASSIFICATION OF THIS PAGE 19. ABSTRACT (Continued). The report discusses the data-collection methods, the sources of errors and data- editing procedures, and a brief summary of the actual profile data, Appendices contain the listings and plots of the survey data along with the tables and plots of the wave and water-level data. Unclassified _————————— SECURITY CLASSIFICATION OF THIS PAGE PREFACE This report was prepared at the Coastal Engineering Research Center (CERC) of the US Army Engineer Waterways Experiment Station (WES) as part of the Storm Erosion Studies Work Unit, Shore Protection and Restoration Program; Coastal Engineering Area, Civil Works Research and Development. Technical Monitors were Mr. John H. Lockhart, Jr., and Mr. John G. Housley, Head- quarters, US Army Corps of Engineers. Mr. Peter A. Howd and Mr. William A. Birkemeier of CERC's Field Research Facility Group prepared the report under the supervision of Mr. Curt Mason, former Chief, Field Research Facility; Mr. Thomas W. Richardson, Chief, Engineering Development Division; and Mr. Charles C. Calhoun, Jr., and Dr. James R. Houston, Assistant Chief and Chief, CERC, respectively. Messrs. Eugene W. Bichner, Charles R. Townsend III, Michael W. Leffler, Francis E. Sargent, and Ms. Rebecca J. Savage, plus many others, contributed to the collection of the data. Ms. Harriet M. Klein assisted greatly by untangling complexities of the English language. The wave and water-level data presented in the report were collected by CERC's Field Research Facility Measurements and Analysis Work Unit under the direction of Mr. Herman C. Miller. This report was edited by Ms. Jamie Leach of the WES Information Technology Laboratory. Commander and Director of WES upon publication of this report was COL Dwayne G. Lee. Technical Director was Dr. Robert W. Whalin. CONTENTS PREACH gene riebieichebeicie Chencleienemencioleholiel ich rexceselslohel eel Rola)(fReMouooNeNele t-Mohli= -NeKelioNolek=t Bel USE iO WAU. ohadsoseooovoasooacvoooodooDnouOpstiodogoobIOGOO DOOD GDOC PART I: NAY SAOWOKMUON Se ooecoéaoedocoovacDonGddG0ODdOdDHOOD OOOO GDOC PART DE: DVONMH WD WYN SoanGooacondgoGoDDO CO OOdOo CUO do bDODOUdDdIOgSOO ABS CSN GodcouododagbboD Ubu GOD LOD OU DOO DIDIOO CUO ODOD DON OGonOODOOS Barve Cada oui e yiSiverensnevelieheielexelelenoleieteieWell fe) a < 2 2 er < > Ww =I oe 900 1000 0 100 200 300 400 500 600 700 800 DISTANCE, M Figure 3. Distribution of sediment sizes across profile line 188 on 17 March 1981 7. The report includes five parts and six appendices. Part II discusses the survey methods used to collect the profile data and points out the sources of errors and methods used to minimize those errors. Part III presents summary comments about profile characteristics and patterns of profile change as an aid in interpreting the data. Part IV presents the associated wave and water-level data. The report is summarized in Part V. Appendices include plots of all the profiles (Appendix A), tables of the profile data along with a FORTRAN computer program to read and check the data (Appendices B and C), plots of wave height for the 4-year period (Appendix D), tables of wave height and period (Appendix E), and plots of the observed tides (Appendix F). PART II: PROFILE DATA 8. This part describes the methods used to survey the profile data and identifies potential sources of error and how errors were handled. The data for each profile line are a series of distance-elevation pairs measured during a repetitive number of surveys. The data extend from a shore-parallel base- line, located landward of the duneline, out to a usual depth of 8 to 9 m. Elevation data are referenced to the 1929 National Geodetic Vertical Datum (NGVD) using third-order control established at the FRF. Each survey of each profile line is uniquely identified by a profile number and survey number. 9. Surveys were initially conducted biweekly, the northern lines one week followed by the southern lines the next. This sequence changed in Decem- ber 1982 to biweekly surveys of all four lines. Full bathymetric surveys of 15 to 28 lines surrounding the FRF were also conducted monthly. Additional surveys were added to cover significant storms and in support of special experiments. The time interval between surveys varied from 1 to 44 days. The CRAB 10. The method used to collect the majority of the profile data is des- cribed in Birkemeier and Mason (1984). All profiles were surveyed using the FRF Coastal Research Amphibious Buggy (CRAB) shown in Figure 4. Built by the Wilmington District of the US Army Corps of Engineers, this unique three- wheeled vehicle was modeled after a vehicle originally built by Marine Travelift & Engineering of Sturgeon Bay to monitor a Corps of Engineers beach nourishment project. ll. The CRAB consists of a tripod of 20.3-cm schedule-80 aluminum tubing, connected at the base by horizontal members 2.1 m above the ground, and an operations platform 10.7 m above the ground. Power is supplied by a 39.5-kW Volkswagen engine on the deck which drives a variable stroke hydraulic pump. This pump transfers hydraulic fluid at 5.5 x 106 N/m2 or higher to hydraulic motors at each of the wheels. The variable stroke feature of the pump allows an infinitely variable gear ratio in either forward or reverse and constant engine speed. For strength and corrosion resistance, all hydraulic lines are stainless steel except for short flexible sections at the front steering wheel. Figure 4. The CRAB 12. Total vehicle weight is about 8,200 kg; the distance between the rear wheels is 8.2 m. Though it appears top heavy, the liquid-filled tires and wide wheelbase make it very stable. It has passed a 20-deg tilt test and is designed to withstand even steeper angles. 13. Top speed of the CRAB is 3.2 km/hr on land and somewhat less in the water. Since the maximum significant wave height for operation is 2 m, the CRAB is capable of operating in all but the most severe east coast storms. The large tires have a negligible effect on a hard rippled sand bottom; how- ever, scour around the tires has been observed in areas of active wave break-— ing or strong currents if the CRAB remains motioniess. The CRAB cannot be used on soft silty or loose bottoms. 14. All beach and dune surveying was accomplished with the standard 10 technique of sending a rodperson along the transect, stopping at regular intervals and breaks in slope. Early Stadia Surveys 15. From January to June 1981, the position and elevation of the CRAB were determined using an automatic level, located on the beach, to read a 12.3-m-high stadia board attached to the CRAB. This system was slow and sensitive to a wide range of errors. Primary sources of error included out- of-level or poorly aligned instruments, stadia reading errors, fieldbook and transcription errors, and instrument stationing errors. Estimated accuracy in distance was from +0.3 to +6 m. Vertical accuracy was estimated to vary from +0.03 to +0.6 m. Single points or surveys may have been in greater error. 16. Errors tended to increase with distance. This resulted from the increased difficulty in reading the stadia board and the greater impact of out-of-level errors. Because of these errors, data collected prior to June 1981 end approximately 600 m offshore. Points farther offshore were of ques- tionable accuracy and have been dropped. 17. Although of inferior quality to later surveys, the stadia survey data have been retained in the data set because the configuration of the profile lines (which is accurately represented) during this period is unusual and not later repeated. Electronic Survey System 18. In order to improve the speed and accuracy of the surveys, a Zeiss Elta-2 electronic surveying instrument with automatic data recording was used after June 1981 (Figure 5). This instrument incorporates in one compact unit a first-order electronic theodolite, distance meter, microprocessor, recharge- able power supply, and interchangeable solid state memory module. When opti- cally aimed at a reflecting prism on the CRAB, the instrument uses a col- limated infrared beam to measure the distance and the electronic theodolite to measure both horizontal and vertical angles. The microprocessor then uses these measurements plus the coordinates of the instrument to compute X, Y, and Z Cartesian coordinates of the ground point under the CRAB (corrected for alal Figure 5. Zeiss Elta-2 electronic surveying instrument earth curvature). 19. The stated operating range is 2 km with a triple prism assembly as used on the CRAB. Working accuracy of +3 cm or better is possible in both homizontal and vertical coordinates. Actual accuracy in a repetitive survey program is less because of changing atmospheric conditions, different instru- ment setups, and differences in the actual points surveyed. 20. The high accuracy of the system is shown in Figure 6 (Birkemeier and Mason 1984), which shows 10 repetitive surveys of a profile line collected over a 2-day period under near ideal conditions. While there is movement of the nearshore bar during the period shown, the stability of the offshore zone is of greater interest. Seaward of 220 m, the average range in elevation was 5 cm. The standard deviation of the 10 elevations for a given distance was usually less than 2 cm. 21. Only about 10 sec are required to aim, shoot, and record each survey point. Because the actual coordinates of each point are displayed, the CRAB can easily be kept on line to within +1.5 m through radio communications between the CRAB driver and the instrument operator. 02. 22. Once the survey is complete, the solid state memory is removed from the Zeiss, and the data are transferred through a Zeiss interface to a main- frame, desktop, or minicomputer. Because the system only requires proper aim from the operator, instrument reading errors and fieldbook entry errors are eliminated. 23. A unique feature of the Zeiss system is its ability to accept and record an additional piece of information (up to seven digits) with every survey point. This was used to manually enter the angular tilt of the CRAB, which was measured with two orthogonal tilt meters. Up to 14 deg of tilt was recorded on steep portions of the beach. The survey data were adjusted during Processing to account for the tilt. ACTUAL CHANGE ELEVATION, M 0 200 400 600 800 DISTANCE, M Figure 6. Results of 10 repetitive surveys of a single profile line using the CRAB/Zeiss system 113) Error Minimization in Profile Data-Collection Methods Error types 24. The biases and errors of the CRAB-Zeiss method can be broken down into two distinct categories: limitations of the instrument and operator errors. 25. The Zeiss Elta-2 is capable of measuring both horizontal and verti- cal angles to +0.6 sec of arc and distances to +1 cm in the mode most commonly used at the FRF. The specified range when using a triple prism configuration is 2 km. Increasing the number of prisms increases the range. 26. The instrument is sensitive to atmospheric and climatic varia- tion since it uses the speed of light to determine distance and optical aiming to measure the angles. The instrument does allow for rough adjustment for these variables. During the summer months, heat shimmer and temperature grad- ients near the land-sea interface may also affect the accuracy of the angular measurements. These errors are assumed to be negligible relative to other types of errors. 27. On one occasion the Elta-2 developed an internal problem which introduced a gradual bias into the data. This bias was identified and removed during processing. Errors of this type are difficult to remove because they occur radially from the instrument's position and do not uniformly affect the data. The instrument was repaired, and the malfunction did not reoccur. Treatment of errors in the data is discussed below. 28. Operator errors can result from improper leveling of the instrument, an error in positioning the instrument in coordinate space (particularly in elevation), movement of the tripod during the survey, and mis-aiming the instrument at the proper location on the prism cluster while taking the mea- surement. Constructed examples of typical nearshore survey errors and their impact are shown in Figure 7. All the measured points are affected by im- proper leveling or improper location in coordinate space. Individual points are affected by incorrect aim. 29. A different type of operator error results when topographically important points, such as the bar crest or trough, are missed. Survey points are selected based on the timed travel of the CRAB. More points are taken close to shore where the profile is more complex. It is possible for the 14 ELEVATION, M ANY PROFILE LINE LEGEND m———=— FIRST SURVEY SECOND SURVEY CORRECT DATA NOTE THAT BENCHMARK ERROR IS NOT OBVIOUS IN THESE REGIONS 1-FT (0.3m) BENCHMARK 100-FT (30.5 m) DISTANCE ~"~=> ERROR FROM HERE TO DISTANCE ERROR ~~~>>>~ 1S NOT OBVIOUS nA THESE REGIONS 100 200 300 400 500 600 700 800 900 1000 DISTANCE, M Samples of typical surveying errors and their effects 15 Zeiss operator to follow the vertical movement of the CRAB, but some sig- nificant features were probably missed. 30. A third type of operator error is caused by the instrument being triggered to begin a reading prior to properly aiming at the prisms. This short cut of triggering, then sighting the point, results in sampling the azimuth and zenith angles at the time of triggering and later use of these incorrect angles with the distance to the prisms to calculate the CRAB loca- tion. Errors affecting single points are usually easy to detect and remove. 31. An additional but unquantified source of error results from the thermal expansion and contraction of the CRAB frame and its liquid-filled tires. There is also some "error" introduced into the data by averaging the elevation over the 8.2-m base of the CRAB. The prism and the stadia board were mounted in the vertical plane of the back wheels equidistant between them. Some small error also occurs when sediment is compressed by the weight of the CRAB. Divers have observed tread marks on the bottom following the passage of the CRAB. No adjustment to the data has been made to account for these effects. It is suspected that they may be on the order of 3 to 6 cm. This amount of variation combined with the slight uncertainty of the over 100 different instrument setups results in a survey noise level that obscures small bed-level changes along the offshore reaches of the profiles. Error minimization 32. Two steps were taken to minimize the errors associated with the operation of the Zeiss. First, only known locations were chosen as sites for the setup of the instrument, random locations were not used, and each survey always began with a shot to a prism in a known location. If the measured location of the prism was outside certain tolerances, +6 cm horizontal or +1.5 cm vertical, the instrument was restationed. Second, periodic checks to the reference prism during the course of the survey helped ensure that the instru- ment had neither gone out of level nor was in need of restationing. Error identification 33. Errors in the data are most easily recognized through comparison with the past data collected for that profile. All data were compared with the immediately prior survey of the profile. More often than not, this com- parison shows where possible errors occur. The suspect points can then be inspected more carefully and a decision made as to whether the point or points were in error or represented real changes on the profile. Figure 7 shows the 16 utility of comparison. Questionable data, where no clear error could be discerned, were noted and compared with the next survey as well. This pro- vides a double check. Errors were also identified using the measured location of the reference prism shot in during the stationing procedures. Use of these measurements will be discussed in the next section. Error correction 34. Corrections made to the data consist of two primary types; deletion of points, and addition or subtraction of biases. The biases were either constant because of improper stationing of the instrument or gradual (distance dependent) resulting from improper leveling of the instrument. Vertical errors from mis-leveling become increasingly evident with increasing dis- tance. Vertical corrections to the data were made employing the known eleva- tion of the reference prism and by comparison with surveys of the same profile immediately before and after the questionable data. 35. Most often the constant vertical offsets were the result of either improper stationing of the instrument (setting its elevation incorrectly), or, rarely, improper entry of the elevation of the prism cluster on the CRAB. Both of these errors could be traced to the data through the recorded setup procedure. If there was no evidence of a mistake in stationing the Zeiss or entry of the prism height, removal of the suspected bias was dependent on two factors; the bias had to extend over the entire profile (past the normal closure point), and there had to be no reason to expect evidence of profile activity at depth. For instance, if the measured profile showed significant erosion at a depth below the extreme profile closure depth during a period of below-normal wave activity, errors were strongly suspected. However, the bias was removed from the data only after a second survey of the profile further indicated that an error had been made. 36. Gradual biases, or rotations of the data, which result from calibra- tion or leveling errors rather than stationing errors, can be more difficult to discern in the data. These corrections were made only to the early level and stadia board data. The shift in the data could be directly attributed to a miscalibration of the automatic level, or to a leveling error during or after setup of the instrument. The rotation needed to correct the data was determined by recalibration of the level. 37. Another category of data editing was the removal and/or correction of obviously erroneous data points. These points were usually the result of 17 improper entry of the height of the CRAB prism cluster into the Zeiss, errors due to the incorrect targeting of the prism cluster, or points which were unaccountably, but obviously, wrong. 38. The data were also corrected for the angle of tilt of the CRAB. The CRAB operator measures the two orthogonal angles on the main axes of the CRAB. Angles greater than 4 deg are radioed to the Zeiss operator who enters them into the recorded data. The angles are automatically accounted for during processing of the data. 39. Corrections made to the data, (except CRAB tilt corrections), are recorded in processing and data-collection logbooks and are coded into the data file. The meaning and format of the codes are presented in Appendix B. Special Notes on the Survey Data 40. A number of surveys within the data set require specific discussion regarding data quality. The early stadia surveys (January to 1 June 1981) have already been described. From approximately 14 December 1982 until 9 February 1983, the Zeiss Elta-2 was intermittently producing questionable results which appeared as a systematic vertical error. From 24 February 1983 through 28 March 1983, the instrument was being repaired and alternate methods were employed. These included the use of the stadia board and automatic level to determine elevation and a Motorola Mini-Ranger positioning system to deter- mine offshore distance (24 February to 3 March). A loaner Zeiss instrument was also employed (22 March to 28 March). 41. Because this was an unusually active period of profile response with a number of significant storms occurring, the data during this period have been retained in the data set. They do accurately reflect the changes in profile configuration which occurred, but the horizontal and vertical accu- racies are less than for the remaining CRAB/Zeiss data. 42. Data prior to December 1981 were saved only to whole feet in dis- tance and tenths-of-a-foot in elevation (normal accuracy for beach profile data). Because of the greater accuracy of the CRAB/Zeiss data, subsequent data are stored to tenths-of-a-foot in distance and hundredths-of-a-foot in elevation. This too has an impact on the overall accuracy of the data. 18 PART III: PROFILE RESULTS 43. The data presented in this report have been described by Birkemeier (1985a). Some of the discussion from that report is repeated here as an aid in interpreting the data. Profile changes at the FRF occur at time scales ranging from minutes to annual cycles and longer. Time scales resolvable with the data in this report vary between a few days and 1 to 2 years. Though the profiles have varied in configuration from nearly unbarred to triple barred, they typically exhibit a double bar with a narrow and well-defined inner bar and a broad outer bar. Figure 8 illustrates five of the configurations ob- served during the study. 44. The profile envelope defined by all surveys of line 188 is shown in Figure 9. The plot of maximum vertical change in the upper half of Figure 9 indicates most profile activity is restricted to depths less than 7 m with little measurable vertical variation at deeper depths (only 15-cm maximum variation at 8-m depth). It is not clear how much of this 15 cm is real. Birkemeier (1985b) examined the changes within the data set caused by storms and found that significant storm-induced bed-level changes (>3 cm) occurred at depths less than -6.4 m relative to mean low water (-6.8 m below National Geodetic Vertical Datum, NGVD). 45. One of the best indicators of profile configuration and activity is the location of the bar crest. Large changes to the profile in terms of volume changes always result in movement of the bar system. Minor storms typically force only the inner bar offshore, while larger storms may move both bars offshore, depositing sand in deeper water. Storm changes were rapid, occurring over periods of 1 to 5 days. The rapidity of these changes is discussed further in Sallenger, Holman, and Birkemeier (1985). 46. Onshore bar movement usually corresponded to periods of low waves between storms. The speed and the amount of recovery were affected by the wave conditions and by the poststorm configuration of the profiles. All the bar features tended to disappear during extended periods of low wave condi- tions. 47. An example of the modifications caused by storms is shown in Figure 10. The surveys bracket a series of three storms with the most severe occurring 13-15 November 1981. In contrast, the slow recovery from the changes caused by the fall 1981 storms occurred during 6 months of relatively 19 SINGLE INNER BAR 1 JUL 81 SINGLE OUTER BAR 28 JAN 82 MINIMUM BAR FEATURES 13 SEP 82 DOUBLE BAR 24 FEB 84 ELEVATION, M TRIPLE BAR 9 MAY 84 0) 200 400 600 800 DISTANCE, M Figure 8. Typical profile configurations occuring in the data set for profile line 62 calm conditions from February to August 1982 (Figure 11). 48. A critical feature of this data set is the fact that four profiles separated in space were measured. Thus, some feeling for the three- dimensional response of the beach is possible. Users of these data are 20 w ca) se E 20 € » Z : 5 : : : a (0) 200 600 800 400 DISTANCE, m PROFILE LINE 188, 127 SURVEYS FROM 20 JAN 81 TO 17 DEC 84 Figure 9. Envelope of all surveys of profile line 188 referred to Sallenger, Holman, and Birkemeier (1985) and Howd and Birkemeier (1987) for a discussion of the rapid three-dimensional changes that have been observed at the FRF. As an Eeanpien Figure 12 shows profiles 58 and 62 for a sequence of days during October 1982. Initially, both profiles show the bar moving offshore. By the 15th, the bar has begun to migrate onshore at line 62, but continues to move offshore along line 58. (These two profile lines are separated by less than 100 m.) Dall PROBIERREINERss --------- 5 QCT 81 17 Wor aN 3 NOV 81 5 16) NOV ELEVATION ABOVE MSL, m b fo) 200 400 600 800 DISTANCE FROM BASELINE, m Figure 10. Rapid offshore movement of sediment at line 188 resulting from passage of three fall 1981 storms PROFILE LINE 188 ee) OCS Pla) asp aeS TT 17 MAY 82 € 5 24 AUG 82 =] ea) = uJ > oO jaa) 0) ~< aur eaeuwone| 100 700 100 100 100 1300 100 100 100 100 100 100 100 100 100 100 700 100 100 100 100 100 100 100 100 100 TIME 100 100 100 1300 1900 800 1400 2000 200 1300 8.4 8.8 8.7 9.9 10.0 3.7 9.6 9.6 9.1 3.2 6.1 10.6 4.4 8.7 8.3 6.4 6.6 8.4 8.3 6.8 7.7 8.2 6.6 2.1 6.0 4.0 SEPTEMBER 1981 PERIOD (S) 8.3 9.0 10.0 12.0 12.0 14.0 12.0 12.0 14.0 11.9 Table El. (Continued) 0.6 6 0.4 7 0.4 8 0.3 9 0.3 10 0.6 11 0.5 12 0.5 13 0.4 14 0.7 15 0.7 16 0.6 17 0.7 18 0.6 19 0.5 19 0.6 20 0.5 20 0.7 20 0.9 20 0.9 21 0.6 21 0.5 21 0.4 21 0.5 22 1.4 22 0.9 23 24 25 26 27 28 29 30 31 HEIGHT (M) DAY 1.1 a aba 2 a5 3 2.0 4 2.2 5 2.3 6 2.5 7 2.7 8 2.4 9 1.6 10 (Continued) E4 100 100 100 1300 100 705 700 100 700 100 100 715 700 100 2000 200 800 1400 2000 200 800 1400 2000 200 800 200 710 700 700 700 700 100 100 100 9.0 5.0 10.0 7.0 9.0 10.0 10.0 10.0 12.0 11.0 10.5 5.0 6.0 4.0 8.0 9.0 9.0 11.0 10.0 11.0 12.0 12.0 12.0 12.0 11.0 12.0 11.0 12.0 6.0 8.0 9.0 8.0 6.0 7.0 ooo orerorn ° ° ° OON NON DON OCTOBER 1981 PERIOD (S) HEIGHT (M) 12.0 12.0 6.8 6.0 8.9 11.3 3.6 5.7 6.0 6.0 0.6 oOrereooore KY & ° ° NwWoouwooon oo (Sheet 4 of 22) i=] > ~< arone no! 100 700 100 100 100 100 100 100 100 200 700 100 100 100 800 100 100 100 100 100 100 100 100 100 TIME 900 1400 2000 200 100 719 1405 12.5 11.4 10.8 10.2 12.5 11.4 10.2 11.8 12.0 14.0 8.0 12.0 11.0 7.0 8.0 11.0 9.0 7.0 6.0 6.0 10.0 9.0 6.0 14.0 NOVEMBER 1981 PERIOD (S) 12.0 12.0 12.0 12.0 11.0 10.0 7.0 Table El. (Continued) 1.4 11 aba 12 0.8 12 0.9 12 0.8 12 0.6 13 0.6 13 0.7 13 0. 13 1.0 14 ierl 14 1.0 14 0.9 14 0.3 15 0. 15 0.4 15 0.4 16 1.4 16 0.9 17 0.6 18 0.5 19 0.4 20 1.4 21 0.9 22 23 24 25 26 27 28 29 30 30 30 30 31 31 HEIGHT (M) DAY 2.7 1 2.0 2 7p | 3 1.9 4 0.9 5 0.7 5 0.5 5 (Continued) E5 100 100 700 1400 2000 200 900 1400 2000 100 700 1400 2000 200 800 1909 109 807 200 100 700 100 100 100 1400 100 100 100 100 100 100 200 700 1400 1935 200 800 TIME 100 100 1300 100 100 900 1400 5.0 6.0 6.0 7.0 7.0 8.0 8.0 6.0 6.0 8.1 9.4 10.0 9.0 10.0 11.0 11.0 12.0 12.0 11.0 12.0 10.0 5.0 9.1 8.3 7.0 5.0 5.0 7.0 10.0 6.7 4.0 9.0 8.0 6.0 7.0 7.0 9.0 oorrrroococooorrRNnNnNn ° ° oOUunanunwMaaoanwouwnwoso ny NY ‘eel: wow nr 2.4 DECEMBER 1981 PERIOD (S) HEIGHT (M) 7.0 10.0 9.0 6.0 5.0 10.0 11.0 0.9 (Sheet 5 of 22) Table El. (Continued) 805 6.0 0.6 5 2000 12.0 2.6 700 7.0 1.0 6 200 12.0 (2683 700 11.0 0.7 6 800 12.0 2.0 700 14.0 0.6 7 100 toa ical 700 4.0 0.9 8 100 17256} 0.5 700 4.0 ake 9 100 5.0 0.8 800 7.0 2.7 10 100 7.0 1.4 1400 8.0 2.9 11 100 Yor ibG74 2000 9.0 3.0 12 100 6.0 0.7 200 10.0 3.0 13 100 7.0 iboal 800 12.0 3.5 14 100 9.0 0.8 1400 10.0 3.0 15 100 9.0 hy 200 14.0 3.0 16 100 10.9 1.3 800 12.0 3.5 17 100 9.9 0.6 1340 12.0 3.1 18 100 9.0 0.4 2000 11.0 Joa 19 100 6.0 aler4 200 12.0 SJoal 20 100 6.0 0.6 700 12.0 2.9 21 100 6.0 0.5 1900 5.6 0.9 yaya 100 9.4 0.5 100 7.0 0.7 23 100 6.4 0.6 100 4.0 0.8 24 1300 5.3 0.9 100 3.5 0.5 25 100 Lyoas 0.7 100 4.0 0.6 26 200 6.0 15) 100 4.0 0.6 27 100 6.0 1.4 100 4.0 0.4 28 100 8.0 1.0 100 12.0 0.4 29 100 9.7 0.8 100 8.0 (sad/ 30 100 L}57/ 1.4 800 9.0 2.8 31 700 4.7 Tes 1400 12.0 (se7/ 1900 13.7 205 100 13-1 (ar 800 12.0 2.6 1500 14.0 2.5 2000 14.0 2.0 200 17.0 1.9 100 14.0 1.0 100 6.0 1.3 100 4.0 0.9 JANUARY 1982 FEBRUARY 1982 TIME PERIOD (S) HEIGHT (M) DAY TIME PERIOD (S) HEIGHT (M) 100 10.0 2.9 1 100 8.0 0.9 700 11.0 Zol 2 100 5.0 1.0 100 10.0 ios} 3 100 7.0 11 1300 6.0 absal 4 100 8.0 1.0 100 Te30 Tez 5 200 10.0 aa 100 10.2 at eal 6 100 11.0 1.0 (Continued) (Sheet 6 of 22) E6 oOn @ 10 11 12 13 14 14 15 16 17 18 19 20 21 22 23 24 25 26 26 26 27 28 29 30 31 Oo i o 100 100 900 100 100 100 100 800 200 1900 100 200 200 200 100 100 100 200 100 100 100 100 800 1400 200 200 100 100 100 12.6 14.0 6.0 14.0 6.0 2.8 4.4 6.0 10.0 6.2 7.5 10.0 6.0 4.0 11.0 6.0 5.0 7.0 7.0 10.6 4.0 8.4 6.0 7.0 7.0 8.0 12.0 12.0 5.0 MARCH 1982 PERIOD (S) 11.0 10.0 8.0 6.0 8.0 3.0 10.0 6.0 8.0 5.0 Table El. (Continued) ry ° ° ° ° ° ° ° ° oorerrocj#esecooroerenrreroc9§jcooroo ° ° On uo wowowoagWdwuwaornuBQduwrwonronwdwouW4iwaWnn nN nN ° So ie) ° i=) HEIGHT (M) 2.2 i=) ° o ° cooreroo°4r o ° ° ° Oo nr nwowvondod om i=] iy Oo (Continued) E7 100 100 100 100 100 100 100 900 1400 200 100 100 100 2000 200 800 1400 2000 200 200 800 100 100 100 200 100 200 800 200 200 2300 800 1400 2000 TIME 100 100 100 100 100 200 100 700 100 100 5.0 10.0 11.0 4.0 10.0 8.0 6.0 7.0 8.0 9.0 10.0 11.0 7.0 10.0 12.0 11.0 11.0 12.0 11.0 11.0 11.0 11.0 7.0 10.0 9.0 10.0 6.0 7.0 6.0 11.0 7.0 9.0 10.0 11.0 APRIL 1982 PERIOD (S) 9.0 10.0 10.0 6.0 10.0 5.0 7.0 6.0 5.0 7.0 ° OrRFNNrFOCrF OO kK ° ° ° OwWOWUNN OCHA Ww o ° N 0.8 vi YN PY KR KK LY KH OC KH KH oneate 0. +0 ° ° aOounorouwoen © & oO HEIGHT (M) 0.9 0.7 0.8 0.9 (Sheet 7 of 22) Table El. (Continued) 11 100 9.0 0.9 11 1300 8.0 0.5 12 100 11.0 0.7 12 100 11.0 0.5 13 100 12.0 0.6 13 100 4.0 0.5 14 100 11.0 0.6 14 100 7.0 0.5 15 100 11.0 0.5 15 100 6.0 0.7 16 900 8.0 2.0 16 100 5.0 Lod 16 1400 8.0 2.0 17 100 7.0 0.9 17 200 10.0 1.1 18 100 7.0 rhsat 18 100 5.0 1.2 19 100 7.0 0.7 19 100 9.0 1.0 20 100 7.0 0.7 20 100 8.0 0.6 21 100 7.0 0.8 21 100 5.0 0.8 22 100 8.0 0.6 22 100 11.0 0.5 23 100 7.0 0.7 23 100 11.0 0.6 24 100 9.0 0.7 24 100 4.0 0.9 25 100 10.0 0.4 25 100 7.0 0.9 26 100 6.0 0.7 26 100 7.0 0.9 27 100 10.0 e774 27 100 9.0 0.6 28 100 10.0 0.9 28 100 7.0 1.4 28 824 6.0 Zed 29 100 7.0 0.6 28 1400 7.0 745k) 30 100 9.0 0.5 29 205 9.0 1.8 31 100 9.0 0.7 30 200 8.0 1.3 MAY 1982 JUNE 1982 DAY TIME PERIOD (S$) HEIGHT (M) DAY TIME PERIOD (S$) HEIGHT (M) 1 100 11.0 0.9 1 100 14.0 0.4 2 100 10.0 0.5 2 100 9.0 0.5 3 100 9.0 0.5 3 100 7.0 0.6 4 100 10.0 0.5 4 100 6.0 0.7 5 100 5.0 0.7 5 100 5.0 0.6 6 201 9.0 0.7 6 100 8.0 0.7 7 200 9.0 0.8 z/ 100 8.0 0.8 8 100 10.0 0.6 8 100 9.0 1.0 9 100 11.0 1.0 9 100 9.0 Mere 10 100 11.0 0.8 10 100 10.0 1.4 11 100 11.0 0.8 abal 100 12.0 13 12 100 14.0 2.0 12 100 11.0 1.4 13 100 12.0 1.3 13 100 11.0 1.4 14 100 11.0 absal 14 100 11.0 0.8 15 100 10.0 1.0 15 100 9.0 0.7 16 100 9.0 0.9 16 100 9.0 0.6 17 100 11.0 1.0 17 100 10.0 0.6 18 100 9.0 0.6 18 100 14.0 ORS 19 100 9.0 0.6 19 100 7.0 0.9 20 100 9.0 0.5 20 100 10.0 0.7 21 100 9.0 0.4 21 100 10.0 0.6 22 100 8.0 0.4 22 100 9.0 0.4 (Continued) (Sheet 8 of 22) E8 23 100 24 100 25 100 26 100 27 100 28 100 29 100 30 100 31 100 DAY TIME 1 100 2 100 3 100 4 100 5 100 6 100 7 100 8 100 12 1300 13 100 14 100 5) 100 16 100 17 100 18 100 19 100 20 100 21 100 22 100 23 100 24 100 25 100 26 100 27 100 28 100 29 100 30 100 31 100 7.0 7.0 9.0 9.0 10.0 9.0 9.0 9.0 10.0 JULY 1982 PERIOD (S) 10.0 5.0 6.0 5.0 6.0 7.0 6.0 9.0 8.0 11.0 11.0 10.0 10.0 7.0 11.0 9.0 7.0 2.0 7.0 10.0 7.0 4.0 10.0 8.0 9.0 7.0 7.0 9.0 Table El. (Continued) 0.6 23 0.7 24 0.8 25 0.8 26 0.7 27 0.6 28 0.6 29 0.4 30 0.3 HEIGHT (M) DAY 0.4 1 0.6 2 0.5 3 0.4 4 0.8 5 boa 6 0.9 vi 0.4 8 0.4 9 0.4 10 0.5 11 0.4 12 0.4 13 0.4 14 0.4 15 0.3 16 0.3 17 0.3 18 0.7 19 0.4 20 0.3 21 0.5 22 0.6 23 0.4 24 0.4 25 0.4 26 (gk) 27 0.5 28 29 29 30 31 (Continued ) E9 100 100 100 100 100 100 100 700 10.0 8.0 7.0 11.0 7.0 8.0 6.0 8.0 AUGUST 1982 PERIOD (S) 14.0 12.0 12.0 11.0 10.0 8.0 0.3 0.5 0.6 0.4 0.3 0.3 0.5 0.4 HEIGHT (M) 0.4 0.4 0.4 0.5 0.7 0.5 0.4 0.7 0.5 0.3 0.3 0.4 1.1 0.6 0.5 0.4 0.4 0.3 0.4 0.4 0.4 0.8 0.7 (Sheet 9 of 22) i=] WNRrIARANRNRINNNNN YN RP RP RP PRP RP RP Pee SCWO ON DU FP WNHKRPOCOHO AN BDU FPWNHEeE SO TIME 100 100 100 100 100 700 100 100 100 100 100 100 100 100 100 100 100 100 100 710 100 100 100 100 100 100 100 100 100 100 SEPTEMBER 1982 PERIOD (S) 8.0 6.0 7.0 9.0 6.0 6.0 6.0 4.0 10.0 11.0 10.0 8.0 6.0 6.0 6.0 10.0 11.0 10.0 11.0 6.0 8.0 6.0 8.0 11.0 9.0 5.0 8.0 8.0 9.0 6.0 Table El. (Continued) HEIGHT (M) 0.4 ° ° ° ° ° ° ° ° eoorroeocjecorooo rerroco$§#ceooorroo#r NOWOWR WOU ADANUANNPRYPNDN DON FSF FO O W i=] NMPNYMANRNNAYNAYNNNNNNYNY NYY RP RP YP RP PPP RP RP RP RP RP RP RP RP RP PrP Pe OOMDONODUU UF P RP PWWNHRP TOKO ON DUFF WWWNNNNPRP RP RP RP OCT OS (Continued) E10 OCTOBER 1982 PERIOD (S) 7.0 10.0 7.0 9.0 11.0 14.0 11.0 8.0 9.0 6.0 8.0 12.0 14.0 14.0 14.0 14.0 14.0 14.0 17.0 17.0 12.0 14.0 17.0 12.0 14.0 12.0 11.0 6.0 14.0 14.0 6.0 7.0 10.0 5.0 6.0 7.0 8.0 10.0 12.0 14.0 14.0 12.0 12.0 10.0 12.0 12.0 HEIGHT (M) 1.6 ° RPrPerere WWWWWWoNDNPRP RP TCO OC CRP RP OrRPRNN YN KY ° ° ° ° ° ° e ° ° ° WON WOrROwWUP UY DY KPUDAAN Cr HKU OCOrYF UW (Sheet 10 of 22) oO NNNNNNNNNYNNNNNNNNNNN RP RP PP PPP Pee PSESBSRRESSS SORDPDNNEPEP DB ooo oo O ONG U4 & ON He oO 4 — = m 100 Ye oo oo 100 100 100 100 100 700 100 100 100 100 100 100 100 100 100 100 2000 200 800 1300 2000 200 800 1400 200 800 1500 2000 200 800 1400 2000 200 2000 100 100 100 100 100 NOVEMBER 1982 PERIOD (S) 17.0 17.0 6.0 7.0 6.0 8.0 7.0 9.0 11.0 5.0 7.0 8.0 7.0 6.0 10.0 6.0 11.0 9.0 7.0 8.0 8.0 10.0 11.0 12.0 12.0 12.0 12.0 12.0 14.0 14.0 14.0 14.0 11.0 14.0 14.0 12.0 7.0 6.0 6.0 10.0 7.0 6.0 Table El. (Continued) 30 31 HEIGHT (M) DAY 0.5 1 0.5 2 0.5 3 0.6 4 0.9 5 0.8 6 0.7 7 0.7 8 0.5 9 0.9 9 abel 10 0.7 11 1.0 12 1.4 12 0.9 12 1.4 12 0.8 13 0.9 13 13 14 Pace 15 Zed 16 (oat 17 2.0 17 2.3 18 23 18 2.2 18 2.0 18 20) 19 eal 19 2.0 19 2.0 19 2.4 20 2.0 21 2.6 22 7AGe) 23 1.9 24 iis 25 230 26 0.8 27 0.4 28 S72 29 Lee 30 (Continued ) Ell TIME 800 100 100 1300 100 100 100 100 100 2100 100 107 107 700 1400 2000 800 1400 1300 100 100 100 817 100 800 1400 2000 100 800 1400 2000 100 100 700 100 100 100 100 100 100 100 100 DECEMBER 1982 PERIOD (S) 10.0 5.0 9.0 10.0 10.0 12.0 11.0 6.0 6.0 6.0 7.0 10.0 6.0 7.0 11.0 11.0 11.0 12.0 12.0 12.0 7.0 6.0 7.0 6.0 7.0 8.0 11.0 11.0 14.0 12.0 14.0 14.0 12.0 17.0 16.8 15.8 14.0 1533 7.8 5.7 6.3 4.9 HEIGHT (M) 0.5 0.6 oo ° ° ul ° OO ° WOMWDAMAUAUNAWOHWOHOKFKNNDWDOCWNDWDATOTCTOONNWUYU FON DWMNOON ON YW UW FOOD OO ODO OKFP NR NNKYPNNNKYFPNNKFP ORF NNWNNPRP Or NF FOO SO ° O01. '6 ° QO “OF ° Gheet® 11) o£ 22) o PP eB oo o rPrPrP FP Pe won NF OC RPNYUNARAYNNANNNNNANNNNNNNNKP KP PP Pe OOODXROMDAOANNOAUDEWNNKPRPOCOH ANDY &S 100 TIME 100 100 100 100 700 1900 100 100 100 100 100 100 700 1300 1900 100 100 1300 100 100 100 100 100 100 1300 100 100 1900 100 700 100 100 100 100 100 1900 100 700 1300 1900 100 700 1300 JANUARY 1983 PERIOD (S) 11.0 10.0 5.0 6.0 6.0 7.0 9.0 7.0 9.0 9.0 4.0 7.0 10.0 10.0 10.0 10.0 10.0 7.0 11.0 11.0 14.0 11.0 12.0 12.0 6.0 8.0 6.0 7.0 7.0 7.0 9.0 10.0 9.0 9.0 8.0 8.0 9.0 11.0 9.0 14.0 12.0 12.0 12.0 Table El. (Continued) 0.4 31 HEIGHT (M) DAY 1.3 1 0.7 2 AS. 3 15) 4 2.0 5 2.0 6 1.9 7 Wee4 8 0.7 9 0.4 10 1.0 11 1.9 11 2.6 11 2.4 11 ots 12 Pou 12 1.0 13 arr 14 1.5 14 0.8 14 0.9 14 0.6 15 ORS 15 0.4 15 1.3 15 a5 16 1.4 17 Boal 18 2.0 18 (on 18 1.6 18 1.2 19 0.5 20 0.5 20 0.7 20 (35e) 20 2.4 21 37:5) Pal 3.2 21 2.9 21 2.8 22 2.8 22 2.2 23 (Continued) E12 TIME 100 100 100 100 100 100 100 100 100 100 100 700 1300 1900 100 700 100 100 700 1300 1900 100 700 1300 1900 100 100 100 700 1300 1900 100 100 700 1300 1900 100 700 1300 1900 100 700 100 FEBRUARY 1983 PERIOD (S) 11.0 1.9 HEIGHT (M) 1.1 o ° N@OWOMDOCON DN © corrrror,r 5 6 4 2.2 (Sheet 12 of 22) 29 30 31 oO weOarvanruonee nn |Dd NNYNNNRYRYP PRP RP RPP RPP RP PRP PrP PP Pe WHR OCHO WO WWAWAANNN DYN FSF WNNRHR OC 1900 100 100 TIME 100 700 1300 1900 100 100 100 100 100 100 100 100 100 100 100 1300 700 100 100 100 100 1300 1900 100 700 1300 1900 100 700 100 100 100 100 100 12.0 12.0 11.0 MARCH 1983 PERIOD (S) 8.0 11.0 12.0 10.0 11.0 11.0 10.0 12.0 10.0 7.0 8.0 9.0 10.0 9.0 10.0 11.0 8.0 6.0 14.0 10.0 5.0 8.0 7.0 10.0 10.0 11.0 11.0 11.0 11.0 11.0 12.0 10.0 4.0 11.0 Table El. (Continued) 2.0 24 1.6 25 0.9 26 26 26 26 27 27, 27 28 HEIGHT (M) DAY 1.8 1 2.8 1 Zt 1 Zeik 1 AS 2 0.9 3 0.6 4 0.4 5 0.6 6 1.0 7 0.6 8 G74 9 ave. 10 1.0 atl 1.6 12 2.0 13 1.0 14 0.6 15 0.5 16 0.4 7, 1.6 18 2.0 19 2.4 20 2.8 21 3.3 22 3.0 23 CBU/ 24 07h 25 2.0 26 ak 574 27 -9 28 0.8 29 0.6 30 0.4 (Continued) E13 100 100 100 700 1300 1900 100 700 1300 100 TIME 100 700 1300 1900 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 13.0 12.0 10.0 11.0 12.0 11.0 12.0 14.0 12.0 12.0 APRIL 1983 PERIOD (S) 7.0 11.0 11.0 10.0 12.0 8.0 11.0 9.0 9.0 14.0 9.0 8.0 11.0 13.0 10.0 10.0 10.0 9.0 7.0 12.0 11.0 6.0 10.0 4.0 9.0 10.0 8.0 12.0 9.0 11.0 10.0 14.0 12.0 1.2 1.0 1.9 2.7 2.8 2.3 2.2 2.2 2.0 1.2 HEIGHT (M) oororrero9qeoeorroo9oce © ° ° ° ° ° ° ° Pun OoOownNoonoanNnrwoaww ° (Sheet 13 of 22) i=] NNN NNNNNN KN YP RP RP RP RP PP PP OODON OU FWNRHRF OW AN FDU SPWNe OS 1900 100 700 1300 1900 100 700 1300 1900 100 1900 100 100 100 100 1900 TIME 100 100 100 100 100 100 100 100 700 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 6.0 8.0 11.0 12.0 14.0 14.0 15.0 13.0 13.0 13.0 12.0 11.0 10.0 5.0 7.0 6.0 MAY 1983 PERIOD (S) 11.0 8.0 9.0 9.0 8.0 9.0 8.0 8.0 6.0 6.0 9.0 10.0 5.0 8.0 10.0 12.0 7.0 9.0 9.0 8.0 8.0 9.0 9.0 7.0 8.0 17.0 8.0 14.0 11.0 Table El. (Continued) 2.2 3.2 3.3 3.3 3.1 2.8 2.9 2.8 2.3 2.4 2.1 1.9 0.8 0.5 0.8 2.4 HEIGHT (M) DAY (Continued) E14 JUNE 1983 PERIOD (S) 9.0 5.0 10.0 14.0 12.0 9.0 6.0 7.0 6.0 7.0 7.0 8.0 9.0 9.0 8.0 9.0 6.0 9.0 8.0 9.0 9.0 9.0 4.0 6.0 9.0 9.0 11.0 11.0 11.0 HEIGHT (M) 0.6 0.7 0.5 0.5 0.4 0.4 0.4 0.4 0.6 2.0 1.8 1.1 0.9 0.6 0.4 0.5 0.5 0.6 0.8 0.9 0.8 0.6 0.9 1.1 0.8 0.5 0.3 0.3 0.3 (Sheet 14 of 22) Oo NNN NY PP PP RP PPP Pe WRNRrROOON OU FPF WN KY CO TIME 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 700 100 100 100 100 100 Table El. (Continued) 10.0 0.8 29 100 9.0 0.7 30 100 JULY 1983 PERIOD (S) HEIGHT (M) DAY TIME 6.0 0.8 1 100 7.0 0.6 2 100 9.0 0.5 3 100 10.0 0.6 4 100 8.0 0.5 5 100 17.0 0.3 6 100 3.0 0.6 7 100 8.0 0.7 8 100 7.0 0.6 9 100 8.0 0.5 10 100 6.0 0.6 11 100 7.0 0.4 ibe 100 10.0 0.4 13 100 12.0 0.4 14 100 10.0 0.3 15 100 10.0 0.3 16 100 10.0 0.2 17 100 10.0 0.4 18 100 10.0 0.3 19 100 10.0 0.3 20 100 10.0 0.3 21 100 7.0 0.5 22 100 8.0 0.7 23 100 8.0 0.5 24 100 10.0 0.4 25 100 14.0 0.7 26 100 14.0 0.6 27 100 14.0 0.6 28 100 8.0 0.6 29 100 7.0 0.7 30 100 10.0 0.4 31 100 SEPTEMBER 1983 PERIOD (S) HEIGHT (M) DAY TIME 4.0 0.9 1 100 8.0 0.7 2 100 5.0 11 3 100 12.0 0.5 4 100 10.0 0.6 5 100 14.0 0.4 6 100 (Continued ) E15 AUGUST 1983 PERIOD (S) 12.0 7.0 8.0 17.0 10.0 9.0 7.0 10.0 14.0 14.0 14.0 7.0 5.0 7.0 8.0 9.0 8.0 8.0 9.0 10.0 10.0 5.0 6.0 4.0 7.0 7.0 7.0 9.0 8.0 7.0 6.0 OCTOBER 1983 PERIOD (S 11.0 10.0 10.0 14.0 14.0 14.0 HEIGHT (M) 0.3 0.4 0.4 HEIGHT (M) 0.9 0.6 0.5 0.6 0.5 0.5 (Sheet 15 of 22) 15 Oo 100 100 100 100 100 100 100 100 100 700 1300 1900 100 100 100 100 100 100 100 100 100 100 100 100 100 700 1900 100 700 1300 1900 100 TIME 100 100 100 100 100 100 100 14.0 11.0 6.0 10.0 8.0 14.0 14.0 4.0 8.0 8.0 7.0 9.0 11.0 7.0 10.0 11.0 10.0 9.0 4.0 6.0 10.0 4.0 8.0 9.0 10.0 10.0 9.0 11.0 11.0 11.0 12.0 9.0 NOVEMBER 1983 PERIOD (S) 8.0 7.0 7.0 11.0 12.0 14.0 12.0 Table El. (Continued) 0.4 0.3 0.7 0.4 0.3 0.2 0.3 0.5 2.6 2.2 2.2 2.0 1.7 1.1 0.7 0.6 0.4 0.5 0.9 0.8 0.5 0.6 0.8 1.5 1.1 2.1 2.4 2.6 2.5 3.0 2.8 2.5 0.7 HEIGHT (M) DAY 1 2 3 4 5 6 7 (Continued) E16 14.0 12.0 6.0 6.0 7.0 9.0 9.0 10.0 10.0 11.0 11.0 11.0 11.0 9.0 11.0 10.0 9.0 5.0 6.0 8.0 9.0 7.0 10.0 8.0 8.0 10.0 12.0 12.0 14.0 6.0 7.0 10.0 12.0 6.0 11.0 6.0 7.0 DECEMBER 1983 PERIOD (S) 7.0 14.0 3.0 6.0 8.0 8.0 12.0 OL OF 05. 0 . e e@ NPOoONU OWA N KNOT wWOROCOCOrFN OW NYNRFOCOCOCOCORPRNRFNNNNF OO CO N ° iy ny ° ae ene oT nN On Oror FF De KH W or oo rerenNN KY KF & N HEIGHT (M 0.3 0.5 ooor o NO UW > & (Sheet 16 of 22) Table El. (Continued) 8 100 12.0 0.5 8 100 5.0 0.5 9 100 14.0 0.6 9 100 14.0 0.4 10 100 9.0 le 10 100 12.0 0.3 11 100 9.0 0.9 11 100 11.0 0.5 12 100 9.0 0.4 12 100 7.0 1.8 13 100 6.0 1.0 12: 700 11.0 (age 14 100 6.0 0.6 12 1300 9.0 2.9 15 100 5.0 0.4 12 1900 10.0 ae 16 100 11.0 ayaa 13 100 11.0 2.0 17 100 9.0 0.3 13 700 9.0 2.0 18 100 4.0 0.5 14 700 11.0 1.0 19 100 12.0 0.3 15 100 9.0 0.7 20 100 11.0 0.2 16 700 10.0 0.5 21 100 8.0 0.8 17 100 10.0 0.5 22 100 9.0 0.5 18 100 17.0 0.9 23 100 12.0 0.3 19 100 6.0 e7/ 24 100 12.0 0.3 19 700 6.0 2.0 25 100 7.0 0.7 19 1300 7.0 2.6 26 100 10.0 0.4 20 100 9.0 2.0 27 100 10.0 0.2 21 100 7.0 7, 28 100 12.0 0.3 21 1300 6.0 22. 29 100 5.0 0.6 22 100 7.0 1.8 30 100 7.0 0.3 22 1300 10.0 Coa 23 100 10.0 1.0 24 100 5.0 ikoe4 25 100 7.0 1.6 26 100 5.0 0.8 27 100 9.0 0.3 28 100 14.0 0.1 29 100 9.0 0.5 30 100 8.0 1.4 31 100 7.0 WG 7/ JANUARY 1984 FEBRUARY 1984 DAY TIME PERIOD (S) HEIGHT (M) DAY TIME PERIOD (S) HEIGHT (M) 1 100 10.0 (air) 1 100 6.0 0.9 1 700 11.0 2.0 2 100 11.0 0.6 1 1300 11.0 (s08} 3 100 11.0 0.5 2 100 7.0 1.9 4 100 7.0 1.0 3 100 11.0 lieve: 5 100 8.0 0.8 4 100 12.0 eat 6 100 9.0 0.6 5 100 11.0 0.7 7 100 6.0 abnal 6 100 5.0 0.5 8 100 6.0 ya 1/ 100 9.0 0.4 9 100 8.0 0.6 8 100 5.0 0.9 10 100 10.0 0.3 9 100 10.0 0.3 11 100 10.0 0.4 (Continued) (Sheet 17 of 22) E17 Oo ree Pe WW DN OS 100 100 700 1300 1900 100 700 1300 1900 100 700 1900 100 700 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 TIME 100 100 100 100 100 100 100 100 100 100 1300 700 1900 5.0 8.0 7.0 9.0 10.0 7.0 9.0 9.0 6.0 11.0 9.0 12.0 12.0 11.0 12.0 10.0 11.0 9.0 9.0 7.0 10.0 6.0 4.0 10.0 9.0 11.0 11.0 10.0 6.0 9.0 9.0 MARCH 1984 PERIOD (S) 4.0 12.0 10.0 6.0 14.0 7.0 6.0 12.0 7.0 10.0 6.0 7.0 10.0 Table El. (Continued) 0.6 12 1.5 13 213 14 2.5 14 (357/ 14 2.6 5 2.7 16 2.4 17 2.6 18 oul 19 2.1 20 rage 21 Gael 22 2.0 23 2.0 23 1.4 24 0.9 25 0.8 26 yD) 27 eel 28 0.7 29 absal 0.8 0.7 real 0.6 0.6 0.8 liz 0.6 0.4 HEIGHT (M) DAY 0.7 1 0.3 2) 0.2 3 0.6 4 O57; 5 0.7 5 1.4 6 0.8 7 0.5 8 ns74 9 1.4 10 1.4 11 2.0 12 (Continued ) E18 100 100 100 1300 1900 100 100 100 100 100 100 100 100 700 1300 100 100 100 100 100 100 11.0 6.0 8.0 10.0 11.0 10.0 10.0 9.0 10.0 10.0 8.0 10.0 11.0 3.0 7.0 11.0 11.0 7.0 5.0 9.0 10.0 APRIL 1984 PERIOD (S) 11.0 12.0 11.0 10.0 11.0 12.0 12.0 9.0 11.0 11.0 6.0 9.0 7.0 0.5 0.4 1.4 2.0 2.0 2.5 1.4 0.8 0.9 0.7 0.5 0.5 0.7 0.8 2.0 0.9 0.4 0.5 0.6 2.3 0.6 HEIGHT (M) 1.2 0.8 ° ° ° Pere OoooreNnN KF Oo ° ° ° ° OrePFPFNNN OO OW DO OD (Sheet 18 of 22) oO NNNNP RP PP RP RP PP Pe WONRPOWO ON OU fF&WN Fe SO 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 10.0 10.0 12.0 12.0 7.0 12.0 14.0 10.0 11.0 11.0 11.0 6.0 7.0 10.0 9.0 10.0 8.0 12.0 MAY 1984 PERIOD (S) 11.0 10.0 9.0 7.0 11.0 8.0 7.0 7.0 4.0 7.0 6.0 8.0 9.0 8.0 6.0 3.0 6.0 8.0 12.0 11.0 9.0 10.0 10.0 Table El. (Continued) 1.6 13 0.8 14 0.8 15 akeal 16 1.8 17 1.5 18 Vol 19 1.0 20 0.7 21 0.5 22 0.3 23 0.5 24 0.6 25 1.4 26 0.8 27 ak 74 28 1.4 29 aaah 30 HEIGHT (M) DAY 0.7 1 0.5 2 0.4 3 0.8 4 0.8 5 0.4 6 0.4 7 0735 8 0.7 9 0.4 10 0.4 11 0.3 12 0.4 13 0.4 14 1.5 15 0.7 16 0.6 17 ibaa 18 1.9 19 0.4 20 0.3 21 0.3 22 0.4 23 (Continued) E19 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 11.0 9.0 8.0 12.0 9.0 11.0 11.0 9.0 10.0 10.0 11.0 12.0 11.0 12.0 11.0 10.0 11.0 11.0 JUNE 1984 PERIOD (S 10.0 6.0 7.0 11.0 11.0 10.0 10.0 10.0 9.0 9.0 7.0 8.0 10.0 e o [J uN ODO ON UDO OC oooooooo so 0.8 0.8 0.8 1.2 o a 0.5 oo Oo ° ° e - Pu RPrProoorrneo NwWOfWU ON Ww HEIGHT (M) ooooooooo09s9jgeoo ° e ° ° ° ° OF wWWwWwWwWw Po vi oo ° ° an w ooo > & Ow 0.6 o ° a 0.7 o ° o (Sheet 19 of 22) = Oo WOWNNN NN NNN NN YP PP PPP ee POoOowWwWOnN OOF WNPRPTHWAO AN BODY FP WN KF 100 100 100 100 100 100 100 100 700 TIME 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 JULY 1984 PERIOD (S) 9.0 8.0 9.0 8.0 9.0 6.0 7.0 8.0 8.0 7.0 10.0 9.0 9.0 12.0 7.0 9.0 10.0 9.0 8.0 17.0 17.0 14.0 7.0 12.0 14.0 14.0 14.0 9.0 4.0 5.0 6.0 Table El. (Continued) 0.7 24 0.6 25 0.6 26 0.6 27 0.5 28 0.7 29 1.0 30 1.8 Coal HEIGHT (M) DAY 0.6 1 0.5 2 0.5 3 0.4 4 0.5 5 0.6 6 0.9 7 0.7 8 0.8 9 0.6 10 0.4 11 0.4 12 0.3 3 0.3 14 0.3 5 0.4 16 0.4 17 0.5 18 0.5 19 0.5 20 0.5 21 0.6 22 0.7 23 0.5 24 0.3 25 0.3 26 0.4 27 0.4 28 0.8 29 0.8 30 0.6 31 (Continued) E20 100 100 100 100 100 100 100 4.0 7.0 10.0 9.0 9.0 11.0 7.0 AUGUST 1984 PERIOD (S) 8.0 10.0 10.0 8.0 14.0 9.0 9.0 9.0 9.0 7.0 5.0 8.0 8.0 5.0 7.0 7.0 8.0 10.0 9.0 10.0 6.0 6.0 5.0 6.0 6.0 6.0 8.0 10.0 8.0 9.0 10.0 0.8 0.9 0.8 0.7 0.7 0.5 0.6 HEIGHT (M) 0.5 0.5 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 0.5 0.5 0.4 0.5 0.4 0.4 0.5 - © oF 6 na Oo WwW ° wor Uunow DA & OD ooooererooo oe ° ° ° (Sheet 20 of 22) i=] WWWWNYNNYNNNNNNNNIN DY DN YP RP RP RP PP RP RP Pe GCOOO WMO WO ON NOU FPFPWNRPOWA ON FODUYO FWNKYe OC TIME 100 100 700 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 700 100 100 100 100 100 100 100 700 100 100 1900 100 700 1300 1900 SEPTEMBER 1984 PERIOD (S) 8.0 17.0 17.0 14.0 5.0 6.0 6.0 9.0 6.0 7.0 8.0 7.0 5.0 6.0 7.0 6.0 7.0 8.0 10.0 9.0 11.0 9.0 9.0 12.0 11.0 10.0 6.0 7.0 9.0 10.0 7.0 9.0 10.0 11.0 10.0 Table El. (Continued) HEIGHT (M) DAY 0.3 1 0.4 2 0.3 3 0.4 4 0.8 5 0.9 6 1.2 7/ v0 8 1.4 9 1.2 10 ayeal 11 0.8 11 1.0 11 0.8 12 its} 12 1.6 12 1.9 12 WG 7/ 13 ee) 13 1.0 13 0.8 13 0.7 14 0.8 14 0.6 14 0.6 14 0.5 15 1.9 15 2.0 15 1.4 16 lied 17 7Boh) 17 (4G7/ 18 2.5 18 (a5 19 72604 20 21 22 23 24 25 26 27 28 29 30 31 (Continued) E21 TIME 100 100 100 100 100 100 100 100 100 100 100 1300 1900 100 700 1300 1900 100 700 1300 1900 100 700 1300 1900 100 700 1300 100 100 1900 100 1300 100 100 100 100 100 100 100 100 100 100 100 100 100 OCTOBER 1984 PERIOD (S) 10.0 10.0 9.0 11.0 11.0 10.0 6.0 5.0 9.0 10.0 12.0 9.0 9.0 10.0 9.0 11.0 12.0 12.0 12.0 12.0 14.0 14.0 14.0 12.0 12.0 12.0 12.0 12.0 12.0 12.0 14.0 17.0 14.0 17.0 14.0 11.0 10.0 11.0 9.0 7.0 11.0 11.0 10.0 10.0 10.0 9.0 HEIGHT (M) 1.7 1.3 f=) sii ae > oO ° ° . NNeroCcocorF OOo So ° NOODOON OU WH SS 2.5 CORP RN RFP NF RPNN N ON =O POrnNrYP non oarr=n 0.4 Sheets 2 ok 12:29) NOVEMBER 1984 PERIOD (S) 4.0 7.0 6.0 7.0 7.0 8.0 10.0 10.0 6.0 6.0 10.0 10.0 10.0 12.0 12.0 14.0 7.0 11.0 5.0 5.0 5.0 6.0 6.0 7.0 4.0 6.0 4.0 6.0 8.0 8.0 9.0 8.0 11.0 Table El. HEIGHT (M) 1.3 1.1 Ny ° N ° ° ° ° ° ° ° ° ° ° ° ° cooorrrrPnNnrocoroororrPorPrPKP RPP YP NN O20 ° ° Od 4 . ° o AOoonuUnNn Wen PUoYeFPPFrPrAWGAON CH PNY OW Oe o ° o 0.7 E22 (Concluded) DECEMBER 1984 PERIOD (S) 11.0 10.0 5.0 7.0 6.0 9.0 6.0 5.0 6.0 10.0 9.0 5.0 9.0 10.9 12.3 9.7 9.8 10.9 9.8 12.3 12.3 10.9 9.8 4.5 9.8 6.9 8.8 8.8 10.9 9.8 6.4 HEIGHT (M) 0.5 0.3 (Sheet 22 of 22) APPENDIX F: TIDE LEVELS AT PIER END, 1981-1984 This appendix contains plots of the observed tide levels at the end of the FRF pier. The data are collected by the National Oceanic and Atmospheric Administration/National Ocean Service (NOS) as part of their nationwide tide gaging program. Missing data have been interpolated by NOS. The tide gage, being located near the end of the pier, is occasionally within the surf zone. Thus, the tide data are influenced by setup, setdown, and storm surges, depending on the conditions at the time of the measurement. Fl TIDE HEJGHT ABOVE NGVD, om 5 JAN 1981 2AM nnnniany 2 FEB 1981 H =| -2 HAR 1981 2 1 0 . Eee dc ie ssi ah Sala eA 3 APR 1981 o } 2 MAY 1981 aN) 3 2 JUN 198] i bad | AUG 1981 t) onw bon oR & SEP 1981 a] 2 OCT 198) He An ones RS VON LNAI S SRA EIU | 2 NOVY 1981 A 3 2 DEC 198) BPW -{ =2 123 45 6 7 6 M 1011 12 13 1415 16 17 16 19 2! 2B a4 5 7 SI DAY OBSERVED TIDE HEIGHTS AT FRF PIER END Figure Fl. Tide level record, 1981 F2 TIDE HEIGHT ABOVE NOVD, m JAN 1982 FEB 1962 HAR 1982 APR 1962 MAY 1982 AUG 1962 SEP 1982 . : OCT 1982 NOV 1982 DEC 1962 12.3 45 6 7 6 8 1011 1213 14 15 16 17 18 19 20 2! 22 3 24 25 OB 27 28 29 SO SI DAY OBSERVED TIDE HEIGHTS AT FRF PIER END Figure F2. Tide level record, 1982 ' retome thom mann Manny MORN LOR MtOR ew MORN MORK w MlLOmw Loew er omm F3 TIDE HEIGHT ABOVE NGVD, » ; JAN 1983 1 URS tia as eine rn None nyanh th YON) es FEB 1963 | 3 4 HAR 1983 bb ice nami LE AOA ERENT 7 3 APR 1903 " MAY 1983 JUN 1983 AUG 1963 SEP 1983 OCT 1983 NOV 1983 DEC 1983 123 45 6 7 8 O 1011 12 13 14 15 16 17 16 19 2 2i 22 a4 SB 7 8 OS DAY OBSERVED TIDE HEIGHTS AT FRF PIER END Figure F3. Tide level record, 1983 0 69 o 9 a) hetome aban shetomnm NON poeta ey Mammy WLOR ty MHOR—NW Wor F4 TIDE HEIGHT ABOVE NGVD, m JAN 1984 FEB 1964 MAR 1984 APR 1984 (SA Sa aad ole hae in abs tee as JUN 1984 [SS i dete one S eB [Cea el llama a i ERC dl SEP 1984 OCT 1964 NOV 1984 DEC 1984 123 45 6 7 6 O 10151 1213 14 15 16 17 1619 D2i 22 B24 BH 28 20 SO SI DAY OBSERVED TIDE HEIGHTS AT FRF PIER END Figure F4. Tide level record, 1984 6 0 ( rotons thetane mtonn bla R nt WORN MOM MOR Uw WHORN MLO—N MLO—M WLORA rome F5 ele (atl ie yhiep haa mt perp ddl a 16 | il) : f NO rate Ut Hest miele dl iy ss eH } oh aan!