Technical Report CHL-98-14 US Army Corps of Engineers Waterways Experiment Station Annual Data Summary for 1995 CHL Field Research Facility Volume Il: Appendixes C Through E by Michael W. Leffler, Clifford F. Baron, Brian L. Scarborough, Paul R. Hodges, C. Ray Townsend Approved For Public Release; Distribution Is Unlimited Prepared for Headquarters, U.S. Army Corps of Engineers 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. The findings of this report are not to be construed as an official Department of the Army position, unless so desig- nated by other authorized documents. ER) rane ON RECYCLED PAPER MBL/WHOI AA Technical Report CHL-98-14 May 1998 Annual Data Summary for 1995 CHL Field Research Facility Volume Il: Appendixes C Through E by Michael W. Leffler, Clifford F. Baron, Brian L. Scarborough, Paul R. Hodges, C. Ray Townsend U.S. Army Corps of Engineers Waterways Experiment Station 3909 Halls Ferry Road Vicksburg, MS 39180-6199 0 0301 O034bee 7? Final report Approved for public release; distribution is unlimited Prepared for U.S. Army Corps of Engineers Washington, DC 20314-1000 van US Army Corps of Engineers Waterways Experiment Station FOR INFORMATION CONTACT: PUBLIC AFFAIRS OFFICE U.S. ARMY ENGINEER WATERWAYS EXPERIMENT STATION 3909 HALLS FERRY ROAD VICKSBURG, MISSISSIPPI 39180-6199 PHONE: (601) 634-2502 AREA OF RESERVATION : 2.7 sa im Waterways Experiment Station Cataloging-in-Publication Data Annual data summary for 1995 : CHL Field Research Facility / by Michael W. Leffler ... [et al.] ; prepared for U.S. Army Corps of Engineers. 2 v. : ill. ; 28 cm. — (Technical report ; CHL-98-14) Includes bibliographic references. v. 1. Main text and appendixes A and B—v. 2. Appendixes C through E. 1. Ocean waves — North Carolina — Duck — Statistics. 2. Water waves — North Carolina — Duck — Statistics. 3. Oceanographic research stations — North Carolina — Duck —Statistics. 4. Oceanography — North Carolina — Duck — Statistics. |. Leffler, Michael W. Il. United States. Army. Corps of Engineers. Ill. U.S. Army Engineer Waterways Experiment Station. IV. Coastal and Hydraulics Laboratory (U.S. Army Engineer Waterways Experiment Station) V. Title: CHL Field Research Facility annual data summary for 1995. VI. Series: Technical report (U.S. Army Engineer Waterways Experiment Station) ; CHL-98-14. TA7 W34 no.CHL-98-14 Appendix C Wave Data for Gauge 111 Wave data summaries for Gauge 111 for 1995 and for 1980 through 1995 are presented in the following pages. Substituted for Gauge 111 was data from 640 for 1985 and 1986. Also used was data from Gauge 141 from 1987 and Gauge 511 from Jan-Aug 1993. In 1997 data from Gauge 121 was used from Sept-Dec. Daily 1, and 7, Figure C1 displays the individual wave height H,,, and peak spectral wave period 7, values, along with the monthly mean values. Joint Distributions of H/,,, and 7, Annual and monthly joint distribution tables are presented in Tables C1 and C2, and data for 1980 through 1995 are in Tables C3 and C4. Each table gives the frequency (in parts per 10,000) for which the wave height and peak period were within the specified intervals; these values can be converted to percentages by dividing by 100. Marginal totals are also included. The row total gives the number of observations out of 10,000 that fell within each speci- fied peak period interval. The column total gives the number of observations out of 10,000 that fell within each specified wave height interval. Cumulative Distributions of Wave Height Annual and monthly wave height distributions for 1995 are plotted in cu- mulative form in Figures C2 and C3. Data for 1980 through 1995 are plotted in Figure C4. Appendix C Wave Data for Gauge 111 C1 Peak Spectral Wave Period Distributions Annual and monthly peak wave period 7, distribution histograms for 1995 are presented in Figures C5 and C6. Data for 1980 through 1995 are presented in Figure C7. Persistence of Wave Heights Table C5 shows the number of times in 1995 when the specified wave height was equaled or exceeded at least once during each day for the duration (consecutive days). Data for 1980 through 1995 are averaged and given in Ta- ble C6. An example is shown below: Height Consecutive Day(s) or Longer 10 11 12 13 14 15 16 17 18 19+ 3 24 21 18 14 0.5 1.0 1.5 2.0 225 3.0 3.5 4.0 This example indicates that wave heights equaled or exceeded 1.0 m 50 times for at least 1 day; 34 times for at least 2 days; 24 times for at least 3 days, etc. Therefore, on 16 occasions the height equaled or exceeded 1.0 m for 1 day exactly (50 - 34 = 16); on 10 occasions for 2 days; on 3 occasions for 3 days, etc. Note that the height exceeded 1 m 50 times for 1 day or lon- ger, while heights exceeded 0.5 m only 18 times for this same duration. This change in durations occurred because the longer durations of lower waves may be interspersed with shorter, but more frequent, intervals of higher waves. For example, one of the times that the wave heights exceeded 0.5 m for 16 days may have represented three times the height exceeded 1 m for shorter durations. Spectra Monthly spectra for the pressure gauge (Gauge 111) are presented in Fig- ure C8. The plots show "relative" energy density as a function of wave fre- quency. These figures summarize the large number of spectra for each month. C2 Appendix C Wave Data for Gauge 111 The figures emphasize the higher energy density associated with storms, as well as the general shifts in energy density to different frequencies. As used here, "relative" indicates the spectra have been smoothed by the three-dimen- sional surface drawing routine. Consequently, extremely high- and low-energy density values are modified to produce a smooth surface. The figures are not intended for quantitative measurements; however, they do provide the energy density as a function of frequency relative to the other spectra for the month. Monthly and annual wave statistics for Gauge 111 for 1995 and for 1980 through 1995 are presented in Table C7. Figure C9 plots monthly time-histories of wave height and period. Appendix C Wave Data for Gauge 111 €3 C4 Wave Height, m Wave Period, sec Figure C1 ie Sear Spey ieee SE 5 * 3 os JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC Month Year Mean, sec — 1995 8.9 Mn Sal ip hin Pte anita an Te > TET Ia el == ae JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC Month . 1995 daily wave height and period values with monthly means for Gauge 111 Appendix C Wave Data for Gauge 111 Table C1 Annual Joint Distribution of H,,, versus 7, Annual 1995, Gauge 111 Percent Occurrence (X100) of Height and Period Height (m) Period (sec) 10.0- 12.0- 14.0- 11.9 607 338 76 QO. 0 0. 0 1. 1 1. 1 2. 2 76 2 Do 3 Bo 3 4. 4 4. 4 5. 497 1090 Appendix C Wave Data for Gauge 111 16.0- C5 C6 Table C2 Monthly Joint Distribution of H,,, versus 7, January 1995, Gauge 111 Percent Occurrence (X100) of Height and Period Height (m) Period (sec) 10.0- 12.0- 14.0- 16.0- Stab ok): _slt}&) 732 325 81 81 UP PWWNNHHOO PPWWNYNPPOO February 1995, Gauge 111 Percent Occurrence (X100) of Height and Period Height (m) Period (sec) 10.0- 12.0- 14.0- 16.0- mabe’) ale} 50) 9 7 179 536 536 - 89 89 446 : : 0 89 PBWWNNRPRPOO oO. 0. 1. abs An 2. Sie By 4. 4. s. 625 1071 March 1995, Gauge 111 Percent Occurrence (X100) of Height and Period Height (m) Period (sec) 10.0- 12.0- 14.0- 16.0- BULGE) alta fs) UP PWWNNrFPRPOO PPWWNNPP OO (Continued) Appendix C Wave Data for Gauge 111 (Sheet 1 of 4) Table C2 (Continued) April 1995, Gauge 111 Percent Occurrence (X100) of Height and Period Height (m) Period(sec) 10.0- 12.0- 14.0- 16.0- 11.9 13.9 15.9 _Longer -49 6 . 83 417 83 333 83 -99 cS 917 417 333 417 750 49 : 0 250 83 : E -99 oO 5 49 09) -49 -99 -00 -50 -00 -50 -00 -50 -00 -50 -00 49 -50 oe) -00 - Greater : : : 2 : : Total 500 1083 UPRWWNNPHPOO PPRWWNNHEHOO May 1995, Gauge 111 Percent Occurrence (X100) of Height and Period Height (m) Period (sec) 10.0- 12.0- 14.0- 16.0- 11.9 13.9 _15.9 _Longer 49 3 : 3 : 403 -99 - 323 161 1210 49 - E 242 242 81 81 99 : : 0 0 0 0 - 49 -99 -49 -99 -00 -50 -00 -50 .00 -50 -00 -50 -00 49 -50 -99 -00 - Greater o O 7 o 5 . > : 0 Total 726 242 1694 PPWWNNPRP OO ie) to) 1 1 2 2 3 3 4 4 5 June 1995, Gauge 111 Percent Occurrence (X100) of Height and Period Height (m) Period(sec) 10.0- 12.0- 14.0- 16.0- slat oS) abe oG) ss AUS AO) tests pe 336 1008 1849 1008 1261 336 420 84 420 UP PWWNNPP OO PPWWNNHPOO 420 1344 2605 1344 1765 (Continued) (Sheet 2 of 4) Appendix C Wave Data for Gauge 111 Table C2 (Continued) July 1995, Gauge 111 Percent Occurrence (X100) of Height and Period Height (m) Period(sec) HO 5OS stoO— aloo a SsG@)c stat ok) atsef) 167 667 167 583 2417 83 250 583 333 333 583 1000 1667 83 83 6 - : -00 -50 -00 -50 -00 -50 -00 -50 -00 -50 -00 Greater . . . . : . . . 5 ° Total 666 s00 1000 750 1583 4084 166 UP RWW NNPRP OO PPWWNNRPHOO August 1995, Gauge 111 Percent Occurrence (X100) of Height and Period Height (m) Period(sec) 10.0- 12.0- 14.0- 16.0- slab oe) —alzya£) 81 81 242 323 oO. 0 QO. te) abo 1 1. 1 2ie 2 2. 2 3. 3 Bo 3 4. 4 4. 4 S. September 1995, Gauge 111 Percent Occurrence (X100) of Height and Period Height (m) Period(sec) 10.0- 12.0- 14.0- 16.0- alatok) _alz}a6) 167 1167 83 250 1083 1083 UP PWWNNRPrF OO PPWWNNRPP OO 1584 2250 1166 (Continued) (Sheet 3 of 4) Appendix C Wave Data for Gauge 111 Table C2 (Concluded) October 1995, Gauge 111 Percent Occurrence (X100) of Height and Period Height (m) Period(sec) 10.0- 12.0- 14.0- 16.0- alata) _ sitll) 726 1613 1048 726 0 161 968 81 . : : 81 UP RPWWNNPRP OO PPWWNNPRP OO 322 1291 968 1774 2178 S65 1371 November 1995, Gauge 111 Percent Occurrence (X100) of Height and Period Height (m) Period(sec) 10.0- 12.0- 14.0- 16.0- 11.9 13.9 _15.9 _Longer QO. 0 0. (0) ale al tbo 1 Be 2 Bo 2 3. 3 Bio 3 4. 4 4. 4 Ske December 1995, Gauge 111 Percent Occurrence (X100) of Height and Period Height (m) Period(sec) 10.0- 12.0- 14.0- 16.0- 11.9 13.9 161 161 161 s6s 161 242 403 81 81 UP PWWNNPP OO PPWWNNeH POO (Sheet 4 of 4) Appendix C Wave Data for Gauge 111 Table C3 Annual Joint Distribution of H,,, versus 7, (All Years) Annual 1985-1995, Gauge 111 Percent Occurrence (X100) of Height and Period Height (m) Period(sec) 10.0- 12.0- 14.0- 16.0- sts) atz}oG) ata) Longer 16 16 1 1 1 PPRWWNYNHHOO QO. QO. 1. 1. Ao Ze Bo Sh 4. 4. Sr eve Appendix C Wave Data for Gauge 111 Table C4 Monthly Joint Distribution of H,,, versus 7, (All Years) Height (m) UP PRWWNNHHOO PPWWNNKHOO Height (m) 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 5.00 - Greater Total Height (m) PWWNNP POO UP PWWNNP PR Appendix C Wave Data for Gauge 111 January 1985-1995, Gauge 111 Percent Occurrence (X100) of Height and Period Period (sec) 10.0- 14.0- 16.0- 11.9 12.0- 13.9 45 15 February 1985-1995, Gauge 111 Percent Occurrence (X100) of Height and Period Period(sec) 10.0- 12.0- 16.0- 11.9 14.0- 17 17 1985-1995, Gauge 111 of Height and Period March Percent Occurrence (X100) Period (sec) 14.0- 10.0- 12.0- 16.0- 11.9 13.9 (Continued) (Sheet 1 of 4) C11 Gi2 Table C4 (Continued) Height (m) UP PWWNNRPP OO -00 -50 -00 -50 -00 -50 -00 -50 -00 -50 -00 PP WWNNP HOO - Greater Total Height (m) 0 te) 1 1 2 2 3 3 4 4 5 -00 -50 -00 -50 -00 -50 -00 -50 -00 -50 -00 Total PPWWNNHHOO -99 -49 -99 -49 -99 -49 -99 -49 -99 - Greater Height (m) UP PWWNNPPOO PWWNNPPHPOO April 1985-1995, Percent Occurrence (X100) Gauge 111 Period (sec) of Height and Period 10.0- 12.0- 14.0- 16.0- 11.9 May 1985-1995, Gauge 111 of Height and Period Percent Occurrence (X100) Period (sec) alz}©) 10.0- 12.0- 14.0- 16.0- atat) June 1985-1995, Gauge 111 of Height and Period Percent Occurrence (X100) Period (sec) 13.9 15 8 10.0- 12.0- 14.0- 16.0- D9) 109 242 8 47 16 1077 1765 (Continued) alz} 5) 8 (Sheet 2 of 4) Appendix C Wave Data for Gauge 111 Table C4 (Continued) July 1985-1995, Gauge 111 Percent Occurrence (X100) of Height and Period Height (m) Period (sec) 10.0- 12.0- 14.0- 16.0- 11.9 13.9 15.9 _Longer 162 239 425 15 301 93 154 15 23 C 15 : UP PWHWNNRPPRP OO PPRWWNNPPOO August 1985-1995, Gauge 111 Percent Occurrence (X100) of Height and Period Height (m) Period (sec) 10.0- 12.0- 14.0- 16.0- slat ak) 8 55 PPWWNHNNHP POO oO. 0. aba abe 2. 2. 3. Sig 4. 4. SE September 1985-1995, Gauge 111 Percent Occurrence (X100) of Height and Period Height (m) Period(sec) 10.0- 12.0- 14.0- 16.0- UP PWWNNPP OO PPRWWNNHPHOO (Continued) (Sheet 3 of 4) Appendix C Wave Data for Gauge 111 C13 C14 Table C4 (Concluded) Height (m) Height (m) Height (m) UP BWWNNRPHOO oO. 0. abe ab 6 2. aie 3. 3. 4. 4. Sie UP PWWNNRPRP OO PPWWNNPRP OO PPWWNNPPOO PRWWNNPP OO October 1985-1995, Gauge 111 Percent Occurrence (X100) of Height and Period Period(sec) 10.0- 12.0- 14.0- 16.0- alpk&)) _ slsjo&) 15 8 November 1985-1995, Gauge 111 Percent Occurrence (X100) of Height and Period Period(sec) 10.0- 12.0- 14.0- 16.0- 11.9 62 310 8 163 O 496 December 1985-1995, Gauge 111 Percent Occurrence (X100) of Height and Period Period(sec) 10.0- 12.0- 14.0- 16.0- all 5£) 6 15.9 _Longer 119 32 16 8 492 (Sheet 4 of 4) Appendix C Wave Data for Gauge 111 = 1995 ISSS=95 10 10° 10 Percent Greater Than Indicated Figure C2. Annual cumulative wave height distributions for Gauge 111 Appendix C Wave Data for Gauge 111 C15 nan nen rer earn jones fo) J | need Ny w f- [o) ren nnn eh nen 1" 10° Percent Greater Than Indicated Figure C3. 1995 monthly wave height distributions for Gauge 111 cic Appendix C Wave Data for Gauge 111 4 4 non nn nnnnnn n nn ntn 10 | 10° 10 Percent Greater Than Indicated Figure C4. 1980-1995 monthly wave height distributions for Gauge 111 Appendix C Wave Data for Gauge 111 C17 407 2075 oH 405 dl 2074 o- 407 2074 a 405 bx oO O (e ® = he = D © oO oa 3 > S © 5 or 2 ie Gauge 625 1995 : |_ pando Gauge 630 1995 _abgodhen_ Gauge 111 1995 | _ adeno Gauge 641 ; Gauge 625 1980-95 |_oneedaen_ Gauge 630 1980-95 1 eae Gauge 111 1985-95 1. onae Gon Gauge 641 1980-95 Figure C5. Annual wave period distributions for all gauges C18 Appendix C Wave Data for Gauge 111 Jan 4 Jul Z 4 VA Ws | 226 Goede ae | eel Feb | Aug y | Olaleta av ol toce.|_-ceontal@B. Mar 1 Sep ay 1 = eee hea 405 = Apr “| Oct 2075 | FIT | ; AIA « | -abdAgoond! ..Boana al 405 5 ~ a) Se) (e ® <= — =) S) iS) © — } > 5 e ® 5 or © (ie Nov May y : Mag ee 7 iii atg are eee Figure C6. 1995 monthly wave period distributions for Gauge 111 Appendix C Wave Data for Gauge 111 C19 x oO Oo (S o = = = ) je (Se) — re) =~ Ss Ss © Sj or © fie Oo- 405 Feb Mar 4 ! y __ abel Apr |_.onealdna May Qe AS 57 8 8102 4 te Period, sec 4 | a e _ | | | ofal4in | eaeotheca. Aug AAWAG | Ap | _ 0009.01 _..cacl been. Sep __anaefaen_ -peeneee ee ee _eefeBen. Figure C7. 1980-1995 monthly wave period distributions for Gauge 111 C20 Appendix C Wave Data for Gauge 111 Table C5 1995 persistence of H/,,, for Gauge 111 Height Consecutive Day(s) or Longer (m) 1 2 3 4 5 6 7 8 9 ag alah a2 as ay ak) al A A) at) al) aS} 10 9 8 v7) 5 BY BU. ayy alah v 6 2 15 8 3 2 6 2 1 2 1 1 ououwnounouw 0. akg abs 2 2 Bo Bia 4. Table C6 1980 through 1995 persistence of H,,, for Gauge 111 Height Consecutive Day(s) or Longer 1 2 5 6 7 8 9 als al az} gs 10 Y 6 al, a 1 1 PwWwWNNDP RPO * Data from Gauge 640 from 1985 and 1986 as well as data from Gauge 141 for 1987 were used for comparison with Gauge 111. Gauge 511 used for Jan-Aug 1993. Appendix C Wave Data for Gauge 111 C21 FESZ> ae] RELATIVE ENERGY DENSITY WAVE GAug 1995 CE 111 LLL if RELATIVE ENERGY DENSITY ae enw ane LT? Saez LLL IKE Lee <4, KLEE 4 Figure C8. 1995 monthly spectra for Gauge 111 (Sheet 1 of 6) Cae Appendix C Wave Data for Gauge 111 RELATIVE ENERGY DENSITY RELATIVE ENERGY DENSITY Figure C8. (Sheet 2 of 6) Appendix C Wave Data for Gauge 111 C23 @ a LL SS S aie Wn 2 ly Qs > 6 & = a ly > aU S — ly a Ls Bos Lsss Sco as Sse SESE ASSES <2e55 x RELATIVE ENERGY DENSITY Figure C8. (Sheet 3 of 6) oe Appendix C Wave Data for Gauge 111 Jos SIT ROR RELATIVE ENERGY DENSITY RELATIVE ENERGY DENSITY Figure C8. (Sheet 4 of 6) Appendix C Wave Data for Gauge 111 C25 RELATIVE ENERGY DENSITY RELATIVE ENERGY DENSITY 4 2S oe —_ Waa 2 Figure C8. (Sheet 5 of 6) ze Appendix C Wave Data for Gauge 111 RELATIVE ENERGY DENSITY RELATIVE ENERGY DENSITY Figure C8. (Sheet 6 of 6) Appendix C Wave Data for Gauge 111 ozs S2s ge | Coohed el oa LL TTR a2 COS roe SSSsesses ZS Ss eos ag ae Reet ore 7. ? Whe C27 Table C7 Wave statistics for Gauge 111 1995 1985-1995 Height Period Height Period Std. Std. Std. Mean Dev. Number Mean Dev. Extreme Mean Dev. Number Obs . 1329 1209 1337 1295 1305 1281 1295 1280 1259 1324 1289 1260 NNPNPBPPPHENEN Nuwwowrwoowwoww PPNINNO2wWWNUP NNNWNNNNWNWW NHoOoOMPwWANINHOR PHPHPRHODOOOOrFKRRH POPOMHIWYKYHOO SoC OOOO COC COG BIIANNWhAHAINA PUP PP NW DP eb UNOOWKDAhWOAUCO 2000 OO OM OM wD OM DNHWOININWONWOAD WNNNNNNNNNNN Poo rIIuriouunsr 1 te) 1 0 10) 0) ie) abs ie QO. QO. QO. DwWWUOW PH OOOH OH oo Momo MoM om omc Mo Mo io) PH wWU ON WwW PW PH N x Oct 1991 8. 15463 °o bal eze Appendix C Wave Data for Gauge 111 13 5 7 9 1113 15 17 19 2123252729 1 3 5 7 9 1113 15 17 19 2123 25 27 29 31 Day of the Month Period, sec 0 5 Jun Dec 10 ee Fun ovnaniillpi ell ee a eS nl Sess Sn enn rr a 0 if 1 1 1 13 5 7 9 1113 15 17 19 2123252729 1 3 5 7 9 1113 15 17 19 2123 25 27 29 31 Day of the Month Figure C9. Time-histories of wave height and period for Gauge 111 Appendix C Wave Data for Gauge 111 C29 tea ate ih Afildy, ‘ ; j ‘ ; it \ Re Ms i a, my ar iMeety hy By ui! Ul " i j } 1 ; ii i hye } | ‘f iW } Mal ' : } 1 1? iF Wis ‘ vy i t tt i" f a } i) ut YA, \ sa Y r q i i 1 : ! m | D i Pre ag 1 Onna ib ' Wea aL mt ee ALaedit cone 1 path tet ats ; DAG be | ; by } i Pn [ Appendix D Wave Data for Gauge 625 Wave data summaries for Gauge 625 for 1995 and for 1980 through 1995 are presented in the following pages: Daily H,,, and 7, Figure D1 displays the individual wave height H,,, and peak spectral wave period T, values, along with the monthly mean values. Joint Distributions of H,,, and 7, Annual and monthly joint distribution tables are presented in Tables D1 and D2, and data for 1980 through 1995 are in Tables D3 and D4. Each table gives the frequency (in parts per 10,000) for which the wave height and peak period were within the specified intervals; these values can be converted to percentages by dividing by 100. Marginal totals are also included. The row total gives the number of observations out of 10,000 that fell within each speci- fied peak period interval. The column total gives the number of observations out of 10,000 that fell within each specified wave height interval. Cumulative Distributions of Wave Height Annual and monthly wave height distributions for 1995 are plotted in cu- mulative form in Figures D2 and D3. Data for 1980 through 1995 are plotted in Figure D4. Appendix D Wave Data for Gauge 625 D1 Peak Spectral Wave Period Distributions Annual and monthly peak wave period 7, distribution histograms for 1995 are presented in Figures DS and D6. Data for 1980 through 1995 are presented in Figure D7. Persistence of Wave Heights Table D5 shows the number of times in 1995 when the specified wave height was equaled or exceeded at least once during each day for the duration (consecutive days). Data for 1980 through 1995 are averaged and given in Ta- ble D6. An example is shown below: Height Consecutive Day(s) or Longer m 15 14 15 16 17 18 19+ 13) 12 24 21 18 14 12 8 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 This example indicates that wave heights equaled or exceeded 1.0 m 50 times for at least 1 day; 34 times for at least 2 days; 24 times for at least 3 days, etc. Therefore, on 16 occasions the height equaled or exceeded 1.0 m for 1 day exactly (50 - 34 = 16); on 10 occasions for 2 days; on 3 occasions for 3 days, etc. Note that the height exceeded 1 m SO times for 1 day or lon- ger, while heights exceeded 0.5 m only 18 times for this same duration. This change in durations occurred because the longer durations of lower waves may be interspersed with shorter, but more frequent, intervals of higher waves. For example, one of the times that the wave heights exceeded 0.5 m for 16 days may have represented three times the height exceeded 1 m for shorter durations. Spectra Monthly spectra for the offshore staff gauge (Gauge 625) are presented in Figure D8. The plots show "relative" energy density as a function of wave frequency. These figures summarize the large number of spectra for each Oe Appendix D Wave Data for Gauge 625 month. The figures emphasize the higher energy density associated with storms, as well as the general shifts in energy density to different frequencies. As used here, "relative" indicates the spectra have been smoothed by the three- dimensional surface drawing routine. Consequently, extremely high- and low- energy density values are modified to produce a smooth surface. The figures are not intended for quantitative measurements; however, they do provide the energy density as a function of frequency relative to the other spectra for the month. Monthly and annual wave statistics for Gauge 625 for 1995 and for 1980 through 1995 are presented in Table D7. Figure D9 plots monthly time-histories of wave height and period. Appendix D Wave Data for Gauge 625 D3 D4 Year Mean, m —« 1995 0.9 Wave Height, m JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC Month Year Mean, sec >—« 1995 3.0 Wave Period, sec JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC Month Figure D1. 1995 daily wave height and period values with monthly means for Gauge 625 Appendix D Wave Data for Gauge 625 Table D1 Annual Joint Distribution of H,,, versus 7, Annual 1995, Gauge 625 Percent Occurrence (X100) of Height and Period Height (m) Period (sec) 10.0- 12.0- 14.0- atl o&) alzto& 111 347 14 111 0. 0 oO. 0 ah 1 a6 1 2. 2 2. 2 Bo 3 3. 3 4. 4 4. 4 S. 500 Appendix D Wave Data for Gauge 625 16.0- D5 Table D2 Monthly Joint Distribution of H,,, versus 7, January 1995, Gauge 625 Percent Occurrence (X100) of Height and Period Height (m) Period (sec) 10.0- 12.0- 14.0- 16.0- 11.9 (13.9 _15.9 _Longer 325 81 UP PWWNNKHPP OO PPRWWNHNPHPOO 569 February 1995, Gauge 625 Percent Occurrence(X100) of Height and Period Height (m) Period (sec) -49 o c . 357 714 357 357 357 -99 0 714 625 89 179 -49 7 7 5 6 =99 -49 -99 -49 ok) -00 -49 -50 99 -00 - Greater . . . . . . Total 804 1071 1339 446 -00 -50 -00 -50 -00 -50 -00 -50 PPWWNNEPOO fe) ie) 1 1 2 2 3 3 4 4 5 March 1995, Gauge 625 Percent Occurrence (X100) of Height and Period Height (m) Period(sec) 10.0- 12.0- 14.0- 16.0- 11.9 13.9 UP PWWNNRPPRP OO PWWNNHFPOO 1488 (Continued) (Sheet 1 of 4) Appendix D Wave Data for Gauge 625 Table D2 (Continued) April 1995, Gauge 625 Percent Occurrence (X100) of Height and Period Height (m) Period (sec) 10.0- 12.0- 14.0- 16.0- 11.9 13.9 -00 ° 0 o ° : 250 7 167 83 -50 : 917 167 667 1083 -00 9 ° 7 167 es : -50 . o 9 6 83 -00 -50 .00 -50 -00 -50 -00 Greater : O . 0 : : 0 C Total 167 1084 1250 417 667 1250 UP PWWNNPRPOO May 1995, Gauge 625 Percent Occurrence (X100) of Height and Period Height (m) Period (sec) 10.0- 12.0- 14.0- 16.0- apt aC) abt} a6) 161 242 484 403 2419 81 81 161 323 887 0. 0 0. 0 1. 1 Sh 1 2. 2 Ae 2 Bo 3 So 3 4. 4 4. 4 5S. 726 3951 June 1995, Gauge 625 Percent Occurrence (X100) of Height and Period Height (m) Period (sec) 10.0- 12.0- 14.0- 16.0- aate®) abn ©) 714 179 268 1161 1250 1339 446 268 UP PRWWNNHPOO PWWNNPHPOO 1875 1875 1875 (Continued) (Sheet 2 of 4) Appendix D Wave Data for Gauge 625 D8 Table D2 (Continued) July 1995, Gauge 625 Percent Occurrence(X100) of Height and Period Height (m) Period(sec) 10.0- 12.0- 14.0- 16.0- alateS) _ale}.0) 81 - 81 325 732 #41301 2520 163 163 732 163 163 650 732 1220 81 UP PRWWNNRFPHRPOO PPWWNNPRP OO oooooo0o00ce 244 326 732 244 488 1382 2033 3740 244 August 1995, Gauge 625 Percent Occurrence (X100) of Height and Period Height (m) Period(sec) 10.0- 12.0- 14.0- 16.0- 11.9 15.9 _Longer 81 QO. ie) Oo. 0 abo al ako 1 Zin 2 2. 2 Bo 3 Se 3 4. 4 4. 4 She September 1995, Gauge 625 Percent Occurrence (X100) of Height and Period Height (m) Period(sec) 10.0- 12.0- 14.0- 16.0- 11.9 UP PWWNNRPPRP OO PPWWNNPRP OO 1000 1249 (Continued) (Sheet 3 of 4) Appendix D Wave Data for Gauge 625 Table D2 (Concluded) Height (m) UP PWWNYNNFPRP OO PPWWNNRP POO Height (m) 0. QO. ake 1. 240 2. Xo Bo 4. 4. S. PWWNNPHOO Height (m) -00 -50 -00 -50 -00 -50 -00 -50 -00 -50 UP PWWNNRPRP OO PPWWNNPR OO Total -49 -99 -49 -99 49 -99 -49 -99 -49 99 -00 - Greater October 1995, Gauge 625 Percent Occurrence (X100) of Height and Period Period(sec) 10.0- 12.0- 14.0- 16.0- seb aS) alzyG©) 161 323 726 2258 242 887 161 81 403 1210 645 1210 November 1995, Gauge 625 Percent Occurrence (X100) of Height and Period Period (sec) 10.0- 12.0- 14.0- 16.0- plot) si=}c&) 254 85 8s 593 December 1995, Gauge 625 Percent Occurrence (X100) of Height and Period Period(sec) 10.0- 12.0- 14.0- 16.0- atabat) alto’) 250 583 667 1833 417 333 250 500 250 : 83 334 1167 2916 583 Appendix D Wave Data for Gauge 625 (Sheet 4 of 4) D9 Table D3 Annual Joint Distribution of H,,, versus 7, (All Years) Annual 1980-1995, Gauge 625 Percent Occurrence(X100) of Height and Period Height (m) Period(sec) 10.0- 12.0- 14.0- 16.0- 11.9 oO. 0 oO. fe) abs 1 abe 1 2. 2 236 2 Br 3 3. 3 4. 4 4. 4 5. evo Appendix D Wave Data for Gauge 625 Table D4 Monthly Joint Distribution of H,,, versus 7, (All Years) Height (m) UP PWWNNHHOO PPWWNYNHEH OO Height (m) QO. QO. abo abo Bo 2. Bo Bo 4. 4. Si Height (= 00 -50 00 -50 -00 -50 -00 -50 -00 -50 UP PWWNNPPOO PPWWNNRPHP OO Total PPWWNYNDrPr OO ) -49 -99 49 -99 -49 -99 -49 -99 -49 -99 .00 - Greater January 1980-1995, Gauge 625 Percent Occurrence (X100) of Height and Period Period (sec) 10.0- 12.0- 14.0- 16.0- stake &) ale}a ©) 36 24 February 1980-1995, Gauge 625 Percent Occurrence (X100) of Height and Period Period (sec) 10.0- 12.0- 14.0- 16.0- alsk af) alt} .©) 24 6 March 1980-1995, Gauge 625 Percent Occurrence (X100) of Height and Period Period (sec) 10.0- 12.0- 14.0- 16.0- slab ak) alt} ak) 81 205 502 atal 135 281 70 5 (Continued) Appendix D Wave Data for Gauge 625 (Sheet 1 of 4) D11 Table D4 (Continued) Height (m) UP PWWNNHFHOO -00 -50 -00 -50 -00 -50 -00 -50 -00 -50 00 PPWWNNRPHP OO Total -49 -99 -49 -99 -49 -99 -49 9/9) -49 -99 Greater Height (m) Diz QO. QO. abe abe Bo 46 Ve So 4. 4. Se UP PWWNNRFPRP OO PWWNNRPRPOO Height (m) PPWWNNPP OO 277 54 April 1980-1995, Gauge 625 Percent Occurrence (X100) of Height and Period Period(sec) 10.0- 12.0- 14.0- 16.0- 11.9 : 15.9 _Longer 6 11 May 1980-1995, Gauge 625 Percent Occurrence (X100) of Height and Period Period(sec) 10.0- 12.0- 14.0- 16.0- pltok) attye®) June 1980-1995, Gauge 625 Percent Occurrence (X100) of Height and Period Period(sec) eS 10.0- 12.0- 14.0- 16.0- sah) alt} f) 12 30 6 1148 2569 1937 (Continued) (Sheet 2 of 4) Appendix D Wave Data for Gauge 625 Table D4 (Continued) July 1980-1995, Gauge 625 Percent Occurrence (X100) of Height and Period Height (m) Period(sec) 10.0- 12.0- 14.0- 16.0- alabigk) _abt}s&) 1477 352 655 204 43 12 UP PWWNNPPRP OO PPWWNNPHOO August 1980-1995, Gauge 625 Percent Occurrence (X100) of Height and Period Height (m) Period(sec) 10.0- 12.0- 14.0- 16.0- 11.9 _13.9 12 53 PWWNNHPPOO QO. O. abe Ab 6 Zo 2. 3. Bo 4. 4. So September 1980-1995, Gauge 625 Percent Occurrence (X100) of Height and Period Height (m) Period (sec) 10.0- 12.0- 14.0- 16.0- 39 6 6 6 UP PWWNNPROO PPWWNNPHOO 1076 (Continued) (Sheet 3 of 4) Appendix D Wave Data for Gauge 625 D13 Table D4 (Concluded) Height (m) UP PRWWNNPRPOO -00 -50 -00 -50 -00 -50 -00 -50 -00 -50 -00 PPWWNNPPH OO Total -49 -99 -49 -99 -49 +99 -49 -99 -49 -99 Greater Height (m) 0. 0. abe aba ao Zo 3. 3% 4. 4. SJ PWWNNFPPRPOO Height (m) D14 UP PWWNNRPPRP OO PPWWNNPRP OO October 1980-1995, Period (sec) November 1980-1995, Period (sec) December 1980-1995, Period(sec) Gauge 625 Percent Occurrence (X100) of Height and Period 10.0- 12.0- 14.0- 16.0- 11.9 15.9 _Longer 26 32 11 16 5 16 11 5 Gauge 625 Percent Occurrence (X100) of Height and Period 10.0- 12.0- 14.0- 16.0- 11.9 slztak) 50 28 6 11 Gauge 625 Percent Occurrence (X100) of Height and Period 10.0- alatal) ee eee 12.0- 14.0- 16.0- 24 95 (Sheet 4 of 4) Appendix D Wave Data for Gauge 625 [ee | CV | Om 10° 10 Percent Greater Than Indicated Figure D2. Annual cumulative wave height distributions for Gauge 625 Appendix D Wave Data for Gauge 625 D15 ef ef er | MW yw a | a ety wr | Rp | eatree re nnn naire tien io) 10 ' 10° Percent Greater Than Indicated Figure D3. 1995 monthly wave height distributions for Gauge 625 ee Appendix D Wave Data for Gauge 625 monn renin ronn I Een e Nn Ww - ifn nen nnn DS) ONS 10° 10 Percent Greater Than Indicated Figure D4. 1980-1995 monthly wave height distributions for Gauge 625 Appendix D Wave Data for Gauge 625 D17 405 5 Gauge 625 1995" || Gauge 625 1980-95 20 | : y) ] A, |__pB@andlen_|_..c0e8lGen _ Gauge 630 1995 | Gauge 630 1980-95 ofl r iy | 7 77) f |_noffgoaseo_}_.B0aB2 oo Gauge 111 1995 Gauge 111 1985-95 GY r > | _abhoadlen. ein 405 x oO O S o — he =) 3 O oO — ro) ss S S ® 5} om 2 fie Gauge 641 Gauge 641 1980-95 Figure D5. Annual wave period distributions for all gauges Pie Appendix D Wave Data for Gauge 625 + 4 7 } 3 of Feb 1 7 ] Aug 7 7) aV |_cllentoon| socal | 7 Hy __.00nleo | _..oBeaalen. | AG Vf 7] | 7 Ap | _AAKeAden_| otto tee p eae Ma on a Cenbasg aee V7 ie eee 407 BS o S) e ® Ss i, = 5 es) (e) ol e) Sy S = ® = oy S fina Figure D6. 1995 monthly wave period distributions for Gauge 625 Appendix D Wave Data for Gauge 625 D19 1 Jul | ; OM he AD | Senaoed ol | eae 405 = Feb 1 Aug 20 ae 1 Zi bs __ nolo eae oa. ie | aa on |__.naage4.0_1__.opeAaene 405 Sep Apr Oct 207 aan ay | _onanlhdead_|_nagetadog.. 407 ~~ oO oO (c o i = =) Oo oO (e) —_ 1e) > Oo ( oO = lor ® re [= May Nov 207 glalz nie We ene eas cee Figure D7. 1980-1995 monthly wave period distributions for Gauge 625 D2 e Appendix D Wave Data for Gauge 625 Table D5 1995 persistence of H,,,, for Gauge 625 Consecutive Day(s) or Longer at 2 3 4 5 6 w 8 9 ALO} aba aka} skal - ab) 8 4 3 al Table D6 1980 through 1995 persistence of H,,,, for Gauge 625 Consecutive Day(s) or Longer al) al 17 2) 3 4 5 6 7 8 9 abo) abab ati} als} abe} al alal 10 8 7 6 4 5 4 3 2 1 Appendix D Wave Data for Gauge 625 D21 RELATIVE ENERGY DENSITY RELATIVE ENERGY DENSITY Figure D8. 1995 monthly spectra for Gauge 625 (Sheet 1 of 6) 22 Appendix D Wave Data for Gauge 625 Soe SZ Sees RELATIVE ENERGY DENSITY RELATIVE ENERGY DENSITY SoSs Soa sees Lessor > RESP <—><> Sees 0.05 Figure D8. (Sheet 2 of 6) Appendix D Wave Data for Gauge 625 D23 RELATIVE ENERGY DENSITY sso oss 7 [/ SSSss ZZ SeSSe OL LI7S 2 SS rarer ooo oss Seco SS oe ui} L/\ RELATIVE ENERGY DENSITY Figure D8. (Sheet 3 of 6) een Appendix D Wave Data for Gauge 625 RELATIVE ENERGY DENSITY RELATIVE ENERGY DENSITY ==: 2 SSeS Moose L227 SSB SSS age L777 TL Ls SPOS SSS SOS Loo Figure D8. (Sheet 4 of 6) Appendix D Wave Data for Gauge 625 D25 RELATIVE ENERGY DENSITY RELATIVE ENERGY DENSITY Figure D8. (Sheet 5 of 6) D26 Appendix D Wave Data for Gauge 625 RELATIVE ENERGY DENSITY RELATIVE ENERGY DENSITY Figure D8. (Sheet 6 of 6) Appendix D Wave Data for Gauge 625 62> eSs2> oe” CSce \o< D27 Table D7 Wave statistics for Gauge 625 1995 1980-1995 Height Period Height Period Std. : Std. Mean Dev. Extreme 5 Mean Dev. Extreme WW WWW PN ww Ww Ww Ww PU UN WOW OF hb DH OWDWUNNUDOOrHF IO eoo0ooeoacaoaceaa ao Pe PW PRON WWW PM PNPNWORPPRPHNEHN WN IP WWOUU HP UD YIwuuwowrHY DW Ow PwWWONrP OH POH W NNNNWNNN WD WW YowmwWoh WOH FU W PRRRPRODOOOrFRKHRR oorON DANI @DOWWRrRR OO oooooaooo0oa0cocj$ao NNOYIU NWP UU HAHAH onmonwwowmnon ww wo wo wo worrrAIwoarhoaOwWown WWNNNNNNNNN DN POW ONIN WHINY HY 1 0 ako 0 QO. 0 ie) 1 1 0 0 te) o bal N @ 3.8 Feb 1992 8.9 Uze Appendix D Wave Data for Gauge 625 $ R79 NWR ABS 1338 7 9 WIS BW © 2292327 @ wi Day of the Month i SS7ONBE YD ABB Is o7 9) NERY WY Ae Yao Day of the Month Figure D9. Time-histories of wave height and period for Gauge 625 Appendix D Wave Data for Gauge 625 D29 thin ol ht soap Capt yt " yt Hal a 4 ral An ¥ ab Wh He iy uh Appendix E Wave Data for Gauge 641 Wave data summaries for Gauge 641 for 1995 and for 1980 through 1995 are presented in the following pages: Daily H,,, and 7, Figure E1 displays the individual wave height H,,, and peak spectral wave period T, values, along with the monthly mean values. Joint Distributions of H,,, and 7, Annual and monthly joint distribution tables are presented in Tables El and E2, and data for 1980 through 1995 are in Tables E3 and E4. Each table gives the frequency (in parts per 10,000) for which the wave height and peak period were within the specified intervals; these values can be converted to percent- ages by dividing by 100. Marginal totals are also included. The row total gives the number of observations out of 10,000 that fell within each specified peak period interval. The column total gives the number of observations out of 10,000 that fell within each specified wave height interval. Cumulative Distributions of Wave Height Annual and monthly wave height distributions for 1995 are plotted in cu- mulative form in Figures E2 and E3. Data for 1980 through 1995 are plotted in Figure E4. Appendix E Wave Data for Gauge 641 E1 Peak Spectral Wave Period Distributions Annual and monthly peak wave period T, distribution histograms for 1995 are presented in Figures ES and E6. Data for 1980 through 1995 are presented in Figure E7. Persistence of Wave Heights Table ES shows the number of times in 1995 when the specified wave height was equaled or exceeded at least once during each day for the duration (consecutive days). Data for 1980 through 1995 are averaged and given in Ta- ble E6. An example is shown below: Height Consecutive Day(s) or Longer m 10 11 12 13 14 15 16 17 18 19+ 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 This example indicates that wave heights equaled or exceeded 1.0 m 50 times for at least 1 day; 34 times for at least 2 days; 24 times for at least 3 days, etc. Therefore, on 16 occasions the height equaled or exceeded 1.0 m for 1 day exactly (50 - 34 = 16); on 10 occasions for 2 days; on 3 occasions for 3 days, etc. Note that the height exceeded 1 m 50 times for 1 day or lon- ger, while heights exceeded 0.5 m only 18 times for this same duration. This change in durations occurred because the longer durations of lower waves may be interspersed with shorter, but more frequent, intervals of higher waves. For example, one of the times that the wave heights exceeded 0.5 m for 16 days may have represented three times the height exceeded 1 m for shorter durations. Spectra Monthly spectra for the inshore pressure gauge (Gauge 641) are presented in Figure E8. The plots show "relative" energy density as a function of wave frequency. These figures summarize the large number of spectra for each a Appendix E Wave Data for Gauge 641 month. The figures emphasize the higher energy density associated with storms, as well as the general shifts in energy density to different frequencies. As used here, "relative" indicates the spectra have been smoothed by the three- dimensional surface drawing routine. Consequently, extremely high- and low- energy density values are modified to produce a smooth surface. The figures are not intended for quantitative measurements; however, they do provide the energy density as a function of frequency relative to the other spectra for the month. Monthly and annual wave statistics for Gauge 641 for 1995 and for 1980 through 1995 are presented in Table E7. Figure E9 plots monthly time-histories of wave height and period. Appendix E Wave Data for Gauge 641 E3 E4 Year Mean, m —« 1995 0.6 Wave Height, m FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC Month Year Mean, sec x— 1995 8.6 SICIC Wave Period, So a ee) ae Re a ae a a ann, La aL JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC Month Figure E1. 1995 daily wave height and period values with monthly means for Gauge 641 Appendix E Wave Data for Gauge 641 Table E1 Annual Joint Distribution of H,,, versus 7, Annual 1995, Gauge 641 Percent Occurrence (X100) of Height and Period Height (m) Period (sec) 10.0- 12.0- 14.0- 16.0- ale} &) 263 463 677 435 463 525 166 35) 283 850 346 359 352 14 7 28 28 48 83 7 QO. 0 0. 0 ako 1 1. 1 Bo 2 Zo 2 So 3 3. 3 4. 4 4. 4 S. 298 753 1555 Appendix E Wave Data for Gauge 641 Table E2 Monthly Joint Distribution of H,,, versus 7, January 1995, Gauge 641 Percent Occurrence (X100) of Height and Period Height (m) Period(sec) 10.0- 12.0- 14.0- 16.0- alah of} stt}ak) -49 o 650 813 oek) : : 163 569 -49 ° . 2 81 -99 : 49 SE) -49 -99 -00 -50 -00 -50 -00 -50 -00 -50 -00 -49 -50 -99 .00 - Greater - . . Total 813 UP PWWNNeP POO PPRWWNNPRPOO February 1995, Gauge 641 Percent Occurrence (X100) of Height and Period Height (m) Period(sec) 10.0- 12.0- 14.0- 16.0- 11.9 13.9 _15.9 _Longer 357 893 714 446 893 804 1250 89 714 268 89 1071 982 893 268 89 } : PWWNNRPrR OO ooooooo°0°09n 0. oO. abe 1. 2. 2. Bo Bi 4. 4. Se 446 1964 1696 1339 1161 893 1250 March 1995, Gauge 641 Percent Occurrence (X100) of Height and Period Height (m) Period (sec) 10.0- 12.0- 14.0- 16.0- ato) ale} o&) 345 345 603 1034 1034 345 86 172 345 86 862 259 259 172 86 86 Q : UP PWWNNHPRPP OO PPWWNNRPP OO 603 776 1120 689 776 775 1896 1293 (Continued) (Sheet 1 of 4) Appendix E Wave Data for Gauge 641 Table E2 (Continued) April 1995, Gauge 641 Percent Occurrence (X100) of Height and Period Height (m) 504 1092 .99 84 504 49 : -99 -49 -99 -49 -99 -00 ~49 -50 -99 -00 - Greater 2 2 Total 84 588 -00 -50 -00 -50 -00 -50 -00 -50 UP PWWNNPFHOO PPWWNNPHOO 1596 1345 924 2269 Period(sec) -O- 12.0- 14.0- 16.0- ate} ©) 1008 504 840 252 504 252 84 1596 756 588 420 168 840 840 May 1995, Gauge 641 Percent Occurrence (X100) of Height and Period Height (m) 484 403 -00 -50 -00 -50 -00 -50 -00 -50 -00 -50 -00 - Greater 2 ° 6 Total 887 PPWWNNHPP OO 0 0 1 al, 2 2 3 3 4 4 5 645 1048 1693 1129 806 1291 Period (sec) 10.0- 12.0- 14.0- 16.0- pleb as) lth o£) 1048 645 1452 161 81 242 161 565 161 81 1048 404 161 1613 806 1452 161 June 1995, Gauge 641 Percent Occurrence (X100) of Height and Period Height (m) 500 250 UP PWWNNRPHOO PPwWWNNPROO 750 Appendix E Wave Data for Gauge 641 750 583 83 1416 Period(sec) 10.0- 12.0- 14.0- 16.0- alates) sljo©) 917 1250 833 1083 917 500 : 167 83 : 0 - 2000 2250 1333 1000 (Continued) (Sheet 2 of 4) E7 Table E2 (Continued) July 1995, Gauge 641 Percent Occurrence (X100) of Height and Period Height (m) Period(sec) 10.0- 12.0- 14.0- 16.0- 11.9 13.9 _15.9 _Longer 976 976 732 732 #41138 1626 163 244 325 325 163 650 894 PWWNNHPRP OO UP PWWNNHHOO ooooo0o0o00 407 1220 1301 1057 895 1788 2520 163 August 1995, Gauge 641 Percent Occurrence (X100) of Height and Period Height (m) Period(sec) 10.0- 12.0- 14.0- 16.0- 13.9 15.9 _Longer 645 403 403 806 9 242 565 323 161 161 323) 1129, 2 81 81 81 161 sés QO. te) oO. ie) abi 1 ako 1 5 2 Ab 2 Bo 3 Zo 3 4. 4 4. 4 Sr 887 2500 1048 September 1995, Gauge 641 Percent Occurrence (X100) of Height and Period Height (m) Period(sec) 10.0- 12.0- 14.0- 16.0- alah ok) ale} o£) 1167 667 167 500 83 UP PWWNNPRPPRP OO PPWWNNHRHOO 750 667 1167 2084 1250 (Continued) (Sheet 3 of 4) Appendix E Wave Data for Gauge 641 Table E2 (Concluded) Height (m) 49 C : 81 161 -99 Q 323) L129, -49 0 e a 81 -99 -49 -99 49 -99 242 1048 -00 -50 -00 -50 -00 -50 -00 -50 -00 -49 -50 -99 00 Greater Total UPRWWNNHEHPOO PPRWWNNEHOO 404 1371 1290 Height (m) -49 254 254 -99 2 ° 1102 1525 .49 ps : 9 : 339 -99 3 49 -99 -49 -99 -00 49 -50 299) .00 - Greater Total -00 -50 -00 -50 -00 -50 -00 -50 PPWWNNRPPOO 0 0 1 1 2 2 3 3 4 4 5 1356 2118 October 1995, Percent Occurrence (X100) November 1995, Percent Occurrence (X100) Gauge 641 Period (sec) 10.0- 11.9 403 1048 565 887 968 565 968 81 646 1451 1452 1936 Gauge 641 Period (sec) 10.0- 11.9 1102 254 424 424 169 254 847 254 848 423 1101 1356 December 1995, Gauge 641 of Height and Period tr 0— Peto) 14.0- 16.0- 403 161 484 323 564 of Height and Period 12.0- 14.0- 16.0- abc} &) 763 85 848 1186 Percent Occurrence (X100) of Height and Period Height (m) 806 806 1532 1774 645 1452 49 : 242 -99 ° 81 49 -99 -49 -99 49 -99 -00 -50 -00 -50 -00 -50 -00 -50 -00 49 -50 -99 -00 - Greater Total Ub PRWWNNRPPOO PPWWNNPHOO 323 1612 3306 2097 Appendix E Wave Data for Gauge 641 Period (sec) 10.0- atatn®) 242 161 242 161 323 484 484 161 484 12.0- 14.0- 16.0- 161 726 (Sheet 4 of 4) ooooooo°co E9 E10 UP RWWNYNPHOO Table E3 Annual Joint Distribution of H,,, versus 7, (All Years) Height (m) PPwWWNYNPH OO 877 501 894 269 8 1672 Annual 1980-1995, Gauge 641 Percent Occurrence (X100) of Height and Period Period(sec) 10.0- 12.0- 14.0- 16.0- alah of) 83 19 6 4 Appendix E Wave Data for Gauge 641 Table E4 Monthly Joint Distribution of H,,, versus 7, (All Years) January 1980-1995, Gauge 641 Percent Occurrence (X100) of Height and Period Height (m) Period(sec) UP RWWNNHPHOO 10.0- 12.0- 14.0- 16.0- 11.9 403 460 159 488 999 11 85 482 6 PWWNNFPFOOSO 976 February 1980-1995, Gauge 641 Percent Occurrence (X100) of Height and Period Height (m) Period (sec) QO. 0. ab 1. 2. 2. So Si 4. 4. Bo 10.0- 12.0- 14.0- 16.0- 24 PWWNNPRP OO March 1980-1995, Gauge 641 Percent Occurrence (X100) of Height and Period Height (m) Period (sec) -00 -50 -00 -50 -00 -50 00 -50 -00 -50 00 UP PWWNNPPOO 0.49 5 0.99 5 1.49 -s 1.99 2.49 2.99 3.49 3.99 4.49 4.99 Greater Total (Continued) Appendix E Wave Data for Gauge 641 (Sheet 1 of 4) E11 E12 Table E4 (Continued) Height (m) UP PWWNYNNPPHP OO -00 -50 -00 -50 -00 -50 -00 -50 -00 -50 -00 PWWNNHPHOO Total -49 af) -49 -99 -49 =o) -49 38) -49 4. - Greater 99 Height (m) 0. Oo. 1. abe Zi 2. Br 3. 4. 4. Sr BP PWWNNPRr OO Height (m) UP PWWNNPRPRP OO PWWNNPR OO Percent Occurrence (X100) 372 561 33 966 Percent Occurrence (X100) 194 468 134 395 30 893 April 1980-1995, Gauge 641 Period(sec) 10.0- 11.9 of Height and Period 12.0- 14.0- 16.0- 13.9 40 6 May 1980-1995, Gauge 641 Percent Occurrence (X100) of Height and Period Period (sec) 10.0- 12.0- 14.0- 16.0- 11.9 533 844 150 17 aba) 61 17 June 1980-1995, Gauge 641 Period(sec) of Height and Period ee EEE -O- 10.0- 12.0- 14.0- 16.0- 11.9 941 795 128 1476 1286 (Continued) alt} o&) 97 18 (Sheet 2 of 4) Appendix E Wave Data for Gauge 641 Table E4 (Continued) July 1980-1995, Gauge 641 Percent Occurrence(X100) of Height and Period Height (m) Period(sec) 10.0- 12.0- 14.0- 16.0- olabok) ale} af) 1223 885 457 125 196 190 48 36 30 oO 6 Ub PWWNNFPPOO bP PWWNNPPHP OO 1419 1105 August 1980-1995, Gauge 641 Percent Occurrence (X100) of Height and Period Height (m) Period (sec) 10.0- 12.0- 14.0- 16.0- 11.9 5 15.9 _Longer 1092 952 64 226 302 23 99 17 QO. ie) QO. ie) ab 1 1. al aye 2 2. 2 3. 3 3. 3 4. 4 4. 4 S. 1341 1370 September 1980-1995, Gauge 641 Percent Occurrence (X100) of Height and Period Height (m) Period (sec) 10.0- 12.0- 14.0- 16.0- 61 24 18 6 UP PWWNNPPRPOO PBWWNNRPRFPOO 1050 (Continued) (Sheet 3 of 4) Appendix E Wave Data for Gauge 641 E13 E14 Table E4 (Concluded) Height (m) UP PWWNNPRPOO -00 -50 -00 -50 -00 -50 -00 -50 00 -50 -00 PPWWNNPPHP OO Total -49 -99 49 -99 -49 -99 -49 -99 -49 19/9) - Greater Height (m) 0 0 1 1 2 2 3 3 4 4 S UP PWWNNHPPOO -00 -50 -00 -50 -00 -50 -00 -50 -00 -50 -00 PWWNNPRPOO 4 Total PPWWNYNHH OO -49 -99 -49 -99 -49 -99 -49 -99 -49 -99 - Greater Height (m) 172 83 693 Percent 133 368 115 507 6 36 Cpatat 175 385 164 543 79 339 1007 368 1171 260 12 1811 453 1256 277 6 1992 October 1980-1995, Percent Occurrence (X100) Period(sec) November 1980-1995, Occurrence (X100) Period(sec) December 1980-1995, Percent Occurrence (X100) Period (sec) Gauge 641 of Height and Period 10.0- 12.0- 14.0- 16.0- 13.9 47 30 18 41 Gauge 641 of Height and Period 10.0- 12.0- 14.0- 16.0- athe) absat) 139 48 24 Gauge 641 of Height and Period 10.0- 12.0- 14.0- 16.0- 15.9 _Longer 181 40 11 6 (Sheet 4 of 4) Appendix E Wave Data for Gauge 641 —— 1985 ISSO=95 Om 10° 10 Percent Greater Than Indicated Figure E2. Annual cumulative wave height distributions for Gauge 641 Appendix E Wave Data for Gauge 641 E15 nen lenen om Percent Greater Than Indicated Figure E3. 1995 monthly wave height distributions for Gauge 641 Eula Appendix E Wave Data for Gauge 641 - penn N wW enn nn enn 10° 10° 10 Percent Greater Than Indicated Figure E4. 1980-1995 monthly wave height distributions for Gauge 641 Appendix E Wave Data for Gauge 641 E17 bs o Ss) = © — hs =) Ss) oO oO ome re) > S e ® =} = 2 ic 40- Gauge 625 SSS aaa Gauge 625 1980-95 2074 iY | ail | _pfGnahdeo_|_.naelelon 405 Gauge 630 1995 Gauge 630 1980-95 See 2iCicicicicie 2121212112 ee 4075 Gauge 111 1995 Gauge 111 1985-95 al 7 Acar | _abhaadlen ieee Gauge 641 Gauge 641 1980-95 4 WA WOW 8 910 12 14 16 Figure E5. Annual wave period distributions for all gauges E18 Appendix E Wave Data for Gauge 641 20- 405 x oy © S ® = — = ) } © — io) ~ S e © 5) oy u ir Feb |__ Hated oe. Mar \sadeedae. | a | TAKAY Ge ee May Jul ees ae 7 ee ae ae, er, ee 5 Aug = AG eee 1 Sep Ay res OC. Oct VAP WA Z | ea ee. ne | ey (Se aeeeee ae Figure E6. 1995 monthly wave period distributions for Gauge 641 Appendix E Wave Data for Gauge 641 E19 | y ) eee eee |_alooodeo_ |e 4gecusn2 Apr 20-4 i v cS) S o) = = =) re) se) (e) — e) > S) iS ® S} on 2 ine 405 May 2075 | 284 go8eboe_ J _2a4gooZon_! Jul |_ oagotldane Aug |_.BAboBeeag_ | Sep |_.o4agenod Oct __olGendon ae | Y 1_a0Bacefoo. Figure E7. 1980-1995 monthly wave period distributions for Gauge 641 E20 Appendix E Wave Data for Gauge 641 Table E5 1995 persistence of #H/,,, for Gauge 641 Height Consecutive Day(s) or Longer (m) 1 2 3 4 5 6 v 8 9 aL) alae ass a GS LY aL) OS QO. B9° Gs sah AG 10 v 4 3 2 al 23 9 4 3 3 5 0} 5 -0 -5 te) 5 0 Table E6 1980 through 1995 persistence of H,,, for Gauge 641 Consecutive Day(s) or Longer 1 2 3 4 5 6 7 8 9 a) ah aa as a8 85 26 2y abal glo) i 6 5 4 1980-1992 data from gauge 645 Appendix E Wave Data for Gauge 641 E21 RELATIVE ENERGY DENSITY RELATIVE ENERGY DENSITY Figure E8. 1995 monthly spectra for Gauge 641 (Sheet 1 of 6) ae Appendix E Wave Data for Gauge 641 RELATIVE ENERGY DENSITY RELATIVE ENERGY DENSITY Figure E8. (Sheet 2 of 6) Appendix E Wave Data for Gauge 641 E23 RELATIVE ENERGY DENSITY Lez RELATIVE ENERGY DENSITY \) \ y y ‘ SSeS S<2 SCOP See LOFTS Figure E8. (Sheet 3 of 6) Ee Appendix E Wave Data for Gauge 641 RELATIVE ENERGY DENSITY RELATIVE ENERGY DENSITY Figure E8. (Sheet 4 of 6) Appendix E Wave Data for Gauge 641 E25 z