TECHNICAL REPORT CERC tlflhliei~fllllltllllliiilll

Transcription

1 TECHNICAL REPORT CERC-91-9 Umy ANNUAL DATA SUMMARY FOR 1989 f ECERC FIELD RESEARCH FACILITY AD-A Volume 1 tlflhliei~fllllltllllliiilll APPENDIXES C THROUGH E I VW by Michael W. Leffler, Clifford F. Baron, Brian L. Scarborough Kent K. Hathaway, Ralph T. Hayes Coastal Engineerirg Research Center DEPARTMENT OF THE ARMY Waterways Experiment Station, Corps of Engineers 399 Halls Ferry Road, Vicksburg, Mississippi DTIC ftelect[ -:. a August 1991 Final Report Approved For Public Release; Distribution Unlimited Prepared for DEPARTMENT OF THE ARMY US Army Corps of Engineers -- Washington, DC Under FRF Analysis Work Unit

2 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.

3 APPENDIX C: WAVE DATA FOR GAGE Wave data summaries for Gage 111 are presented for 1989 and for 1985 through 1989 in the following forms: Daily Hmo and TP 2. Figure Cl displays the individual wave height and peak spectral wave period values along with the monthly mean values. Joint Distributions of H. and Tp 3. Annual and monthly joint distributions tables are presented in Tables Cl and C2, and data for 1985 through 1989 are in Tables C3 and C4. Each table gives the frequency (in parts per 1,) for which the wave height and peak period were within the specified intervals; these values can be converted to percentages by dividing by 1. Marginal totals are also included. The row total gives the total number of observations out of 1, that fell within each specified peak period interval. The column total gives the number of observations out of 1, that fell within each specified wave height interval. Cumulative Distributions of Wave Height 4. Annual and monthly wave height distributions for 1989 are plotted in cumulative form in Figures C2 and C3. Data for 1985 through 1989 are in Figure C4. Peak Spectral Wave Period Distributions 5. Annual and monthly peak wave period, TP, distribution histograms for 1989 are presented in Figures C5 and C6. in Figure C7. Data for 1985 through 1989 are Cl

4 Persistence of Wave Heights 6. Table C5 shows the number of times in when the specified wave height was qualed or exceeded at least once during each day for the duration (consecutive -days). Data for 1985 through 1989 are given in Table C6. An example is shown below: Height Consecutive Day(s)-or Longer - M This example indicates that wave heights equaled or exceeded 1. m 5 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. m for 1 day exactly (5-34 = 16); on 1 occasions for 2 days; on 3 occasions for 3 days, etc. Note that the height exceeded 1 m 5 times for 1 day or longer, while heights exceeded.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.5 m for 16 days may have represented 3 times the height exceeded 1 m for shorter durations. Spectra 7. Monthly spectra for the offshore Waverider buoy (Gage 111) are presented in Figure C8. The plots show "relative" energy density as a function of wave frequency. These figures summarize the large number of spectra for each 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-dimension surface drawing routine. Consequently, extremely high- and lpw-qnergy density values are modified to produce a smooth C2

5 surface. The figures are not intended for quantitative measurements; howev. er, they do provide the energy density as a function of frequency relative to t :e other spectra for the month. 8. Monthly and annual wave statistics for Gage Ill for 1989 and for 1985 through 1989 are presented in Table C7. 9. Figure C9 plots monthly time-histories of wave height and period. NTIS GRAGI DTIC TAB Q Unannounced 3 Justification By Distributi.on/ Availability Codes Avail and/or Dist Speolal

6 5.-*~18 Year Mean,-m 1. E 4.-s 4-; C : r JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC Month Mean, sec 2.-Year 2. x~ JAN FEB MAR APR MAY 'JUN JUL -AUG SEP OCT 'NOV DEC- Month Figure Cl daily wave height and period values with monthly means for Gage 1l1 C4

7 Table Cl Annual Joint-Distribution of H, versus Tp Annual 1989 Gage 111 Pei-cent Occurrence(XlOO of Height and Period Height. m _ U 6.9 7, J., 2 J._ Longer Total ' ; & - Greater Total i 134i i C5

8 Table C2 Monthly Joint Distribution of H. versus Tp January 1989, Gage 111 Percent Occurrence(XI) of Height and Period Period, sec Height. m 2, & J.g. J2 longer Total Greater Total February Gage 111 Percent Occurrence(X1) of Height and Period Period, sec Heioht. m ,9 5. U J.3A 5.9_ A Greater Total i i Total March 1989, Gage III Percent Occurrence(X) of Height and Period Heighl, n _2 -U.2 J5,2 Longer i U Greater Total i 4& (Continued) (Sheet I of 4) C6

9 Table C2 (Continued) April Gage III Percent Occurrence(X1) of Height and Period Heioht. m M 9.9 -!.2 -D.9 J Longer Total Greater Total Hay 1989, Gage III Percent Occurrence(XL) of Height and Period Heicht. m _U L.ong5.r Total Greater Total i 9i 9o 198i 18i June Gage 111 Percent Occurrence(X) of Height and Period Heiaht. m _ U M 9 9 U,2 -L.. -Lo.9n_.r Total Greater Total (Continued) (Sheet 2 of 4) C7

10 Table C2 (Continued) July Gage III Percent Occurrence(X1) of Height and Period Pericd. sec Height. m U osr gu Total - Greater August Gage 111 Percent Occurrence(XO) of Height and Period Period, sec Heioht. m.- _ _-T Longer oral i Greater Total September 1989 Cage 111 Percent Occurrence(X1) of Height and Period Heiaht. m L -29.LL Longer Total Greater Total (Continued) (Sheet 3 of 4) C8

11 Table C2 (Concluded) October Gage 111 Percent Occurrence(X1) of Height and Period Period, sec Height, m L _.L 7.9 _ JjL Longer Total i 4 48i Greater Total i 137i Percent Occurrence(X1) Novem ber Gage 111 of Height and Period Height. n JI.9 -UM Lo er Tota Greater rotal Dece ber Gage I1l Percent Occurrence(XIO) of Height and Period Feight. m -2, U j.i.9 _.M Jj _ Longer oal Greater Total (Sheet 4 of 4) C9

12 Table C3 Annual Joint Distribution of H. versus T. (All Years) Percent Occurrence(X1) Annual Gage III Period, sec of Height and Period Heiaht. n g L2 7.._.L U -. 2 I L. l. U Total Greater Total i CIO

13 Table C4 Monthly Joint Distribution of Hmo versus Tp (All Years) January , Gage 111 Percent Occurrence(X1) of Height and Period HigtL..m _ Lnger I l Greater Total i February , Gage 111 Percent OccurrencelX1) of Height and Period Height, m U, Longer Ttl Greater Total i Hatch 1985-t989, Gage 111 Percent Occurrence(XlOO) of ieight and Period HeJight. m g ial Greater Total i (Continued) (Sheet I of 4) 11

14 Table C4 (Continued) April , Gage III Percent Occurrence(X1) of Height and Period Height. m II.9 -Ua1..2 Longer Total Greater Total May , Gage 111 Percent OccurrenceTX) of Height and Period Period sec Hight. in _UL -3-a 5 Longer Toa Greater Total i June , Gae 111 Percent Occurrence(X1) of Height and Period Height. M_ , I5. Longer Total Greater Total (Continued) (Sheet 2 of 4) C12

15 Table C4 (Continued) July , Gage 111 Percent OccurrenceIX1) of Height and Period Height, m 2.9 U J J5~ J.Lnger Totl Greater Total August , Gage III Percent Occurrence(X1) of Height and Period Height. m L Longer Tt Greater Total September Gage 111 Percent Occurrence(X1) of Height and Period Period, sec Height. m U_.. 'JU Longer Greater Total i Total (Continued) (Sheet 3 of 4) C13

16 Table C4 (Concluded) October , Gage 111 Percent Occurrence(X1) of Height and Period Height, m a U _-.a _--, L 12.- J 2-1,2Loge Total Greater Total November , Gage 111 Percent Occurrence(X1) of Height and Period Period, sec Height. m 2.9.a U...I1, -. U J5S Greater Total i 138i i Total December , Gage 111 Percent Occurrence(X1) of Height and Period : Height. mt a -1-, Longer Total Greater Total (Sheet 4 of 4) C14

17 E C-2 -C1 d d Percent Greater Than Indicated Figure 2. Annual cumulative wave height distributions for Gage 111 C15

18 Month -Jan 4.. Feb... Mar -Apr Jul u --Aug 4- f... Nov ~ -- Dec 2- I- Percent Greater Than Indicated Figure monthly wave height distributions for Gage

19 5i S 4-.. Month -Jan r. F...eb... Mar "-,.. -- Ape 2- )2<-... E - Month - May 4 Jun... Jul -- Aug -- Z: 2. 4". Month Sep , Oct... Nov 3 "----. \ -Dec - 2Se N Oct 3. """"".:"."."" I2-111 CFi id' Percent Greater Than Indicated Figure C d monthly wave height distributions for Gage 11 17

20 4oj Gage Gage Gage ,, '=' * I ] Gage Gage Gage Gage Period, sec Period, sec Figure C5. Annual wave period distributions for all gages 18

21 4-4-- ] Jan 4-=V7 Feb o- 2J Jul Aug - Mar ] Sep c 2 71 o>.a p r O ct ! 4- '. J M a y N o v 1 F Jun Dec 2 4 ' Period, sec Period, sec ilgure monthly wave period distributions for Gage 111 C19

22 4] Jan Jul 7 : Feb Aug 2-~ - Mar So, Cmp , Jun Dec, Period, sec Pcriod, sec Figure C monthly wave period distributions for Gage 111 C2

23 Table C Persistence of Hm. for Gage 111 Height Consecutive Days) or Longer (m) Table C Through 1989 Persistence of H.. for Gage 111 Height (m) Consecutive Day(s) or Longer , *-Data from gage 64 from 1985 and 1986 as well as data from gage 141 for 1987 was used for conparison with gage 111. C21

24 .5wc ~ QUEN 4z..3 5 Figur 199mntlApcafr WAVE GE 11 C225

25 J5 I FiueNC8. (Shee 2of35 22

26 Cr, - FREQ.2.2 :3 13- lckuec8 Set f6 -C.

27 - QREUENcy UL FQUENCy, H Figure 8. (Sheet 4 of 6) C25

28 - - 2

29 taj F EQUE -25 Figur 8. (See.6of6 2

30 Table C7 Wave Statistics for Gage Height Period Height Period sta. Std. sta. -Std, Mean Dev. Extreme Mean Dev. Number Mean Dev. Extreme Mean Dev. Number Month m m m Date sec sec Obs. m m m Date sec sec Obs. Jan Feb Mar Apr May Jun Jul Aug Sep C Oct Nov Dec Annual Dec Apr C28

31 2Jan Jul 2 Feb Aug for Oct11 2-2

32 APPENDIX D: WAVE DATA FOR GAGE Wave data summaries for Gage 625 are presented for 1989 and for 198 through 1989 in the following forms: Daily Hmo and TP 2. Figure Dl displays the individual wave height and peak spectral wave period values along with the monthly mean values. Joint Distributions of Hmo and TP 3. Annual and monthly joint distributions tables are presented in Tables D1 and D2, and data for 198 through 1989 are in Tables D3 and D4. Each table gives the frequency (in parts per 1,) for which the wave height and peak period were within the specified intervals; these values can be converted to percentages by dividing by 1. Marginal totals are also included. The row total gives the total number of observations out of 1, that fell within each specified peak period interval. The column total gives the number of observations out of 1, that fell within each specified wave height interval. Cumulative Distributions of Wave-Height 4. Annual and monthly wave height distributions for 1989 are plotted in cumulative form in Figures D2 and D3. Data for 198 through 1989 are in Figure D4. Peak Spectral Wave Period Distributions 5. Annual and monthly peak wave period, Tp, distribution histograms for 1989 are presented in Figures D5 and D6. Data for 198 through 1989 are in Figure D7. DI

33 Persistence of Wave Heights 6. Table D5 shows the number of times in 1989 when the specified wave height was equaled or exceeded at least once -during each day for the duration (consecutive days). Data for 198 through 1989 are given in Table D6. An example is shown below: Height Consecutive Day(s) or Longer m This example indicates that wave heights equaled or exceeded 1. m 5 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. m for 1 day exactly (5-34 = 16); on 1 occasions for 2 days; on 3 occasions for 3 days, etc. Note that the height exceeded 1 m 5Qtimes for 1 day or longer, while heights exceeded.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.5 m for 16 days may have represented 3 times the height exceeded 1 m for shorter durations. Spectra 7. Monthly spectra for the offshore Waverider buoy (Gage 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 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'dimension surface drawing routine. Consequently, extremely high- and low-energy density values are-modified to produce & smooth D2

34 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. 8. Monthly and annual wave statistics for Gage (25 for 1989 and for 198 through 1989 are presented in Table D7. 9. Figure D9 plots monthly time-histories of wave height and period. D3

35 E Year Mean, m c 3.' 2.' 2...*. *... :.. :., ;....'.s s" ". *. " : x..t,*. 1.- ' ' ' JAN FEB MAR APR MAY JUN JUL AGSPOTNOV DEC ~Month Year Mean, sec ,, *-- JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC Month Figure DI daily wave height and period values with monthly means -for Gage 625 D4

36 Table Dl Annual Joint Distribution of HL versus Tp Annual 1983 Gage 625 Percent Occurrence(X1O) of Height and Period Height. m L, L5._ -onger Tal Greater Total i D5

37 Table D2 Monthly Joint Distribution of H, versus Tp January 1989, Gage 625 Percent Occurrence(X1O) of Height-and Period Height, in,9 _.9 _4_ g9 g 9911.gI.91SgLoger ota Gage Inoperative Greater Total - February 1989, Gage 625 Percent Occurrence(XI} of Height and Period Height,.m LL U 5, 9_LU _nggr Greater Total i Total March 1989, Gage 625 Percent Occurrence(X1) or Height and Period Height. m L9 J9 19.LgnQ Longer i 8i ; Greater Total (Continued) (Sheet I of 4) D6

38 Table D2 (Continued) April 1989, Gage 625 Percent Occurrence(X1) of Height and Period Height. m U.9 _U.2 _U.2 Lngerhu Greater Total May 1989, Gage 625 Percent Occurrence(X ) of Height and Period Hei ght,. m M -2, U, Lnger Total i 8i Greater Total June Gage 625 Percent Occurrence(X1) of Height and Period Hegh.m 2.- 2_ _9_U.2 Z tlj L,9 T Z Greater Total (Continued) (Sheet 2 of 4) D7

39 Table D2 (Continued) July 1989, Gage 625 Percent Occurrence(X1) of Height and Period Height. m-3 _ L1 a5. Th2 Longer Greater Total i August 1989, Gage 625 Percent Occurrence(X1) of Ieight -and Period Period, sec Height. m _29-3, U I onger i 33i Greater Total l September 1989, Gage 625 Percent Occurrenca(X1)-of Height and Period Height. rn L _.,2.J.Lnr Iatl ! Greater Total d (Continued) (Sheet 3 of 4) D8

40 Table D2 (Concluded) October Gage 625 Percent Occurrence(XIO) of Height and Period Feight. m M ~ --.9L _ U 2 -L.U -L.9 Tanc Greater Total e i o h t. ri November 1989, Gage 625 Percent Occurrence(XlOO) oi-height and Period Period. ner _UL2..on.e..ta L Greater Total i 33j 133i r Oece ber Gage 625 Percent Occurrence(XlCO) of Height and Period Perid-d Pect...2q j.. -7.j L9- -- Mj. -U... U. -LU 1-maoer DotUl i] ni i , Greater Total 33i j 77i 333 sf-e (Sheet 4 of 4) D9

41 Table D3 Annual Joint Distribution of Hmo versus Tp (All Years) Annual , Gage 625 Percent Occurrence(XlOO) of Height and Period Period, sec Height, m JL9J _ 15.9 LoJngger ol Greater i i DlO

42 Table D4 Monthly Joint Distribution of Ho versus Tp (All Years) January , Gage 625 Percent OccurrenceiXiO) of Height and-period Height-. _ I. 9_L3, - L5.9 gnger , Greater i T1l February , Gage 625 Percent OccurrencelXl) of Height and Period Period, se igiht. m _1A Longe otal Greater i March , Gage 625 Percent Occurrence(X1) of Height and Period Height, m L2 7-9ng91l L- J a Greater Qu (Continued) (Sheet I of 4) DII

43 Table D4 (Continued) April , Gage 625 Percent Occurrence(X1) of Height and Period Heiaht. m- 2, U LU LJS 19-U , Greater i i 19 May , Gage 625 Percent OccurrenceIX1) of Height and Period Height.-m , U _L ngr Io Greater June , Gage 625 Percent Occurrence(X1) of Height and Period e.ghlm _U _-US L _ LL Lnger jO Greater i (Continued) (Sheet 2 of 4) D12

44 Table D4 (Continued) July , Gage 625 Percent Occurrence(Xl) of Height and Period _ H.ight. m _9 9.9 U.9L -5-QLonge Total Greater i 145 August , Gage 625 Percent Occurrence(X1) of Height and Period Period. see Height. m J. 9I, Longer Total Greater i September 198M1989, Gage-625 Percent Occurrence(X1) of Height and Period Period, sec Height. m 2_ M 2 _.9.LQJ _3 er Total " Greater (Continued) (Sheet 3 of 4) D13

45 Table D4 (Concluded) October , Gage 625 Percent Occurrence(XlOO) of Height and Period Period, sec Height, m -2-a II Loncier Total Greater i i 155 November , Gage 625 Percent Occurrence(X1) of Height and Period Period, sec Heighta. _ M 6.9 7U LU2 -U.2. ng Total Greater December , Gage 625 Percent Occurrence(XOO) of Height and Period Height. mj ,9 4, , ~ U-2-5L Long.eh Greater A W 6A 18i 156 (Sheet 4 of 4) D14

46 E3 -I -2) 1 C 1 1 di1cd Percent Greater Than Indicated Figure D2. Annual cumulative wave height distributions for Gage 625 D15

47 5. Month Feb... Mar... -Apr 2- - Month E Jun... Jul -May -Aug 41-- Oct... Nov... -Dec 2- -C2 C 1d d Percent Greater Than Indicated Figure D monthly wave height distributions for Gage 625 D16

48 5. Month Jan 4 Feb 3-2- * -... Jul -Aug 2 * 4' Sep Oct... Nov... -Dec dl Percent Greater Than Indicated Figure D monthly wave height distributions for Gage 625 D17

49 4- Gage Gage j 6 4- o Gage Gage >,. 4-.-ci Gage Gage I 41 Gage Gage Period, sec Period, sec Figure D5. Annual wave period distributions for all gages D18

50 41 1 Jan Jul 4- ~2-4- o2 Apr Oct 4 2 May Nov _1.- 4j 21 " Jun Dec Period, sec Period, sec Figure D monthly wave period distributions for Gage 625 D19

51 Jan Jul Feb Aug Mar Sep > Apr Oct ~ o calidn EO] _ S4-2- May Nov " Jun Dec Period, sec Period, sec Figure D monthly wave period distributions for Gage 625 D2

52 Table D Persistence of H. for Gage 625 Height Consecutive Days) or Longer (M) Table D6 198 Through 1989 Persistence of H.. for Gage 625 Height Consecutive Day(s) or Longer (M) Z D21

53 FREOuE~~.2 ~ 1~JA~ 14Z.3 (Sheet 1z of6) D22

54 Al. FgreQ D8. (Set2 f6 W5 D2(y.3oa

55 Figur D8. (Shee 3 of 6) FR.2 24

56 Fiur D83Set 1f6, D252

57 48 Figur (Set5 f6 cd26

58 WAELAE 2 Lu8 4RQUN -.o~ Q: Fiue.(he f6.1 li 15D2i

59 Table D7 Wave Statistics for Gage Height Period Height Period sta. - Td. Sta. S-td. Mean ev. Extreme Mean ev. Number Mean Bev. Extreme Mean ev. Number Month m m m Date sec sec Obs. m m m Date sec sec Obs. Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Feb Feb D 8

60 4 Jan Jul 2" 4 Feb Aug 2-" 4- E 4-. Mar Sep -._=a4... Apr Oct )2- o.:... 4D May Nov 2-4- Jun Dec Day of the Month 2- Jan Jul 2 2- Fe b Aug Mar f2o ' ' "I ; ) J / ; Sep " - o2- Apr Oct (V 1- n , Jun D...ec. Day of the Month Figure D9. Time-histories of wave height and period for Gage 625 D29

61 APPENDIX E: WAVE DATA FOR GAGE Wave data summaries for Gage 645 are presented for 1989 and for 198 through 1989 in- the following forms: Daily Hmo and T. 2. Figure El displays the individual wave height and peak spectral wave period values along with the monthly mean values. Joint Distributions of Hmo and Tp 3. Annual and monthly joint distributions tables are presented in Tables El and E2, and data for 198 through 1989 are in Tables E3 and E4. Each table gives the frequency (in parts per 1,) for which the wave height and peak period were within the specified intervals; these values can be converted to percentages by dividing by 1. Marginal totals are also included. The row total gives the total number of-observations out of 1, that fell within each specified peak period interval. The column total gives the number of observations out of 1, that fell within each specified wave height interval. Cumulative Distributions of Wave Height 4. Annual and monthly wave height distributions for 1989 are plotted in cumulative form in Figures E2 and E3. Figure E4. Data for 198 through 1989 are in Peak Spectral Wave Period Distributions 5. Annual and monthly peak wave period, TP, distribution histograms for 1989 are presented in Figures E5 and E6. in Figure E7. Data for 198 through 1989 are El

62 Persistence-of Wave Heights 6. Table E5 shows the number of times in 1989 when the specified wave height was equaled -or exceeded at least once during each day for the duration (consecutive days). Data for 198 through 1989 are given in Table E6. An example is shown below: Height Consecutive Day(s) or Longer m This example indicates that wave heights equaled or exceeded 1. m 5 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. m for 1 day exactly (5-34 = 16); on 1 occasions for 2 days; on 3 occasions for 3 days, etc. Note that the height exceeded I m 5 times for 1 day or longer, while heights exceeded.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.5 m for 16 days may have represented 3 times the height exceeded 1 m for shorter durations. Spectra 7. Monthly spectra for the offshore Waverider buoy (Gage 645) 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 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-dimension surface drawing routine. Consequently, extremely high- and low-energy density values are modified to produce a smooth E2

63 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. 8. Monthly and annual wave statistics for Gage 645 for 1989 and for 198 through 1989 are presented in Table E7. 9. Figure E9 plots monthly time-histories of wave height and period. E3

64 Year Mean, m 5.- c1989 O.-7 E -~ o JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC Month Year Mean, sec ~ ) > r.* p JAN FEB MAR APR MAY 'JUN 'JUL AUG SEP 'OCT NOV DEC Month Figure El daily wave height and period values with monthly means for Gage 645 E4

65 Table El Annual Joint Distribution of H. versus Tp Annual 1989 Gage 645 Percent Occurrence(X1O) of Height and Period Height. m U, J5..gm IQU Greater E5

66 Table E2 Monthly Joint Distribution of H.. versus T. January 1989, Gage 645 Percent Occurrence(X1) of Height and Period Height, m U.& -U2.9_ Longer Total Greater February 1989, Gage 645 Percent Occurrence(X1) of Height and Period Period. saec Height, m 2-a LLi _J._ A5Q.L.onger Greater March 1989, Gage 645 Percent Occurrence(X) of Height and Period Height. m -2.Q JI-2_LQ Loge Total Greater i (Continued) (Sheet 1 of 4) E6

67 Table E2 (Continued) April 1989, Gage 645 Percent Occurrence(XIOO) of Height and Period Height, m M 1.- U Longer Total Greater i i i 783 May 1989, Gage 645 Percent Occurrence(X1) of Height and Period Period, sec Height. m , U, Longer Total Greater June 1989 Cage 645 Percent Occurrence(XIOO) of Height and Period Height, m S U.2 L5ongTotr Greater (Continued) (Sheet 2 of 4) E7

68 Table E2 (Continued) July Gage 645 Percent Occurrence(X1) of Height and Period period. sec G Pei aht. m - _-.L L2-3-a LU -U-. Lonerta Greater 333 8a e August 1989, Gage 645 Percent Occurrence(X1) of Height and Period Ferid, sec Heiaht. n, U ] LJ.- _15- Longer Total G Z Greater Septezber 1989, Gage 645 Percent Occurrence(XIOO) of Height and Period Feight., m - 2.-, M_9 6.- L 7.- U 8.- _. 8. U 9.- U 1.- _ _= 14.- _= 16.- Longer Total ! Greater 17i (Continued) (Sheet 3 of 4) E8