STD and current meter observations in the north San Juan ...

NOAA Technical Memorandum ERL PMEL-4

STD AND CURRENT METER OBSERVATIONS

IN THE NORTH SAN JUAN ISLANDS

OCTOBER 1973

Dan E. Tracy

Pacific Marine Environmental LaboratorySeattle, WashingtonJuly 1975

UllTED STATES /DE'AIT.EIT OF COII.EICE.lllrl C... 1"", SICflll1l

NATIONAL OCEANIC ANDATMOSPHERIC ADMINISTRATIONRobert M. White. Administrator /

Environmental ResearchLaboratonesWilmot N. Hess. Director

DISCLAIJI'ER

The EnviroAMIntal Research La~orator1es does not approve.recommend. or endorse any proprietary product orproprtetarymaterial mentioned in this publ1cetfon. No reference shall be.made to the Envi~ntal Research Laboratories. or to thts·publication furnished by the Environmental Research La50ratories.in any advertising or sales promotion which would indtcateorimply that the Environmental Research Laboratories approve.recommend. or endorse any proprietary product or proprietarymaterial mentioned herein. or which has as its purpose an tntentto cause directly or indirectly the advertised product to beused or purchased because of this Environmental Research Laboratories publication.

11

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TABLE OF CONTENTS

ABSTRACT

1. INTRODUCTION

2. DATA MEASUREMENT

2.1 STD Sensor

2.2 Current Meter

2.3 Wind

3. DATA PRESENTATION

3.1 STD Data

3.2 Current Meter Data

3.3 Vector Mean Currents

4. ACKNOWLEDGMENTS

5. REFERENCES

LIST OF FIGURES

Fi gure

Page

1

1

1

1

2

2

2

2

2

4

5

5

2

3

4. 1

.2

5

6

Cruise dates and operations

Current meter stations

Current meter array

Wind--Cherry Point:Standard statistics and histogramsProgressive Vector Diagram (PVD)

<:

Data flow

Chart of working area: Meter locations,time series locations, transect locations,and mean current display

iii

6

7

8

910

11

12

LIST OF FIGURES (Continued)

Figure Page

7. 1 Transect #1, South Haro Strait,10-11 October 1973 (STll--ST16)--Temperature 13

.2 --Salinity 14

.3 --Sigma-t 15

8. 1 Transect #2, North Haro Strait,17 October 1973 (ST17--ST23) --Temperature 16

.2 --Salinity 17

.3 --Sigma-t 18

9.1 Transect #3, North Rosario Strait,18 October 1973 (ST1--ST5) --Temperature 19

.2 --Sal inity 20

.3 --Sigma-t 21

10. 1 Transect #4, South Rosario Strait,29 October 1973 (ST6--ST10) --Temperature 22

.2 --Salinity 23

.3 --Sigma-t 24

11. 1 Time Series #1, Haro Strait,23-24 October 1973 (S-3) --Temperature 25

.2 --Salinity 26

.3 --Sigma-t 27

12.1 Time Series #2, South Rosario Strait,29-30 October 1973 (S-2) --Temperature 28

.2 --Salinity 29

.3 --Sigma-t 30

13.1 Time Series #3, North Rosario Strait,30-31 October 1973 (S-l) --Temperature 31

.2 --Salinity 32

.3 --Sigma-t 33

14.1 Current Meter Station 500 (-7m):Standard statistics and histograms 34

.2 Time series 35

.3 Progressive Vector Diagram (PVD) 36

.4 Spectra 37

15. 1 Current Meter Station 500 (-20m):Standard statistics and histograms 38

.2 Spectra 39

16.1 Current Meter Station 500A (-5m):Standard statistics and histograms 40

.2 Time series 41


.4 Spectra 43iv

LIST OF FIGURES (Continued)

Figure Page

17.1 Current Meter Station 500A (-22m):Standard statistics and histograms 44

.2 Time series 45


.4 Spectra 47

18. 1 Current Meter Station 500A (-83m):Standard statistics and histograms 48

.2 Spectra 49

19. 1 Current Meter Station 48 (-5m):Standard statistics and histograms 50

.2 Time series 51


.4 Spectra 53


.2 Time series 55


.4 Spectra 57


.2 Time series 59


.4 Spectra 61


.2 Time series 63


.4 Spectra 65


.2 Time series 67


.4 Spectra 69


.2 Time series 71


.4 Spectra 73


.2 Time series 75


.4 Spectra 77

v

STD AND CURRENT METER OBSERVATIONS

IN THE NORTH SAN JUAN ISLANDS

OCTOBER 1973

Dan E. Tracy

Summaries of STD measurements and current meterdata from the north San Juan Islands during October 1973are presented as computer-generated plots and as contours of temperature, salinity, and sigma-to Some winddata have been included to aid in data interpretation.

1. INTRODUCTION

The Pacific Marine Environmental Laboratory (PMEL) conducted salinitytemperature-depth (STD) data and tidal current measurements, commencing a5-year survey to provide water circulation information. PMEL was responsible for collection and analysis of STD data aboard the NOAA ship McARTHURand for some analyses of current meter data not routinely done by theNational Ocean Survey (NOS). All STD and current meter data are to beforwarded to the National Oceanographic Data Center under the heading OPRMA-509-l973. A summary of cruise dates and operations is given in figure 1,and figure 6 shows the working area. This report is intended to providedata which may be useful to others.

2. DATA MEASUREMENT

2.1 STD Sensor

A Plessey Model 9006 STD system was used to measure temperature,salinity, and depth. The STD sensors were lowered at 30 mlmin to withina few meters of the bottom as determined by a pinger attached to the STDcage. Data were recorded in an analog format on an x1-x2-y recorder(Esterline Angus) and were also recorded in digital format at a rate of0.5 slscan on a Plessey Model 8ll4A digital data logger. Except for calibration purposes, data were recorded only during descent.

For determining STD calibrations, a Nansen bottle was placed above theSTD sensors and was tripped at a depth where the analog trace indicatednearly constant values of temperature and salinity. The bottles were allowed to soak for a period of 5 minutes. The reversing thermometers usedwere calibrated by the National Oceanographic Instrumentation Center, andsalinity was determined on a laboratory inductive salinometer (Hytech

-----------------------

Model 6220). Resulting corrections were -0.040C and +0.020/00. These

values were applied during the initial processing of the digital data.Changes in corrections during the October operations were not detected.Information pertaining to STD and current meter stations is given infigure 2.

2.2 Current Meter

Current meters used during these operations were Aanderaa meters(RCM-4) which record averages of speed and instantaneous readings of direction every 10 minutes. The current meter tapes were furnished by NOS.Location, depth (minus (-) when measured from sea surface and plus (+) whenmeasured from sea floor), and period of operation for each current meterare given in figure 2. Aanderaa current meters were deployed at 5 m belowthe surface (MLLW) and 16 m above the bottom. Deep water moorings weredeployed at 5 and 23 m below the surface (MLLW), with the bottom meter 16 mabove the bottom (see fig. 3).

2.3 W"ind

Windspeed and direction data were collected at the Cherry Point OilRefinery, near current meter station 500, during the entire period of oursurvey. These data are presented in histogram form and as a progressivevector diagram (see fig. 4.1 and 4.2).

3. DATA PRESENTATION

3.1 STD Data

The STD data were translated, edited, and corrected to provide averagevalues of temperature and salinity at l-m intervals by PMEL programs atUniversity of Washington facilities. Sigma-t was computed from the averaged temperature and salinity. These data were used for all subsequentwork. The STD data are presented as four cross-channel transe8ts and threetime-series plots. Contour intervals are nominally 0.20C, 0.2 100, and0.2 gmll for temperature, salinity, and sigma-t, respectively, but in somecases 0.1 contours are included as dashed lines to show details.

3.2 Current Meter Data

Sampl"ing of temperature, pressure, conductivity, current speed, anddirection were averaged and recorded at 10-min intervals by the Aanderaacurrent meters.

The Aanderaa magnetic tape was copied aboard the ship to a more compact form as shown in figure 5 and transcribed to a seven-track binaryformat by the CDC 6400 in Rockville, Md. This was corrected for calibration

2

and converted to engineering units; at this time, the data were edited todelete bad data and parity errors. The processing and presentation ofcurrent meter data generally follow procedures and formats developed inprevious reports (Halpern et !l., 1973; Halpern et !l., 1974).

The following presentation of the data has been selected as being themost descriptive for a wide variety of users. For each current meter thereare four pages of data presentation "In Sections 14 through 25, includingstandard statistics, speed and direction histograms, time series of u andv components of velocity (east and north, respectively), progressive vectordiagrams, and spectra of the velocity.

3.2. 1 Histogram and Standard Statistics

Speeds and directions were grouped into 1.5 cm/s and 60 intervals,respectively. These data are presented as the actual number of observations in each interval.

3.2.2 Time Series

Time series plots are the hourly averages of the u and v componentsof ve1ocity .

3.2.3 Progressive Vector Diagrams

The progressive vector diagrams were constructed by vector additionof hourly averages of currents. The diagrams do not represent real particle trajectories, but they do give an indication of the longer periodfluctuations in Eulerian motion. Because of the complexity of the diagrams, the ranges vary from 20 to 400 kilometers. Start times are givenin figure 2, and the axes are north and east. There is a "0" at the beginning and a "*" at 0000 hours thereafter.

3.2.4 Spectra

The velocity spectra (see Halpern et al., 1973), plotted in log-logformat, were all computed from Cooley-TUkeY-Fourier transforms using theperfect Daniell frequency window. Dashed vertical lines corresponding tothe diurnal, inertial, and semidiurnal frequencies are marked on the diagrams. By use of a fast Fourier transform algorithm wh,ich required thatnone of the prime factors of the total number of points be greater than97, raw periodograms, defined so that the sum over positive frequencieswas equal to the total variance, were computed for the la-min averagedUto and V10 series. Because on a log-log plot periodogram ordinates arec oser together as the frequency increases, averaging over more frequencybands was done for larger values of the frequency.

3

For each frequency, the complex-valued horizontal velocity vector canbe represented in the hodograph plane by two counterrotating circular motions, each with its own amplitude and phase, namely:

W(o) = U(o) + iV (0) =A e i(at + a) B e -(at + a),

where W(o) is the complex horizontal velocity vector at freq~ency 0, A andB are real-valued amplitudes, a and a are the phases and eio and e-ot arevectors of unit magnitude rotating in the counterclockwise (positive) direction and clockwise (negative) direction, respectively. The rotary spectrum(lower plot), defined as the sum of the spectra of the counterrotationvectors, was computed from the Fourier coefficients using the perfectDaniell window of varying widths. The total kinetic energy is equal tothe integral overall frequencies of the two-sided rotary spectrum. Foreach frequency, the trajectory in the hodograph plane of the velocityvector is an ellipse (or, in the limiting cases, a circle or a straightline). For example, if A=0, there is energy only in the negative component, and the tip of the vector rotates in the clockwise direction describing a circle. If A = B, then the trajectory consists of a straight line,and the motion in the complex U- and V-planes consists of rectilinear oscillations. If A ; B, the shape of the curve is an ellipse, and the tip ofthe vector rotates with the sense associated with the larger amplitude.

3.3 Vector Mean Currents

The vector mean currents in figure 6 are presented to summarize allthe data observations in one figure. They represent the vectors drawn fromthe start to the end of each.Progressive Vector Diagram and are presentedin km/day. Meter depth is labeled at the head of the vector.

Note: A small vector mean does not necessarily imply small currents.

4

--- - ------ - ------

4. ACKNOWLEDGMENTS

We appreciate the continuous and enthusiastic support of Captain AustinYeager and the officers and crew of the NOAA ship McARTHUR.

5. REFERENCES

Halpern, D., J. R. Holbrook, and R. M. Reynolds (1973), Physical oceanographic observations made by Pacific Oceanographic Laboratpries offthe Oregon coast during July and August 1972, CUEA Tech. Rept. 1.Ref. M73-46, Dept. Ocean., Univ. of Washington, Seattle, pp. 1-22.

Halpern, D., J. R. Holbrook, and R. M. Reynolds (1974), A compilation ofwind, current and temperature measurements: Oregon, July and August1973, CUEA Tech. Rept. ~, Ref. M74-73, Dept. Ocean., Univ. ofWashington, Seattle, pp. 1-20.

5

----------

Cruise no. Date (1973) Operation

1 10-11 Oct.: 12 STD casts; two transects off SouthernHaro Strait (ST 11-16).

2 17-18 Oct.: 23 STD casts; two transects Orcas Is1and-Boundary Pass, two transects North RosarioStrait (ST 17-23).

0\ 3 23-24 Oct.: 27 STD casts; 13-hr time series, S-3Mid-Haro Strait.

4 24-31 Oct.: 88 STD casts; 13-hr time series, S-2Southern Rosario Strait; 13-hr time series,S-l Northern Rosario Strait; two transectsoff Southern Rosario Strait (ST 6-10).

Figure 1. Cruise dates and operations.

'l)~/ -.'P- '-';- .

Station Latitude Longitude Current Duration Depth Startno. (N) (N) meters (days) (m) time

26 48°40 136 11 122°42 154 11 3 30 94 00342 Oct. 73

500 48°51 104 11 122°46 128 11 2 3 38 17122 Oct. 73

, ...., 500A 48°45'44 11 122°46 151 11 3 13 100 22449 Oct. 73

37 48°45 11811 122°58 1 36 11 3 30 121 21222 Oct. 73

48 48°35 1 1811 123°13 1 1811 2 30 276 01143 Oct. 73

Figure 2. Current meter stations.

METER

SUB - SURFACE BUOY

CURRENT METER

M.L.L.W.

PLASTICFLOATS

REMOTE RELEASING DEVICE

ANCHOR

Figure 3. Current meter array.

8

---~_.--------------

STRTISTICS OF 73 CHERRY POINT LRT 48 52.00N LONG 122 45.00H0.0 METERS NUMBER OF OBSERVRTIONS = 705

OBSERVRTION PERIOD 29.4 DRYS FROM 0000 GMT 1 OCT 73

MERN VRRIRNCE ST-DEV SKEW KURT MRX MIN(M/SEC) (M/SEC) 2 eM/SEC) (M/SEC) (M/SEC)

S 3.66 5.22 2.28 .633 3.18 11.17 0.00U 2.16 8.39 2.90 .462 3.11 11.01 -5.41V .01 5.54 2.35 .125 3.46 8.40 -7.93

S =SPEEDU =ERST-WEST COMPONENT OF VELOCITY. ERST = POSITIVE UV =NORTH-SOUTH COMPONENT OF VELOCITY. NORTH = POSITIVE V

80,--------------------------.-

(1)80Zo......I-

~40~

WCI)aJOro

oo 2 4 S 8 10 12

SPEED eM/SEC)14 16 18 2D

100,-----------------------r

80t1JZ

°...... 80l-e:>eJ40(I)aJo

ro

~ 80 ~ W ~ ~ ~ m ~ ~ ~ ~

DIRECTION (DEGREES. TN)

Figure 4.1. Wind--Cherry Point: Standard statistics and histograms.

9

PROGRESSIVE VECTOR DIAGRAM OF HOURLY AVERAGES OF 73 CHERRY POINTOBSERVATION PERIOD 29.4 DAYS FROM 0000 GMT 1 OCT 73.

. 0.0 METERS.

N6O+----........---.L..----L..-------'L....-------''-------+

50

40

(I)

f5 SOIW:E:o.J....x:

20

10

o+0----1..,....O----20,....----30~---4Or----50r-------+60 E

KILOMETERS

Figure 4.2. Wind--Cherry Point: Progressive Vector Diagram (PVD).

10

PHASE I

PHASE II

RIN'l'OUT:NDERAA

NGINEERI K>VALUES

P60 BIT/6-10 BIT

ST.'\.'.~:-\- IZEDUNI'r

SUPPLY

A

EDIT~HASE II .'1/

A PRINT

CALCOl-lPPUNCHE

CARDS

CALCOHPPLOT

LIST ANDOR PLOT

Figure 5. Data flow.

11

40'

4B30'N

ST-11

5m

10'

oI

10'

MEAN CUltRENTS

10!

km/day

20I

22m

50'

500~

7m

22m

, 5m~"'b S-1

·500A

50'

40'

40'

50'

Figure e. Chlrt of working area: Met., 1~t1o"5. time series locations,trlDSect locations, and -.n current display.

12

100

r2!Ql

E150

I~Cl.UJ0

200

250

E WST-12 ST-13 ST-14 ST-15 ST-16 ST-II

9.6

EST-13 ST-14 ST-15 ST-16

3001....--------------~

10 OCTOBER 19731733-1942 ZMAXIMUM EBB 1555 ZSLACK BEFORE FLOOD 1924 Z

II OCTOBER 19730012-0230 ZSLACK BEFORE EBB 0031 Z

Figure 7.1. Transect #1, South Haro Strait, 10-11 October 1973(ST11--ST16)--Temperature.

13

J:~Cl.Wo

E WST-12 ST-13 ST-14 ST-15 ST-16 ST-II ST-12

EST-15 ST-16

300 '-------------------'


1\ OCTOBER 19730012-0230 ZSLACK BEFORE EBB 0031Z

Figure 7.2. Transect #1, South Haro Strait, 10-11 October 1973(STl1--STl6) --Sa1i ni ty.

14

:I:Iel.Wo

E WST-12 ST-13 STd4 ST-15 ST-16 ST-II

EST-13 ST-14 ST-15 ST-16

300 '-- ---J


II OCTOBER 19730012-0230 ZSLACK BEFORE EBB 0031 Z

Figure 7.3. Transect #I t South Haro Strait t 10-11 October 1973(STll--ST16)--Sigma-t.

15

en...~Q)

E

WST-17 ST-18 ST-19 ST-20.Or----,--.....",--=,........~-........~

E WST-23 ST-17 ST-18

EST-23

250'---------------------J

17 OCTOBER 19730459-0828 ZMAXIMUM EBB 0629 ZSLACK BEFORE EBB 0240 Z

17 OCTOBER 19731020-1232 ZMAXIMUM FLOOD 1338 ZSLACK BEFORE FLOOD 1136 Z

Figure 8.1. Transect #2, North Haro Strait, 17 October 1973(ST17--ST23)--Temperature.

16

E WST-18 ST-19 ST-20 ST-21 ST-22 ST-23 ST-17 ST-18 ST-19 ST-20

<I>...Q)

Q;E

:I:ICLWo

250'-------------------'

17 OCTOBER 19730459-0828 ZMAXIMUM EBB 0629 ZSLACK BEFORE EBB 0240 Z

17 OCTOBER 19731020-1232 ZMAXIMUM FLOOD 1338 ZSLACK BEFORE FLOOD 1136Z

EST-23

Figure 8.2. Transect #2, North Haro Strait, 17 October 1973(ST17--ST23)--Sa1inity.

17

--- --- - ~~-~~-

EST-23

17--r'\~::S=~:::::::::I2~~71

W E WST-17 ST-18 ST-19 ST-20 ST-21 ST-22 ST-23 ST-17 ST-18 ST-19 ST-20

°l---::!"~==r-"""""""'~~~~e:~

~

~ 150a..wo

250L...------------------l

17 OCTOBER 19730459- 0828 ZMAXIMUM EBB 0629 ZSLACK BEFORE EBB 0240 Z

17 OCTOBER 19731020-1232 ZMAXIMUM FLOOD 1338 ZSLACK BEFORE FLOOD 1136 Z

Figure 8.3. Transect #2, North Haro Strait, 17 October 1973(ST17--ST23)--Sigma-t.

18

W E W EST-I ST-2 ST-4 ST-5 ST-I ST-2 ST-3 ST-4 ST-50

IVl I... 9.3C1l..- IC1l /E

50 //

I /~

,/a.. ,

/w \.0 _/

100

18 OCTOBER 1973 18 OCTOBER 19730538 - 0710 Z 1238-1351 ZSLACK BEFORE EBB 0409 Z SLACK BEFORE EBB 1323 Z

Figure 9.1. Transect #3, North Rosario Strait, 18 October 1973(ST1--ST5)--Temperature.

19

100 L....-----::.....:....U>o::lu.L..:.--=-- ---l

18 OCTOBER 19730538 - 0710 ZSLACK BEFORE EBB 0409 Z

EST-5ST-4ST-3

",30.5/ 30.6

//

I/

II

II

ST-2

18 OCTOBER 19731238-1351 ZSLACK BEFORE EBB 1323 Z

WST-I

30.4

EST-5ST-2

WST-IO,------,.or-.-"T-.IIC..

50:I:~a..wa

If)...Q)-Q)

E

Figure 9.2. Transect #3, North Rosario Strait, 18 October 1973(ST1--STS)--Sa1inity.

20

18 OCTOBER 19731238-135\ ZSLACK BEFORE EBB 1323 Z

E

ST-5

23.6

ST-4ST-3

....-,23.7

"//

I/

II

I

ST-2

E W

ST-5 ST-I

W

ST-I ST-2

o 23.6

50

100 l.-_:....t..:.!hd-:L:..!.!....- --.J

18 OCTOBER 19730538- 0710 ZSLACK BEFORE EBB 0409 Z

Iln.wo

U'l...(\)-(\)E

Figure 9.3. Transect #3, North Rosario Strait, 18 October 1973(ST1--ST5}--Sigma-t.

21

ST-9ST-8ST-7

29 OCTOBER 19731404-1506 ZMAXIMUM FLOOD 1228 ZSLACK BEFORE EBB 1635 Z

W E WST-6 ST-7 ST-8 ST-9 ST-IO ST-6O..-----r-~----.-.....-~--.-------. ,.......,..---r--..--..--------,-~-___.

100'--------------........1

29 OCTOBER 19730841-0942 ZSLACK BEFORE FLOOD 0947 Z

~

Ul...Q)-Q)

E

I.....n.wa

Figure 10.1. Transect #4~ South Rosario Strait~ 29 October 1973(ST6--ST10)--Temperature.

22

29 OCTOBER 19731404-1506 ZMAXIMUM FLOOD 1228 ZSLACK BEFORE EBB 1635 Z

Vl~

Q)......Q)

E

Ifa..wa

W E WST-6 ST-7 ST-8 ST-9 ST-IO ST-6O......-----,rr---;------,..........--.-----.-----,

100'--------------------J

29 OCTOBER 19730841- 0942 ZSLACK BEFORE FLOOD 0947 Z

ST-7 ST-8

\\\\\\

30.9

EST-IO

Figure 10.2. Transect #4, South Rosario Strait, 29 October 1973(ST6--ST10)--Sa1inity.

23

EST-IOST-9ST-8ST-7

29 OCTOBER 19731404-1506MAXIMUM FLOOD 1228 ZSLACK BEFORE EBB 1635 Z

W E WST-6 ST-7 ST-8 ST-9 ST-IO ST-6Orr----,-------,n-.-------..:;:--,-------, .---------.-----.---r---....,...,.--------,

100'------------------'

29 OCTOBER 19730841-0942 ZSLACK BEFORE FLOOD 0947 Z

III...Q)-Q)

E

I....0Wo

Figure 10.3. Transect #4, South Rosario Strait, 29 October 1973(ST6--ST10)--Sigma-t.

24

24 OCTOBER1600 2200 2400 0200 0400 0600

O.--------.-----.::...:-;-..---::....:.,....---,=---,....---.....,.----.---r--:lo-T'"--.--.....,..."""""I::II"'""-..

50

III100...

Q)+-Q)

E

II- 150a..w0

\8.4

200

~8.2250

4

<J)

2+-0c~

00W~ -2(/)

-4

23-24 OCTOBER 19731546-0626 Z

Figure 11.1. Time Series #1, Haro Strait, 23-24 October 1973(S-3)--Temperature.

25

50

11'1~ 100Q)-Q)

E

I......Cl. 150w0

200

1600

23 OCTOBER

1800 2000 2200 2400

24 OCTOBER

0200 0400 0600

250 l-----L. ..l...-__---L_----L_L-.__....I.-__---l ....l...-__----I._.......J

4r----.---,..-------.----,------r-------,r------r------.----,2020

11'1

'0 2c

.>I:

_4l-----L. .L.-__---l... L-.__....l...-_--=0:....:.19=..;5=---__...L__........J.._-.J

OI--~otC__--------~~-=-=-----------~~~oww -2Cl.(J)

23 - 24 OCTOBER 19731546-0626 Z

Figure 11.2. Time Series #1, Haro Strait, 23-24 October 1973(S-3)--Sa1inity.

26

50

III 100...Q)-Q)

E

:I:f-Cl. 150wa

200

23 OCTOBER1800 2000 2200 2400

24 OCTOBER0200 0400 0600

4r---,----r----.-----,------,r----.----......-----,r---,

IIIo 2c~

01-----7t'~--------~------------"7i---1

aw~ -2(/)

- 4 '------'- '--__--'--__----'-__----J'--__....L..-__---'-__---I'--......

23-24 OCTOBER 19731546-0626 Z

Figure 11.3. Time Series #1, Haro Strait, 23-24 October 1973(S-3)--Sigma-t.

27

29 OCTOBER 30 OCTOBER1600 1800 2000 2200 2400 0200 0400 0600 08000 -9.2~ I I I I I I

-III~

Q/...Q/ 20 f- -E <9.3

Il-ll.W 40 ,.... -Cl

I I I I I I I

4r------r----~--__r_---_r_--___r---_r_--___,.--__,

2159

Cl O/--------...t"------------"""io=--------=--HW

~ -2en

-III...g 2~

-4 '--- -----'-_-----'- --...... -'--__----1- -'--__----1-__----'

29 - 30 OCTOBER 19731603-0728 Z

Fi gu re 12.1. Time Series #2, South Rosario Strait, 29-30 October 1973{S-2)--Temperature.

28

----------------

III .......~

Q) "- "Q) 20 "E .30.9

I \~ \a.. \w 400

1600o

29 OCTOBER1800 2000 2200 2400

30 OCTOBER

0200 0400 0600 0800

II

, ,I,30.9I I\i /;31.0

'I

4.-------,------,;----...,....------r----r---......,...---,------,

III

'0 2c FLOOD~

Of-------"7f""'------------------=~o::::__-----____.,~""-I

oww 2a..en

29 -30 OCT08ER 1973

Figure 12.2. Time Series #2, South Rosario Strait, 29-30 October 1973(S-2)--Sa1inity.

29

301600 2400 0200 0800

0I

IF> - ,... "~ " ,Ql 20 " JE "23.9 23.8 23.8 23.9:I: \

\ ) I 24.0f- \ I

Ia.. I ,I.LJ 40 I I0

2159IF>'0 2c.,.;

o 0I.LJ

~ -2(f)

4r----.----,,....----........------..---..,.-------.----..------..,...--.

- 4 L......:..::..:...:.~::=:c:..:.=:.:.......::= __l______L_~_ __L_____'_ .l...___....J

29 - 30 OCTOSE R 19731603-0728 Z

Figure 12.3. Time Series #2, South Rosario Strait, 29-30 October 1973(S-2)--Sigma-t.

30

30 OCTOBER

1600 1800 2000Or----r......--""""".........,~-r__"""T"1r__T'"-~=,::....-=----=-.;:....::...----=:....=,:::....:.....---=-..:.=_::........

~.3

~ 9.2~

.e 20Q)

E

::J:I-

~ 40o

4r---;----,----....,...---r-----,----r----......,....----.

~ 2oc

.><:

oILl

~ -2(f)

FLOOD

EBB 2050

0148

-4'------'------'----------l--_--L... l...-__--l... ...l....-----l

30-3\ OCTOBER 19731528-0428 Z

Figure 13.1. Time Series #3, North Rosario Strait, 30-31 October 1973(S-l)--Temperature.

31

I"30.7 "1 ,

1 f'.... "I ,_,, 30.8,,,,,,,,

31 OCTOBER

0200 04002400O..--.:..=;:..:;.....,...........,,....:.::;:..:..-~~r-r-m-::.::.,~r--r---T---r---.----n-----,

29.8

30.0 30.2~0.0~=-"'30.4 " ..... ' \.\ /'\ 1----'-..... \3r j:.:~;,?:33:56 \

" "V '-/ \, \ I \, \ I \, \J \, \

I I;'\ ", ,

/ \,/ \ 3~.7 \

I I

I ' \\;/ \

\\

20

III40...

Q)-Q)

E

Ifo- 60Cl.UJa

80

100 L-----l --l.- .L..-__----l.. ....l...- L.....-__---'-_

4.------.-----.----,-------,---..,.------,----.-_

III-oc~

0148

ol-----=:Sk-----~ ~::::===t:::::======.-..jaUJ

~ -2en

EBB 2050

-4 L.----L ---.L .l....-__---L.. ...l...-__----l ---L...----I

30-31 OCTOBER 19731528-0428 Z

Figure 13.2. Time Series #3, North Rosario Strait, 30-31 October 1973(S-1)--Sa1inity.

32

30 OCTOBER 31 OCTOBER

1600 1800 2000 0200 04000

~/1\

,\ 23.6 I \/ \ I \

\ ,/ \20 \ ,.\

\ I \\ I \-- \ I \ IIII J~ \ \ I IQ) 40 ,- \ \ I IQ)

E \, V I, ,

:I: , II-(l. 60 , , ./U.J , J0

, J 23.8

, I f80 ' I,

100

4

III2

FLOOD-0Co 0148~

00U.J

~ -2 EBB 2050(J)

-4

30-31 OCTOBER 19731528-0428 Z

Figure 13.3. Time Series #3, North Rosario Strait, 30-31 October 1973(S-l)--Sigma-t.

33

STATISTICS DF 73 SAN JUAN 500 LAT 48 51 .04N LONG 122 46.28WDEPTH 7.0 METERS NUMBER OF OBSERVATIONS = 470

OBSERVATION PERIOD 3.3 DAYS FROM 1712 GMT 2 OCT 73

MEAN VARIANCE ST-DEY SKEW KURT MAX MIN(CM/SEC) (CM/SEC )2 (Ct1ISEC) (Ct1ISEC ) (Ct1ISEC)

S 12.73 97.26 9.86 .903 3.34 49.00 0.00U -1.21 96.20 9.81 .472 4.34 33.44 -24.72V -4.73 139.33 11.80 .860 5.74 46.03 -31.51

S =SPEEDU = EAST-WEST COMPONENT OF VELOCITY. EAST = POSITIVE UV=NORTH-SOOTH COMPONENT DF VELDCITY. NORTH =POSITIVE V

IO~---------------------r

10

ot-.......,.-..,.----.-_,_-r----,--.,...="""'-rl=-==t-...ea.,-.....,....---+o & W ~ m _ ~ S ~ • m _ 10

SPEED (CM/SEC)

IO~-----------------~

(1)10

~-I-Cl:4Q

~

~om

0+-"1Q.p-..,..e'---,~"""T'"""-r-.....,....--r--~--L........--..r--'~:...:::....&o ~ 10 m ~ ~ ~ m ~ m ~ _ _DIRECTIDN (DEGREES. TN)

Figure 14.1. Current Meter Station 500 (-7m):Standard statistics and histograms.

34

HOURLY AVERAGES OF NORTH-SOUTH COMPONENTS OF CURRENT VELOCITYDEPTH 7.0 METERS.

10

i.I 0

i---eo s &

lIC1''1S

HOURLY AVERAGES OF EAST-WEST COMPONENTS Of CURRENT VELOCITYDEPTH 7.0 METERS.

·10

i.

I 0

i---eo s &

lIC1''1S

Figure 14.2. Current Meter Station 500 (-7m): Time series.

35

PROORESSIVE VECTOR DIAGRAM OF HOURLY AVERAGES OF 73 SAN JUAN 600OBSERVATION PERIOD 3.3 DAYS FROM 1712 GMT 2 OCT 73.

DEPTH 7.0 PETERS.

NIO+-- ---L. .L...- """"- --+

&

O+O-----T"S----=--1.....O-----.-------4IO

E

KILOI1ETERS

Figure 14.3. Current Meter Station 500 (-7m):Progressive Vector Diagram (PVD).

36

• U II'II:IIUI- Y IftI:1IIII

8PECTM Of aJtRENT VEl..DCITY DEPTH 7.0 r£TER8.

IlIDPER100JtIU8) 1 .1 ~__IlID_PER...,.IOO........J_tIU8__)...1__-t.1

ROTfIn' 8PECTM.

"t--------t~r__---------'T"""'f4_-----__t

-.1 -FREm.ecY I CYa.ESIKlIt)

Figure 14.4. Current Meter Station 500 (-7m): Spectra.

37

STATISTICS OF 73 SAN JUAN 500 LAT 48 51.04N LONG 122 46.28WDEPTH 20.0 METERS NUMBER Of OBSERVATIONS = 470

OBSERVATION PERIOD 3.3 DAYS f'RDt1 1730 Of1T 2 OCT 73

MEAN VARIANCE ST-DEV SKEW KURT MAX MIN(CM/SEC) (CtVSEC)2 (CMlSEC) (CM/SEC) (CtVSEC)

S 15.28 107.15 10.35 .681 2.52 43.00 0.00U 6.28 16.40 4.05 .328 2.05 16.11 -.27V 13.71 96.87 9.84 .488 2.85 39.87 -17.00

S =SPEEDU =EAST-WEST COMPONENT Of VELDCITY. EAST =POSITIVE UV =NDRTH-500TH COMPONENT Of vaOCITY. NORTH =POSITIVE V

to.,------------------~

liD

10

o+----T-"'T"""'----.-"""'r"-r----r"-__---T.....:::::L-r--~-"""'r"___4o 6 W ~ m m _ s ~ • liD • toSPEEO (CtVSEC)

1IiO-r---1---------r200

~8 1110....a:>ffi 111)

~

o ~ to ~ ~ • ~ ~ _ m _ _ _


o 1


38

SPECTRA IF WH:NT VELOCITY DEPTH 20.0 t£T'ER8.

,.,PfRIOOJtIU8l 1.1 ,.,PfRIOOJtIU8l 1 .11J":!.---::;O~-r-~-""""'-~

• U lftI:IIIIl- Y lftI:IIIIl

ROTMY SPECTRA.

ut't---t------l......-r----+-------""T"""........-------+


39

----~----------~ ----

STATISTICS Of 73 SAN JUAN SODA LAT 48 4S.44N LONG 122 46.S1~

DEPTH 5.0 METERS NUMBER Of OBSERVATIONS = 180aOBSERVATION PERIOD 12.5 DAYS FROM 2244 GMT 9 OCT 73

MAX MIN(CM/SEC) (CM/SEC)

KURT

4.77 135.00 0.003.47 55.84 -80.322.84 118.00 -85.16

SKE~

1.195- .291

.174

VARIANCE ST-OEV(CM/SEC)2 (CM/SEC)

560.73 23.68374.15 19.34

1446.28 38.03

MEAN(CM/SEC)

S 36.97U -7.94V 6.66

S =SPEEDU = EAST-WEST COMPONENT OF VELOCITY, EAST = POSITIVE UV =NORTH-SOUTH COMPONENT OF VELOCITY, NORTH =POSITIVE V

80..-----------------------.......

Cf,)80Zo-~~4OQ:;l.LJ

~°20

O+----.-..-----r-----,.---.....,.-----,--.---::......,.:=----=~~~~~L......IJ,...............o 10 20 SO 40 50 80 70 80 90 100 110 120 ISO 140

SPEED (eM/SEC)

150..-----------------------.....

Cf,)~loo

~a:>Q:;l.LJ

~ soo

SO 60 90 120 ISO lao 210 240 270 !CO 330 360


Figure 16.1. Current Meter Station SOOA (-Sm);Standard statistics and histograms.

40

HOURLY RVERRGES OF NORTH-SOUTH COMPONENTS Of CURRENT VELOCITYDEPTH 5.0 METERS.

lZO .---------------------------------,-

l~

~ 60

~ O~H_+_+_+_++_\_+_'r+_t---''_++_---lr_t_-+_4-:..+_+_~c_+~'T_I~__:_+_T_f'r__+_+_t--_+ru

-120 .J,---~10

OCT73

_---,__~, ,-u__-.-._----.__-.--_-,- ..-_,--_

15 20

HUUFi: Y RVLRHGLi 'I fH::jI-I-lEST CUMPONENTS OF CURRENT 'yLJeITYD[F'lH 5.0 M[TER~).

120

>--co

60a:...f::Cf) 0~~

0--6llCf)

~

-12010

OCT71

~-~---.-----.----~,---.,.--20

Figure 16.2. Current Meter Station SODA (-Sm): Time series,

41

PROGRESSIVE VECmR DIAGRAM Of HOURLY AVERAGES Of 73 SAN JUAN SOOAOBSERVATION PERIOD 12.5 DAYS fROM 2244 GMT 9 OCT 73.

DEPTH 5.0 METERS.

N100

90

80

70

80

(f) ~!a:::w . II-Wz::0-J 40:lI:::

30

20

10

00 10 20 30 40 60 80

KILOMETERS90

Figure 16.3. Current Meter Station 500A (-5m):Progressive Vector Diagram (PVD).

DEPTH 5.0 !tETERS.

f'ERIOO (~S)

lJ,fDlr- ll1J_--:r-...l...0---_----t'1

SPECTRA Of CURRENT VELOCITY

PERlOO (HOURS)Urr-:lJ l ...lIJ_---,---,1...0 ...I __---t,1

.1~CY (CYClES/I'ClJRl

loJ

+ U SPEl: TlU1- y ftI:TIUt

Hf

+1('" i----.m----<,I~-----l!II...-t------±

fRfQI£NCY (CYClES/toJR J

ROTARY SPECTRA,

:r.' r------·...I'EI~ rI'll' sr'ECTIUI

10'

'-"·.1

!~\lf:rto'

-.01fREal.£HCY (CYCLES/HlJ..fl)

ri~)ut'e 16.4. Current Meter Station 500A (-5m): Spectra,

43

STATISTICS OF 73 SAN JUAN 50UR LAT 48 45.44N LONe 122 4t..:'~~;

DEPTH 22.0 METERS NUMBER OF OBSERVATIONS = 1800lJBSERVRT IiJN PER100 12.5 DAYS FROM 2242 GMT 9 or; 'T3

MEAN VARIANCE ST-DEV SKEW KURT M.+"i\ t1 j :" J(LM/SEC) I CM/SEC 12 (eM/SEC) (eM/'lei (1..:11/,-:i:..

S 35 •~1+3 519.52 22.79 1.103 4.00 11~}.UO 2 i"', .IJ -7.'iS 337.23 ]0.36 -.285 3.31 4U·97 7"-'. , '" 12.85 ~206.47 34.:3 ,..,,.,r:- :-' .11 If)S.~7

c"" ', ..• .'-'- ..... ' .t...... .S :: SPEE[lU -=- EAST--WEST COMPONENT [}F VELOCITY. ERST = FC1SlTIvr- !j1/-: NfJRTH·-SnUTH COMPONENT OF VELOCITY. NORTH : f'l-:S i : : \II': V

Ia:>0:::Wif)

enD

1001

~ ~i

20l iJ IrL rlI I' -, r.l Jl ..tflll tf u t JI'1 ,..-- I

(""'r 'f -or .."""T • __or ". J._,10 'j{)" ~':;'i 130 1[1 fl(' ,10 I :ll;

r

~itI

Ir!

, f.• _.J .....

1'1 L'O

::in L 1.1 (eM/SEC J

I

I

r---l:m 3lill

t-.

glOO0:::WlfJ(D

o 50

"' ]-- .. ------_..--_._. ----_._-- .~-_.- .!~~:-Z i ,Ir::;

jliI

f'__ )VV'~_~y)'o --.,.--~-------, ----r---------.,----.--, I-

I] 30 60 90 120 150 1~ 210 240 270 ~

DIRlCTION (DEGREES. rNJ

Figure 17.1. Current Meter Station 500A (-22m):Standard statistics and histograms.

·1/1

- ---- -------------


1m

:I:...~ 60

UIII 0fi

7:.-«1il

-1m10 15 20

OCT73

HOURLY AVERAGES OF EAST-WEST COMPDNENTS OF CURRENT VElOCITYDEPTH 22.0 METERS.

120~------------------------------r

i SJ

~ O-+f+;;-;/r--++-Pr.--J+-----=--+t--F-\--F--\--A.r--:-\---.~~~~_:_+_~=_I_+_fJoJo_+_l_'<rv_+

;-«1-120.lr----r-----.-----.--..----......------.--"""T'"----.-----..,....---...-----.----.------L

W ~ 20OCT73

Figure 17.2. Current Meter Station 50DA (-22m): Time series.

45

--------- ~----

PROGRESSIVE VECTOR DIAGRAM OF HOURLY AVERAGES OF 73 SAN JUAN 500A(}BSERVATION PERI(}D 12.5 DAYS FR(}M 2242 GMT 9 OCT 73.

DEPTH 22.0 METERS.

N160+-----------''-----------'---------+

(f)a::::w....wz::ooJ....:ll::

100

50

O+--------...r----------r--------+Eo 50 100 1&0

KILOI1ETERS

Figure 17.3. Current Meter Station SOOA (-22m):Progressive Vector Diagram (PVD).

46

DEPTH 22.0 METERS.

PERI00 (1iOlV«i)lJIDJ-.;::::..__.::1111:;:...._~.;..10~---i------i.1

SPECTRA Of CURRENT'VELOCITY

PERIOD (HOURS)1l}1DJ+-=-__..:.1111+---_-r-..;;10t--__-i-__---i.1

• U Sf'EC1IIlJ1- v tIPECTlUl

..UILl~10'z:u

ul

.1FREQl£NCY (CYCLES/HOUR)

10'

N-UILl~lo"z:u

10"

10. .ot .1 1FREll.ENCY (CYC1.ESlHOUR)

10

ROTARY SPECTRA.

1" t----+----+r--.------+---------r--,+--------tI I

10'

1 _ 0 -4FRElLEHCY (CYCLESltOJR)

Figure 17.4. Current Meter Station SODA (-22m): Spectra.

47

STATISTICS Of 73 SAN JUAN 500A LAT 48 45.44N LONG 122 46.51WDEPTH 83.0 METERS NUMBER OF OBSERVATIONS = 1800


MEAN VARIANCE ST-OEV SKEW KURT MAX MIN(CM/SEC) (CM/SEC)2 (CM/SEC) (CM/SEC) (CM/SEC)

98.00 2.0037.89 -62.6290.87 -67.99

3.686.974.33

1.089.428.888

19.678.02

18.64

387.0964.34

347.54

S 29.60U 11.86V 26.65

S =SPEEDU = EAST-WEST COMPONENT OF VELOCITY. EAST =POSITIVE UV =NORTH-SOUTH COMPONENT Of VELOCITY. NORTH =POSITIVE V

160....-----------------------.-

CI:J~1lJ)....Ia:>0:::

~60CDo

w m ~ ~ 60 00 ~ m ~ ~

SPEED (CM/SEC)

1_

CI:J~ UOI....Ia:>D:::W~5aJo

o+-....L.-..,~...1-------r--'T"'""""~-"""T"'""-._____,_-.,..__.,r_____r_-.,....____+o ~ ~ ~ ~ ~ ~ ~ ~ m ~ ~ _


Figure 18.1. Current Meter Station 500A (-83m):Standard statistics and histograms.

lI8

.1

DEPTH 83.0 I£TERS.

PER 100 nllJRS)IlIIJ IlID 10 1

UI" t---_r--T"'"------t

SPECTRA Of' aJRRENT VELOCITY

PERIllO Jt0JR8)l()r8Ir-__UIl_-T"'""1.......--...1----t.1

+ U lftJ:1IUl- v lftJ:1IUl

IIr'

.1FREUNCY (CYClES/HOUR)

10'

lCrl

FREraENCY (CYa.E8/tOJR)

ROTARY 5P£CTRA.

ulr-------+r---T--------l-----~.......------__t

1 _ 0 -FREQlEHCY (CYCl.£SItOJR)

Figure 18.2. Current Meter Station 500A (-83m): Spectra.

49

STATISTICS OF 73 SAN JUAN 48 LAT 48 35.21N LONG 122 13.28WDEPTH 5.0 METERS NUMBER Of OBSERVATIONS = 2400


MEAN VARIANCE ST-DEV SKEW KURT MAX MIN(CM/SEC) (CM/SEC)2 (CM/SEC) (CM/SEC) (CM/SEC)

S 64.02U -1.66V -25.55

1464.09414.30

4493.32

38.2620.3567.03

.700-.293

.402

2.92 184.00 0.004.39 90.33 -83.162.85 170.69 -183.31

S =SPEEDU =EAST-WEST COMPONENT OF VELOCITY. EAST =POSITIVE UV =NORTH-SOUTH COMPONENT OF VELOCITY. NORTH =POSITIVE V

80,---------------------......

50

10

10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200

SPEED (CM/SEC)

!OIl,---------------------~

2IiO

CI)

~2OO

..-~ UiO~w~100c

IiO

30 80 110 120 ISO 180 210 240 270 !OIl 330 360


Figure 19.1. Current Meter Station 48 (-Sm):Standard statistics and histograms.

50

20


180.,....----------------------------..,.

i 80

~ 0 .j.......j.-l----++----++---I-l--++--I+--I-J,~_I+++++_H_iI+++_H_+H_I_+h\_H_1I,.._t_lr__H__+_+

;-00-180 .L-___r.--,I5r----r--~----.r----r--....1D--r--..----r-~-1'!:"5 -~.......,----.--~---:!:.211

OCT73

HOURLY AVERAGES OF EAST-WEST COMPONENTS OF CURRENT VELOCITYDEPTH 5.0 METERS.

180,----------------------------...

i 90

~ D~t-tf"'''_\r._~JmA~~InfA.At1p..tJbPorrPrfj__nr~_Mf_IIrM~~A___t':IW+~f\rf~rl+fJt+_+

; -90

-180 J..---.--"""!"-.....---.--....--.....---.--....--.....---.--....--.....---.-_....-_.....-........_-J.• 5 W ~

OCT73


51

- -- - ----- -------~~ -----

PROGRESSIVE VECTOR DIAGRAM OF HOURLY AVERAGES OF 73 SAN JUAN 48OBSERVATION PERIOD 16.7 DAYS FROM 0114 GMT 3 OCT 73.

DEPTH 5.0 METERS.

N400+----'----'-------''-------1.------'------'------'----+

2&0

(/)

ffi200.....Wz:o..J;;;: 1&0

100

&0

l0

400E

0 &0 100 1&0 200 2&0

KILOMETERS


52

FRE'l£NCY (CYa..ESItdJR)

1ff

~UIU

~10'u...

+ U ftCTIUl- y ftCTIUl

SPECTRA OF aJRRENT VELOCITY DEPTH &.0 1£T!RS.

PERIlIl £t«lJRSI PERIlllJlON1IIlD 10 1 .1 U}I1mr-__l...lID_--,---r_--....l-----t.l

I II rJUlIIl' lftCnIIt

1 .1fREQUENCY (CYQ.E5/HOUR J

ROTARY SPECTRA.

ufr---__--_~---+---O------"T"'""........-----_

..lff

1ff

10~r.O;-------<;_1:---L.L..-+;---_""I;:-1----+-------:t:,....---t-"-.L..-.-.,....--"':t.FRElI..ENCY (CYCLESIt«lJR I


53

STATISTICS OF 73 SAN JUAN 48 LAT 48 35.21N LDNG 122 13.28WDEPTH 270.0 METERS NUMBER DF DBSERVATWNS = 2400

DBSERVATIDN PERIDD 16.7 DAYS FRDM 0120 GMT 3 DCT 73

MEAN VARIANCE ST-OEV SKEW KURT MAX MIN(CM/SEC) (CM/SEC)2 (CM/SEC) (CM/SEC) (CM/SEC)

S 52.80 1457.08 38.17 .812 2.95 178.00 0.00U -7.43 1010.24 31.78 -1.380 7.37 115.04 -175.05V 18.02 2855.10 53.43 .047 2.42 177.74 -146.20

S = SPEEDU = EAST-WEST CDMPDNENT DF VELDCITY. EAST =PDSITIVE UV =NDRTH-SDUTH CDMPDNENT OF VELDCITY. NDRTH =PDSITIVE V

8O~----------------------r

~o~-r-~--r----r~----.-.-----r--~-r--.-~=--r~~~;..LI!=~aj..o 10 20 30 40 50 80 70 80 90 100 110 120 130 140 150 180 170 180

SPEED (CM/SEC)

(1)80

t5-...g;4Offi(I)en020

2OO~-------------------"'T

(1)1&0:zo-...g;100ffi(I)eno &D

30 80 90 ~ ~ ~ m ~ m B ~ _

DIRECTIDN (DEGREES. TN)

Figure 20.1. Current Meter Station 48 (-270m):Standard statistics ~nd histograms.

54

HOURLY AVERAGES Of NORTH-SOUTH COMPONENTS Of CURRENT VELOCITYDEPTH 270.0 METERS.

~ i A A ~I

~ I~

~ AI N AI A, Av r ~ v V V V

~ V IJ "V V \I V \I V V

'I

140

u

~ 0

-1404 II

OCT

"10 15 2IJ

HOURLY AVERAGES Of EAST-WEST COMPONENTS Of CURRENT VELOCITYDEPTH 270.0 METERS.

14O~-----~---------------------...

i '70

I 0 ~~~~~"'tIltf\Irrf-'tliIW'I~~~\'fIItt\f+¥I+"rt+fJ«F-HII+-~~~~~A-+

; -'70

-140 ..L...-.......,...--:r----..,...-"'T''""'"___,.-"""T'''""__.r:----r--~......,...-_r___l:....,..-"'T"""'"---,.-"""T"'""__.-_+

4 & 10 11 l!IIOCT73


55

PRDGRESSIVE VECTDR DIAGRAM OF HOURLY AVERAGES Of 73 SAN JUAN 48DBSERVATIDN PERIOD 16.7 DAYS FRDM 0120 GMT 3 DCT 73.

DEPTH 270.0 METERS.

N3OD+-------'-----L--------L...------------''''''-----t

2DO

enf5 1&0Il&J

~-I-x:

100

0+0---....,....r------.------r----"T"""'"""----.,...-----+_E.... 100 1150 200 210 ......

KILDMETERS


56

I II .-r II'II:IlUIIII

IEJ"TH270.0 r£lERS.

.PERIl!)JItUS) 1 .11~-~~"'T""""To;....---+----t

+ U II'II:TlUl-v~

&f'£CTIVl OF aJRRENT VELOCITY

PERIl!)JItUS).J-.,.....__�l�t_-.....,!"""'---...1 ----t••

l'

ROTMY SPECTRA.

lr1 .,.....------+r..,.-----------"""T'"-r------t-----t

l'

1 _ 0-1 -F1£'lDCY (cYa..£SltdJR)


57

STATISTICS OF 73 SAN JUAN 37 LAT 48 45.14N LONG 122 58.34WDEPTH 22.0 METERS NUM8ER OF OBSERVATIONS = 2400


MEAN VARIANCE ST-DEV(CM/SEC) (CM/SEC)2 (CM/SEC)

SUV

47.767.93

12.80

762.62908.67

1907.91

27.6230.1443.68

SKEW

.904-.110

.384

KURT MAX MIN(CM/SEC) (CM/SEC)

3.52 161.00 2.002.73 109.47- -78.822.55 154.77 -87.66

S =SPEEDU =EAST-WEST COMPONENT OF VELOCITY, EAST =POSITIVE UV =NORTH-SOUTH COMPONENT OF VELOCITY, NORTH =POSITIVE V

80.,....------------------------...

~80o.........~40~w~020

O~_r__.___.__~__r____r____r__r____,-~r__~::;,..::JJ~..........___f'___,_-+

o 10 20 30 40 50 80 70 80 go 100 110 120 130 140 150 180 170 180

SPEED (CM/SEC)

2OO,....-----------------------r

(1)150zo.........~lOO~W(1)mo 50

30 80 go ~ ~ ~ m ~ m ~ ~ _DIRECTION (DEGREES. TN)

Figure 21.1. Current Meter Station 37 (-22m):Standard statistics an~ histograms.

58

HOURLY AVERAGES OF NORTH-SOUTH COMPONENTS Of CURRENT VELOCITYDEPTH 22.0 METERS.

~~}~ A

~

~JA

-'V ~~~~~VVVV~~V V V ~ VV III

lal~

I lID

-lal3

OCT'J3

6 10 16


lal~---------------------------r

a lID

i O+&-H---+-+--t-+--t+-'f-'lt+-tH-t+t+-t++t+t+'rl-++-tH+-\iH+~r++f--H-t+--+t---+

-Il!ll ~3----6!"'""-----""""""---'--'---1""0-.....-~-....,....-r---1'r"'5_.....----.._--.-_....--..J..OCT'J3


59

PROGRESSI VE VECTOR DIAGRAM OF HDURLY AVERAGES OF 73 SAN JUAN 37OBSERVATION PERIOD 16.7 DAYS FROM 2122 GMT 2 OCT 73.

DEPTH 22.0 METERS.

N2OO+---------L-------'-------L.....------+

1&0

enffi 100.....lJJJ::o....J....~

60

0+0-----""T

60-----...,loo,...-------u.----m-------I-,sxl

KILOMETERS

Figure/21.3. Current Meter Station 37 (-22m):Progressive Vector Diagram (PVD).

60

.1

I II MWJI' 1f'£C'1lUl.IIIII

DEPTH 22.0 METERS.

PER100 (tOJRS)IlIJ 10

.1fREQl£NCY (CYCLES/tOJR)

.1~

Irl

~u~o'~u

ul

+ u Sf"£C1lUl- y lftC1lUl

.1FRECl£NCY I CYCLES/HOUR)

SPECTRA Of CURRENT VELOCITY

PER I00 (toJRS)u}fDJt-__I....lIJ_---.--,-.IO_--i-------t

I IIIIII+I

ul

ROTmv SPECTRA.

IrI+----+----+r"""T"'"------------.-.........------t--_

I~T.O•.---t"'-..LLJ--+:---_--t::::--------:l:::----,-----lIWLj>---~

FREHNCY (CYClESItGJR)


61

·STATISTICS Of 73 SAN JUAN 37 LAT 48 45.14N LONG 122 58.34WDEPTH 120.0 METERS NUMBER Of OBSERVATIONS = 2400


MEAN VARIANCE ST-OEV SKEW KURT MAX MIN(CM/SEC) (CM/SECl2 (CM/SECl (CM/SEC) (CM/SEC)

S 32.36 578.41 24.05 .936 3.70 183.00 0.00U 6.71 354.26 18.82 -.233 4.51 95.38 -85.15V -1.19 1224.57 34.99 .462 3.59 104.86 -169.72

S =SPEEDU = EAST-WEST COMPONENT Of VELOCITY, EAST = POSITIVE UV = NORTH-SOUTH COMPONENT Of VELOCITY, NORTH = POSITIVE V

lID

100

(J)Z eo0-I-a: 80>0:::W(J) 40en0

ID

10 20 30 40 &0 80 '10 80 90 100 110 120 130 140 1&0 180 1'10 180 1., 2m

SPEED (CM/SEC)

2&D-r----------------------,.

211)

~8 1&0I-a:>f5100

~o&0

30 80 ., ~ ~ ~ m ~ m B _ _



62


n

\ ~ 1 A

"'IV VV l.JY V'J VII VJ \J V W ~ V\ ~ ~ V\f~ ~ ~ \ y ~

1110

~

I 50

-11103

llCT73

B 10 15


1110

0-

I! III

I 0

;10-1110

3 BllCT73

10 15


63


DEPTH 120.0 METERS.

N100 +-_--J-_-----L__.L...-_--'-_---'-__L...-_....L-_---'-_----'''-_-+

90

80

70

80

Cf)0::: 50I.LJ~

I.LJ:E:0-l 40.....lI::

SO

2D

10

0l00

E0 10 2D SO 40 50 80 70 80 90

KILOMETERS

Figure 22.3. Current Meter Station 37 (.120m):Progressive Vector Diagram (PVD).

64

DEP1li120.0 t£TERS.

PER100JtoJRS )IJIDJt-__1...0lI_--r-,.o__--.I.....-_--t.1.1

SPECTRA OF CURRENT VELOCITY

PERloo JtOJRS)lODD IOD 1

Ill" r----..;.,~--r-........._----_t

+ U II'EC11Ul- V ar£Cl1UI

.1FREI:l£NCY (CYClES/toJR)

~U10.1~OlU

.1FREQl£NCY (CYClES/t«IR)

ROTARY SPECTRR.

1'"t---......---+r-r----------t---,-_-----4--_

-0 -1FREQl£NCY (CYCLE5/t1JUR)

Figure 22.4. Current Meter Station 37 (-120m): Spectr~.

65

STATISTICS OF 73 SAN JUAN 26 LAT 48 40.51N LONG 122 42.52WDEPTH 5.0 METERS NUMBER OF OBSERVATIONS = 2400



SUV

50.8310.35-3.37

1081.50642.36

2904.00

32.8925.3453.89

1.029-.413

.629

4.01 187.00 0.003.53 79.80 -123.143.41 186.54 -134.97


8O-r----------------------"T

(1)60

~I-

§;4Oa:::w(I)

lD020

o..j:!..--r---r---r---r---r---r---r---r---r---r---r--,....J?~::j!C!=4JI!=~........___+o 10 20 !O 40 50 SO 70 80 90 100 110 120 l!O 140 150 160 1'70 180 190 200

SPEED (CM/SEC)

2SO-r-----------------------r

!O 60 90 ~ ~ ~ m ~ ~ D m ~


200

enz~150Ia:>f5100

~o50


66

HOURLY AVERAGES OF ,NORTH-SOUTH COMPONENTS OF CURRENT VELOCITYDEPTH 5.0 METERS.

IllD,-----------------------------"T

I 0+-++--+~+-tr-++-___H_/Ir_f+_+H++++_H_++H_+iH_+_++++~~_+_+

i -~

-lllD -'---...3-.....--5.------.----.---.-----.--.....10--.--.....---...-.....--1,...5--,...---,--.--+OCT73


IllD,-----------------------------..,..

i ~

~ Of-'tM''---\1f4Ti--tftrrJ--W'---l-r<t----tra...v--+f--tt-IrH-AiI"-it'1t--'drf'rH~t_t.:I~.....PI__w_'~.,......_+__t~

; -~

-lllD .1..--...-.....--.-------.----.---.-----.---,---.,.-------.--..,....--.,,..-...---.--..,....---,--,...--+3

OCT73

5 10 15


67


DEPTH 5.0 METERS.

N2OO+------.l....--------l'----------'--------+

1&0

~ 100W....WJ::o....J....~

60

o+0------50.----------.1OO------1......50-----~2OOE

KILOMETERS

Figure 23.3. Current Meter Station 26 (-5m):Progressive Vector Diagram (PVD). .

68

-----~--------- -- -

DEPTH 5.0 METERS.

PER100 (t«U51lJ«JIJr-__.....10D_-r-r"'---..I-----t.1,

,. EIDDY lftJ:IIIII• U 8I'ECllUl- 't lftC1lUI

SPECTRR Of CURRENT VELOC1TY

PER 100 (IOJRS)U;«JIJ_----i1OD--r-r11)---..1__---t01

u1

~uW~to'

5

+

• .1fREQUENCY (CYClES/HOUR) FREll£NCY (CYCL£SItIU')

ROTARY SPECTRA.

lr/ _-------+r~-------<------r-,.......-----___t

l~r.O;------<-l~L..-...:..L..-+;---...-1;::----+----.-:t;---~---..&J-:t----:t.FREll£NCY (CYa..ES~)


69

--- ------- -



MEAN VARIANCE ST-DEV(CM/SEC) (CM/SEC)2 (CM/SEC)

SUV

47.3410.021.28

1027.22485.09

2680.90

32.0522.0251.78

SKEW

1.047-.064

.528

KURT MAX MIN(CM/SEC) (CM/SEC)

3.92 175.00 0.002.93 86.87 -68.103.18 173.75 -114.17


110...---------------------.,.

(1)60Zo..........§E4O0::W

~0 20

o~_r__r_.....,...___r_~___y__,r_~_r;__r__r_.....,.......:..:,.I_&L...,__=:;;=_.;..._~

o 10 20 30 40 60 60 70 eo 90 100 110 120 130 140 150 160 170 180

SPEED (CM/SEC)

250,------------------------r200

(J)Z

8 150.....ex:>ffitOO(J)

~50

30 110 90 ~ ~ ~ m w ~ ~ ~ ~

DIRECTION (DEGREES. TN) .


70


1510Ii

11O..-----------------------:--~---"""T

EI 10

~ oi:-t-+-:--+--I~__t_=__t_II__:__i~:_+_I~f_t+++t++1f_+++H+__HH_+_tt++_hf+++ft__++....__++r-_+_t


110....-----------------------------,.

B10

I O~~~~~~¥_\f__1~~~~~r.t=_+t_""_t_t

-11O.J-_...-_._____,r----.--.......----r--r--r--.........-~___r-_r_-.....__...-_._____,r--_+, 5 10 15

OCT73


71


DEPTH 22.0 METERS.

N150+----------'----------''-----------+

100

50

O+O-------50-r----------,l00.-----------+lfJIJE

KILOMETERS


72

[EpTtt 22.0 I£TERS.

PER100 (tOJRS)iJfm;:..__lIIl+-_-.-..;l;..D__........1__~.1

SPECTRA IF CURRENT VELOCITY

PER100 OOJRS)U}fm_--l....IIl-----r--...1O.....------.....

1

+ U ftC1'MIl- y IftC1lUl

iff iff

FREQl£NCY (CYCLES/IOJR)

~

~~lD'U

111

FREllENCY (CYClES/tOJR)

ROTAn SPECTRA.

IIIr-------+r---r-------+----+-~__yo__........------""""1'

iff

III

l~':/:;O~-~-lr-----+:-----t:-----+------2:,---------",...L-........---:r----:-lFREIU:NCY (CYCLES/tOJR J


73




S 43.62 846.05 29.09 .880 3.22 150.00 2.00U 2.74 1556.75 39.46 -.146 3.00 1DB •98 -122. 18V 3.36 1172.81 34.25 .578 3.89 132.00 -103.04


100~-------------------....

CJ)Z8 80.a:>ffi40CJ)IDo

20

oi'--~--r-.--~~..........-....--~--r----r-yY...JJ,-!!.---,:.:JLC....,o-""'l---+o 10 20 30 40 &0 80 70 80 !lO 100 110 120 130 140 lSI 160

SPEED (CM/SEC)

1&O~------------------- ....

~100o.....a:>0:::ILl

~ &0o

80 ~ ~ ~ ~ M ~ m ~ ~ _DIRECTION (DEGREES. TN) .


74

HOURLY RVERRGES' OF NORTH-SOUTH COMPONENTS OF CURRENT VELOCITYDEPTH 77.0 METERS.

UD,----------------------------------r

i m

I 0 tt++-+--T--+-+-H-++-:-+-++t-++d+f-++t+++-++++-+tt-+-t+++-+t\-+-ttt-~:-t-t

1--3

acT13

6 10 16


110..---------------------------------.-

I •I 0 ofI-+-I'H-+-Pf-++-+-¥----I---f-¥-\-Ht+-f-H+t+f++++t-H-+tt-1I--H;f-+-f-\f-++¥-+-ttJL....t+-M'-+-t

,lET73


75


DEPTH 77.0 METERS.

N"IO+---.........-----'------'"---L...---...&...---.........---+

10

60

40

CI)crILl •~

ILlz:: 300~-X

2D

10

1060O+-----.-----r-----r---.------~--""T'""'---+o W 2D 30 40

KILOMETERS


76

.1

DErTH 77.0 r£TERS.

IOlID UIllPERIOOJt«dS) 1If/'r-----.--r-------t

SPECTRA rJF ae£NT VELOCITY

UIllPERIOO JtOJRS) I .11~------.............---+------t

I I

: t + U IP'ECIIIIl- y IP!ImUl

fRElI£NCY (CYCLES/tOJR J

ROTARY SPECTRA.

1(/1---+---+r--r--+---+---+--r--I---------1

I'"

lD~t.:a:----t- ........--4;----t;;---+--------,r---t-'-:...:....K~r__-____:iFRElIENCY (CYCl..ESItIXMJ

Figure 25.4. Current Meter Station 26 {-77m}: Spectra.

77 wa..-

STD and current meter observations in the north San Juan ...

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