Hydrographic data from the Pegasus in the Sea of Cortes area cruise (PESCAR-01), 21 April - 8 May 1992

64 Pages·1992·2.3 MB·en_US

by  Rago, Thomas A.;Mitchell, Ross P.;Navarro-Olache, Luis Felipe.;Garfield, Newell.;Collins, Curtis A.

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jHydrographic Data from the Pegasuain the
-
~~Sea~ oT Cortes Area Cruise (PESCAR-0
1
21 April - 8 May 1992
by
Thomas A. Ragq^ C^-\
LT Ross Mitchell, USN
Luis Felipe Navarro-Olache
Newell Garfield
Curtis A. Collins
Approved for Public Release; Distribution Unlimited
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Monterey, CA 93943
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Reproduction of all or part of this report is authorized.
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ITLE (include Security Classification) Hydrographic Data from the Pegasus in the Sea of Cortes Area
:uise (PESCAR-01), 21 April - 8 May 1992. (Unclassified)
'ERSONAL author(S) Thomas A. Rago, LT Ross Mitchell ,USN, Luis Felipe Navarro-Olache,
swell Garfield, and Curtis A. Collins.
TYPE OF REPORT 13b TIME COVERED 14. DATE OF REPORT (Year,Morth, Day) 15 PAGE COUNT
chnical FROM _,9_2TOMav 92 92-12-18 51
UPPLEMENTARY notation Joint project between the U.S. Navy, the Mexican Navy, and the
Universidad Autonoma de Baja California (UABC)
COSATI CODES 18 SUBJECT TERMS (Continue on reverse if necessary and identify by block number)
FIELD GROUP SUB-GROUP U.S. Navy, Mexican Navy, Universidad Autonoma de Baja
California, Sea of Cortes, Gulf of California, CTD data,
hydrographic data, currents.
ABSTRACT (Continue on reverse if necessary and identify by block number)
lis data report presents hydrographic (CTD) data from a joint U.S. /Mexican cruise aboard
le USNS DeSteiguer across the mouth of the Gulf of California during 21 April - 8 May 1992
total of 17 CTD casts were made along a transection approximately from Cabo San Lucas,
ija California, Mexico, to El Dorado, Sinaloa, Mexico. All but two CTD casts were made
within 50 meters of the bottom. The data are presented as vertical sections and as
)
iterfall plots.
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3 UNCLASSIFIED/UNLIMITED SAME AS RPT DTIC USERS Unclassified
NAME OF RESPONSIBLE INDIVIDUAL 22b TELEPHONE (Include AreaCode) 22c OFFICE SYMBOL
urtis A. Collins 408-656-2673 OC/Co
:ORM 1473, 84 mar 83 APRedition may beused until exhausted SECURITY CLASSIFICATION OF THIS PAGE
Allothereditionsare obsolete
OU.S Government Printing Office 1986-607-047

Hydrographic Data from the Pegasus in the
Sea of Cortes Area Cruise (PESCAR-01)
21 April - 8 May 1992
by
Thomas A. Rago
Lt. Ross Mitchell, USN
Luis Felipe Navarro-Olache
Newell Garfield
and
Curtis A. Collins
Chief Scientist:
Curtis A. Collins (Leg 1)
Newell Garfield (Leg 2)

TABLE OF CONTENTS
Page
List of Tables ii
. .
List of Figures iii
Introduction
1
Hydrographic Data Acquisition and Calibration
4
Hydrographic Data Processing
7
Data Presentation 7
Acknowledgements
8
Appendix A - CTD Data Listings 22
References 49
Initial Distribution List 50
LIST OF TABLES
Table Caption Page
1. List of CTD stations occupied by the USNS 3
DeSteiquer during the PESCAR-01 cruise of
21 April-8 May 1992. Date, time, station
number, location, water depth at the
station, and wind speed and direction are
given.
2. List of CTD salinities (calculated from the 5
corrected pressure, temperature, and conductivity
readings) water sample salinities (measured by
,
the AGE Minisal salinometer of samples collected
at the same depths from which the CTD salinities
were measured) and the differences between the
,
two sets of salinities.
3. Data listings at selected pressures of temperature 22
C) salinity (psu) density anomaly (kg m'
( , , ) ,
specific volume anomaly (5), summation of dynamic
height (SAD) and spiciness (n) for CTD stations
,
occupied during the PESCAR-01 cruise of 21 April-
8 May 1992 aboard the USNS DeSteiquer
.
li
. ,
LIST OF FIGURES
Figure Caption Page
1. CTD and Pegasus station grid and numbers for the 2
PESCAR-01 cruise of 21 April-8 May 1992 aboard
the USNS DeSteiguer
.
2. Vertical sections of a) temperature, contoured at 9
1.0°C intervals, b) salinity, contoured at 0.05 psu
intervals, c) density anomaly, contoured at
0.5 kg m* intervals, and d) spiciness (tt)
,
contoured at 0.5 intervals, from to 3000 dbar for
the CTD transection of the PESCAR-01 cruise,
21 April-8 May 1992. CTD station locations are
indicated by labelled arrows across the tops of each
figure.
3. Vertical sections of a) temperature, contoured at 13
1 0°C intervals, b) salinity, contoured at 0.1 psu
.
intervals, c) density anomaly, contoured at
0.2 kg m" intervals, and d) spiciness (tt)
,
contoured at 0.5 intervals, from to 500 dbar for
the CTD transection of the PESCAR-01 cruise,
21 April-8 May 1992. CTD station locations are
indicated by labelled arrows across the tops of each
figure
4. Waterfall plots from to 3000 m of a) temperature 17
(°C) b) salinity (psu) c) density anomaly (kg m
, , )
and d) spiciness (n) for the CTD transection of the
PESCAR-01 cruise, 21 April-8 May 1992.
5. T/S diagram which includes selected data from all 21
CTD stations completed during the PESCAR-01 cruise
of 21 April-8 May 1992 aboard the USNS DeSteiguer
.
The data included in this diagram are listed in
Appendix A.
in