C-Vector derived three dimensional circulations in Farallones National Marine Sanctuary.

108 Pages·0.98 MB·en_US

by  Konstantinidis, Simon.;Chu, P. C.

DUDLE XNOX LIBRARY
NAVAL fOSTGRADUATE SCHOOl
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NAVAL POSTGRADUATE SCHOOL
Monterey, California
THESIS
VECTOR DERIVED THREE DIMENSIONAL
C-
CIRCULATIONS IN FARALLONES NATIONAL
MARINE SANCTUARY
by
Simon Konstantinidis
December, 1992
ThesisAdvisor: P. C. Chu
Approvedforpublic release; distribution is unlimited

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11 TITLE(IncludeSecurityClassification)
C-VECTOR DERIVED THREEDIMENSIONAL CIRCULATIONS INTHEFARALLONES NATIONAL MARINE SANCTUARY
UNCLASSIFIED
12.PERSONALAUTHOR(S) Simon Konstantinidis
13a.TYPEOFREPORT 13b. TIMECOVERED 1a, DATEOFREPORT(year, month,day) 15.PAGE COUNT
Master'sThesis From To December 1992 97
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TheviewsexpressedinthisthesisarethoseoftheauthoranddonotreflecttheofficialpolicyorpositionoftheDepartmentofDefenseorthe U.S.
Government.
17.COSATICODES 18.SU8JECTTERMS(continueonreverseifnecessaryandidentifybyblocknumber)
FIELD GROUP SUBGROUP C-Vectormethod, Pseudo-vorticityfieldsintheGulfof FarallonesNational Marine
Sanctuary
19 ABSTRACT(continueonreverseifnecessaryandidentifybyblocknumber)
Neglecting the ageostrophiccirculationisnotveryrealisticfortheoceancirculationincoastalwatersandparticularlyinregions withstrong
temperatureandsalinity gradientsliketheFarallonesNatinalMarine Sanctuary. The C-Vectormethodhasbeendevelopedto diagnose the
threedimensinal flow including ageostrophiccirculation. Thisthesisuses the C-Vectorconceptand data collected from the R/VPoint Sur in
thearea ofFarallones National Marine Sanctuary inorder todescribe and illustratethethreedimensionalpseudo-vorticity fieldsofthe
ageostrophic circulationandthetotal circulation (geostrophic and ageostrophic) ofthe region.
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Peter C. Chu 408 656 - 3257 Oc/Cu
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Approved for public release; distribution is unlimited.
C-Vector Derived Three Dimensional Circulations
in Farallones National Marine Sanctuary
by
Simon Konstantinidis
Lieutenant, Hellenic Navy
B.S., Hellenic Naval Academy
Submitted in partial fulfillment
ofthe requirements for the degree of
MASTER OF SCIENCE IN PHYSICAL OCEANOGRAPHY AND METEOROLOGY
from the
NAVAL POSTGRADUATE SCHOOL
December 1992
ABSTRACT
Neglecting the ageostrophic circulation is not very
realistic for ocean circulation in coastal waters and
particularly in regions with strong temperature and salinity
gradients like the Farallones National Marine Sanctuary. The
C-Vector method has been developed to diagnose the three
dimensional flow including ageostrophic circulation. This
thesis uses the C-Vector method and data collected from the
R/V Point Sur in the area of Farallones National Marine
Sanctuary in order to describe and illustrate the three
dimensional pseudo-vorticity fields of the ageostrophic
circulation and the total circulation (geostophic and
ageostrophic) of the region.
111
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TABLE OF CONTENTS
INTRODUCTION
I. 1
A. GULF OF THE FARALLONES NATIONAL MARINE
SANCTUARY
1
1. Geophysical Characteristics 1
2 Water Masses 3
Weather Conditions
3 7
B. GENERAL CLIMATOLOGICAL PICTURE 7
C. PURPOSE OF THE STUDY - CONTENTS 9
II. C-VECTOR CONCEPT AND TECHNIQUES 12
A. OBJECTIVE 12
B. THEORY 12
1. Meteorology 12
2. Physical Oceanography 14
3. Development of C-Vector equations (a
Diagnostic System) 16
4. Physical Significance of C-Vector 19
a. Direction of C-Vector 19
b. Relation between w and vertical vorticity
a
of C-Vector 19
III. DATA COLLECTION AND PROCESSING 23
IV