Foram species abundances from MOCNESS tows from R/V Thomas G. Thompson cruises TT007, TT011 in the Equatorial Pacific in 1992 during the U.S. JGOFS Equatorial Pacific (EqPac) project

Website: https://www.bco-dmo.org/dataset/2669
Version: 27 July 1998
Version Date: 1998-07-27

Project
» U.S. JGOFS Equatorial Pacific (EqPac)

Program
» U.S. Joint Global Ocean Flux Study (U.S. JGOFS)
ContributorsAffiliationRole
Watkins, JamesOregon State University (OSU-PISCO)Principal Investigator
Chandler, Cynthia L.Woods Hole Oceanographic Institution (WHOI BCO-DMO)BCO-DMO Data Manager


Dataset Description

Foram species abundances from MOCNESS tows


Methods & Sampling

See Platform deployments for cruise specific documentation


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Parameters

ParameterDescriptionUnits
event

event number

sta

station number

tow

MOCNESS tow #

depth_begin

beginning depth of depth interval

meters
depth_end

ending depth of depth interval

meters
vol_filt

volume of water filtered

m^3
raw_live

total # alive (protoplasm full) counted

raw_dead

total # dead (lack protoplasm) counted

ss_live

live standing stock

live individuals per m^3
ss_dead

dead standing stock

dead individuals per m^3
o_univ

Orbulina universa

live individuals per m^3
g_cnglb

Globigerinoides conglobatus

live individuals per m^3
g_ruber

Globigerinoides ruber

live individuals per m^3
g_ten

Globoturborotalita tenellus

live individuals per m^3
g_sacc

Globigerinoides sacculifer

live individuals per m^3
g_saccw

Globigerinoides sacculifer w/ terminal chamber

live individuals per m^3
s_dehis

Sphaeroidinella dehiscens

live individuals per m^3
g_adam

Globigerinella adamsi

live individuals per m^3
g_aequi

Globigerinella aequilateralis

live individuals per m^3
g_cal

Globigerinella calida

live individuals per m^3
g_bull

Globigerina bulloides

live individuals per m^3
g_falc

Globigerina falconensis

live individuals per m^3
g_dig

Globigerinella digitata

live individuals per m^3
g_rubes

Globoturborotalita rubescens

live individuals per m^3
t_hum

Turborotalita humilis

live individuals per m^3
n_pac

Neogloboquadrina pachyderma

live individuals per m^3
n_dut

Neogloboquadrina dutertrei

live individuals per m^3
g_cnglm

Globoquadrina conglomerata

live individuals per m^3
g_hex

Globorotalioides hexagona

live individuals per m^3
p_obliq

Pulleniatina obliquiloculata

live individuals per m^3
g_scit

Globorotalia scitula

live individuals per m^3
g_men

Globorotalia menardii

live individuals per m^3
g_tum

Globorotalia tumida

live individuals per m^3
c_nitid

Candeina nitida

live individuals per m^3
g_glut

Globigerinita glutinata

live individuals per m^3
t_pum

Turborotalita pumilio

live individuals per m^3
h_pelag

Hastigerina pelagica

live individuals per m^3
forams_other

unidentified individuals

live individuals per m^3


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Instruments

Dataset-specific Instrument Name
MOCNESS
Generic Instrument Name
MOCNESS
Generic Instrument Description
The Multiple Opening/Closing Net and Environmental Sensing System or MOCNESS is a family of net systems based on the Tucker Trawl principle. There are currently 8 different sizes of MOCNESS in existence which are designed for capture of different size ranges of zooplankton and micro-nekton Each system is designated according to the size of the net mouth opening and in two cases, the number of nets it carries. The original MOCNESS (Wiebe et al, 1976) was a redesigned and improved version of a system described by Frost and McCrone (1974).(from MOCNESS manual) This designation is used when the specific type of MOCNESS (number and size of nets) was not specified by the contributing investigator.


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Deployments

TT007

Website
Platform
R/V Thomas G. Thompson
Start Date
1992-01-30
End Date
1992-03-13
Description
Purpose: Spring Survey Cruise; 12°N-12°S at 140°W TT007 was one of five cruises conducted in 1992 in support of the U.S. Equatorial Pacific (EqPac) Process Study. The five EqPac cruises aboard R/V Thomas G. Thompson included two repeat meridional sections (12°N - 12°S), 2 equatorial surveys, and a benthic survey (all at 140° W). The scientific objectives of this study were to observe the processes in the Equatorial Pacific controlling the fluxes of carbon and related elements between the atmosphere, euphotic zone, and deep ocean. As luck would have it, the survey window coincided with an El Nino event. A bonus for the research team.

TT011

Website
Platform
R/V Thomas G. Thompson
Start Date
1992-08-05
End Date
1992-09-18
Description
Purpose: Fall Survey; 12°N-12°S at 140°W TT011 was one of five cruises conducted in 1992 in support of the U.S. Equatorial Pacific (EqPac) Process Study. The five EqPac cruises aboard R/V Thomas G. Thompson included two repeat meridional sections (12°N - 12°S), 2 equatorial surveys, and a benthic survey (all at 140° W). The scientific objectives of this study were to observe the processes in the Equatorial Pacific controlling the fluxes of carbon and related elements between the atmosphere, euphotic zone, and deep ocean. As luck would have it, the survey window coincided with an El Nino event. A bonus for the research team.


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Project Information

U.S. JGOFS Equatorial Pacific (EqPac)


Coverage: Equatorial Pacific


The U.S. EqPac process study consisted of repeat meridional sections (12°N -12°S) across the equator in the central and eastern equatorial Pacific from 95°W to 170°W during 1992. The major scientific program was focused at 140° W consisting of two meridional surveys, two equatorial surveys, and a benthic survey aboard the R/V Thomas Thompson. Long-term deployments of current meter and sediment trap arrays augmented the survey cruises. NOAA conducted boreal spring and fall sections east and west of 140°W from the R/V Baldridge and R/V Discoverer. Meteorological and sea surface observations were obtained from NOAA's in place TOGA-TAO buoy network.

The scientific objectives of this study were to determine the fluxes of carbon and related elements, and the processes controlling these fluxes between the Equatorial Pacific euphotic zone and the atmosphere and deep ocean. A broad overview of the program at the 140°W site is given by Murray et al. (Oceanography, 5: 134-142, 1992). A full description of the Equatorial Pacific Process Study, including the international context and the scientific results, appears in a series of Deep-Sea Research Part II special volumes:

Topical Studies in Oceanography, A U.S. JGOFS Process Study in the Equatorial Pacific (1995), Deep-Sea Research Part II, Volume 42, No. 2/3.

Topical Studies in Oceanography, A U.S. JGOFS Process Study in the Equatorial Pacific. Part 2 (1996), Deep-Sea Research Part II, Volume 43, No. 4/6.

Topical Studies in Oceanography, A U.S. JGOFS Process Study in the Equatorial Pacific (1997), Deep-Sea Research Part II, Volume 44, No. 9/10.

Topical Studies in Oceanography, The Equatorial Pacific JGOFS Synthesis (2002), Deep-Sea Research Part II, Volume 49, Nos. 13/14.



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Program Information

U.S. Joint Global Ocean Flux Study (U.S. JGOFS)


Coverage: Global


The United States Joint Global Ocean Flux Study was a national component of international JGOFS and an integral part of global climate change research.

The U.S. launched the Joint Global Ocean Flux Study (JGOFS) in the late 1980s to study the ocean carbon cycle. An ambitious goal was set to understand the controls on the concentrations and fluxes of carbon and associated nutrients in the ocean. A new field of ocean biogeochemistry emerged with an emphasis on quality measurements of carbon system parameters and interdisciplinary field studies of the biological, chemical and physical process which control the ocean carbon cycle. As we studied ocean biogeochemistry, we learned that our simple views of carbon uptake and transport were severely limited, and a new "wave" of ocean science was born. U.S. JGOFS has been supported primarily by the U.S. National Science Foundation in collaboration with the National Oceanic and Atmospheric Administration, the National Aeronautics and Space Administration, the Department of Energy and the Office of Naval Research. U.S. JGOFS, ended in 2005 with the conclusion of the Synthesis and Modeling Project (SMP).



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