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Data from the U.S. Joint Global Ocean Flux Study (JGOFS) Equatorial Pacific (EqPac) Process Study along 140°W during 1992

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: October 04, 2025 | Last Modified: 2021-09-05T00:00:00.000+00:00
This dataset includes physical, chemical, and biological data, including plankton abundance, biomass, biovolume, counts, population estimates, primary production, carotenoids, phaeopigments, fatty acids, chlorophylls, aggregates and particulate matter, "marine snow", thymidine and leucine uptake, nitrate and saturated ammonium uptake rates, oxygen production, irradiance, Lu683, PAR, Thorium-234 activity, water temperature, currents and salinity, and other data. The U.S. Joint Global Ocean Flux Study (JGOFS) Equatorial Pacific (EqPac) process study was conducted along 140°W during the calendar year 1992. Four process cruises took place, with a fifth benthic cruise and sediment trap legs adding to the overall study.

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9700034 9700039 9700048 9700049 9700050 9700055 9700056 9700058 9700059 9700062 9700068 9700083 9700085 9700086 9700087 9700088 9700106 9700107 9700108 9700109 9700110 9700112 9700178 9700180 9700194 9700195 9700196 9700197 AMMONIUM (NH4) Attenuation/Transmission bacteria BACTERIA - BACTERIAL DENSITY BACTERIA - HETEROTROPHIC BEAM ATTENUATION COEFFICIENT BIOMASS BIOMASS - PLANKTON CARBON ASSIMILATION CELL COUNTS CHLOROPHYLL CHLOROPHYLL A CHLOROPHYLL A CONCENTRATION CHLOROPHYLL B CHLOROPHYLL C CONDUCTIVITY CURRENT DIRECTION CURRENT SPEED CURRENT SPEED - EAST/WEST COMPONENT (U) CURRENT SPEED - NORTH/SOUTH COMPONENT (V) DEPTH - OBSERVATION DEPTH - SENSOR diatom DOWNWELLING RADIANCE Eukaryote FLUORESCENCE fucoxanthin HYDROSTATIC PRESSURE irradiance leucine LIGHT - PERCENT LIGHT TRANSMISSION MICROPLANKTON NITRATE nitrate + nitrite content (concentration) NITRITE NITROGEN - PARTICULATE OXYGEN PARTICULATE MATTER - DRY WEIGHT PARTICULATE ORGANIC CARBON PHAEOPIGMENT CONCENTRATION PHAEOPIGMENTS PHOSPHATE - TOTAL PHOTOSYNTHETIC ACTIVE RADIATION (PAR) PHYTOPLANKTON PHYTOPLANKTON - DRY WEIGHT PHYTOPLANKTON - WET WEIGHT PHYTOPLANKTON BIOMASS PIGMENTS PRIMARY PRODUCTIVITY Prochlorococcus SALINITY SEDIMENTS silicate species abundance surface irradiance suspended solids Synechococcus thorium isotope thymidine UPWELLING IRRADIANCE UPWELLING RADIANCE UREA WATER DENSITY WATER TEMPERATURE ZOOPLANKTON ABUNDANCE ZOOPLANKTON BIOMASS ZOOPLANKTON SPECIES IDENTITIES ZOOPLANKTON SPECIES NUMBER PER SAMPLE bottle camera chromatograph CTD current meter Flow Cytometer fluorescence microscope fluorometer laboratory analysis mass spectrometer Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS) net - plankton net net - zooplankton net Niskin bottle pump casts sediment sampler - corer sediment sampler - grab transmissometer trap trap - sediment video - LAPS - autonomous video camera visual analysis biological chemical continuous current measurements optical physical profile pump cast time series tows tows - plankton tows FIXED PLATFORM OF UNITED STATES R/V THOMAS G. THOMPSON Duke University Gulf Coast Research Laboratory Harvard University Horn Point Laboratory Oregon State University, College of Earth, Ocean, and Atmospheric Sciences Skidaway Institute of Oceanography State University of New York at Stony Brook Texas A&M University University of California San Diego University of Connecticut, Marine Research Laboratory University of Delaware, College of Earth, Ocean, and Environment, School of Marine Science and Policy University of Georgia, School of Marine Programs University of Hawai'i at Mānoa University of Rhode Island, Graduate School of Oceanography University of Southern California University of Washington US NASA/Jet Propulsion Laboratory Virginia Institute of Marine Science Woods Hole Oceanographic Institution Duke University Gulf Coast Research Laboratory Harvard University Horn Point Laboratory Oregon State University, College of Earth, Ocean, and Atmospheric Sciences Skidaway Institute of Oceanography State University of New York at Stony Brook Texas A&M University University of California San Diego University of Connecticut, Marine Research Laboratory University of Delaware, College of Earth, Ocean, and Environment, School of Marine Science and Policy University of Georgia, School of Marine Programs University of Hawai'i at Mānoa University of Rhode Island, Graduate School of Oceanography University of Southern California University of Washington US NASA/Jet Propulsion Laboratory Virginia Institute of Marine Science Woods Hole Oceanographic Institution JOINT GLOBAL OCEAN FLUX STUDY/EQUATORIAL PACIFIC BASIN STUDY (JGOFS/EQPAC) Equatorial Pacific Ocean North Pacific Ocean South Pacific Ocean TOGA Area - Pacific (30 N to 30 S) oceanography CWM/VIMS > Virginia Institute of Marine Science, College of William and Mary DOC/NOAA/NESDIS/NODC > National Oceanographic Data Center, NESDIS, NOAA, U.S. Department of Commerce OR-STATE/CEOAS > College of Earth, Ocean, and Atmospheric Sciences, Oregon State University UGA/SkIO > Skidaway Institute of Oceanography, University of Georgia UMCES/HPL > Horns Point Laboratory, University of Maryland Center for Environmental Science URI/GSO > Graduate School of Oceanography, University of Rhode Island WHOI > WOODS HOLE OCEANOGRAPHIC INSTITUTION TTN007 TTN008 TTN011 TTN012 TTN013 JGOFS > Joint Global Ocean Flux Study, IGBP EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > BACTERIA/ARCHAEA EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > BACTERIA/ARCHAEA > CYANOBACTERIA (BLUE-GREEN ALGAE) EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PLANTS > MICROALGAE > DIATOMS EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PROTISTS > PLANKTON EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PROTISTS > PLANKTON > PHYTOPLANKTON EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > PRIMARY PRODUCTION EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > AQUATIC ECOSYSTEMS > PLANKTON EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > AQUATIC ECOSYSTEMS > PLANKTON > ZOOPLANKTON EARTH SCIENCE > BIOSPHERE > VEGETATION > BIOMASS EARTH SCIENCE > OCEANS > MARINE SEDIMENTS EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > AMMONIA EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRATE EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRITE EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITROGEN EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ORGANIC CARBON EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PHOSPHATE EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PIGMENTS EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PIGMENTS > CHLOROPHYLL EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > SILICATE EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > SUSPENDED SOLIDS EARTH SCIENCE > OCEANS > OCEAN CIRCULATION > OCEAN CURRENTS EARTH SCIENCE > OCEANS > OCEAN OPTICS EARTH SCIENCE > OCEANS > OCEAN OPTICS > ATTENUATION/TRANSMISSION EARTH SCIENCE > OCEANS > OCEAN OPTICS > FLUORESCENCE EARTH SCIENCE > OCEANS > OCEAN OPTICS > IRRADIANCE EARTH SCIENCE > OCEANS > OCEAN OPTICS > PHOTOSYNTHETICALLY ACTIVE RADIATION EARTH SCIENCE > OCEANS > OCEAN PRESSURE > WATER PRESSURE EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE EARTH SCIENCE > OCEANS > SALINITY/DENSITY > CONDUCTIVITY EARTH SCIENCE > OCEANS > SALINITY/DENSITY > DENSITY EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY CAMERA > CAMERA CTD > Conductivity, Temperature, Depth CURRENT METERS FLOW CYTOMETRY FLUORESCENCE MICROSCOPY > FLUORESCENCE MICROSCOPY FLUOROMETERS > FLUOROMETERS GAS CHROMATOGRAPHS > GAS CHROMATOGRAPHS GRAB SAMPLERS MASS SPECTROMETERS > MASS SPECTROMETERS MOCNESS > MOCNESS Plankton Net NISKIN BOTTLES PLANKTON NETS SEDIMENT CORERS > SEDIMENT CORERS TRANSMISSOMETERS TRAPS > TRAPS VIDEO CAMERA > VIDEO CAMERA FIXED OBSERVATION STATIONS > FIXED OBSERVATION STATIONS THOMAS G. THOMPSON (call sign: KTDQ, ICES code: 3250, 1991-) OCEAN > PACIFIC OCEAN OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN OCEAN > PACIFIC OCEAN > SOUTH PACIFIC OCEAN

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