Temperature, salinity, nutrients profiles and other data from ROBERT D. CONRAD in the SW Atlantic from 1987-03-17 to 1987-04-19 (NCEI Accession 8800203)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: January 27, 2026 | Last Modified: 2023-02-13T00:00:00.000+00:00

This dataset includes high-resolution CTD/STD, ocean station, selected depth bathythermograph (SBT) data from R/V ROBERT D. CONRAD in the South Atlantic Ocean from 1987-03-17 to 1987-04-19. Data has been processed by NODC to the NODC standard High-Resolution CTD/STD (F022), Ocean Station (C100), and Selected Depth Bathythermograph (SBT) (C125) formats. The Oceanographic Station Data (C100) format contains physical-chemical oceanographic data recorded at discrete depth levels. Most of the observations were made using multi-bottle Nansen casts or other types of water samplers. A small amount (about 5 percent) were obtained using electronic CTD (conductivity-temperature-depth) or STD (salinity-temperature-depth) recorders. The CTD/STD data were reported to NODC at depth levels equivalent to Nansen cast data, however, and have been processed and stored the same as the Nansen data. Cruise information (e.g., ship, country, institution), position, date, and time, and reported for each station. The principal measured parameters and temperature and salinity, but dissolved oxygen, phosphate, total phosphorus, silicate, nitrate, nitrite, and pH may be reported. Meteorological conditions at the time of the cast (e.g., air temperature and pressure, wind, waves) may also be reported, as well as auxiliary data such as water color (Forel-Ule scale), water transparency (Secchi disk depth), and depth to bottom. Values of density (sigma-t) sound velocity, and dynamic depth anomaly are computed from measured parameters. Each station contains the measurements taken at the observed depth levels, but also includes data values interpolated to a set of standard depth levels. The UBT (C125) format contains temperature-depth profile data obtained using expendable bathythermograph (XBT) instruments. Cruise information, position, date and time were reported for each observation. The data records are comprised of pairs of temperature-depth values. Depths are selected by the originator - usually at standard horizons or some fixed interval. Standard XBTs can obtain profiles to depths of either 450 or 760 m. Special instruments permitted measurements to be obtained to 1830 m. The F022 format contains high-resolution data collected using CTD (conductivity-temperature-depth) and STD (salinity-temperature-depth) instruments. As they are lowered and raised in the oceans, these electronic devices provide nearly continuous profiles of temperature, salinity, and other parameters. Data values may be subject to averaging or filtering or obtained by interpolation and may be reported at depth intervals as fine as 1m. Cruise and instrument information, position, date, time and sampling interval are reported for each station. Environmental data at the time of the cast (meteorological and sea surface conditions) may also be reported. The data record comprises values of temperature, salinity or conductivity, density (computed sigma-t), and possibly dissolved oxygen or transmissivity at specified depth or pressure levels. Data may be reported at either equally or unequally spaced depth or pressure intervals. A text record is available for comments.

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description	This dataset includes high-resolution CTD/STD, ocean station, selected depth bathythermograph (SBT) data from R/V ROBERT D. CONRAD in the South Atlantic Ocean from 1987-03-17 to 1987-04-19. Data has been processed by NODC to the NODC standard High-Resolution CTD/STD (F022), Ocean Station (C100), and Selected Depth Bathythermograph (SBT) (C125) formats. The Oceanographic Station Data (C100) format contains physical-chemical oceanographic data recorded at discrete depth levels. Most of the observations were made using multi-bottle Nansen casts or other types of water samplers. A small amount (about 5 percent) were obtained using electronic CTD (conductivity-temperature-depth) or STD (salinity-temperature-depth) recorders. The CTD/STD data were reported to NODC at depth levels equivalent to Nansen cast data, however, and have been processed and stored the same as the Nansen data. Cruise information (e.g., ship, country, institution), position, date, and time, and reported for each station. The principal measured parameters and temperature and salinity, but dissolved oxygen, phosphate, total phosphorus, silicate, nitrate, nitrite, and pH may be reported. Meteorological conditions at the time of the cast (e.g., air temperature and pressure, wind, waves) may also be reported, as well as auxiliary data such as water color (Forel-Ule scale), water transparency (Secchi disk depth), and depth to bottom. Values of density (sigma-t) sound velocity, and dynamic depth anomaly are computed from measured parameters. Each station contains the measurements taken at the observed depth levels, but also includes data values interpolated to a set of standard depth levels. The UBT (C125) format contains temperature-depth profile data obtained using expendable bathythermograph (XBT) instruments. Cruise information, position, date and time were reported for each observation. The data records are comprised of pairs of temperature-depth values. Depths are selected by the originator - usually at standard horizons or some fixed interval. Standard XBTs can obtain profiles to depths of either 450 or 760 m. Special instruments permitted measurements to be obtained to 1830 m. The F022 format contains high-resolution data collected using CTD (conductivity-temperature-depth) and STD (salinity-temperature-depth) instruments. As they are lowered and raised in the oceans, these electronic devices provide nearly continuous profiles of temperature, salinity, and other parameters. Data values may be subject to averaging or filtering or obtained by interpolation and may be reported at depth intervals as fine as 1m. Cruise and instrument information, position, date, time and sampling interval are reported for each station. Environmental data at the time of the cast (meteorological and sea surface conditions) may also be reported. The data record comprises values of temperature, salinity or conductivity, density (computed sigma-t), and possibly dissolved oxygen or transmissivity at specified depth or pressure levels. Data may be reported at either equally or unequally spaced depth or pressure intervals. A text record is available for comments.
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identifier	gov.noaa.nodc:8800203
issued	1988-01-01T00:00:00.000+00:00
keyword	[ "8800203", "AIR TEMPERATURE - DRY BULB", "AIR TEMPERATURE - WET BULB", "BAROMETRIC PRESSURE", "cloud amount/frequency", "cloud type", "CONDUCTIVITY", "DISSOLVED OXYGEN", "DYNAMIC DEPTH ANOMALY", "HYDROSTATIC PRESSURE", "NITRATE", "OXYGEN", "pH", "phosphate", "SALINITY", "SEA STATE", "Secchi depth", "SIGMA-T", "silicate", "SOUND VELOCITY", "TOTAL PHOSPHORUS", "TRANSMISSIVITY", "VISIBILITY", "WATER COLOR", "water depth", "WATER TEMPERATURE", "WAVE HEIGHT", "WAVE PERIOD", "WEATHER", "WIND DIRECTION", "WIND FORCE", "WIND SPEED", "ZOOPLANKTON BIOMASS", "bathythermograph - BT", "bathythermograph - XBT", "bottle", "CTD", "meteorological sensor", "Secchi disk", "transmissometer", "physical", "profile", "R/V ROBERT D. CONRAD", "Texas A&M University", "Texas A&M University", "ABYSSAL BOUNDARY CURRENT STUDIES (ABCS)", "South Atlantic Ocean", "oceanography", "DOC/NOAA/NESDIS/NODC > National Oceanographic Data Center, NESDIS, NOAA, U.S. Department of Commerce", "EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE", "EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > SURFACE TEMPERATURE > AIR TEMPERATURE", "EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS > WIND DIRECTION", "EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS > WIND SPEED", "EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD PROPERTIES > CLOUD FREQUENCY", "EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD TYPES", "EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > AQUATIC ECOSYSTEMS > PLANKTON > ZOOPLANKTON", "EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > WATER DEPTH", "EARTH SCIENCE > OCEANS > OCEAN ACOUSTICS > ACOUSTIC VELOCITY", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRATE", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PH", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PHOSPHATE", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > SILICATE", "EARTH SCIENCE > OCEANS > OCEAN OPTICS", "EARTH SCIENCE > OCEANS > OCEAN OPTICS > ATTENUATION/TRANSMISSION", "EARTH SCIENCE > OCEANS > OCEAN OPTICS > OCEAN COLOR", "EARTH SCIENCE > OCEANS > OCEAN OPTICS > SECCHI DEPTH", "EARTH SCIENCE > OCEANS > OCEAN PRESSURE > WATER PRESSURE", "EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE", "EARTH SCIENCE > OCEANS > OCEAN WAVES > SEA STATE", "EARTH SCIENCE > OCEANS > OCEAN WAVES > WAVE HEIGHT", "EARTH SCIENCE > OCEANS > OCEAN WAVES > WAVE PERIOD", "EARTH SCIENCE > OCEANS > SALINITY/DENSITY > CONDUCTIVITY", "EARTH SCIENCE > OCEANS > SALINITY/DENSITY > DENSITY", "EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY", "BATHYTHERMOGRAPHS", "CTD > Conductivity, Temperature, Depth", "SECCHI DISKS > SECCHI DISKS", "TRANSMISSOMETERS", "XBT > Expendable Bathythermographs", "ROBERT D. CONRAD (call sign: WHBA, ICES code: 31RD, 1962-1989)", "OCEAN > ATLANTIC OCEAN > SOUTH ATLANTIC OCEAN" ]
landingPage	https://www.ncei.noaa.gov/contact
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license	https://creativecommons.org/publicdomain/zero/1.0/
modified	2023-02-13T00:00:00.000+00:00
publisher	{ "name": "NOAA National Centers for Environmental Information", "@type": "org:Organization" }
references	[ "https://www.ncei.noaa.gov/archive/accession/0189890" ]
rights	otherRestrictions
spatial	-35.09,-49.64,-55.66,-36.71
temporal	1987-03-17T00:00:00+00:00/1987-04-19T00:00:00+00:00
title	Temperature, salinity, nutrients profiles and other data from ROBERT D. CONRAD in the SW Atlantic from 1987-03-17 to 1987-04-19 (NCEI Accession 8800203)

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