negom_n4l09s07 eng UTF8 dataset service Tuomo Saari TAMU +1 979-979-9799 400 Bizzell St. College Station TX 77843 USA tsaari@tamu.edu pointOfContact 2026-01-02 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) 4 column row vertical temporal "NEGOM CTD - n4l09s07.nc - 28.84N, 84.69W - 1998-11-17" 2026-01-02 creation gcoos5.geos.tamu.edu negom_n4l09s07 Marion Stoessel, Dr. Matthew K. Howard OCEAN.TAMU mstoessel@ocean.tamu.edu, mkhoward@tamu.edu http://ocean.tamu.edu//people/researchpersonnel/stosselmarion, https://ocean.tamu.edu//people/researchpersonnel/howardmatthewk information web browser Background Information Background information from the source information originator Worth D. Nowlin,Jr., Ann E. Jochens, Douglas Biggs, Norman L. Guinasso,Jr., Matthew K. Howard, M.C. Kennicutt II, Robert O. Reid wnowlin@tamu.edu, ajochens@tamu.edu, d-biggs@tamu.edu, guinasso@tamu.edu, mkhoward@tamu.edu, m-kennicutt@tamu.edu, contributor The Northeastern Gulf of Mexico Physical Oceanography Program (NEGOM) is supported by the Minerals Management Service (MMS) of the U.S. Department of the Interior. Through a contract between MMS and the Texas A&M Research Foundation, several components of the Texas A&M University System are conducting the Chemical Oceanography and Hydrography study of NEGOM (NEGOM-COH). This report covers activities from October 1997 through June 1998. Data were collected from hydrographic and acoustic Doppler current profiler (ADCP) surveys conducted in the Gulf of Mexico over the continental shelf and upper slope between the Mississippi delta and Tampa Bay in water depths of 10 to 1000 m. Additionally, historical and concurrent data from other programs in this region were collected. Two hydrographic/ADCP surveys, N1 and N2, were conducted with 94 and 98 hydrographic sampling stations and with 80 and 97 expendable bathythermograph stations on respective cruises. Each survey also included continuous ADCP measurements along the cruise track. At each hydrographic sampling station continuous profiles were made of conductivity, temperature, pressure, downwelling irradiance, fluorescence, and light transmission. Up to twelve water samples were taken at each station and analyzed for dissolved oxygen and six nutrients: nitrate, nitrite, phosphate, silicate, ammonium, and urea. At 51 stations on cruise N1 and 61 on N2, water samples were filtered and analyzed for phytoplankton pigments at the surface and from the chlorophyll maximum and the low light regime immediately below it. Pigments were determined using high performance liquid chromatography. At 60 stations on each cruise, water samples were filtered and analyzed for particulate matter concentrations at surface, middle, and bottom water depths and for particulate organic carbon concentrations at surface and bottom water depths. Bottle salinity was measured at every station on the first cruise and at the shallowest and deepest stations on each cross-shelf line on the second. The instrumentation as well as calibration and sampling procedures are described in this report. The collected data were subjected to stringent quality assurance/quality control procedures. Marion Stoessel, Dr. Matthew K. Howard OCEAN.TAMU mstoessel@ocean.tamu.edu, mkhoward@tamu.edu http://ocean.tamu.edu//people/researchpersonnel/stosselmarion, https://ocean.tamu.edu//people/researchpersonnel/howardmatthewk information web browser Background Information Background information from the source information pointOfContact acoustic active adcp and light transmission assurance available backscattering bathythermograph beam bird bottomdepth chemical conductivity control crs current currents data decent density descentRate doppler downwelling downwelling irradiance earth eastern egmex electrical expendable bathythermograph expendible fluorescence fluoresence gom gulf gulf of mexico hydrography identifier instrument instrument1 instrument2 irradiance mexico n4l09s0 northeastern ocean ocean.tamu oceanography oceans optical optical properties optics package par parv percent photon photosynthetic photosynthetically plus potential potentialTemperature practical pressure profile profiler properties quality radiance radiation rate relative salinity sbe sbe-911-plus science sea sea-bird seawater sigma sigma-t sigmat spherical study temperature total transmission velocity volts water xbt theme Earth Science > Oceans > Salinity/Density > Salinity Earth Science > Oceans > Salinity/Density > Density Earth Science > Oceans > Salinity/Density > Conductivity Earth Science > Oceans > Ocean Temperature > Water Temperature Earth Science > Oceans > Ocean Temperature > Potential Temperature Earth Science > Oceans > Ocean Pressure > Water Pressure Earth Science > Oceans > Ocean Optics > Radiance Earth Science > Oceans > Ocean Optics > Photosynthetically Active Radiation theme GCMD Science Keywords OCEAN.TAMU project time latitude longitude depth sea_water_pressure depth sea_water_temperature sea_water_potential_temperature sea_water_electrical_conductivity sea_water_practical_salinity sea_water_sigma_t package_decent_rate beam_transmission_in_sea_water downwelling_photosynthetic_photon_spherical_irradiance_in_sea_water downwelling_photosynthetic_photon_spherical_irradiance_in_sea_water relative_fluoresence relative_backscattering theme CF Standard Name Table v29 Unrestricted use and distribution OCEAN.TAMU largerWorkCitation project Unidata Common Data Model Profile largerWorkCitation project eng geoscientificInformation 1 -84.6935 -84.6935 28.8381 28.8381 seconds 1998-11-17T17:15:00Z 1998-11-17T17:15:00Z -43.5 -2.5 "NEGOM CTD - n4l09s07.nc - 28.84N, 84.69W - 1998-11-17" 2026-01-02 creation Marion Stoessel, Dr. Matthew K. Howard OCEAN.TAMU mstoessel@ocean.tamu.edu, mkhoward@tamu.edu http://ocean.tamu.edu//people/researchpersonnel/stosselmarion, https://ocean.tamu.edu//people/researchpersonnel/howardmatthewk information web browser Background Information Background information from the source information originator Worth D. Nowlin,Jr., Ann E. Jochens, Douglas Biggs, Norman L. Guinasso,Jr., Matthew K. Howard, M.C. Kennicutt II, Robert O. Reid wnowlin@tamu.edu, ajochens@tamu.edu, d-biggs@tamu.edu, guinasso@tamu.edu, mkhoward@tamu.edu, m-kennicutt@tamu.edu, contributor The Northeastern Gulf of Mexico Physical Oceanography Program (NEGOM) is supported by the Minerals Management Service (MMS) of the U.S. Department of the Interior. Through a contract between MMS and the Texas A&M Research Foundation, several components of the Texas A&M University System are conducting the Chemical Oceanography and Hydrography study of NEGOM (NEGOM-COH). This report covers activities from October 1997 through June 1998. Data were collected from hydrographic and acoustic Doppler current profiler (ADCP) surveys conducted in the Gulf of Mexico over the continental shelf and upper slope between the Mississippi delta and Tampa Bay in water depths of 10 to 1000 m. Additionally, historical and concurrent data from other programs in this region were collected. Two hydrographic/ADCP surveys, N1 and N2, were conducted with 94 and 98 hydrographic sampling stations and with 80 and 97 expendable bathythermograph stations on respective cruises. Each survey also included continuous ADCP measurements along the cruise track. At each hydrographic sampling station continuous profiles were made of conductivity, temperature, pressure, downwelling irradiance, fluorescence, and light transmission. Up to twelve water samples were taken at each station and analyzed for dissolved oxygen and six nutrients: nitrate, nitrite, phosphate, silicate, ammonium, and urea. At 51 stations on cruise N1 and 61 on N2, water samples were filtered and analyzed for phytoplankton pigments at the surface and from the chlorophyll maximum and the low light regime immediately below it. Pigments were determined using high performance liquid chromatography. At 60 stations on each cruise, water samples were filtered and analyzed for particulate matter concentrations at surface, middle, and bottom water depths and for particulate organic carbon concentrations at surface and bottom water depths. Bottle salinity was measured at every station on the first cruise and at the shallowest and deepest stations on each cross-shelf line on the second. The instrumentation as well as calibration and sampling procedures are described in this report. The collected data were subjected to stringent quality assurance/quality control procedures. ERDDAP tabledap 1 -84.6935 -84.6935 28.8381 28.8381 seconds 1998-11-17T17:15:00Z 1998-11-17T17:15:00Z -43.5 -2.5 tight ERDDAPtabledapDatasetQueryAndAccess https://gcoos5.geos.tamu.edu/erddap/tabledap/negom_n4l09s07 ERDDAP:tabledap ERDDAP-tabledap ERDDAP's tabledap service (a flavor of OPeNDAP) for tabular (sequence) data. Add different extensions (e.g., .html, .graph, .das, .dds) to the base URL for different purposes. download "NEGOM CTD - n4l09s07.nc - 28.84N, 84.69W - 1998-11-17" 2026-01-02 creation Marion Stoessel, Dr. Matthew K. Howard OCEAN.TAMU mstoessel@ocean.tamu.edu, mkhoward@tamu.edu http://ocean.tamu.edu//people/researchpersonnel/stosselmarion, https://ocean.tamu.edu//people/researchpersonnel/howardmatthewk information web browser Background Information Background information from the source information originator Worth D. Nowlin,Jr., Ann E. Jochens, Douglas Biggs, Norman L. Guinasso,Jr., Matthew K. Howard, M.C. Kennicutt II, Robert O. Reid wnowlin@tamu.edu, ajochens@tamu.edu, d-biggs@tamu.edu, guinasso@tamu.edu, mkhoward@tamu.edu, m-kennicutt@tamu.edu, contributor The Northeastern Gulf of Mexico Physical Oceanography Program (NEGOM) is supported by the Minerals Management Service (MMS) of the U.S. Department of the Interior. Through a contract between MMS and the Texas A&M Research Foundation, several components of the Texas A&M University System are conducting the Chemical Oceanography and Hydrography study of NEGOM (NEGOM-COH). This report covers activities from October 1997 through June 1998. Data were collected from hydrographic and acoustic Doppler current profiler (ADCP) surveys conducted in the Gulf of Mexico over the continental shelf and upper slope between the Mississippi delta and Tampa Bay in water depths of 10 to 1000 m. Additionally, historical and concurrent data from other programs in this region were collected. Two hydrographic/ADCP surveys, N1 and N2, were conducted with 94 and 98 hydrographic sampling stations and with 80 and 97 expendable bathythermograph stations on respective cruises. Each survey also included continuous ADCP measurements along the cruise track. At each hydrographic sampling station continuous profiles were made of conductivity, temperature, pressure, downwelling irradiance, fluorescence, and light transmission. Up to twelve water samples were taken at each station and analyzed for dissolved oxygen and six nutrients: nitrate, nitrite, phosphate, silicate, ammonium, and urea. At 51 stations on cruise N1 and 61 on N2, water samples were filtered and analyzed for phytoplankton pigments at the surface and from the chlorophyll maximum and the low light regime immediately below it. Pigments were determined using high performance liquid chromatography. At 60 stations on each cruise, water samples were filtered and analyzed for particulate matter concentrations at surface, middle, and bottom water depths and for particulate organic carbon concentrations at surface and bottom water depths. Bottle salinity was measured at every station on the first cruise and at the shallowest and deepest stations on each cross-shelf line on the second. The instrumentation as well as calibration and sampling procedures are described in this report. The collected data were subjected to stringent quality assurance/quality control procedures. OPeNDAP 1 -84.6935 -84.6935 28.8381 28.8381 seconds 1998-11-17T17:15:00Z 1998-11-17T17:15:00Z -43.5 -2.5 tight OPeNDAPDatasetQueryAndAccess https://gcoos5.geos.tamu.edu/erddap/tabledap/negom_n4l09s07 OPeNDAP:OPeNDAP OPeNDAP An OPeNDAP service for tabular (sequence) data. Add different extensions (e.g., .html, .das, .dds) to the base URL for different purposes. download "NEGOM CTD - n4l09s07.nc - 28.84N, 84.69W - 1998-11-17" 2026-01-02 creation Marion Stoessel, Dr. Matthew K. Howard OCEAN.TAMU mstoessel@ocean.tamu.edu, mkhoward@tamu.edu http://ocean.tamu.edu//people/researchpersonnel/stosselmarion, https://ocean.tamu.edu//people/researchpersonnel/howardmatthewk information web browser Background Information Background information from the source information originator Worth D. Nowlin,Jr., Ann E. Jochens, Douglas Biggs, Norman L. Guinasso,Jr., Matthew K. Howard, M.C. Kennicutt II, Robert O. Reid wnowlin@tamu.edu, ajochens@tamu.edu, d-biggs@tamu.edu, guinasso@tamu.edu, mkhoward@tamu.edu, m-kennicutt@tamu.edu, contributor The Northeastern Gulf of Mexico Physical Oceanography Program (NEGOM) is supported by the Minerals Management Service (MMS) of the U.S. Department of the Interior. Through a contract between MMS and the Texas A&M Research Foundation, several components of the Texas A&M University System are conducting the Chemical Oceanography and Hydrography study of NEGOM (NEGOM-COH). This report covers activities from October 1997 through June 1998. Data were collected from hydrographic and acoustic Doppler current profiler (ADCP) surveys conducted in the Gulf of Mexico over the continental shelf and upper slope between the Mississippi delta and Tampa Bay in water depths of 10 to 1000 m. Additionally, historical and concurrent data from other programs in this region were collected. Two hydrographic/ADCP surveys, N1 and N2, were conducted with 94 and 98 hydrographic sampling stations and with 80 and 97 expendable bathythermograph stations on respective cruises. Each survey also included continuous ADCP measurements along the cruise track. At each hydrographic sampling station continuous profiles were made of conductivity, temperature, pressure, downwelling irradiance, fluorescence, and light transmission. Up to twelve water samples were taken at each station and analyzed for dissolved oxygen and six nutrients: nitrate, nitrite, phosphate, silicate, ammonium, and urea. At 51 stations on cruise N1 and 61 on N2, water samples were filtered and analyzed for phytoplankton pigments at the surface and from the chlorophyll maximum and the low light regime immediately below it. Pigments were determined using high performance liquid chromatography. At 60 stations on each cruise, water samples were filtered and analyzed for particulate matter concentrations at surface, middle, and bottom water depths and for particulate organic carbon concentrations at surface and bottom water depths. Bottle salinity was measured at every station on the first cruise and at the shallowest and deepest stations on each cross-shelf line on the second. The instrumentation as well as calibration and sampling procedures are described in this report. The collected data were subjected to stringent quality assurance/quality control procedures. ERDDAP Subset 1 -84.6935 -84.6935 28.8381 28.8381 seconds 1998-11-17T17:15:00Z 1998-11-17T17:15:00Z -43.5 -2.5 tight ERDDAP_Subset https://gcoos5.geos.tamu.edu/erddap/tabledap/negom_n4l09s07.subset search Subset Web page to facilitate selecting subsets of the dataset download physicalMeasurement profile short n4l09s0 time double Time bottomdepth double Total Water Depth pressure double Sea Water Pressure temperature double Temperature potentialTemperature double Potential Temperature conductivity double Conductivity salinity double Salinity sigmat double sigma-t descentRate double instrument package decent rate transmission double beam transmission [%] par double photosynthetically active radiation parv double photosynthetically active radiation in volts fluorescence double relative fluoresence backscattering double relative backscattering instrument int Sea-Bird SBE-911-Plus instrument1 String ADCP instrument2 int XBT crs double CRS Tuomo Saari TAMU +1 979-979-9799 400 Bizzell St. College Station TX 77843 USA tsaari@tamu.edu distributor OPeNDAP DAP/2.0 https://gcoos5.geos.tamu.edu/erddap/tabledap/negom_n4l09s07.html order Data Subset Form ERDDAP's version of the OPeNDAP .html web page for this dataset. Specify a subset of the dataset and download the data via OPeNDAP or in many different file types. download https://gcoos5.geos.tamu.edu/erddap/tabledap/negom_n4l09s07.graph order Make-A-Graph Form ERDDAP's Make-A-Graph .html web page for this dataset. Create an image with a map or graph of a subset of the data. mapDigital This record was created from dataset metadata by ERDDAP Version 2.28.1