R4_x257_230_0019_DP04_HS2_007 eng UTF8 dataset service Michael S. Williamson Texas A&M University-Corpus Christi +1 361-825-2048 HRI 213E Corpus Christi TX 78412 USA michael.williamson@tamucc.edu pointOfContact 2026-05-11 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) 4 column row vertical temporal Profile - R4_x257_230_0019 - DP04_HS2_007 - 26.96N, 88.50W - 2016-08-11 2020-11-06 creation 2020-11-06 issued erddap.griidc.org R4_x257_230_0019_DP04_HS2_007 Chuanmin Hu University of South Florida / College of Marine Science huc@usf.edu https://data.gulfresearchinitiative.org/data/R4.x257.230:0019 information web browser Background Information Background information from the source information originator Near surface fluorescence and optical scattering profiles at Conductivity, Temperature, Depth (CTD) sampling stations. Cruises DP03 and DP04 from January 2016 - December 2016. Optical absorption and scattering are the primary determinants of the flow of radiant energy in the ocean?s surface waters. Particles in the water are the principle source of scattering, and the scattering measurements can indicate the amount and/or type of particles present. While a complete measurement of the scattered light field is complex and cumbersome, a measurement of the backscattering at particular angles can usually be related to the total backscattering of light. The backscattering of light not only provides information about the particle present, it is important for understanding variations in Rrs. We measure backscattering in the water with either a 2 channel (700 & 532nm at ~117?), 6 channel (442, 488,532,589,620, 680nm at ~140 deg), or 2 channel (420 & 700nm) scattering meter. We synchronize this instrument with a chlorophyll and Colored Dissolved Organic Matter (CDOM) fluorometer, and lower them on an instrument frame through the upper portion of the water column to obtain vertical profiles of the in situ chl. and CDOM fluorescence, as well as the amount and spectral shape of the backscattering. These profiles will be made at the CTD sampling stations, but instrument constraints will limit the depth of the profiles to <300m. This data was collected during the same cruise as GRIIDC CTD datasets R4.x257.230:00011 and R4.x257.230:0012 Chuanmin Hu University of South Florida / College of Marine Science huc@usf.edu https://data.gulfresearchinitiative.org/data/R4.x257.230:0019 information web browser Background Information Background information from the source information pointOfContact 420nm 700nm absorption backscattering bbfl2 cast castID cdom chemistry chla chlorophyll chlorophyll-a chorophyll coefficient college color colored concentration conductivity crs cruise cruises ctd data degree dissolved dp03 dp04 due earth eco eco-bbfl2 florida fluorescence flux hobilabs hs2 identifier instrument instrument1 marine mass matter measured meter near number ocean ocean color oceans optical optical backscattering optical properties optics organic platform point profile profiles properties radiance radiative sampling scattering science sea seawater sonde south spectra stations sur surface temperature university volume water wetlabs theme Earth Science > Oceans > Ocean Optics > Radiance Earth Science > Oceans > Ocean Optics > Absorption Earth Science > Oceans > Ocean Chemistry > Organic Matter Earth Science > Oceans > Ocean Chemistry > Chlorophyll theme GCMD Science Keywords Deep-Pelagic Nekton Dynamic of Gulf of Mexico (DEEPEND) project time cruise_number latitude longitude cast depth optical_backscattering optical_backscattering volume_absorption_coefficient_of_radiative_flux_in_sea_water_due_to_dissolved_organic_matter mass_concentration_of_chlorophyll_a_in_sea_water theme CF Standard Name Table v72 These data may be redistributed and used without restriction. Deep-Pelagic Nekton Dynamic of Gulf of Mexico (DEEPEND) largerWorkCitation project Unidata Common Data Model Profile largerWorkCitation project eng geoscientificInformation 1 -88.502 -88.502 26.967 26.967 seconds 2016-08-11T23:47:00Z 2016-08-11T23:47:00Z -181.0 -1.0 Profile - R4_x257_230_0019 - DP04_HS2_007 - 26.96N, 88.50W - 2016-08-11 2020-11-06 creation 2020-11-06 issued Chuanmin Hu University of South Florida / College of Marine Science huc@usf.edu https://data.gulfresearchinitiative.org/data/R4.x257.230:0019 information web browser Background Information Background information from the source information originator Near surface fluorescence and optical scattering profiles at Conductivity, Temperature, Depth (CTD) sampling stations. Cruises DP03 and DP04 from January 2016 - December 2016. Optical absorption and scattering are the primary determinants of the flow of radiant energy in the ocean?s surface waters. Particles in the water are the principle source of scattering, and the scattering measurements can indicate the amount and/or type of particles present. While a complete measurement of the scattered light field is complex and cumbersome, a measurement of the backscattering at particular angles can usually be related to the total backscattering of light. The backscattering of light not only provides information about the particle present, it is important for understanding variations in Rrs. We measure backscattering in the water with either a 2 channel (700 & 532nm at ~117?), 6 channel (442, 488,532,589,620, 680nm at ~140 deg), or 2 channel (420 & 700nm) scattering meter. We synchronize this instrument with a chlorophyll and Colored Dissolved Organic Matter (CDOM) fluorometer, and lower them on an instrument frame through the upper portion of the water column to obtain vertical profiles of the in situ chl. and CDOM fluorescence, as well as the amount and spectral shape of the backscattering. These profiles will be made at the CTD sampling stations, but instrument constraints will limit the depth of the profiles to <300m. This data was collected during the same cruise as GRIIDC CTD datasets R4.x257.230:00011 and R4.x257.230:0012 ERDDAP tabledap 1 -88.502 -88.502 26.967 26.967 seconds 2016-08-11T23:47:00Z 2016-08-11T23:47:00Z -181.0 -1.0 tight ERDDAPtabledapDatasetQueryAndAccess https://erddap.griidc.org/erddap/tabledap/R4_x257_230_0019_DP04_HS2_007 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 Profile - R4_x257_230_0019 - DP04_HS2_007 - 26.96N, 88.50W - 2016-08-11 2020-11-06 creation 2020-11-06 issued Chuanmin Hu University of South Florida / College of Marine Science huc@usf.edu https://data.gulfresearchinitiative.org/data/R4.x257.230:0019 information web browser Background Information Background information from the source information originator Near surface fluorescence and optical scattering profiles at Conductivity, Temperature, Depth (CTD) sampling stations. Cruises DP03 and DP04 from January 2016 - December 2016. Optical absorption and scattering are the primary determinants of the flow of radiant energy in the ocean?s surface waters. Particles in the water are the principle source of scattering, and the scattering measurements can indicate the amount and/or type of particles present. While a complete measurement of the scattered light field is complex and cumbersome, a measurement of the backscattering at particular angles can usually be related to the total backscattering of light. The backscattering of light not only provides information about the particle present, it is important for understanding variations in Rrs. We measure backscattering in the water with either a 2 channel (700 & 532nm at ~117?), 6 channel (442, 488,532,589,620, 680nm at ~140 deg), or 2 channel (420 & 700nm) scattering meter. We synchronize this instrument with a chlorophyll and Colored Dissolved Organic Matter (CDOM) fluorometer, and lower them on an instrument frame through the upper portion of the water column to obtain vertical profiles of the in situ chl. and CDOM fluorescence, as well as the amount and spectral shape of the backscattering. These profiles will be made at the CTD sampling stations, but instrument constraints will limit the depth of the profiles to <300m. This data was collected during the same cruise as GRIIDC CTD datasets R4.x257.230:00011 and R4.x257.230:0012 OPeNDAP 1 -88.502 -88.502 26.967 26.967 seconds 2016-08-11T23:47:00Z 2016-08-11T23:47:00Z -181.0 -1.0 tight OPeNDAPDatasetQueryAndAccess https://erddap.griidc.org/erddap/tabledap/R4_x257_230_0019_DP04_HS2_007 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 Profile - R4_x257_230_0019 - DP04_HS2_007 - 26.96N, 88.50W - 2016-08-11 2020-11-06 creation 2020-11-06 issued Chuanmin Hu University of South Florida / College of Marine Science huc@usf.edu https://data.gulfresearchinitiative.org/data/R4.x257.230:0019 information web browser Background Information Background information from the source information originator Near surface fluorescence and optical scattering profiles at Conductivity, Temperature, Depth (CTD) sampling stations. Cruises DP03 and DP04 from January 2016 - December 2016. Optical absorption and scattering are the primary determinants of the flow of radiant energy in the ocean?s surface waters. Particles in the water are the principle source of scattering, and the scattering measurements can indicate the amount and/or type of particles present. While a complete measurement of the scattered light field is complex and cumbersome, a measurement of the backscattering at particular angles can usually be related to the total backscattering of light. The backscattering of light not only provides information about the particle present, it is important for understanding variations in Rrs. We measure backscattering in the water with either a 2 channel (700 & 532nm at ~117?), 6 channel (442, 488,532,589,620, 680nm at ~140 deg), or 2 channel (420 & 700nm) scattering meter. We synchronize this instrument with a chlorophyll and Colored Dissolved Organic Matter (CDOM) fluorometer, and lower them on an instrument frame through the upper portion of the water column to obtain vertical profiles of the in situ chl. and CDOM fluorescence, as well as the amount and spectral shape of the backscattering. These profiles will be made at the CTD sampling stations, but instrument constraints will limit the depth of the profiles to <300m. This data was collected during the same cruise as GRIIDC CTD datasets R4.x257.230:00011 and R4.x257.230:0012 ERDDAP Subset 1 -88.502 -88.502 26.967 26.967 seconds 2016-08-11T23:47:00Z 2016-08-11T23:47:00Z -181.0 -1.0 tight ERDDAP_Subset https://erddap.griidc.org/erddap/tabledap/R4_x257_230_0019_DP04_HS2_007.subset search Subset Web page to facilitate selecting subsets of the dataset download physicalMeasurement profile short DP04_HS2_007 time double Time cruise String cruise number castID String Cast ID optical_backscattering_420nm double Optical backscattering at 117 degree, 420nm optical_absorption_spectra_at_ optical_backscattering_700nm double Optical backscattering at 117 degree, 700nm optical_absorption_spectra_at_ fluorescence_at_700nm double Fluorescence at 700nm optical_absorption_spectra_at_ CDOM_fluorescence double CDOM_measured_by_fluorescence mass_concentration_of_chlorophyll_a double Chorophyll_a concentration platform char RV_Point_Sur instrument char HOBILabs HS2 scattering meter instrument1 char WETLabs ECO-BBFL2 crs int CRS Michael S. Williamson Texas A&M University-Corpus Christi +1 361-825-2048 HRI 213E Corpus Christi TX 78412 USA michael.williamson@tamucc.edu distributor OPeNDAP DAP/2.0 https://erddap.griidc.org/erddap/tabledap/R4_x257_230_0019_DP04_HS2_007.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://erddap.griidc.org/erddap/tabledap/R4_x257_230_0019_DP04_HS2_007.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 dataset 2020-11-06T10:54:05Z This record was created from dataset metadata by ERDDAP Version 2.02