bcodmo_dataset_1002509_v1 eng UTF8 dataset service Adam Shepherd BCO-DMO 508-289-2772 266 Woods Hole Rd. MS#36 Woods Hole MA 02543 USA erddap@bco-dmo.org pointOfContact 2026-09-09 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) 2 column row [Geochemical data from methane seeps in the Cascadia Margin] - Porewater geochemical data from methane seeps in the Astoria Canyon and Hydrate Ridge along the Cascadia Margin collected during R/V Atlantis cruises in 2023 and 2024 (Collaborative Research: Investigating the source and flux of dissolved organic carbon released from methane seeps to the deep-ocean) 2026-09-09 creation erddap.bco-dmo.org bcodmo_dataset_1002509_v1 BCO-DMO info@bco-dmo.org https://osprey.bco-dmo.org/dataset/1002509 information web browser Background Information Background information from the source information originator These data include vertical profiles of concentrations and stable carbon isotope values of dissolved organic carbon (DOC), dissolved inorganic carbon (DIC), and total organic carbon (TOC) from sediment cores collected at methane seeps and reference sites. Sediment porosity and dissolved sulfate and methane concentrations are also presented. Methane seeps in Astoria Canyon and Hydrate Ridge along the Cascadia Margin were sampled. These data were collected over two years and across two cruises: AT50-14 (R/V Atlantis, 2023) and AT50-29B (R/V Atlantis, 2024). These data are used to assess the prevalence of methane-derived DOC at methane seeps, which may contribute 'old' carbon to the deep ocean or serve as a source of reduced carbon for the deep ocean microbial loop. BCO-DMO info@bco-dmo.org https://osprey.bco-dmo.org/dataset/1002509 information web browser Background Information Background information from the source information pointOfContact earth science atmosphere ocean biosphere biology environment theme BCO-DMO project latitude longitude theme CF The data may be used and redistributed for free but is not intended for legal use, since it may contain inaccuracies. Neither the data Contributor, ERD, NOAA, nor the United States Government, nor any of their employees or contractors, makes any warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, or assumes any legal liability for the accuracy, completeness, or usefulness, of this information. BCO-DMO largerWorkCitation project eng geoscientificInformation 1 -125.1481 -124.6012 44.56981 46.24242 [Geochemical data from methane seeps in the Cascadia Margin] - Porewater geochemical data from methane seeps in the Astoria Canyon and Hydrate Ridge along the Cascadia Margin collected during R/V Atlantis cruises in 2023 and 2024 (Collaborative Research: Investigating the source and flux of dissolved organic carbon released from methane seeps to the deep-ocean) 2026-09-09 creation BCO-DMO info@bco-dmo.org https://osprey.bco-dmo.org/dataset/1002509 information web browser Background Information Background information from the source information originator These data include vertical profiles of concentrations and stable carbon isotope values of dissolved organic carbon (DOC), dissolved inorganic carbon (DIC), and total organic carbon (TOC) from sediment cores collected at methane seeps and reference sites. Sediment porosity and dissolved sulfate and methane concentrations are also presented. Methane seeps in Astoria Canyon and Hydrate Ridge along the Cascadia Margin were sampled. These data were collected over two years and across two cruises: AT50-14 (R/V Atlantis, 2023) and AT50-29B (R/V Atlantis, 2024). These data are used to assess the prevalence of methane-derived DOC at methane seeps, which may contribute 'old' carbon to the deep ocean or serve as a source of reduced carbon for the deep ocean microbial loop. ERDDAP tabledap 1 -125.1481 -124.6012 44.56981 46.24242 tight ERDDAPtabledapDatasetQueryAndAccess https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_1002509_v1 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 [Geochemical data from methane seeps in the Cascadia Margin] - Porewater geochemical data from methane seeps in the Astoria Canyon and Hydrate Ridge along the Cascadia Margin collected during R/V Atlantis cruises in 2023 and 2024 (Collaborative Research: Investigating the source and flux of dissolved organic carbon released from methane seeps to the deep-ocean) 2026-09-09 creation BCO-DMO info@bco-dmo.org https://osprey.bco-dmo.org/dataset/1002509 information web browser Background Information Background information from the source information originator These data include vertical profiles of concentrations and stable carbon isotope values of dissolved organic carbon (DOC), dissolved inorganic carbon (DIC), and total organic carbon (TOC) from sediment cores collected at methane seeps and reference sites. Sediment porosity and dissolved sulfate and methane concentrations are also presented. Methane seeps in Astoria Canyon and Hydrate Ridge along the Cascadia Margin were sampled. These data were collected over two years and across two cruises: AT50-14 (R/V Atlantis, 2023) and AT50-29B (R/V Atlantis, 2024). These data are used to assess the prevalence of methane-derived DOC at methane seeps, which may contribute 'old' carbon to the deep ocean or serve as a source of reduced carbon for the deep ocean microbial loop. OPeNDAP 1 -125.1481 -124.6012 44.56981 46.24242 tight OPeNDAPDatasetQueryAndAccess https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_1002509_v1 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 physicalMeasurement Cruise String Cruise Region String Region Station String Station Core_Type String Core_type Core_retrieval_method String Core_retrieval_method Date_Collected String Date_collected Dive int Dive Water_depth_m float Water_depth_m Top_sed_depth_cm float Top_sed_depth_cm Bottom_sed_depth_cm float Bottom_sed_depth_cm Depth_cm float Depth_cm Sample_ID String Sample_id Core_ID String Core_id Core_Allocation String Core_allocation Flux_Regime_Location_Based String Flux_regime_location_based OLW_num String Olw_num Comments String Comments Frozen_status String Frozen_status CH4_mM float Ch4_mm del13C_CH4 float Del13c_ch4 CO2_mM float Co2_mm del13C_CO2 float Del13c_co2 Porosity float Porosity del13C_DIC float Del13c_dic DIC_mM float Dic_mm DOC_mM float Doc_mm del13C_DOC float Del13c_doc Sulfate_mM float Sulfate_mm Chloride_mM float Chloride_mm del13C_TOC float Del13c_toc Corg_percent_TOC float Corg_percent_toc del15N_TON float Del15n_ton Norg_percent_TON float Norg_percent_ton Norg_percent_TN float Norg_percent_tn Corg_percent_TC float Corg_percent_tc del15N_TN float Del15n_tn del13C_TC float Del13c_tc Hydrogen_nM String Hydrogen_nm pH float Ph Alkalinity_meq_L float Alkalinity_meq_l H2S_mM float H2s_mm NH3_mgN_L float Nh3_mgn_l PO4_mgP_L String Po4_mgp_l NO2_NO3_mgN_L String No2_no3_mgn_l B_mmol_kg float B_mmol_kg Ba_mmol_kg float Ba_mmol_kg Ca_mmol_kg float Ca_mmol_kg Fe_mmol_kg float Fe_mmol_kg K_mmol_kg float K_mmol_kg Mg_mmol_kg float Mg_mmol_kg Na_mmol_kg float Na_mmol_kg Si_mmol_kg float Si_mmol_kg Sr_mmol_kg float Sr_mmol_kg Adam Shepherd BCO-DMO 508-289-2772 266 Woods Hole Rd. MS#36 Woods Hole MA 02543 USA erddap@bco-dmo.org distributor OPeNDAP DAP/2.0 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_1002509_v1.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.bco-dmo.org/erddap/tabledap/bcodmo_dataset_1002509_v1.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 2.22