bcodmo_dataset_943994_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 2026-08-30 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) 3 column row vertical [Houston Galveston Bay Carbonate] - Carbonate chemistry data from water samples collected aboard the R/V Trident in Galveston Bay, Northwestern Gulf of Mexico from October 2017 to September 2018 (RAPID: Capturing the Signature of Hurricane Harvey on Texas Coastal Lagoons) 2026-08-30 creation erddap.bco-dmo.org bcodmo_dataset_943994_v1 BCO-DMO info@bco-dmo.org https://osprey.bco-dmo.org/dataset/943994 information web browser Background Information Background information from the source information originator Quantifying the direction and magnitude of CO2 flux in estuaries is necessary to constrain the global carbon cycle, yet carbonate systems and CO2 flux in subtropical and urbanized estuaries are not yet fully determined. To estimate the CO2 flux for Galveston Bay, a subtropical estuary located in the northwestern Gulf of Mexico proximal to the Houston-Galveston metroplex, monthly cruises were conducted along a transect extending from the Houston ship channel to the mouth of Galveston Bay and Gulf of Mexico from October 2017 to September 2018. On these cruises, discrete water samples were collected for laboratory analyses of total alkalinity (TA), total dissolved inorganic carbon (DIC), and pH, and aragonite saturation state (ΩAr) was calculated. Mean Bay water TA was 2062.0 ± 213.2 µmol kg-1, DIC was 1863.7 ± 160.9 µmol kg-1, pH was 8.09 ± 0.17, and ΩAr was 2.43 ± 0.96. When compared to theoretical river-ocean mixing scenarios, TA values fell above the mixing line in winter and summer, indicating production, while DIC values displayed more spatial variability that included both production and consumption in different seasons. A large freshwater inflow event in spring was followed by a period of dilution (low salinity, TA, and DIC) and enhanced primary production (low pCO2, water, CO2 uptake, and high chlorophyll-a levels). Carbonate chemistry in Galveston Bay was regulated by an interaction between hydrology and biogeochemistry. The carbonate chemistry and CO2 uptake patterns of Galveston Bay differ from those that are common in temperate estuaries, which reiterates the need for further research in subtropical estuaries. BCO-DMO info@bco-dmo.org https://osprey.bco-dmo.org/dataset/943994 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 depth 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 -94.931 -94.752 29.358 29.61 -5.0 -0.1 [Houston Galveston Bay Carbonate] - Carbonate chemistry data from water samples collected aboard the R/V Trident in Galveston Bay, Northwestern Gulf of Mexico from October 2017 to September 2018 (RAPID: Capturing the Signature of Hurricane Harvey on Texas Coastal Lagoons) 2026-08-30 creation BCO-DMO info@bco-dmo.org https://osprey.bco-dmo.org/dataset/943994 information web browser Background Information Background information from the source information originator Quantifying the direction and magnitude of CO2 flux in estuaries is necessary to constrain the global carbon cycle, yet carbonate systems and CO2 flux in subtropical and urbanized estuaries are not yet fully determined. To estimate the CO2 flux for Galveston Bay, a subtropical estuary located in the northwestern Gulf of Mexico proximal to the Houston-Galveston metroplex, monthly cruises were conducted along a transect extending from the Houston ship channel to the mouth of Galveston Bay and Gulf of Mexico from October 2017 to September 2018. On these cruises, discrete water samples were collected for laboratory analyses of total alkalinity (TA), total dissolved inorganic carbon (DIC), and pH, and aragonite saturation state (ΩAr) was calculated. Mean Bay water TA was 2062.0 ± 213.2 µmol kg-1, DIC was 1863.7 ± 160.9 µmol kg-1, pH was 8.09 ± 0.17, and ΩAr was 2.43 ± 0.96. When compared to theoretical river-ocean mixing scenarios, TA values fell above the mixing line in winter and summer, indicating production, while DIC values displayed more spatial variability that included both production and consumption in different seasons. A large freshwater inflow event in spring was followed by a period of dilution (low salinity, TA, and DIC) and enhanced primary production (low pCO2, water, CO2 uptake, and high chlorophyll-a levels). Carbonate chemistry in Galveston Bay was regulated by an interaction between hydrology and biogeochemistry. The carbonate chemistry and CO2 uptake patterns of Galveston Bay differ from those that are common in temperate estuaries, which reiterates the need for further research in subtropical estuaries. ERDDAP tabledap 1 -94.931 -94.752 29.358 29.61 -5.0 -0.1 tight ERDDAPtabledapDatasetQueryAndAccess https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_943994_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 [Houston Galveston Bay Carbonate] - Carbonate chemistry data from water samples collected aboard the R/V Trident in Galveston Bay, Northwestern Gulf of Mexico from October 2017 to September 2018 (RAPID: Capturing the Signature of Hurricane Harvey on Texas Coastal Lagoons) 2026-08-30 creation BCO-DMO info@bco-dmo.org https://osprey.bco-dmo.org/dataset/943994 information web browser Background Information Background information from the source information originator Quantifying the direction and magnitude of CO2 flux in estuaries is necessary to constrain the global carbon cycle, yet carbonate systems and CO2 flux in subtropical and urbanized estuaries are not yet fully determined. To estimate the CO2 flux for Galveston Bay, a subtropical estuary located in the northwestern Gulf of Mexico proximal to the Houston-Galveston metroplex, monthly cruises were conducted along a transect extending from the Houston ship channel to the mouth of Galveston Bay and Gulf of Mexico from October 2017 to September 2018. On these cruises, discrete water samples were collected for laboratory analyses of total alkalinity (TA), total dissolved inorganic carbon (DIC), and pH, and aragonite saturation state (ΩAr) was calculated. Mean Bay water TA was 2062.0 ± 213.2 µmol kg-1, DIC was 1863.7 ± 160.9 µmol kg-1, pH was 8.09 ± 0.17, and ΩAr was 2.43 ± 0.96. When compared to theoretical river-ocean mixing scenarios, TA values fell above the mixing line in winter and summer, indicating production, while DIC values displayed more spatial variability that included both production and consumption in different seasons. A large freshwater inflow event in spring was followed by a period of dilution (low salinity, TA, and DIC) and enhanced primary production (low pCO2, water, CO2 uptake, and high chlorophyll-a levels). Carbonate chemistry in Galveston Bay was regulated by an interaction between hydrology and biogeochemistry. The carbonate chemistry and CO2 uptake patterns of Galveston Bay differ from those that are common in temperate estuaries, which reiterates the need for further research in subtropical estuaries. OPeNDAP 1 -94.931 -94.752 29.358 29.61 -5.0 -0.1 tight OPeNDAPDatasetQueryAndAccess https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_943994_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 Station int Station Sample String Sample Date String Date Temp float Temp Sonde_Salinity float Sonde_salinity DO_percentage float Do_percentage DO float Do DIC float Dic Alkalinity float Alkalinity pH_Spec float Ph_spec Lab_Salinity float Lab_salinity Calcium float Calcium Aragonite_saturation_state_CO2SYS float Aragonite_saturation_state_co2sys Corrected_aragonite_saturation_state float Corrected_aragonite_saturation_state pCO2 float Pco2 pH_at_in_situ_Temp float Ph_at_in_situ_temp Notes String Notes 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_943994_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_943994_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