dO18StableIsotopesCruise eng UTF8 dataset service Sage Rutgers University - DMCS +1 848-932-3344 71 Dudley Road New Brunswick NJ 08901 USA sage@marine.rutgers.edu pointOfContact 2026-09-18 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) 4 column row vertical temporal Sources of oceanic freshwater content along the western Antarctic Peninsula (PAL-LTER Study Region) determined by the stable isotope composition (d18O) of seawater. 2022-03-29 creation 2022-03-29 issued pallter-data.marine.rutgers.edu dO18StableIsotopesCruise John Kerfoot National Science Foundation kerfoot@marine.rutgers.edu https://pal.lternet.edu/ information web browser Background Information Background information from the source information originator Melanie Leng,Hugh Ducklow,Micheal Meredith mjl@bgs.ac.uk,hducklow@ldeo.columbia.edu,mmm@bas.ac.uk contributor The oceanic distribution of d18O is determined largely by the same processes that control salinity. Surface d18O reflects the magnitude and spatial distribution of freshwater inputs, and it is a conservative tracer in the ocean interior. The great benefit of d18O is obtained from the circumstances under which it exhibits behavior different to that of salinity. One such circumstance derives from the salinity and d18O values in precipitation, with salinity being constant with latitude (typically zero), while in general d18O in precipitation becomes progressively isotopically lighter toward the poles. This results in glacial ice (which derives from high-latitude precipitation) being very isotopically light, enabling d18O to be a useful tracer of glacial discharge to the ocean (e.g., Schlosser et al. 1990; Weiss et al. 1979). Another difference occurs in regions influenced by sea ice, which greatly affects salinity during its formation/melt cycle but has only minimal impact on d18O. This decoupling of the two tracers allows them to be used in tandem to quantitatively separate freshwater inputs from sea ice melt and those from meteoric sources (precipitation plus glacial discharge). For this, a simple three-endmember mass balance can be used. For details please see Meredith, M. P., H. J. Venables, A. Clarke, H. W. Ducklow, M. Erickson, M. J. Leng, J. T. M. Lenaerts, and M. R. van den Broeke. 2013. The freshwater system west of the Antarctic Peninsula: Spatial and temporal changes. Journal of Climate 26:1669-1684. Funding and support provided by the National Science Foundation John Kerfoot National Science Foundation kerfoot@marine.rutgers.edu https://pal.lternet.edu/ information web browser Background Information Background information from the source information pointOfContact Antarctica freshwater freshwater sources glacial runoff ice isotopes oceans oxygen oxygen-18 runoff sea ice seawater stable isotopes theme Palmer LTER project time latitude longitude depth sea_water_pressure sea_water_practical_salinity sea_water_practical_salinity sea_water_sigma_t sea_water_sigma_t sea_water_temperature sea_water_temperature downwelling_photosynthetic_photon_radiance_in_sea_water mass_concentration_of_oxygen_in_sea_water mass_concentration_of_oxygen_in_sea_water mass_concentration_of_chlorophyll_a_in_sea_water theme CF Standard Name Table v77 All data contained herein is licensed under the LTER Network Data Access Policy (https://lternet.edu/data-access-policy/). In accordance with scientific publishing conventions and professional etiquette, the consumer of these data (the "Data User") is expected to appropriately cite these data in any publication that results from their use. The Data User should realize that these data may be actively used by others for ongoing research and that coordination may be necessary to prevent duplicate publication. The Data User is urged to contact the authors of these data if any questions about methodology or results occur and should realize that misinterpretation of data may occur if used out of context of the original study. Where appropriate, the Data User is encouraged to consider collaboration or co-authorship with the data authors. While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed. All data are made available "as is." The Data User should be aware that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data. Palmer LTER largerWorkCitation project Unidata Common Data Model Trajectory largerWorkCitation project eng geoscientificInformation 1 -77.965 -64.04667 -70.08833 -63.963333 seconds 2011-01-07T00:00:00Z 2014-01-27T00:00:00Z -3713.681 -0.104 Sources of oceanic freshwater content along the western Antarctic Peninsula (PAL-LTER Study Region) determined by the stable isotope composition (d18O) of seawater. 2022-03-29 creation 2022-03-29 issued John Kerfoot National Science Foundation kerfoot@marine.rutgers.edu https://pal.lternet.edu/ information web browser Background Information Background information from the source information originator Melanie Leng,Hugh Ducklow,Micheal Meredith mjl@bgs.ac.uk,hducklow@ldeo.columbia.edu,mmm@bas.ac.uk contributor The oceanic distribution of d18O is determined largely by the same processes that control salinity. Surface d18O reflects the magnitude and spatial distribution of freshwater inputs, and it is a conservative tracer in the ocean interior. The great benefit of d18O is obtained from the circumstances under which it exhibits behavior different to that of salinity. One such circumstance derives from the salinity and d18O values in precipitation, with salinity being constant with latitude (typically zero), while in general d18O in precipitation becomes progressively isotopically lighter toward the poles. This results in glacial ice (which derives from high-latitude precipitation) being very isotopically light, enabling d18O to be a useful tracer of glacial discharge to the ocean (e.g., Schlosser et al. 1990; Weiss et al. 1979). Another difference occurs in regions influenced by sea ice, which greatly affects salinity during its formation/melt cycle but has only minimal impact on d18O. This decoupling of the two tracers allows them to be used in tandem to quantitatively separate freshwater inputs from sea ice melt and those from meteoric sources (precipitation plus glacial discharge). For this, a simple three-endmember mass balance can be used. For details please see Meredith, M. P., H. J. Venables, A. Clarke, H. W. Ducklow, M. Erickson, M. J. Leng, J. T. M. Lenaerts, and M. R. van den Broeke. 2013. The freshwater system west of the Antarctic Peninsula: Spatial and temporal changes. Journal of Climate 26:1669-1684. ERDDAP tabledap 1 -77.965 -64.04667 -70.08833 -63.963333 seconds 2011-01-07T00:00:00Z 2014-01-27T00:00:00Z -3713.681 -0.104 tight ERDDAPtabledapDatasetQueryAndAccess https://pallter-data.marine.rutgers.edu/erddap/tabledap/dO18StableIsotopesCruise 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 Sources of oceanic freshwater content along the western Antarctic Peninsula (PAL-LTER Study Region) determined by the stable isotope composition (d18O) of seawater. 2022-03-29 creation 2022-03-29 issued John Kerfoot National Science Foundation kerfoot@marine.rutgers.edu https://pal.lternet.edu/ information web browser Background Information Background information from the source information originator Melanie Leng,Hugh Ducklow,Micheal Meredith mjl@bgs.ac.uk,hducklow@ldeo.columbia.edu,mmm@bas.ac.uk contributor The oceanic distribution of d18O is determined largely by the same processes that control salinity. Surface d18O reflects the magnitude and spatial distribution of freshwater inputs, and it is a conservative tracer in the ocean interior. The great benefit of d18O is obtained from the circumstances under which it exhibits behavior different to that of salinity. One such circumstance derives from the salinity and d18O values in precipitation, with salinity being constant with latitude (typically zero), while in general d18O in precipitation becomes progressively isotopically lighter toward the poles. This results in glacial ice (which derives from high-latitude precipitation) being very isotopically light, enabling d18O to be a useful tracer of glacial discharge to the ocean (e.g., Schlosser et al. 1990; Weiss et al. 1979). Another difference occurs in regions influenced by sea ice, which greatly affects salinity during its formation/melt cycle but has only minimal impact on d18O. This decoupling of the two tracers allows them to be used in tandem to quantitatively separate freshwater inputs from sea ice melt and those from meteoric sources (precipitation plus glacial discharge). For this, a simple three-endmember mass balance can be used. For details please see Meredith, M. P., H. J. Venables, A. Clarke, H. W. Ducklow, M. Erickson, M. J. Leng, J. T. M. Lenaerts, and M. R. van den Broeke. 2013. The freshwater system west of the Antarctic Peninsula: Spatial and temporal changes. Journal of Climate 26:1669-1684. OPeNDAP 1 -77.965 -64.04667 -70.08833 -63.963333 seconds 2011-01-07T00:00:00Z 2014-01-27T00:00:00Z -3713.681 -0.104 tight OPeNDAPDatasetQueryAndAccess https://pallter-data.marine.rutgers.edu/erddap/tabledap/dO18StableIsotopesCruise 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 Sources of oceanic freshwater content along the western Antarctic Peninsula (PAL-LTER Study Region) determined by the stable isotope composition (d18O) of seawater. 2022-03-29 creation 2022-03-29 issued John Kerfoot National Science Foundation kerfoot@marine.rutgers.edu https://pal.lternet.edu/ information web browser Background Information Background information from the source information originator Melanie Leng,Hugh Ducklow,Micheal Meredith mjl@bgs.ac.uk,hducklow@ldeo.columbia.edu,mmm@bas.ac.uk contributor The oceanic distribution of d18O is determined largely by the same processes that control salinity. Surface d18O reflects the magnitude and spatial distribution of freshwater inputs, and it is a conservative tracer in the ocean interior. The great benefit of d18O is obtained from the circumstances under which it exhibits behavior different to that of salinity. One such circumstance derives from the salinity and d18O values in precipitation, with salinity being constant with latitude (typically zero), while in general d18O in precipitation becomes progressively isotopically lighter toward the poles. This results in glacial ice (which derives from high-latitude precipitation) being very isotopically light, enabling d18O to be a useful tracer of glacial discharge to the ocean (e.g., Schlosser et al. 1990; Weiss et al. 1979). Another difference occurs in regions influenced by sea ice, which greatly affects salinity during its formation/melt cycle but has only minimal impact on d18O. This decoupling of the two tracers allows them to be used in tandem to quantitatively separate freshwater inputs from sea ice melt and those from meteoric sources (precipitation plus glacial discharge). For this, a simple three-endmember mass balance can be used. For details please see Meredith, M. P., H. J. Venables, A. Clarke, H. W. Ducklow, M. Erickson, M. J. Leng, J. T. M. Lenaerts, and M. R. van den Broeke. 2013. The freshwater system west of the Antarctic Peninsula: Spatial and temporal changes. Journal of Climate 26:1669-1684. ERDDAP Subset 1 -77.965 -64.04667 -70.08833 -63.963333 seconds 2011-01-07T00:00:00Z 2014-01-27T00:00:00Z -3713.681 -0.104 tight ERDDAP_Subset https://pallter-data.marine.rutgers.edu/erddap/tabledap/dO18StableIsotopesCruise.subset search Subset Web page to facilitate selecting subsets of the dataset download physicalMeasurement study_name String Study grid_station String grid_station time double Time event short event cast_number short cast_number bottle byte bottle pressure double sea_water_pressure o18_sample_number short o18_sample_number oxygen18_content double oxygen18_content salinity_00 double sea_water_practical_salinity salinity_11 double sea_water_practical_salinity sigmat_00 double sea_water_sigma_t sigmat_11 double sea_water_sigma_t temperature_090c double sea_water_temperature temperature_190c double sea_water_temperature transmissivity double transmissivity par double downwelling_photosynthetic_photon_radiance_in_sea_water sbeox0v_oxygen_concentration_voltage double sbeox0v_oxygen_concentration_voltage sbeox1v_oxygen_concentration_voltage double sbeox1v_oxygen_concentration_voltage oxygen_concentration_0 double mass_concentration_of_oxygen_in_sea_water oxygen_concentration_1 double mass_concentration_of_oxygen_in_sea_water chlorophyll_a double mass_concentration_of_chlorophyll_a_in_sea_water Sage Rutgers University - DMCS +1 848-932-3344 71 Dudley Road New Brunswick NJ 08901 USA sage@marine.rutgers.edu distributor OPeNDAP DAP/2.0 https://pallter-data.marine.rutgers.edu/erddap/tabledap/dO18StableIsotopesCruise.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://pallter-data.marine.rutgers.edu/erddap/tabledap/dO18StableIsotopesCruise.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 local files This record was created from dataset metadata by ERDDAP Version 2.31.1