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OAS accession Detail for 0259304
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| accessions_id: | 0259304 | archive |
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| Title: | GOBAI-O2: A Global Gridded Monthly Dataset of Ocean Interior Dissolved Oxygen Concentrations Based on Shipboard and Autonomous Observations (NCEI Accession 0259304) |
| Abstract: | This dataset contains a global gridded data product of observation-based ocean interior dissolved oxygen concentrations. The data product is called GOBAI-O2 for Gridded Ocean Biogeochemistry from Artificial Intelligence - Oxygen. The dissolved oxygen fields were constructed by training machine learning algorithms with observations from shipboard analyses and autonomous profiling floats, then applying those trained algorithms to global gridded fields of temperature and salinity. Those temperature and salinity fields were calculated from a long-term mean field and monthly anomaly fields constructed from the global array of Argo floats (Roemmich and Gilson, 2009), and are presented alongside GOBAI-O2 for easy analysis. Also presented are uncertainty fields for dissolved oxygen, which were calculated by combining three separate sources of uncertainty as described in Sharp et al. (2023), see the Documentation. The scope and resolution of GOBAI-O2 are as follows: geographically, from -179.5 to 179.5 degrees longitude and -64.5 to 79.5 degrees latitude at 1-degree resolution; with respect to pressure, from 2.5 to 1975 decibars on 58 levels that become incrementally further spaced; and temporally, from January 2004 to December 2023 at monthly resolution. The algorithms used to produce GOBAI-O2 have been validated using real observations and synthetic data from model output, and the data product itself has been compared against the World Ocean Atlas and selected discrete measurements. Results of these validation and comparison exercises are detailed in Sharp et al. (2023). Data are in netCDF, Figures are in PNG. |
| Date received: | 20240527 |
| Start date: | 20040101 |
| End date: | 20231231 |
| Seanames: | World-Wide Distribution |
| West boundary: | -179.5 |
| East boundary: | 179.5 |
| North boundary: | 79.5 |
| South boundary: | -64.5 |
| Observation types: | chemical, derived products, physical |
| Instrument types: | CTD, oxygen sensor |
| Datatypes: | DISSOLVED OXYGEN, SALINITY, WATER TEMPERATURE |
| Submitter: | Sharp, Dr. Jonathan D. |
| Submitting institution: | University of Washington Cooperative Institute for Climate, Ocean and Ecosystem Studies |
| Collecting institutions: | University of Washington Cooperative Institute for Climate, Ocean and Ecosystem Studies, US DOC; NOAA; OAR; Geophysical Fluid Dynamics Laboratory, US DOC; NOAA; OAR; Pacific Marine Environmental Laboratory |
| Contributing projects: | |
| Platforms: | |
| Number of observations: | |
| Supplementary information: | Submission Package ID: 0YT5YJ This dataset contains multiple versions. The highest is the most complete. In this accession, NCEI has archived multiple versions of these data. The latest (and best) version of these data has the largest version number. |
| Availability date: | |
| Metadata version: | 10 |
| Keydate: | 2022-08-26 18:00:31+00 |
| Editdate: | 2024-05-28 15:50:27+00 |