![COPERNICUS/MARINE/INSITU_MULTI_4KM/ARGO](https://developers.google.com/earth-engine/datasets/images/COPERNICUS/COPERNICUS_MARINE_INSITU_MULTI_4KM_ARGO_sample.png) Dataset Producer : [Copernicus](https://marine.copernicus.eu/) Tags : [copernicus](https://developers.google.com/earth-engine/datasets/tags/copernicus) [currents](https://developers.google.com/earth-engine/datasets/tags/currents) [insitu](https://developers.google.com/earth-engine/datasets/tags/insitu) [oceans](https://developers.google.com/earth-engine/datasets/tags/oceans) #### Description The In Situ TAC is a distributed centre organized around 7 oceanographic regions: the global ocean and the 6 EUROGOOS regional alliances. It involves 14 partners from 11 countries in Europe. It doesn't deploy any observing system and relies on data, exclusively funded by other sources than Copernicus Marine Service. This dataset is derived from the original trajectory data from Argo GDAC (Global Data Assembly Center). In 2020, the GDAC distributes data from more than 15,000 Argo floats. Deep ocean current is calculated from floats drift at parking depth, surface current is calculated from float surface drift. For more details refer to this [user manual](https://documentation.marine.copernicus.eu/PUM/CMEMS-INS-PUM-013-048.pdf) ### BigQuery Table Schema **Table Schema** | Name | Type | Description | |---|---|---| | TIME | DATETIME | Datetime of the observation | | DEPTH | DOUBLE | Number of depth levels | | LATITUDE | DOUBLE | Latitude of the observation | | LONGITUDE | DOUBLE | Longitude of the observation | | PRES | DOUBLE | Representative pressure of the current observation. Can be 0 or parking depth pressure (decibar). | | TRAJECTORY | STRING | Trajectory identifier | | PRES_QC | INT | Quality control flag for PRES. - 0: No QC was performed - 1: good - 2: probably good - 3: Bad data that are potentially correctable - 4: Bad data - 5: value changed - 6: Not used - 7: nominal - 8: interpolated - 9: Missing value Note that a valid value for the corresponding variable has a QC bit equal to 1, 2, 5, 7, or 8. | | EWCT | DOUBLE | West-East sea water velocity at the representative pressure (m/s) | | EWCT_QC | INT | Quality control flag for EWCT. - 0: No QC was performed - 1: good - 2: probably good - 3: Bad data that are potentially correctable - 4: Bad data - 5: value changed - 6: Not used - 7: nominal - 8: interpolated - 9: Missing value Note that a valid value for the corresponding variable has a QC bit equal to 1, 2, 5, 7, or 8. | | NSCT | DOUBLE | South-North sea water velocity at the representative pressure (m/s) | | NSCT_QC | INT | Quality control flag for NSCT. - 0: No QC was performed - 1: good - 2: probably good - 3: Bad data that are potentially correctable - 4: Bad data - 5: value changed - 6: Not used - 7: nominal - 8: interpolated - 9: Missing value Note that a valid value for the corresponding variable has a QC bit equal to 1, 2, 5, 7, or 8. | | TIME_QC | INT | Quality control flag for TIME. - 0: No QC was performed - 1: good - 2: probably good - 3: Bad data that are potentially correctable - 4: Bad data - 5: value changed - 6: Not used - 7: nominal - 8: interpolated - 9: Missing value Note that a valid value for the corresponding variable has a QC bit equal to 1, 2, 5, 7, or 8. | | POSITION_QC | INT | Quality control flag for POSITION. - 0: No QC was performed - 1: good - 2: probably good - 3: Bad data that are potentially correctable - 4: Bad data - 5: value changed - 6: Not used - 7: nominal - 8: interpolated - 9: Missing value Note that a valid value for the corresponding variable has a QC bit equal to 1, 2, 5, 7, or 8. | | CYCLE_NUMBER | DOUBLE | Cycle number of the Argo float | | GROUNDED | STRING | Indicates the best estimate of whether the float touched the ground for that cycle. The conventions are described below: - Y: Yes, the float touched the ground - B: Yes, the float touched the ground after bathymetry check with an outside database - N: No, the float did not touch the ground - S: Float is known to be drifting at a shallower depth than originally programmed - U: Unknown | | DURATION | DOUBLE | Duration of measurement | | geometry | GEOMETRY | Geographic location of the observation | ### Terms of Use The data is provided free of charge by the Copernicus Marine Service. Users must acknowledge the Copernicus Marine Service as the data source when using the data. More details on the terms of use can be found on the [Copernicus Marine Service website](https://marine.copernicus.eu/user-corner/service-commitments-and-licence). ### Terms of Use **Terms of Use** The data is provided free of charge by the Copernicus Marine Service. Users must acknowledge the Copernicus Marine Service as the data source when using the data. More details on the terms of use can be found on the [Copernicus Marine Service website](https://marine.copernicus.eu/user-corner/service-commitments-and-licence). ### Explore with Earth Engine > [!NOTE] > **Important:** Earth Engine is a platform for petabyte-scale scientific analysis and visualization of geospatial datasets, both for public benefit and for business and government users. Earth Engine is free to use for research, education, and nonprofit use. To get started, please [register for Earth Engine access.](https://console.cloud.google.com/earth-engine) ### Code Editor (JavaScript) ```javascript var dataset = ee.FeatureCollection.loadBigQueryTable("earth-engine-public-data.insitu_nrt_currents.argo_latest") .filter(ee.Filter.date('2025-04-01', '2025-05-01')); dataset = dataset.map(function(f) { var val = ee.Number(f.get('EWCT')).float(); return f.buffer(8000) // 8km radius circles .set('EWCT', val); }); var image = dataset.reduceToImage({ properties: ['EWCT'], reducer: ee.Reducer.first() }); var visParams = { min: -0.5, max: 0.5, palette: ['a50026', 'd73027', '333333', '4575b4', '313695'], }; Map.setCenter(-100.5, 30.2, 3); Map.addLayer(image, visParams, 'Global INSITU Argo EWCT'); ``` [Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/COPERNICUS/COPERNICUS_MARINE_INSITU_MULTI_4KM_ARGO) [Copernicus Global In-situ Observations of Ocean Currents - Argo](https://developers.google.com/earth-engine/datasets/catalog/COPERNICUS_MARINE_INSITU_MULTI_4KM_ARGO) The In Situ TAC is a distributed centre organized around 7 oceanographic regions: the global ocean and the 6 EUROGOOS regional alliances. It involves 14 partners from 11 countries in Europe. It doesn't deploy any observing system and relies on data, exclusively funded by other sources than Copernicus Marine Service. ... COPERNICUS/MARINE/INSITU_MULTI_4KM/ARGO, copernicus,currents,insitu,oceans 2025-03-28T00:00:00Z -90 -180 90 180 Google Earth Engine https://developers.google.com/earth-engine/datasets - [](https://doi.org/https://marine.copernicus.eu/) - [](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/COPERNICUS_MARINE_INSITU_MULTI_4KM_ARGO)