dataset · Global

NASA modis-terra Project

Mission Objectives: The Surface Water and Ocean Topography (SWOT) mission aims to provide valuable data and information about the world's oceans and its terrestrial surface water such as lakes, rivers, and wetlands. SWOT is being developed jointly by NASA and Centre National D'Etudes Spatiales (CNES), with contributions from the Canadian Space Agency (CSA) and United Kingdom Space Agency (UKSA). <br> #### MITgcm_LLC4320_Pre-SWOT_JPL_L4_BassStrait_v1.0 This dataset provides a regional multivariat

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Source details

Licence: [Creative Commons BY 4.0](https://creativecommons.org/licenses/by/4.0/)

Evidence quality: 48.3

Listed in aws-odr public catalogue API on 2026-10-16; relevance/value screened (haiku).

Metadata checked: 2026-10-14T13:20:00.000Z

What's in it

Data offered docs-verified: hourly 3D ocean temperature, salinity and velocity (MITgcm LLC4320 regional state estimates: Bass Strait, Boknis/Baltic, Cape Basin, Gotland Basin) · hourly 2D ocean sea level anomaly, mixed layer thickness, bottom pressure anomaly, net freshwater/heat/salt flux, shortwave flux, ocean surface stress · fast ice and glacial ice boundaries for 8 SE Greenland fjords (NSIDC-0796) · passive microwave brightness temperature, EASE-Grid 2.0 (NSIDC-0630) · Himawari-8 AHI Deep Blue aerosol, daily and monthly 1x1 degree (AERDB_D3/M3_AHI_H08) · High Mountain Asia glacier mass change, runoff and mass balance projections (HMA2_GGP) · baroclinic tide harmonic constants for M2, S2, N2, K1, O1 (BAROCLINIC_HRET14)
Coverage docs-verified: Bass Strait, Baltic Sea (Boknis, Gotland Basin), Cape Basin, SE Greenland fjords, Himawari-8 AHI field, High Mountain Asia glaciers, global (baroclinic tide grid) · May 2019 to April 2020 for the AERDB aerosol products; 1993 to 2021 for baroclinic tide constants; other periods not stated
Resolution docs-verified: 1/48-degree (about 2 km at equator) ocean model grid with hourly output; 1x1 degree daily/monthly aerosol grid; 1/20-degree baroclinic tide grid
Update frequency docs-verified: Aerosol products: produced daily (D3) and monthly (M3); ocean state estimates: hourly output. No ongoing update schedule stated.
Formats docs-verified: netCDF4
Access llm-inferred: Free and open, no authentication listed in entry metadata. Licence: Creative Commons BY 4.0 (per entry metadata).

Useful for

Use cases llm-inferred: Tidal sea-level and surface-current boundary inputs for coastal or estuarine flood and drainage outfall modelling (BAROCLINIC_HRET14) · Ocean temperature, salinity and velocity boundary conditions for regional marine water-quality or outfall dispersion studies (MITgcm LLC4320) · Sea-ice and glacier context for cryosphere or water-balance baselines in non-UK regions (NSIDC-0630, NSIDC-0796, HMA2_GGP)
Audience llm-inferred: coastal engineers · hydrologists · marine and ocean modellers · environmental consultants (marine water quality) · GIS analysts

Limitations

Constraints llm-inferred: Entry name 'NASA modis-terra Project' and categories (hydrology, terrain) do not match the described content (SWOT, MITgcm, NSIDC, Himawari aerosol, glacier and tide datasets); confirm which dataset this entry refers to · No UK coverage is stated in the docs; the regional ocean sets cover Bass Strait, Baltic and South Atlantic/Gotland areas · Aerosol products are a first release covering May 2019 to April 2020 only · Fast-ice product temporal coverage is discontinuous, depending on image availability · Baroclinic tide data are harmonic constants; predicting tides or currents requires the separate GitHub software · Glacier outputs are for High Mountain Asia, not UK catchments

Evidence

Check upstream coverage, uncertainty and licence before use. Station observations are not forecasts or design levels.