Observations
GRACE and GRACE-FO Mascons
JPL GRACE/GRACE-FO Mascon solution, RL06.3. Monthly terrestrial water storage anomalies since 2002.
Changes in total water storage (groundwater, soil moisture, snow, surface water) from satellite gravimetry. The only global observation of groundwater depletion at basin scale.
- Source
- National Aeronautics and Space Administration
- Resolution
- 0.5° grid (3° mascons)
- Data type
- Raster
- Time span
- 2002–present
- Temporal
- Monthly (gap 2017 to 2018)
- Access type
- Download with free login · Free NASA Earthdata login
- Formats
- NetCDF
- Coverage
- Global (-180, -90, 180, 90)
- Licence
- Public domain (U.S. Government work)
- Provider page
- grace.jpl.nasa.gov/
Cite as. Watkins, M. M., et al. (2015). Improved methods for observing Earth's time variable mass distribution with GRACE using spherical cap mascons. JGR Solid Earth, 120, 2648–2671. https://doi.org/10.1002/2014JB011547
Access
cmrJPL mascon grids with the land/ocean filter (CRI), RL06.3 v4
Granules found through NASA's Common Metadata Repository (collection TELLUS_GRAC-GRFO_MASCON_CRI_GRID_RL06.3_V4 vRL06.3Mv04). Downloads need a free Earthdata login.
# Earthdata login in ~/.netrc:
# machine urs.earthdata.nasa.gov login USER password PASS
curl -fsSL "https://hydrological.org/api/v1/datasets/grace-mascons/links.txt?bbox=-75,-20,-50,5" \
| xargs -n 1 curl -fLO --netrc -b ~/.urs_cookies -c ~/.urs_cookiesimport earthaccess # pip install earthaccess
earthaccess.login()
results = earthaccess.search_data(short_name="TELLUS_GRAC-GRFO_MASCON_CRI_GRID_RL06.3_V4", version="RL06.3Mv04",
bounding_box=(-75, -20, -50, 5))
earthaccess.download(results, "data")const res = await fetch("https://hydrological.org/api/v1/datasets/grace-mascons/links?bbox=-75,-20,-50,5");
const { groups } = await res.json();
for (const g of groups) g.links.forEach(l => console.log(l.url));Also available as JSON: links · manifest · dataset record
