{"slug": "grace-mascons", "name": "GRACE and GRACE-FO Mascons", "tagline": "Monthly terrestrial water storage anomalies since 2002", "source": "NASA JPL", "category": {"slug": "observations", "name": "Observations", "icon": "pin", "tone": "slate"}, "meta": ["0.5° grid", "2002–present", "Global"], "thumb": "/static/catalog/thumbs/grace-mascons.11943e695776.jpg", "bbox": [-180.0, -90.0, 180.0, 90.0], "global": true, "access": "login", "url": "/datasets/grace-mascons/", "subtitle": "JPL GRACE/GRACE-FO Mascon solution, RL06.3", "summary": "Changes in total water storage (groundwater, soil moisture, snow, surface water) from satellite gravimetry. The only global observation of groundwater depletion at basin scale.", "categories": [{"slug": "observations", "name": "Observations", "icon": "pin", "tone": "slate"}], "sources": [{"slug": "nasa", "name": "National Aeronautics and Space Administration", "label": "NASA", "url": "https://www.earthdata.nasa.gov/", "page": "/sources/nasa/"}], "facts": [["Source", "NASA JPL"], ["Resolution", "0.5° grid (3° mascons)"], ["Time span", "2002–present"], ["Temporal", "Monthly (gap 2017 to 2018)"], ["Access type", "Download with free login"], ["Formats", "NetCDF"], ["Coverage", "Global"]], "access_note": "Free NASA Earthdata login", "coverage": "Global", "license": {"name": "Public domain (U.S. Government work)", "url": "https://www.earthdata.nasa.gov/engage/open-data-services-software-policies/data-use-guidance"}, "citation": "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", "doi": "", "landing_url": "https://grace.jpl.nasa.gov/", "provider_url": "https://grace.jpl.nasa.gov/", "methods": [{"type": "cmr", "label": "JPL mascon grids with the land/ocean filter (CRI), RL06.3 v4"}], "preview": {"type": "gibs", "layer": "GRACE_Tellus_Liquid_Water_Equivalent_Thickness_Mascon_CRI", "label": "GRACE liquid water equivalent (NASA GIBS)"}, "thumb_credit": "GRACE liquid water equivalent thickness (NASA GIBS)", "selection": [-75.0, -20.0, -50.0, 5.0], "selection_text": "-75,-20,-50,5", "snippets": {"curl": "# Earthdata login in ~/.netrc:\n# machine urs.earthdata.nasa.gov login USER password PASS\ncurl -fsSL \"https://hydrological.org/api/v1/datasets/grace-mascons/links.txt?bbox=-75,-20,-50,5\" \\\n  | xargs -n 1 curl -fLO --netrc -b ~/.urs_cookies -c ~/.urs_cookies", "python": "import earthaccess  # pip install earthaccess\n\nearthaccess.login()\nresults = earthaccess.search_data(short_name=\"TELLUS_GRAC-GRFO_MASCON_CRI_GRID_RL06.3_V4\", version=\"RL06.3Mv04\",\n                                  bounding_box=(-75, -20, -50, 5))\nearthaccess.download(results, \"data\")", "javascript": "const res = await fetch(\"https://hydrological.org/api/v1/datasets/grace-mascons/links?bbox=-75,-20,-50,5\");\nconst { groups } = await res.json();\nfor (const g of groups) g.links.forEach(l => console.log(l.url));"}, "api": {"links": "/api/v1/datasets/grace-mascons/links?bbox=-75,-20,-50,5", "manifest": "/api/v1/datasets/grace-mascons/manifest?bbox=-75,-20,-50,5"}}