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Please contact us if there are any discrepancies or inaccuracies found below.
| Persistent ID | PODAAC-TELND-NC004 |
| Short Name | TELLUS_LAND_NC |
| Description | The monthly land mass grids contain terrestrial water masses (aquifers, river basins, etc.) given as equivalent water thickness derived from GRACE gravity data, in NetCDF format. Equivalent water thickness is used to represent changes in water mass as height changes since the area of a grid pixel remains only the height can change as the amount of water changes. The time coverage for the monthly grids are determined by GRACE months. For the list of GRACE month dates visit http://grace.jpl.nasa.gov/data/GraceMonths/. For information please visit http://grace.jpl.nasa.gov/data/gracemonthlymassgridsland/ |
| Journal Reference | Swenson, S. C. and J. Wahr, 2006. Post-processing removal of correlated errors in GRACE data, Geophys. Res. Lett., 33, L08402, doi:10.1029/2005GL025285. |
| Dataset Type | OPEN |
| Measurement | Solid Earth > Geodetics/Gravity > Gravity |
| Processing Level | 3 |
| Coverage | Region: Global Northernmost Latitude: 89.5 degrees Southernmost Latitude: -89.5 degrees Westernmost Longitude: 0 degrees Easternmost Longitude: 360 degrees Time Span: 2002-Jul-31 to Present |
| Resolution | Spatial Resolution: 1 degrees (Latitude) x 1 degrees (Longitude) Temporal Resolution: 1 month |
| Projection | Type: Grid Detail: - Ellipsoid: WGS84 |
| Latency | - |
| Platform/Sensor | GRACE / Platform Name: Gravity Recovery and Climate Experiment (GRACE) Orbit Period: - minutes Inclination Angle: 89 degrees Ascending Node: - GRACE ACC SENSOR Name: GRACE SuperSTAR Accelerometer (GRACE ACC) Swath Width: - km Description: The accelerometer, located at the center of mass of each satellite, measures all non-gravitational forces acting on each satellite. These forces include air drag, solar radiation pressure, and attitude control activator operation. GRACE / Platform Name: Gravity Recovery and Climate Experiment (GRACE) Orbit Period: - minutes Inclination Angle: 89 degrees Ascending Node: - GRACE SCA SENSOR Name: Star Camera Assembly (GRACE SCA) Swath Width: - km Description: The two star cameras mounted close to the accelerometer on each satellite provide the precise attitude references for the satellites when making science measurements. GRACE / Platform Name: Gravity Recovery and Climate Experiment (GRACE) Orbit Period: - minutes Inclination Angle: 89 degrees Ascending Node: - GRACE KBR SENSOR Name: K-Band Ranging System (GRACE KBR) Swath Width: - km Description: This instrument precisely measures the changes in the separation between the two GRACE satellites using phase tracking of K- and Ka-band signals sent between the two satellites |
| Project | Making Earth Science Data Records for Use in Research Environments (MEaSUREs) |
| Data Provider | Creator: S.C. Swenson Release Place: JPL Release Date: 2010-Dec-31 Resource: http://grace.jpl.nasa.gov/data/gracemonthlymassgridsland/ |
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
| OPENDAP | http://podaac-opendap.jpl.nasa.gov/opendap/allData/tellus/L3/land_mass/RL04/netcdf/ |
| FTP | ftp://podaac-ftp.jpl.nasa.gov/allData/tellus/L3/land_mass/RL04/netcdf |
| Format (Compression) | NETCDF (NONE) |
