Global surface mass changes (land + ocean) updated monthly, and is provided on 0.5-degree global grids.This data browser allows the interactive retrieval of GRACE & GRACE-FO Land data over river basins, as well as the evaluation of long-term trends and mean seasonal amplitudes.Land water storage from GRACE is updated monthly, and is provided on 1-degree global grids.Ocean bottom pressure from GRACE is updated monthly, and is provided on 1-degree global grids.Global surface mass (land + ocean) from GRACE is updated monthly. After averaging the soil moisture data into monthly anomalies, the time series is low‐pass filtered in the same way as the GRACE time series, and scaled using the factor derived in the preceding section. In this study, we use in-situ SSM (0–5 cm) data from the International Soil Moisture Network (ISMN) (Dorigo et al., 2011) and remote sensing observations from GRACE, SMAP and SMOS satellites including: the JPL GRACE Mascon terrestrial water storage anomaly (Wiese et al., 2018) from May 2002 to May 2017 at 0.5-degree grid resolution, but representing the 3-degree equal-area caps, … 2004). Scientists at NASA’s Goddard Space Flight Center generate groundwater and soil moisture drought indicators each week.

This data set contains three drought indicator variables: Groundwater Percentile, Root Zone Soil Moisture Percentile, and Surface Soil Moisture Percentile, which are derived from the outputs of the GRACE Catchment Land Surface Model Data Assimilation. The drought indicators describe current wet or dry conditions, expressed as a percentile showing the probability of occurrence for that particular location and time of year, with lower values (warm colors) meaning dryer than normal, and higher values (blues) meaning wetter than normal.

The model is driven into the future using downscaled seasonal meteorological forecasts from NASA’s GEOS-5 Earth system model. Scientists generate groundwater and soil moisture … Over land, red colors indicate below-average terrestrial water amounts, while blue colors show above-average water amounts (including ice, snow, soil moisture and groundwater. Such remote sensing observations include soil moisture information from the L-band Soil Moisture and Ocean Salinity (SMOS) and Soil Moisture Active Passive (SMAP) missions, and TWS information from the Gravity Recovery And Climate Experiment (GRACE). The drought indicators describe current wet or dry conditions, … These findings demonstrate the added value of multivariate DA for simultaneously improving different model states, thus leading to a more robust DA system.We use cookies to help provide and enhance our service and tailor content and ads. Please visit the This is another GRACE solution using the mascon approach from the team at NASA-GSFC. However, SMOS and GRACE data imparted opposite water variations in east Australia, where SMOS decreased the soil moisture and GRACE increased the soil moisture. These are provided as both images and binary data files. They are based on terrestrial water storage observations derived from GRACE-FO satellite data and integrated with other observations, using a sophisticated numerical model of land surface water and energy processes. Monthly estimates of the time-variable geopotential up to degree and order 5 determined from satellite laser ranging from up to five geodetic satellites. These are provided as both images and binary data files.The Contiguous U.S. (CONUS) indicators are generated at 0.125 degree, while the Global Land indicators are at 0.25 degree resolution (Global/Africa/Asia/Australia/Europe/North America/South America areas above).Using the GRACE-FO based moisture conditions as a starting point, NASA scientists forecast groundwater and soil moisture wetness or drought 1, 2, and 3 months into the future.