Hi,

Scale factors, measurement and leakage errors were shared in the previous release (Level 3, RL-05). However, these are not available in the current GRACE and GRACE-FO datasets. Has any information been shared on how to calculate the uncertainty in the TWS data?

Thanks a lot.

Using 3-degree mascons as a basis function acts as an inherent smoother on the data. Therefore, the GRACE/Tellus Project has derived a set of scale factors (what are also referred to as global gain factors) to aid in the interpretation of signals at sub-mascon resolution. ...

The following link provides a list of relevant GRACE and Tellus publications through peer-reviewed science journals: http://grace.jpl.nasa.gov/publications/ Note: this list is not maintained by PO.DAAC. For any questions or concerns about this list, ...

How can i know the passing time of the GRACE satellite over a location? Particularly in the following coordinates, latitudes 13.5,14.5,15.5 and longitudes 76.5,77.5,78.5

There is no official "GRACE Global Groundwater Data”. What one does is get the GRACE Total Terrestrial Water Storage Anomaly (TWSA). For example: https://podaac-opendap.jpl.nasa.gov/opendap/allData/tellus/L3/mascon/RL05/JPL/CRI/netcdf/ ...

The batteries onboard GRACE have degraded over time so the instrument is turned off when the satellite is in eclipse (in Earth's shadow) and turned back on when in sunlight since the batteries are solar charged.

JPL/GFZ/CSR GRACE Level 3 RL06 Monthly Ocean/Land Mass Anomaly Datasets Release DOI: 10.5067/TELND-3AJ06 10.5067/TEOCN-3AJ06 10.5067/TELND-3AC06 10.5067/TEOCN-3AC06 10.5067/TELND-3AG06 10.5067/TEOCN-3AG06 PO.DAAC is pleased to ...

Animation of the ocean/land mass anomaly over the period April 2002 to June 2017 from the JPL GRACE MASCON RL06M CRI dataset. The dataset can be accessed from PODAAC Portal at https://podaac.jpl.nasa.gov/dataset/TELLUS_GRACE_MASCON_CRI_GRID_RL06_V1 (DOI:10.5067/TEMSC-3MJC6) ...

Thank you for your inquiry. Please see the following response from the GRACE science team: Neither GRACE nor GRACE-FO have a repeat orbit, so there is no such thing as a specific time at which the satellites pass over a specific location during the month. The ...

JPL/GFZ/CSR GRACE and GRACE-FO Level 3 Monthly Ocean Mass Anomaly RL06 version 02 Datasets Release DOI: 1. https://doi.org/10.5067/TEOCN-3AJ62 2. https://doi.org/10.5067/TEOCN-3AC62 3. https://doi.org/10.5067/TEOCN-3AG62 4. https://doi.org/10.5067/GFOCN-3AJ62 ...