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Re: How to quantify GRACE uncertainty?

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.
by assilina
Sun Apr 26, 2020 2:22 pm
 
Forum: General Questions
Topic: How to quantify GRACE uncertainty?
Replies: 4
Views: 6028

Why do I need GRACE Tellus Mascon Scale Factors?

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. This approach is similar to...
by dmoroni
Tue Mar 08, 2016 2:26 pm
 
Forum: Gravity FAQ
Topic: Why do I need GRACE Tellus Mascon Scale Factors?
Replies: 0
Views: 6881

Where can I obtain a list of science publications for GRACE?

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, please contact the site manager at the following l...
by dmoroni
Tue Mar 08, 2016 2:35 pm
 
Forum: Gravity FAQ
Topic: Where can I obtain a list of science publications for GRACE?
Replies: 0
Views: 8190

passing time of the GRACE satellite

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
by jyolsna
Tue Aug 20, 2019 1:36 am
 
Forum: General Questions
Topic: passing time of the GRACE satellite
Replies: 1
Views: 6600

Re: GRACE Global Groundwater Data

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/ Then, based on estimates of other components of the terrest...
by mgierach
Tue Mar 27, 2018 9:03 am
 
Forum: General Questions
Topic: GRACE Global Groundwater Data
Replies: 1
Views: 7959

Re: Strange Range Values in GRACE KBR Data

Hi Samuel, Thanks for the nice note. To get to the heart of your question: we simply don’t measure absolute range with the K/Ka-Band ranging system. You can use this data to determine how the relative range of the two spacecraft changes over time, but keep in mind there is an absolute bias between t...
by podaac
Thu Mar 28, 2019 10:39 am
 
Forum: Data Access
Topic: Strange Range Values in GRACE KBR Data
Replies: 1
Views: 3107

Complete historical records of GRACE Level-2 RL06 datasets

The PO.DAAC is pleased to announce that the complete historical data records of GRACE Level 2 Release 06 (RL06) datasets are available. The complete records include all available historical data from April 2002 to June 2017. The initial publications for the RL06 datasets were released on 07/16/2018 ...
by podaac
Wed Apr 10, 2019 4:01 pm
 
Forum: PODAAC General Announcements
Topic: Complete historical records of GRACE Level-2 RL06 datasets
Replies: 0
Views: 747

JPL GRACE-FO Level 1A/1B ASCII RL04 Datasets Release

DOI: 10.5067/GFL1B-ASJ04 10.5067/GFL1A-ASJ04 The Gravity Recovery and Climate Experiment Follow-On (GRACE-FO) project and PO.DAAC are pleased to announce the public release of the JPL GRACE-FO Level 1A/1B ASCII Release-04 (RL04) datasets. The GRACE-FO mission, a joint partnership between NASA and th...
by podaac
Thu May 23, 2019 9:43 pm
 
Forum: PODAAC General Announcements
Topic: JPL GRACE-FO Level 1A/1B ASCII RL04 Datasets Release
Replies: 0
Views: 676

JPL/GFZ/CSR GRACE-FO L2 Monthly Geopotential Spherical ...

CORRECTION: JPL/GFZ/CSR GRACE-FO Level 2 Monthly Geopotential Spherical Harmonics Solution RL06 Datasets Release Correction: The release of GRACE-FO Level 2 RL06 contains the 9 monthly gravity field coefficient datasets from June-2018 through Apr-2019, Including [06, 07, 10, 11, 12]-2018 and [01, 0...
by podaac
Thu Jun 13, 2019 11:13 am
 
Forum: PODAAC General Announcements
Topic: JPL/GFZ/CSR GRACE-FO L2 Monthly Geopotential Spherical ...
Replies: 0
Views: 714

2020 GRACE Follow-On Science Team Meeting

PO.DAAC team members will be attending and presenting at the Virtual 2020 GRACE Follow-On Science Team Meeting this week, October 27-29.

To view schedule, please see:
https://www.gstm-2020.eu/abstracts_and_ ... ogram.html
by podaac
Sat Oct 24, 2020 11:45 am
 
Forum: PO.DAAC Meetings and Workshops
Topic: 2020 GRACE Follow-On Science Team Meeting
Replies: 0
Views: 380
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