Gravity data

[bext_la]

Hi

Has Grace completed its lifespan? The product has an expiration date of May 20, 2024. Is there any updated data available for Gravity data?

[GES DISCx - jimacker]

Your question should be directed to the Physical Oceanography DAAC (PODAAC). I have added the tags to your message. Gravity data is now being acquired by the GRACE Follow-On (GRACE-FO) mission. https://gracefo.jpl.nasa.gov/data/grace-fo-data/

[colleen]

Thank you for your inquiry.

GRACE-FO picked up where GRACE left off.

GRACE-FO data are ongoing and are scheduled to produced data past May 2024, hopefully until 2028.
Do you mind me asking where you got the May 2024 date from?

For additional information, please see the following PO.DAAC GRACE-FO Mission page:
https://podaac.jpl.nasa.gov/GRACE-FO?tab=mission-objectives&sections=about%2Bdata

Respectfully,
Colleen Schroeder
PO.DAAC User Services

[bext_la]

Hi colleen
Thanks for respond.

Which level choose for data download? May you provide direct link to get data?

l could not find how to download data?

[colleen]

To access the GRACE-FO data, you will need to make a free NASA Earthdata Login Account: https://urs.earthdata.nasa.gov/users/new

Once you select a dataset from https://podaac.jpl.nasa.gov/GRACE-FO?sections=data, it will take you to the “dataset information” page, where you will see a “data access” tab, which will take you directly to the data and other provided links and tools.

For example, to download the following GRACE-FO Level-2 Monthly Geopotential Spherical Harmonics CSR Release 06.2 (RL06.2) product: https://podaac.jpl.nasa.gov/dataset/GRACEFO_L2_CSR_MONTHLY_0062, you can find the download methods under Data Access tab.
---------------------------------------------------------------
DIRECT ACCESS
Browse Granule Listing
https://cmr.earthdata.nasa.gov/virtual-directory/collections/C2753948997-POCLOUD

Search Granules
https://search.earthdata.nasa.gov/search/granules?p=C2753948997-POCLOUD
---------------------------------------------------------------
In addition to this, you can also search for the data under the “Find Data” tab at the top of the PO.DAAC page by selecting from the filter options on the left-hand side of the page or by visiting https://podaac.jpl.nasa.gov/cloud-datasets?view=list&ids=Projects&values=GRACE-FO

You may also want to take a look at the following link, as this page runs through the Earthdata Search flow: https://podaac.github.io/tutorials/external/earthdata_search.html

Respectfully,
PO.DAAC User Services

[bext_la]

Thank you for responding.

Which level should be selected for utilising gravity data? What is the difference?

Explore Granule The listing does not have access to get data. Furthermore, it fails to sign in. It reverts to the previous window.

Thanks for sharing github page, it useful to download data.

[PODAAC - deanh808]

Hi,

The abstract for the L2 collection you are showing, it emphasizes expert use only. Is gravity the variable you want, or derived products such as liquid water equivalent thickness? If so, check out the Level 3 data sets: https://podaac.jpl.nasa.gov/cloud-datasets?ids=Projects%3AProcessing%20Levels&values=GRACE-FO%3A%3A3%20-%20Gridded%20Observations&view=list . I am able to download files from these data sets.

Do you want to download the entire data set or just specific files? The methods shown previously will work, another tool to consider is the podaac-data-subscriber (https://github.com/podaac/data-subscriber) which will let you download the entire dataset in a single CLI command. You install it with Python.

Let me know which data set you are interested in and we can work from there.

Thanks,

Dean
Data Publication Team, PO.DAAC

[bext_la]

Thanks for sharing.

l need both (water and tectonic anomalies).
First try to solve water.

liquid water equivalent thickness has different level 3 data. which one choose?
https://podaac.jpl.nasa.gov/cloud-datasets?ids=Projects%3AProcessing%20Levels&values=GRACE-FO%3A%3A3%20-%20Gridded%20Observations&view=list

l chosen first one and noticed there are monthly data till 2024 March.

[PODAAC - deanh808]

For water storage try this product: https://podaac.jpl.nasa.gov/dataset/TELLUS_GRFO_L3_CSR_RL06.2_LND_v04 .

For gravity anomalies, you may have to get your hands dirty in some Level 2 data, which is going to take more work. To use those products, check out the documentation page https://podaac.jpl.nasa.gov/gravity/gracefo-documentation , there are a lot of resources here.

- Dean