Python query on Common Metadata Repository

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gbourdin
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Python query on Common Metadata Repository

by gbourdin » Wed Sep 16, 2020 11:45 am America/New_York

Hello,
I am looking for key words to use in a query on the Common Metadata Repository.
I couldn't find L1A scenes for MODISA, MODIST or VIIRSN on the CMR. I have tried with two provider_id:
- OB_DAAC doesn't seem to provide any L1 data
- LAADS probably does but I couldn't figure out which key word to use to find the appropriate granules
I couldn't find either any document listing the key words to use to search collections or granules by parameters as explained in https://cmr.earthdata.nasa.gov/search/site/docs/search/api.html#collection-search-by-parameters
Does such document exist at all?
Thank you,
Guillaume

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OB ODPS - towens
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Python query on Common Metadata Repository

by OB ODPS - towens » Wed Sep 16, 2020 1:03 pm America/New_York

Those L1A data are not yet cataloged in CMR, but will be included in the near future,
Tommy

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Python query on Common Metadata Repository

by OB.DAAC - amscott » Wed Sep 16, 2020 1:17 pm America/New_York

In the meantime, please view additional ways you can download your data here: https://oceancolor.gsfc.nasa.gov/data/download_methods/

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Python query on Common Metadata Repository

by OB.DAAC - SeanBailey » Thu Sep 17, 2020 8:45 am America/New_York

Guillaume,
You can use the EarthData search tool to find the information on the collections you are interested in retrieving, including the MODIS and VIIRS L1 data

For example, MODIS Terra GEO files (v6.1, the latest) has a shortname of MOD03, so:

https://cmr.earthdata.nasa.gov/search/granules.umm_json?page_size=10&sort_key=short_name&sort_key=start_date&short_name=MOD03&version=6.1


The VIIRS-SNPP GEO have a shortname of VNP03MODLLVersion, so:

https://cmr.earthdata.nasa.gov/search/granules.umm_json?page_size=10&sort_key=short_name&sort_key=start_date&short_name=VNP03MODLL


Sean

gbourdin
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Python query on Common Metadata Repository

by gbourdin » Thu Sep 17, 2020 11:04 am America/New_York

I see, thanks a lot
Best,
Guillaume

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