Page 1 of 1

NSIDC Request for New GCMD Keyword

Posted: Thu Jul 02, 2026 11:36 am America/New_York
by tkande86
NSIDC would like to request the following be added as a GCMD keyword:

Path: Projects -> P - R
Short name: PM-LT
Long name: Long-Term Passive Microwave Data
Definition: SMMR, SSM/I, SSMIS, and AMSR2 data include near-global passive microwave data from 1978 to present related to brightness temperature, sea ice concentration, sea ice age, snow-covered area, snow cover, snow water equivalent, snow melt, sea ice motion, and more.
Source: https://nsidc.org/data/smmr_ssmi

Thanks!

Re: NSIDC Request for New GCMD Keyword

Posted: Mon Jul 06, 2026 10:34 am America/New_York
by GCMD - tstevens
Thank you for your keyword request. We will review it and let you know when it is complete.

Re: NSIDC Request for New GCMD Keyword

Posted: Wed Jul 08, 2026 12:28 pm America/New_York
by GCMD - tstevens
@tkande86

The new project keyword has been added; please review.
PM-LT > Long-Term Passive Microwave Data: https://cmr.earthdata.nasa.gov/kms/concept/7876cfd6-321f-44b2-9a05-c540ba5e7dd9?format=json&version=draft

Re: NSIDC Request for New GCMD Keyword

Posted: Wed Jul 08, 2026 12:58 pm America/New_York
by tkande86
I've reviewed it and approve. Thanks!