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NSIDC Request for New GCMD Keyword

Posted: Mon Dec 22, 2025 10:19 am America/New_York
by tkande86
Hello,

NSIDC would like to request the following be added as a GCMD keyword under Earth Science > SPECTRAL/ENGINEERING > SENSOR CHARACTERISTICS

Short name: IMPULSE RESPONSE
Long name: IMPULSE RESPONSE
Definition: Impulse response is defined as the output of a linear time-invariant system when the input signal is a discrete impulse, represented mathematically as the coefficients of a finite impulse response filter.

Reference: https://www.sciencedirect.com/topics/computer-science/impulse-response

Thanks!
Theresa

Re: NSIDC Request for New GCMD Keyword

Posted: Mon Dec 22, 2025 2:57 pm America/New_York
by GCMD - tstevens
Thank You for your keyword request. I will review the keyword request and let you know when it is complete.

Re: NSIDC Request for New GCMD Keyword

Posted: Wed Jan 07, 2026 7:19 am America/New_York
by GCMD - tstevens
@tkande86 The new science keyword has been added; please review:
SPECTRAL/ENGINEERING > SENSOR CHARACTERISTICS > IMPULSE RESPONSE: https://cmr.earthdata.nasa.gov/kms/concept/030b4439-8a69-408a-b365-ccdf148d0854?format=rdf&version=draft

Re: NSIDC Request for New GCMD Keyword

Posted: Wed Jan 07, 2026 10:52 am America/New_York
by tkande86
Looks great, thank you!

Re: NSIDC Request for New GCMD Keyword

Posted: Tue Jan 13, 2026 12:48 pm America/New_York
by tkande86
This keyword is not yet appearing available. Do you know when it might be added? Thanks!

Re: NSIDC Request for New GCMD Keyword

Posted: Tue Jan 13, 2026 2:55 pm America/New_York
by GCMD - tstevens
This keyword will be available after our next keyword release on 1/16/26.