Why do some TRMM and GPM products contain empty granules?
Posted: Thu Sep 03, 2026 2:52 pm America/New_York
Answer:
Empty data granules, and data gaps, are often associated with anomalous events occurring either in the operation of the spacecraft or in the operation of the Earth-observing instruments on the satellite.
These events are listed in the following links:
TRMM: https://gpmweb2https.pps.eosdis.nasa.gov/tsdis/AB/docs/anomalous.html
GPM: https://gpmweb2https.pps.eosdis.nasa.gov/tsdis/AB/docs/gpm_anomalous.html
Partner Satellites: https://gpmweb2https.pps.eosdis.nasa.gov/tsdis/AB/docs/partner_anomalous.html
Empty data granules, and data gaps, are often associated with anomalous events occurring either in the operation of the spacecraft or in the operation of the Earth-observing instruments on the satellite.
These events are listed in the following links:
TRMM: https://gpmweb2https.pps.eosdis.nasa.gov/tsdis/AB/docs/anomalous.html
GPM: https://gpmweb2https.pps.eosdis.nasa.gov/tsdis/AB/docs/gpm_anomalous.html
Partner Satellites: https://gpmweb2https.pps.eosdis.nasa.gov/tsdis/AB/docs/partner_anomalous.html