Providing high resolution cloud data
EARS-MERSI complements the Metop and the US POES and SNPP/JPSS satellites currently covered by EARS.
07 December 2020
27 April 2020
The EARS Medium Resolution Spectral Imager (MERSI) service collects data from the MERSI-II instrument on board FY-3D. MERSI-II is a 25-channel VIS/IR multispectral radiometer (replacing and merging MERSI-1 on FY-3A/3B and VIRR on FY-3A/3B/3C).
Six of the channels have a 250m resolution and the remaining 19 channels have a resolution of 1 km. Scanning technique: Cross-track: 2048 detectors for channels at 1000 m resolution, or 8192 detectors for channels at 250 m resolution, swath 2900 km; Along-track: ten 10 km lines every 1.5 secs.
EARS-MERSI service specification
FY-3D, as shown on the tables on the Regional Data Service/EARS webpage.
FY3_IPP as provided by the CMA, configured and run by EUMETSAT.
Segments each containing one minute of observations. Duplicate segments removed before dissemination.
Products via EUMETCast Europe
Two separate products:
- One product containing science and calibration data, 1km resolution, in HDF format.
- One product containing geolocation data, in HDF format.
Timeliness via EUMETCast
Products via RMDCN/GTS
Archived in EUMETSAT
For more information on EARS-MERSI see TD 14 - EUMETSAT Advanced Retransmission Service Technical Description
Full details on products can be found in the Product Navigator: MERSI - Feng-Yun - 3 - Regional Data Service
EARS-ASCAT collects ASCAT instrument data from Metop passes, via a network of HRPT stations, and re-transmits Level 2 products via EUMETCast.
EARS-ATMS collects data from the ATMS instrument on board the JPSS spacecrafts, operated by NASA and NOAA.
EARS-ATOVS provides the European meteorological community with sounder data covering data-sparse areas, within 30 minutes of the instrument observations.
EARS-AVHRR collects data from the primary morning and afternoon orbits of Metop and NOAA satellites via a network of AHRPT/HRPT stations. It re-transmits them via EUMETCast.
The EARS-CrIS service collects data from the CrIS instrument onboard the JPSS spacecrafts, operated by NASA and NOAA.
EARS-IASI collects IASI instrument data from Metop satellite-passes via a network of HRPT stations and re-transmits Level 1c and pilot Level 2 products.
EARS-VASS (Vertical Atmospheric Sounding Service), complements the Metop and the US POES and SNPP/JPSS satellites currently covered by EARS.