EARS-MERSI complements the Metop and the US POES and SNPP/JPSS satellites currently covered by EARS.
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 s.
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 (PDF,3 MB)
Full details on products can be found in the Product Navigator:
MERSI - Feng-Yun - 3 - Regional Data Service