For the nowcasting and very short range weather forecasting, the near-real time availability of high resolution cloud products is essential.
The EARS-NWC derives cloud products from the AVHRR instrument data, collected from the Primary Morning Orbit and Primary Afternoon Orbit satellites via a network of AHRPT/HRPT stations, and retransmits them via EUMETCast.
The three cloud products of the EARS-NWC service complement the cloud products from geostationary-satellites like MSG, especially for the high-latitudes where the coverage from the geo-stationary orbit is limited. The distributed products are:
- Cloud Mask (CM)
- Cloud Type (CT)
- Cloud Top Temperature and Height (CTTH)
EARS-NWC Service Specification
N19 and Metop-B as shown on the tables on the Regional Data Service/EARS webpage.
AAPP as provided by the NWP-SAF and PPS as provided by NWC-SAF, configured and run by EUMETSAT.
Segments each containing one minute of observations.
Duplicate segments removed before dissemination.
Products via EUMETCast Europe
Cloud products derived for each segment:
- Cloud Type (including cloud phase flag and processing flag)
- Cloud Top Temperature & height (height, pressure, temperature), including processing flag — both for opaque and for semi-transparent clouds.
- Cloud Mask (aerosol flag only).
Geo-location information represented as tie-points contained in the products. All products on original instrument grid, netCDF4 format, bz2-compressed.
Timeliness via EUMETCast
Products via RMDCN/GTS
Archived in EUMETSAT
All disseminated products.
For more information on EARS-NWC see TD 14 - EUMETSAT Advanced Retransmission Service Technical Description (PDF,3 MB)
Full details on products can be found in the Product Navigator:
EARS Cloud Mask – Multimission
EARS Cloud Top Temperature & Height – Multimission
EARS Cloud Type – Multimission