EARS-VASS

EARS-VASS (Vertical Atmospheric Sounding Service), complements the Metop and the US POES and SNPP/JPSS satellites currently covered by EARS.

EARS-VASS data example

EARS-VASS is composed of two products: Level 1b MWHS-II and MWTS-II. The data contain for all spectral channels and all Fields of view the calibrated and geolocated L1 data in BUFR format.

The MWHS-II instrument has the ability to perform the vertical atmosphere sounding also in cloudy conditions.

Like the MHS instrument on Metop and NOAA satellites, it focuses on the water vapour sounding of the upper troposphere, but also provides information on temperature profiles.

The MWTS-II instrument provides information on temperature profiles and is comparable to AMSU-A.

MWTS-II on FY-3C has failed.

EARS-VASS Service Specification

 

Geographical coverage

EARS VIIRS Geographical Coverage Map Core

Satellites supported

FY-3C (MWHS) and FY-3D (MWHS, MHTS), as shown on the tables on the Regional Data Service/EARS webpage.

Product Processing

FY3_IPP as provided by the CMA, configured and run by EUMETSAT AAPP as provided by NWP-SAF.

Product Segmentation

One file per station pass and instrument.

Duplicate segments removed before dissemination.

Products via EUMETCast Europe

Level 1b BUFR MWHS2 (FY-3C) and MWHS2, MWTS2 (FY3D). All spectral channels, all Fields of View. Calibrated and geolocated. BUFR format.

Timeliness via EUMETCast

30 minutes.

Products via RMDCN/GTS

As for EUMETCast.

Archived in EUMETSAT

None.

Further information

For more information on EARS-VASS see TD 14 - EUMETSAT Advanced Retransmission Service Technical Description (PDF,3 MB)

Full details on products can be found in the Product Navigator:
Regional Atmospheric Sounding Service – Feng-Yun - 3

 
We use essential cookies to ensure that we give you the best experience on our website. To analyse website traffic we also use third-party performance cookies. If you are ok with the use of essential as well as non-essential cookies, please select Accept & Continue. Instructions on how to prevent the use of non-essential cookies are available under our Terms Of Use, or simply select Decline Cookies.