Vertical profiles of temperature and humidity in the atmosphere
EARS-ATOVS provides the European meteorological community with sounder data covering data-sparse areas, within 30 minutes of the instrument observations.
31 May 2022
28 April 2020
Sounder data is produced by a set of the instruments known as ATOVS, Advanced TIROS Operational Vertical Sounders.
This set, comprising the Advanced Microwave Sounding Units A and B (AMSU-A and AMSU-B) and complemented by the High Resolution Infra-red Sounder (HIRS/3) instruments, is used to obtain information about the vertical profiles of temperature and humidity in the atmosphere.
The radiation measurements from the ATOVS instruments can be assimilated directly in numerical atmospheric models using advanced techniques, developed for operational use over the last decade. This vertical profile information is vital to the performance of all numerical forecasting model systems.
EARS-ATOVS service specification
N18, N19, Metop-B and Metop-C as shown on the tables on the Regional Data Service/EARS webpage.
AAPP as provided by the NWP SAF, configured and run by EUMETSAT.
One file per station pass, instrument and processing level.
Products via EUMETCast Europe
- Level 1c per ATOVS instrument, data on original instrument grid, BUFR format.
- Level 1d ATOVS product including AVHRR derived cloud mask, data on HIRS instrument grid, bzip2 compressed.
Timeliness via EUMETCast
Products via RMDCN/GTS
Level 1c per ATOVS instrument, data on original instrument grid, BUFR format.
Archived in EUMETSAT
For more information on EARS-ATOVS see TD 14 - EUMETSAT Advanced Retransmission Service Technical Description
Full details on products can be found in the Product Navigator:
ATOVS Regional Data Service – Multimission
Other EARS services
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.
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-MERSI complements the Metop and the US POES and SNPP/JPSS satellites currently covered by EARS.
EARS-VASS (Vertical Atmospheric Sounding Service), complements the Metop and the US POES and SNPP/JPSS satellites currently covered by EARS.