1. Lessons on Satellite Meteorology Part VII: Metop Introduction to Metop Instruments The sounders with focus on IASI The GRAS instrument The ASCAT scatterometer The EARS retransmission system SEVIRI BEL archive

2. Metop satellite − European contribution to the IJPS (Initial Join Polar System) − Replace the NOAA morning orbit satellite − Metop orbit in 102 minutes − Payload of instruments coming from Europe and US. − Metop-A launched October 2006 − Now fully operational but… − Exception for the HRPT (High Resolution Picture Transmission) retransmission system RMIB HRPT antenna

3. Metop instruments GOME/2 ?

4. The sounding instruments: IASI, MHS, AMSU- A1 & -A2, HIRS/4 Atmospheric profiles assimilation in NWP Atmospheric chimistry Precipitation estimate Soil temperature

5. IASI: the Infrared Atmospherique Sounding Interferometer (15.5µm) (3.62µm)

6. IASI level 2 (geophysical products) TWT: temperature and water vapour atmospheric profiles + surface skin temperature (90 levels) OZO: ozone “profiles” (currently 4 layers) TRG : trace gases (CO, CH4, N2O, CO2) EMS: surface emissivity (12 wavelengths) CLP: cloud parameters

7. IASI observations over Belgium ( 17 Nov. 2007) selected pixel Observations at 9:18 and 20:45 UTC (+ some at 10:58 UTC)

8. IASI Level 1 data for the selected pixel

9. Level 2 for this pixel Temperature profile Humidity profile

10. IASI for atmospheric chimistry (including at IASB/BIRA)

11. GRAS – GPS Receiver for Atmospheric Sounding Level 1 available +/- 500 occultations/day Spatial resolution: +/- 300km Level 2 processing by the GRAS SAF. Availability in April 2008. Usage: Assimilation in NWP Climate monitoring (transfer troposphere stratosphere)

12. ASCAT, the Advanced Scatterometer Active radar sensing of the ocean surface wind C-band, 5.2555 GHz 12.5 km KNMI processing (OSI SAF) Assimilated at ECMWF since July 2007 Day-2 products: soil humidity (TU Wien)

13. Using ASCAT to cross the ITCZ during the Jacques Vabre transat (Le Havre to Salvador de Bahia)

14. Metop products EUMETSAT products: ATOVS and IASI SAF products: GRAS SAF: atmospheric profiles OZONE: total ozone, ozone profile, NO2, UV index from GOME-2 Nowcasting: cloud and precipitation from AVHRR + AMSU OSI: surface wind (ASCAT), sea ice, SST, ocean surf. Radiation, LSA: soil humidity (ASCAT), …

15. EARS: the EUMETSAT Advanced Retransmission system for Metop/NOAA

16. Summary of part II -- Metop Metop data already assimilated at ECMWF (IASI, ASCAT) Improvement in southern hemisphere Large panel of products based on different sensing techniques Not very efficient for nowcasting in Northern countries due to HRPT problems Activation of redundant HRPT non before 2008