1. MERIS User Workshop
ESA/ESRIN November 2003
MERIS IPWV validation: a multisensor experimental campaign in the Central Italy P. Ciotti (1,4), E. Di Giampaolo (1), P. Basili (2), S. Bonafoni (2), V. Mattioli (2), R. Biondi (2), E. Fionda (3), F. Consalvi (3), A. Memmo (4), D. Cimini (4),
R. Pacione (5), F. Vespe (6) (1) DIE-Univ. dell’Aquila, (2) DIEI-Univ. di Perugia, (3) FUB, Roma, (4) CETEMPS, L’Aquila, (5) Telespazio, Matera, (6) ASI, Matera

2. Italian Cal/Val sites over land
Site Instruments
Perugia: GPS, meteo station
Elba Island: microwave radiometer (WVR), meteo st. & GPS
L’Aquila: GPS, meteo station
Pomezia (Rome): microwave radiometer (WVR), RAOB’s, meteo st.
- MM5 numerical model outputs for each site
MERIS User Workshop
ESA/ESRIN November 2003

3. Validation of the IPVW from the MERIS/ENVISAT
PURPOSE
Validation of the IPVW from the MERIS/ENVISAT
The validation is performed both at specific locations (4) and over an extended area including land and sea backgrounds
The first comparison is performed with respect to the measurements of ground based instruments (microwave radiometers, GPS, RAOBs)
The second assessment is based on IPWV maps of the Tyrrhenian area that are produced by geostatistical interpolation of the measurements of a network of GPS receivers (over land) and measurements of SSM/I (over sea)
MERIS User Workshop
ESA/ESRIN November 2003