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Exploitation of TRMM data for an improved weather and climate forecast.

Objective



The Tropical Rainfall Measurement Mission (TRMM) will be the first satellite for earth observation to embark a precipitation radar, in association with a microwave and VIS/IR imaging radiometer, in order to provide accurate measurements of the precipitation from space.
Its inclination of orbit (+35ø) will allow to cover the tropical belt, where the latent heat release by deep convection is of major importance, and where the systematic observations are scarce.
TRMM is a joint effort of the US and Japanese space agencies (NASA and NASDA), and will be launched in November 97, for a nominal life time of three years.
The access of the European scientific community to the TRMM data constitutes an exceptional opportunity to test the impact of improved measurements of the global precipitation on the numerical weather prediction. This proposal arises from a group of European scientists whose competence covers remote sensing of the surface and of the atmosphere by active and passive techniques, moist convection dynamics, physics of the precipitation, large scale atmospheric dynamics and climate, operational numerical weather prediction. The objective of this group is twofold: (i) to process the TRMM data and products in order to provide assimilation data, or verification data for a numerical weather prediction (NWP) model; and (ii) to attempt assimilation of the precipitation data in a NWP model, and/or to use the precipitation data for testing and tuning schemes for paramerisation of convection.
It is expected that this study, definitely driven by operational application would result in:
- the development of better methods to assimilate SSM/I
radiances in NWP models;
- the validation and improvement of convection schemes in NWP models; - improved prediction of tropical storms and precipitation forecasts; - valuable guidance for the optimisation of future satellite observingsystems.
This proposal is fully compliant with Theme 3 of the work programme ("Space techniques Applied to Environmental Monitoring and Research"), area 3.1.2 ("Pilot Projects"), since two users are involved in the proposal. It is also relevant to Theme 1 - area 1.1.3 (Climate variability, simulation of climate and predichon of climate change), since it should lead to an improved representation of moist convection, a key dynamical process in a dynamical climate model.

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
Address
Avenue De L'europe 10-12
78140 Velizy Villacoublay
France

Participants (7)

COUNCIL FOR THE CENTRAL LABORATORY OF THE RESEARCH COUNCILS
United Kingdom
Address
Chilton
OX11 0QX Didcot,harwell,chilton
European Centre for Medium-range Weather Forecasts - ECMWF
United Kingdom
Address
Shinfield Park
RG2 9AX Reading
FONDAZIONE PER LA METEOROLOGIA APPLICATA
Italy
Address
Via Albert Einstein 35/B
50013 Campi Bisenzio
GERMAN AEROSPACE CENTRE
Germany
Address
20,Muenchner Strasse 20
51147 Koeln
MAX-PLANCK-GESELLSCHAFT ZUR FOERDERUNG DER WISSENSCHAFTEN E.V.
Germany
Address
Bundesstra¯e 55
20146 Hamburg
UNIVERSITY OF ESSEX
United Kingdom
Address
Wivenhoe Park
CO4 3SQ Colchester
Université Catholique de Louvain
Belgium
Address
2,Place Du Levant
1348 Louvain-la-neuve