Jean-Christophe Calvet
calvet@meteo.fr
CNRM/GMME/MC2
Météo-France 		meteo france logo

Biography

    Jean-Christophe Calvet received the engineering degree from the Institut National Agronomique Paris-Grignon, Paris, France, in agronomy and the engineering degree from the Ecole Nationale de la Météorologie, Toulouse, France, in meteorology. In 1990, he joined Météo-France/CNRM, Toulouse, France. From September to March 1991 he was on leave of absence to work at the Laboratoire d'Etudes et de Recherches en Télétection spatiale, Toulouse, France, and from April 1991 to July 1992 at the Instituto Nacional de Pesquisas Espaciais, Sao José dos Campos, Brazil. In 1996, he received the Ph. D. degree from the Université Paul Sabatier, Toulouse, France. His application interests are in the land-atmosphere exchange modeling and in the use of remote sensing over land surfaces for meteorology. His most recent works concern the analysis of soil moisture and the representation of an interactive vegetation in climate models.

List of publications


1. The Amazon Forest and Deforestation in Amazonia:

Calvet, J.-C. and Y. Viswanadham, Amazon forest radiation budget from satellite data, J. Appl. Meteor., 32, No. 5, 1993.

Calvet, J.-C., A lagrangian model of the evapotranspiration of the Amazon forest from surface and stomatal resistance estimates, Remote Sensing Reviews, 10, pp. 193-216, 1994.

Calvet, J.-C., R. Santos-Alval?, G. Jaubert, C. Delire, C.A. Nobre, I. Wright and J. Noilhan, Mapping surface parameters for mesoscale modeling in forested and deforested south-western Amazonia, Bull. Amer. Meteor. Soc., 78, No. 3, 1997.

Delire, C., J.-C. Calvet, J. Noilhan, I. Wright, A. Manzi and C.A. Nobre, Physical properties of Amazonian soils: A modeling study using the Anglo- Brazilian Amazonian Climate Observation Study data, Journal of Geophysical Research, 102, No. D25, pp. 30119-30133, 1997.

Dolman, A.J., M.A. Silva Dias, J.-C. Calvet, M. Ashby, A.S. Tahara, C. Delire, P. Kabat, G.A. Fisch and C.A. Nobre, Mesoscale effects of tropical deforestation in Amazonia: preparatory LBA modelling studies, Ann. Geophys., 17, pp. 1095-1110, 1999.

2. Theory of soil and vegetation microwave emission, and inverse problem:

Wigneron, J.-P., J.-C. Calvet, Y.H. Kerr, Microwave emission of vegetation: sensitivity to leaf characteristics, IEEE Trans. Geosci. Remote Sensing, 31, No. 3, pp. 716-726, 1993.

Calvet, J.-C., J.-P. Wigneron, E. Mougin, Y.H. Kerr and J.L.S. Brito, Plant water content and temperature of the Amazon forest from satellite microwave radiometry, IEEE Trans. Geosci. Remote Sensing, 32, No. 2, pp. 397-408, 1994.

Noilhan, J. and J.-C. Calvet, Mesoscale land-atmosphere models and usefulness of microwave remote sensing data, in Passive microwave remote sensing of land-atmosphere interactions, Eds. B.J. Choudhury, Y.H. Kerr, E.G. Njoku and P. Pampaloni, VSP, Utrecht, The Netherlands, 1995.

Wigneron, J.-P., A. Chanzy, J.-C. Calvet and N. Bruguier, A simple algorithm to retrieve soil moisture and vegetation biomass using passive microwave measurements over crop fields, Remote Sensing of Environment, 51, pp. 331- 341, 1995.

Wigneron, J.-P., J.-C. Calvet, A. Chanzy, O. Grosgean and L. Laguerre, A composite discrete-continuous approach to model the microwave emission of vegetation, IEEE Trans. Geosci. Remote Sensing, 33, No. 1, pp. 201-211, 1995.

Calvet, J.-C., J.-P. Wigneron, A. Chanzy, S. Raju and L. Laguerre, Microwave dielectric properties of a silt-loam at high frequencies, IEEE Trans. Geosci. Remote Sensing, 33, No. 3, pp. 634-642, 1995.

Raju, S., A. Chanzy, J.-P. Wigneron, J.-C. Calvet, Y. Kerr and L. Laguerre, Soil moisture and temperature profile effects on microwave emission at low frequencies, Remote Sensing of Environment, 54, pp. 85-97, 1995.

Calvet, J.-C., A. Chanzy and J.-P. Wigneron, Surface temperature and soil moisture retrieval in the Sahel from airborne multi-frequency microwave radiometry, IEEE Trans. Geosci. Remote Sensing, 34, No. 2, pp. 588-600, mars 1996.

Calvet, J.-C., J.-P. Wigneron, A. Chanzy and D. Haboudane, Retrieval of surface parameters from microwave radiometry over open canopies at high frequencies, Remote Sensing of Environment, 53, pp. 46-60, 1995.

Calvet, J.-C. and J.-P. Jullien, Land surface temperature retrieval in dry conditions from infrared and microwave satellite radiometry, Remote Sensing Reviews, 13, pp. 235-255, 1996.

Calvet, J.-C., A. Chanzy and J.-P. Wigneron, Surface temperature and soil moisture retrieval in the Sahel from airborne multi-frequency microwave radiometry, IEEE Trans. Geosci. Remote Sensing, 34, No. 2, pp. 588-600, 1996.

Wigneron, J.-P, J.-C. Calvet, A. Chanzy and Y.K. Kerr, Monitoring water interception by crop fields from passive microwave observations, Agr. For. Meteor., 80, pp. 177-194, 1996.

Haboudane, D., A. Chanzy, J.-C. Calvet, J.-P. Wigneron and F. Bonn, Radiométrie micro-onde dans le cas des couverts végétaux partiels : estimation de la teneur en eau du sol, Journal canadien de télédétection, 22, No. 2, pp. 208- 217, 1996.

Wigneron, J.-P., D. Guyon, J.-C. Calvet, G. Courrier and N. Bruguier, Monitoring coniferous forest characteristics using a multifrequency (5-90 GHz) microwave radiometer, Remote Sensing of Environment, 60:299-310, 1997.

Chanzy, A., T.J. Schmugge, J.-C. Calvet, Y. Kerr, P. van Oevelen, O. Grosjean and J.R. Wang, Airborne microwave radiometry on a semi-arid area during HAPEX-Sahel, J. Hydrology, 188-189, pp. 285-309, 1997.

Wigneron, J.-P., T.J. Schmugge, A. Chanzy, J.-C. Calvet and Y. Kerr, Use of passive microwave remote sensing to monitor soil moisture, Agronomie, 18, pp. 27-43, 1998.

Wigneron, J.-P., P. Ferrazoli, J.-C. Calvet, Y. Kerr, and P. Bertuzzi, A parametric study on passive and active microwave observations over a soybean crop, IEEE Trans. Geosci. Remote Sensing, 37, No. 6, pp. 2728-2733, 1999.

3. Land surface experiments and the analysis of the soil water content in the root-zone:

Calvet, J.-C., J. Noilhan and P. Bessemoulin, Retrieving the root-zone soil moisture from surface soil moisture or temperature estimates: a feasibility study based on field measurements, J. of Appl. Meteor., 37, No. 4, pp. 371-386, 1998.

Calvet, J.-C., P. Bessemoulin, J. Noilhan, and 20 coauthors, MUREX: a land- surface field experiment to study the annual cycle of the energy and water budgets, Ann. Geophys., 17, pp. 838-854, 1999.

Olioso, A., H. Chauki, J.-P. Wigneron, K. Bergaoui, P. Bertuzzi, A. Chanzy, P. Bessemoulin, and J.-C. Calvet, Estimation of energy fluxes from thermal infrared, spectral reflectances, microwave data and SVAT modeling, Physics and Chemistry of the Earth (B), 24, No. 7, pp. 837-843, 1999.

Gonzalez-Sosa, E., I. Braud, J.-L. Thony, M. Vauclin, P. Bessemoulin, and J.-C. Calvet, "Modelling heat and water exchanges of fallow land covered with plant-residue mulch", Agric. For. Meteoro., 97, pp. 151-169, 1999.

Wigneron, J.-P., J.-C. Calvet, A. Olioso, A. Chanzy, and P. Bertuzzi, Estimating the root-zone soil moisture from the combined use of time series of surface soil moisture and SVAT modeling, Water Resource Research, (in press), 2000.

4. CO2 assimilation and improvement of Soil-Vegetation-Atmosphere- Transfer (SVAT) modeling:

Calvet, J.-C., J. Noilhan, J.-L. Roujean, P. Bessemoulin, M. Cabelguenne, A. Olioso and J.-P. Wigneron, An interactive vegetation SVAT model tested against data from six contrasting sites, Agric. For. Meteor., 92, pp. 73-95, 1998.

Boone, A., J.-C. Calvet and J. Noilhan, Inclusion of a third soil layer in a land-surface scheme using the force-restore method, J. of Appl. Meteor., 38, 1611-1630, 1999.

Calvet, J.-C., Investigating soil and atmospheric plant water stress using physiological and micrometeorological data sets, Agric. For. Meteor., (in press), 2000.