The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Publications Copernicus
Articles | Volume XLII-3/W6
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-3/W6, 403–407, 2019
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-3/W6, 403–407, 2019

  26 Jul 2019

26 Jul 2019


J.-P. Lagouarde1, B. K. Bhattacharya2, P. Crébassol3, P. Gamet3, D. Adlakha2, C. S. Murthy4, S. K. Singh2, M. Mishra2, R. Nigam2, P. V. Raju4, S. S. Babu5, M. V. Shukla2, M. R. Pandya2, G. Boulet6, X. Briottet7, I. Dadou8, G. Dedieu9, M. Gouhier10, O. Hagolle9, M. Irvine1, F. Jacob11, K. K Kumar5, B. Laignel12, P. Maisongrande3, K. Mallick13, A. Olioso14, C. Ottlé15, J.-L. Roujean9, J. Sobrino16, R. Ramakrishnan2, M. Sekhar17, and S. S. Sarkar2 J.-P. Lagouarde et al.
  • 1INRA, UMR 1391 ISPA, F-33140 Villenave d'Ornon, France
  • 2ISRO, Space Applications Centre, Ahmedabad 380015, India
  • 3CNES, 18 av. Edouard Belin, F-31401 Toulouse, France
  • 4ISRO, NRSC, National Remote Sensing Centre, Hyderabad 500 037, India
  • 5ISRO, Space Physics Laboratory, Thiruvananthapuram 695 022, India
  • 6IRD, UMR 5126 CESBIO,F-31401 Toulouse, France
  • 7ONERA, DOTA, 2 av. Edouard Belin, F-31055 Toulouse, France
  • 8LEGOS, 18 av. Edouard Belin, F-31401 Toulouse, France
  • 9CESBIO, Université de Toulouse, UMR 5126 CESBIO,F-31401 Toulouse, France
  • 10OPGC, LMV, Université Clermont Auvergne, Clermont-Ferrand, France
  • 11IRD, UMR 1221 LISAH, 2 place Viala, F-34060 Montpellier, France
  • 12Université de Rouen, UMR 6143 M2C, F-76821 Mont Saint Aignan, France
  • 13LIST, ERIN, 41, rue du Brill, L-4422 Belvaux, Luxembourg
  • 14INRA, UMR 1114 EMMAH, F-84000 Avignon, France
  • 15LSCE, UMR 8212, Centre d'Etudes de Saclay, F-91191 Gif-sur-Yvette, France
  • 16Universitat de Valencia, UCG/IPL, Parque Científico, E-46980 Paterna, Spain
  • 17IISc, CV Raman Rd, Bengaluru, Karnataka 560 012, India

Keywords: TIR remote sensing, surface energy balance, TRISHNA mission, global monitoring

Abstract. The Indian and French Space Agencies, ISRO and CNES, have conceptualized a space-borne Thermal Infrared Reflectance (TIR) mission, TRISHNA (Thermal infRared Imaging Satellite for High-resolution Natural Resource Assessment). The primary design drivers of TRISHNA are the monitoring of (i) terrestrial water stress and use, and of (ii) coastal and continental water. A suit of four TIR bands and six optical bands is planned. The TIR bands will be centred at 8.6 μm, 9.1 μm, 10.3 μm and 11.5 μm to provide noon-night global observations at 57m nadir resolution over land and coastal regions. The field of view (FOV) is ±34° and the orbit of 761 km altitude was designed to allow 3 sub-cycle acquisitions during the 8-day cycle. The optical bands correspond to blue, green, red, and NIR plus two SWIR bands at 1.38 μm and 1.61 μm. The green, red, NIR and the 1.61 μm SWIR bands will have better radiometry quality than those of AWiFS. ISRO and CNES will develop optical and TIR payloads, respectively. Assessing evapotranspiration and furthermore Gross and Net Primary Productivity (GPP and NPP) will in turn assist in quantifying water use in rainfed and irrigated agriculture, water stress and water use efficiency, with expected applications to agricultural drought and early warning, crop yield prediction, water allocation, implementation of water rights, crop insurance business and agro-advisories to farmers. The other scientific objectives of TRISHNA are also briefly described. TRISHNA instrument will fly aboard a ISRO spacecraft scheduled to be launched from 2024 for a minimum period of 5 years’ mission lifetime.