The TRISHNA Mission: A New Era of High-Resolution Thermal Infrared Earth Observation for Land Surface Monitoring
Abstract
Thermal infrared (TIR) satellite remote sensing is essential for monitoring land surface temperature (LST) and surface energy fluxes, supporting applications in hydrology, agriculture, climate, and urban climate. Existing TIR missions—such as LANDSAT, ASTER, ECOSTRESS, and Sentinel-3 SLSTR—offer complementary capabilities but remain constrained by trade-offs between spatial resolution, revisit frequency, and radiometric accuracy, limiting their ability to capture rapidly evolving surface processes at field to regional scales. The TRISHNA (Thermal Infrared Satellite for High-Resolution Natural Resource Assessment) mission, expected in 2027, addresses this gap by providing 60 m TIR imagery over a ~1000 km swath with sub-weekly revisit, enabling systematic monitoring of surface energy processes in natural and managed ecosystems. Its integrated design —including orbit configuration, spectral channels (VNIR, SWIR, TIR), viewing geometry, and calibration strategy— supports accurate retrievals of evapotranspiration, vegetation water stress, and surface temperature dynamics. Synergies with upcoming missions such as ESA’s Land Surface Temperature Mission (LSTM) and NASA’s EAGLE mission (Explorer for Artemis Geology Lunar and Earth) will enhance temporal coverage, cross-calibration, and long-term data continuity.
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BibTeX
@misc{gamet2026trishna,
title = {{The TRISHNA Mission: A New Era of High-Resolution Thermal Infrared Earth Observation for Land Surface Monitoring}},
author = {Philippe Gamet and Bimal Bhattacharya and Jean-Louis Roujean and Gilles Boulet and Corinne Salcedo and Albert Olioso and Kanishka Mallick and Marie Weiss and Emmanuelle Sarrazin and Emmanuelle Autret and Laure Roupioz and José Antonio Sobrino and Olivier Merlin and Ghislain Picard and Thomas Vidal and Mark Irvine and Rahul Nigam and Mehul Pandya and Simon Gascoin and Sébastien Marcq and Manoj Mishra and Emilie Delogu and Vincent Rivalland and Jordi Etchanchu and Jean-Louis Raynaud and Meenakshi Sarkar and Rishi Gangwar and Sushil Singh and Renaud Binet and Sara Arioli and Hervé Yésou and Isabelle Dadou and Alexei Kouraev and Julien Michel and Benoit Coudert and Samuel Mwangi and Nesrine Farhani and Ayan Das and Stéphane Saux-Picart and Thierry Tormos and Jean-François Piollé and Charles Verpoorter and Auline Rodler and Jonathan Leon Tavares and Jennifer Adams and Anand Sahadevan and Besavaraju Santhi Sree and Manikumar Vedantam and Dheeraj Adlakha and Laurence Buffet and Kathrin Naegeli and Itziar Barat and Jerome Demarty and Olivier Hagolle and Philippe Maisongrande},
howpublished = {HAL},
year = {2026},
month = jul,
doi = {10.5194/egusphere-2026-4492},
url = {https://hal.science/hal-05761340v1},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - The TRISHNA Mission: A New Era of High-Resolution Thermal Infrared Earth Observation for Land Surface Monitoring
AU - Philippe Gamet
AU - Bimal Bhattacharya
AU - Jean-Louis Roujean
AU - Gilles Boulet
AU - Corinne Salcedo
AU - Albert Olioso
AU - Kanishka Mallick
AU - Marie Weiss
AU - Emmanuelle Sarrazin
AU - Emmanuelle Autret
AU - Laure Roupioz
AU - José Antonio Sobrino
AU - Olivier Merlin
AU - Ghislain Picard
AU - Thomas Vidal
AU - Mark Irvine
AU - Rahul Nigam
AU - Mehul Pandya
AU - Simon Gascoin
AU - Sébastien Marcq
AU - Manoj Mishra
AU - Emilie Delogu
AU - Vincent Rivalland
AU - Jordi Etchanchu
AU - Jean-Louis Raynaud
AU - Meenakshi Sarkar
AU - Rishi Gangwar
AU - Sushil Singh
AU - Renaud Binet
AU - Sara Arioli
AU - Hervé Yésou
AU - Isabelle Dadou
AU - Alexei Kouraev
AU - Julien Michel
AU - Benoit Coudert
AU - Samuel Mwangi
AU - Nesrine Farhani
AU - Ayan Das
AU - Stéphane Saux-Picart
AU - Thierry Tormos
AU - Jean-François Piollé
AU - Charles Verpoorter
AU - Auline Rodler
AU - Jonathan Leon Tavares
AU - Jennifer Adams
AU - Anand Sahadevan
AU - Besavaraju Santhi Sree
AU - Manikumar Vedantam
AU - Dheeraj Adlakha
AU - Laurence Buffet
AU - Kathrin Naegeli
AU - Itziar Barat
AU - Jerome Demarty
AU - Olivier Hagolle
AU - Philippe Maisongrande
PY - 2026
DA - 2026/07/31
PB - HAL
DO - 10.5194/egusphere-2026-4492
UR - https://hal.science/hal-05761340v1
AB - Thermal infrared (TIR) satellite remote sensing is essential for monitoring land surface temperature (LST) and surface energy fluxes, supporting applications in hydrology, agriculture, climate, and urban climate. Existing TIR missions—such as LANDSAT, ASTER, ECOSTRESS, and Sentinel-3 SLSTR—offer complementary capabilities but remain constrained by trade-offs between spatial resolution, revisit frequency, and radiometric accuracy, limiting their ability to capture rapidly evolving surface processes at field to regional scales. The TRISHNA (Thermal Infrared Satellite for High-Resolution Natural Resource Assessment) mission, expected in 2027, addresses this gap by providing 60 m TIR imagery over a ~1000 km swath with sub-weekly revisit, enabling systematic monitoring of surface energy processes in natural and managed ecosystems. Its integrated design —including orbit configuration, spectral channels (VNIR, SWIR, TIR), viewing geometry, and calibration strategy— supports accurate retrievals of evapotranspiration, vegetation water stress, and surface temperature dynamics. Synergies with upcoming missions such as ESA’s Land Surface Temperature Mission (LSTM) and NASA’s EAGLE mission (Explorer for Artemis Geology Lunar and Earth) will enhance temporal coverage, cross-calibration, and long-term data continuity.
ER -