Save the date : 1st TRISHNA Workshop in March 2022 in Toulouse


Toulouse, France, 22-24 March 2022




Important note: this page is for information only. Registration and call for abstracts will be available soon on a dedicated website.



Monitoring accurately the water cycle at the Earth surface is becoming extremely important in the context of climate change and population growth. It also provides valuable information for a number of practical applications: agriculture, soil and water quality assessment, irrigation and water resource management, etc… It requires surface temperature measurements at local scale. Such is the goal of the Indian-French high spatio-temporal TRISHNA mission (Thermal infraRed Imaging Satellite for High-resolution Natural resource Assessment), led by ISRO (Indian space agency) and CNES (French Space agency). It will be launched in late 2024/beginning of 2025.


The surface temperature and its dynamics are precise indicators of the evaporation of water from soils, transpiration of plants and of the local climate. TRISHNA and its frequent high-resolution measurements raise major scientific, economic and societal issues through the 6 major themes that the mission addresses from the angle of research and development of applications: ecosystem stress and water use; coastal and inland waters; monitoring of the urban climate; cryosphere; solid Earth; atmosphere.


Workshop Objectives

The objective is to gather all people involved and interested in the science and applications in which TRISHNA will contribute: contributors to the design of the mission or elaboration of the products and potential users. This first international workshop shall be a key milestone in order to converge on TRISHNA science plan, including CAL/VAL activities, scientific algorithms for data processing, product definition, with enhanced coordination between all partners.

Discussions and exchanges will include:

TRISHNA in the international context

All discussions within the workshop shall be considered in synergy with the future operational missions with high resolution and high revisit thermal infrared capability (TRISHNA, Copernicus’ LSTM, NASA’s SBG), and based on the experience gathered with the pathfinder missions (LANDSAT, ASTER, ECOSTRESS)

Elaboration of TRISHNA products and Calibration/Validation

  • The definition of TRISHNA scientific products and variables
  • Requirements and constraints for the distribution of the products to the users
  • The elaboration of the products, through the redaction of the Algorithm Theoretical Basis Documents
  • Calibration and validation activities

TRISHNA scientific themes and associated applications

  • Ecosystem stress and water use: advances in the assimilation of land surface temperature or evapotranspiration in hydrological models
  • Coastal and inland waters
  • Urban climate modeling
  • Cryosphere
  • Solid earth
  • Atmosphere


Workshop Format

The workshop will last for 3 days. It will include a series of plenary presentations.

Furthermore, specific themes and issues will be discussed in follow-up breakout sessions. The outcomes of the breakout sessions will be presented in plenary by the respective moderators followed by open discussion.


Workshop Outcomes

Following the workshop, the proceedings  (presentations, discussion summaries and
conclusions) will be prepared and made available to participants  and other interested parties on the TRISHNA website.


Working language

The working language of the workshop will be English.


Date and Venue

The workshop will be held 22-24 March 2022.

The meeting venue is:

Hôtel Mercure Toulouse Centre Compans

Boulevard Lascrosses – 8 Esplanade Compans Caffarelli

31000 Toulouse – FRANCE


Registration, Deadlines and Accomodations

The registration fee for workshop participation is TBD. On-line registration is required. Registration will open soon. Registration can be done at the following website: TBD

The workshop website will also be used to post relevant documents for the workshop, as well as practical information such as hotel lists and directions to the venue.


A block of rooms will be secured at special rate at the conference hotel.


Workshop Organization and contact information

The workshop is organised by CNES, and hosted by the Mercure hotel Toulouse Center Compans.

CESBIO will provide the Scientific Secretariat for the workshop.


Workshop Organization Committee

 Jean-Louis Roujean

Bimal K. Bhattacharya

Philippe Gamet

Philippe Maisongrande

Gilles Boulet

Mark Irvine




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