From UPSC perspective, the following things are important :
Prelims level: TRISHNA Mission
Why in the News?
Philippe Baptiste, head of the French Space Agency, talked about the joint India-France “TRISHNA Mission.”
TRISHNA Mission:
| Details | |
| Overview | A joint Indo-French Earth observation satellite project developed by ISRO and CNES (French Space Agency).
Acronym for “Thermal infraRed Imaging Satellite for High-resolution Natural resource Assessment” (TRISHNA Mission) |
| Launch Year | Targeted for 2026. |
| Mission Lifespan | Designed for a 5-year operational life. |
| Primary Objectives | • Monitor water and energy budgets of the continental biosphere.
• Assess evapotranspiration for efficient water management. • Improve agricultural water productivity and assist in irrigation water management. • Provide high-resolution observations of water quality in coastal and inland waters. • Assess urban heat islands and detect heat anomalies. |
| Payloads | • Thermal Infrared (TIR) Payload: Provided by CNES, this sensor maps surface temperature and emissivity in high resolution.
• Visible-Near Infrared-Short Wave Infrared (VNIR-SWIR) Payload: Developed by ISRO, this sensor uses seven spectral bands for detailed mapping of surface reflectance. |
| Orbit and Spatial Resolution | • TRISHNA will operate in a sun-synchronous orbit at an altitude of 761 km.
• Spatial resolution: 57 meters for land and coastal areas, 1 km for ocean and polar regions. |
| Application and Significance | • Supports water resource management, agriculture, and urban planning through precise data on water stress, crop productivity, and urban heat islands. • Enhances climate resilience by tracking droughts, evapotranspiration, and permafrost changes. • Contributes to global environmental initiatives like GEOGLAM and Sustainable Development Goals (SDGs) by providing key agricultural and climate variables. |
PYQ:[2016] Discuss India’s achievements in the field of Space Science and Technology. How the application of this technology helped India in its socio-economic development? [2010] In the context of space technology, what is “Bhuvan”, recently in the news? (a) A mini satellite launched by ISRO for promoting the distance education in India (b) The name given to the next Moon Impact Probe, for Chandrayaan-II (c) A geoportal of ISRO with 3D imaging capabilities of India (d) A space telescope developed by India |
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