360° UPSC Mains Analysis

Moon Base | India’s lunar future

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Flora & Fauna

Mangrove Ecosystems
Status: Critically Endangered to Least Concern (varying by region)
Threat: Threatened by coastal development and climate change; monitored by NISAR for biomass loss and degradation [1.1.1].
Wetland Ecosystems
Status: Ramsar Convention protected
Threat: Threatened by land-use conversion and drainage; monitored by NISAR to track carbon release and hydrological changes.
Tropical Rainforests
Status: Vulnerable to Critically Endangered (varying by region)
Threat: Threatened by deforestation and wildfires; NISAR tracks forest canopy disturbances and biomass changes.

Ecology Impact

The article highlights the launch of the NASA-ISRO Synthetic Aperture Radar (NISAR) mission, which plays a critical role in monitoring terrestrial ecosystems, including forest biomass, wetlands, and mangrove degradation. It tracks changes in vegetative cover and land-use patterns, providing high-resolution data to mitigate ecological degradation and habitat loss. Additionally, the mission aids in tracking coastal resilience and wetland management globally.

Science & Tech Angle

The underlying technology is the NASA-ISRO Synthetic Aperture Radar (NISAR), which is the first satellite mission to use dual-frequency radar (L-band and S-band) to map Earth's surface changes. This active remote sensing technology penetrates cloud cover, dense vegetation, and darkness to detect surface movements as small as one centimeter. It generates high-resolution time-lapse imagery every 12 days, providing unprecedented data on crustal deformation, cryosphere dynamics, and ecosystem disturbances.

Climate Change Link

The NISAR mission directly supports climate change monitoring by tracking the melt rates of glaciers and ice sheets, which are critical indicators of global sea-level rise. It measures carbon cycle dynamics by observing the capture and release of carbon in forests and wetlands, helping nations assess their progress under the Paris Agreement. The dual-frequency radar system provides precise data on land surface changes to improve climate forecasting and disaster preparedness.

Sustainable Development

The NISAR mission directly supports SDG 13 (Climate Action) and SDG 15 (Life on Land) by providing open-access data to monitor terrestrial ecosystems and combat climate change. It also aligns with SDG 9 (Industry, Innovation, and Infrastructure) and SDG 17 (Partnerships for the Goals) through the collaborative development of advanced space technology between NASA and ISRO.

International Frameworks

Paris Agreement (2015)
NISAR's data on forest biomass and wetland carbon dynamics helps countries track carbon sinks and report accurate Nationally Determined Contributions (NDCs) under the Paris Agreement [1.1.4].
Ramsar Convention on Wetlands (1971)
Provides critical radar data to monitor the ecological character of Ramsar sites and wetlands globally, aiding in their conservation.
Outer Space Treaty (1967)
Article IX of the treaty mandates that states conduct exploration of outer space, including the Moon, so as to avoid their harmful contamination and also adverse changes in the environment of the Earth.

Sources consulted

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