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Adam’s Bridge is a 48 km lengthy chain of limestone shoals, that have been previously a land bridge between India and Sri Lanka. It was reportedly satisfactory till the fifteenth century, when storms destroyed the integrity of the bridge. The geologic origin of the bridge remains to be controversial. The picture was acquired March 25, 2020, covers an space of 39.6 by 61.7 km, and is positioned at 9.3 levels north, 79.3 levels east.

With its 14 spectral bands from the seen to the thermal infrared wavelength area and its excessive spatial decision of about 50 to 300 toes (15 to 90 meters), ASTER pictures Earth to map and monitor the altering floor of our planet. ASTER is considered one of 5 Earth-observing devices launched Dec. 18, 1999, on Terra. The instrument was constructed by Japan’s Ministry of Economic system, Commerce and Business. A joint U.S./Japan science staff is accountable for validation and calibration of the instrument and knowledge merchandise.

The broad spectral protection and excessive spectral decision of ASTER supplies scientists in quite a few disciplines with crucial info for floor mapping and monitoring of dynamic situations and temporal change. Instance purposes are monitoring glacial advances and retreats; monitoring doubtlessly energetic volcanoes; figuring out crop stress; figuring out cloud morphology and bodily properties; wetlands analysis; thermal air pollution monitoring; coral reef degradation; floor temperature mapping of soils and geology; and measuring floor warmth stability.

The U.S. science staff is positioned at NASA’s Jet Propulsion Laboratory in Pasadena, Calif. The Terra mission is a part of NASA’s Science Mission Directorate, Washington.

Extra details about ASTER is offered at http://asterweb.jpl.nasa.gov/.

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