Unambiguous detection of OH and H2O on the Moon from Chandrayaan-2 IIRS reflectance data using 3 micrometer hydration feature

Imaging Infrared Spectrometer (IIRS) reflectance data analyzed to unambiguously detect and quantify lunar 3 micrometer absorption feature. A physics based thermal correction analysis of IIRS reflectance spectra has been done using co-located temperature measurements. Hydration absorption was observed at all latitudes and surface types with varying degrees for all pixels in the study area and its absorption depth shows distinct variability associated with mineralogy, surface temperature and latitude.

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