India’s Southwest Monsoon Rain Evaporates Below Clouds
Indian Institute of Tropical Meteorology (IITM), Pune, using primary Southwest monsoon measurements over the northern Western Ghats and Pune, found ~25% of monsoon rain mass evaporates below-cloud before reaching ground, with day-to-day loss ranging 4–61%, driven by ambient temperature, heat and dry air. It used isotopic enrichment, freezing/trapping vapour and rain, laser spectrometry, and a below-cloud interaction model; larger monsoon drops and higher humidity limit losses.
The Hindu


