This National Science Foundation Project Grant award of $209,612 provides funding from August 1, 2022 through July 31, 2025 to support collaborative research examining the geomorphic legacy of megaflood deposits on river processes and landform evolution in the Eastern Himalaya mountains. The award is made through NSF's Geosciences program (CFDA 47.050), which aims to expand fundamental knowledge of integrated Earth system processes through basic research in atmospheric, earth, and ocean sciences.
Specifically, the grantee Georgia Tech Research Corporation will conduct fieldwork to determine the source, depositional age, and grain size distribution of unique flood deposits in the region using advanced analytical tools. They will also develop a process-based numerical model to predict changes to bedrock river channels following abrupt flood aggradation. Finally, the researchers will analyze the morphology of Himalayan river channels with and without a history of megaflooding to search for a unique topographic signature of megaflood processes. The results have the potential to enhance understanding of sediment deposition influences on long-term river valley evolution in mountainous landscapes.
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