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UW study finds NASA satellite can map 85% of canals
A University of Washington analysis reveals a NASA satellite—designed for ocean monitoring—can map 85% of Asia’s 800,000km of irrigation canals.
A NASA satellite initially designed to chart oceans and lakes is now revealing the hidden circulatory system of global agriculture. Researchers at the University of Washington discovered the Surface Water and Ocean Topography (SWOT) mission can measure water levels with moderate to high confidence at 85% of locations along roughly 800,000 kilometers of irrigation canals in Asia. This unexpected capability could offer a powerful new tool for water management, allowing farmers to better prepare for droughts and improve food security. “What we are seeing is not simply a new satellite capability,” said…
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