20261009 15241500 1.0 TRUE 150000000 5000 ItemDescription <div style='text-align:Left;'><div><div><p><span style='font-weight:bold;'>Dates Available:</span></p><p><span>April 2021 - Present</span></p><p><span style='font-weight:bold;'>Update Frequency:</span></p><p><span>Twice a day</span></p><p><span style='font-weight:bold;'>Summary:</span></p><p><span>Landslides are a widespread and often underestimated natural hazard, causing thousands of deaths and significant economic damage each year. They routinely block roads, destroy infrastructure, and disrupt communities worldwide. While intense or prolonged rainfall is the most common landslide trigger, earthquakes and human activities can also cause them.</span></p><p><span>The global Landslide Hazard Assessment for Situational Awareness (LHASA) model provides users with a comprehensive view of landslide hazard in near real-time. Using machine learning, LHASA combines rainfall data from the Global Precipitation Measurement (GPM) satellite with antecedent soil moisture from the Soil Moisture Active Passive (SMAP) satellite to identify areas currently at risk from landslides. The model shows where and when landslides are most probable, then calculates the exposed population and road length within each administrative district, helping users understand both the hazard and potential impacts on communities and infrastructure.</span></p><p><span>To learn more please visit: https://landslides.nasa.gov/</span></p><p><span style='font-weight:bold;'>Suggested Use:</span></p><p><span>LHASA 2.1 was created to enable global monitoring of landslide hazard and is not a substitute for local site investigations. Red indicates high hazard and blue indicates low hazard. </span></p><p><span>LHASA nowcast Hazard: "yesterday", "today", and "tomorrow": This map shows the relative probability of landslide occurrence yesterday, today, and tomorrow; respectively, based on rainfall estimates from GPM and forecasts from GEOS-FP.</span></p><p><span style='font-weight:bold;'>Satellite/Sensor:</span></p><p><span>GPM, SMAP</span></p><p><span style='font-weight:bold;'>Resolution:</span></p><p><span>30 arcseconds (~1 kilometer)</span></p><p><span style='font-weight:bold;'>Credits:</span></p><p><span>NASA GSFC</span></p><p><span>Users are requested to cite the following paper:</span></p><p><span>Stanley, T. A., D. B. Kirschbaum, G. Benz, et al. 2021. "Data-Driven Landslide Nowcasting at the Global Scale." Frontiers in Earth Science, 9: [10.3389/feart.2021.640043]</span></p></div></div></div> NASA GSFC LHASA Landslide Hazard Landslide Rainfall near real-time NASA NASA Disasters Response Coordination System NASA Disasters Program Landslides Hurricane Isaias <div style='text-align:Left;'><div><p><span>NASA data and products are freely available to federal, state, public, non-profit and commercial users. This information can be experimental- or research-grade data products and may not be appropriate for operational use. These NASA data products, services, and the Disasters Mapping Portal are intended to aid decision makers and enhance situational awareness, but these data are not guaranteed to be consistently available or routinely updated. Please cite the information according to the direction provided in the metadata.</span></p></div></div> lhasa_202625 20261009