Global Landslide Nowcast from LHASA L4 1 day 1 km x 1 km version 2.0.0 (Global_Landslide_Nowcast) at GES DISC

Description

The Global Landslide Nowcast addresses the need for real-time situational awareness of landslide hazard. The Landslide Hazard Assessment for Situational Awareness model (LHASA) combines satellite rainfall estimates from the Global Precipitation Measurement mission (GPM) with soil moisture estimates from the Soil Moisture Active Passive (SMAP) satellite and other factors to produce a map of locations where rainfall-triggered landslide activity is probable. Due to the latency of the rainfall data, the nowcast is a near-real time product with a minimum latency of 5 hours. Although the model could be run every half hour, this archive contains a daily record derived from a retrospective model run.The Global Landslide Nowcast version 2.0.0 retains replaces the heuristic decision tree from version 1.0 with a machine learning model. Instead of merging all factors other than precipitation into a susceptibility map, LHASA 2.0 takes in each variable as a separate input layer. The most important change is the replacement of the categorical nowcast with a probabilistic output. This will enable users to adjust the threshold to suit their specific application and geographic location.

Resources

Name Format Description Link
5 https://docserver.gesdisc.eosdis.nasa.gov%2Fpublic%2Fproject%2FImages%2FGlobal_Landslide_Nowcast_2.0.0.png
5 https://disc.gsfc.nasa.gov%2Fdatacollection%2FGlobal_Landslide_Nowcast_2.0.0.html
5 https://acdisc.gesdisc.eosdis.nasa.gov%2Fdata%2FLandslide%2FGlobal_Landslide_Nowcast.2.0.0%2F
5 https://landslides.nasa.gov%2F
5 https://search.earthdata.nasa.gov%2Fsearch%3Fq%3DGlobal_Landslide_Nowcast
5 https://www.frontiersin.org%2Farticles%2F10.3389%2Ffeart.2021.640043%2Ffull
5 https://docserver.gesdisc.eosdis.nasa.gov%2Fpublic%2Fproject%2FCommunity%2FLHASA%2FREADME.Global_Landslide_Nowcast_2.0.0.pdf
34 Global_Landslide_Nowcast_2.0.0.png https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/Global_Landslide_Nowcast_2.0.0.png
21 Global_Landslide_Nowcast_2.0.0.html https://disc.gsfc.nasa.gov/datacollection/Global_Landslide_Nowcast_2.0.0.html
5 https://acdisc.gesdisc.eosdis.nasa.gov/data/Landslide/Global_Landslide_Nowcast.2.0.0/
33 README.Global_Landslide_Nowcast_2.0.0.pdf https://docserver.gesdisc.eosdis.nasa.gov/public/project/Community/LHASA/README.Global_Landslide_Nowcast_2.0.0.pdf
5 https://landslides.nasa.gov/
5 https://search.earthdata.nasa.gov/search?q=Global_Landslide_Nowcast
5 https://www.frontiersin.org/articles/10.3389/feart.2021.640043/full

Tags

  • earth-science-natural-hazards-human-dimensions-landslides

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