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Natural Hazards and Earth System Sciences An interactive open-access journal of the European Geosciences Union
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Preprints
https://doi.org/10.5194/nhess-2020-108
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-2020-108
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

  29 Apr 2020

29 Apr 2020

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A revised version of this preprint is currently under review for the journal NHESS.

HazMapper: A global open-source natural hazard mapping application in Google Earth Engine

Corey M. Scheip1,2 and Karl W. Wegmann1,3 Corey M. Scheip and Karl W. Wegmann
  • 1Department of Marine, Earth, and Atmospheric Sciences, North Carolina State University, Raleigh, NC, 27695, USA
  • 2North Carolina Geological Survey, Swannanoa NC, 28778, USA
  • 3Center for Geospatial Analytics, North Carolina State University, Raleigh, NC, 27695, USA

Abstract. Modern satellite networks with rapid repeat-cycles allow for near-real-time imaging of areas impacted by natural hazards such as mass wasting, flooding, and volcanic eruptions. Publicly accessible multi-spectral datasets (e.g. Landsat, Sentinel-2) are particularly helpful in analyzing the spatial extent of disturbances, however, the datasets are large and require intensive processing on high-powered computers by trained analysts. HazMapper is an open-access hazard mapping application developed in Google Earth Engine that allows users to derive map and GIS-based products from Sentinel or Landsat datasets without the time- and cost-intensive resources required for traditional analysis. Case studies are included for the identification of landslides and debris flows, wildfire burn extents, pyroclastic flows, and lava flow inundation. HazMapper is openly-available to the public and is intended for use by both scientists and non-scientists, such as emergency managers and public safety decision-makers. It is the intent of the authors to continue to develop HazMapper with additional capabilities. Collaboration on this effort is encouraged.

Corey M. Scheip and Karl W. Wegmann

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Corey M. Scheip and Karl W. Wegmann

Corey M. Scheip and Karl W. Wegmann

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Latest update: 30 Oct 2020
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Short summary
For many decades, natural disasters have been monitored by trained analysts using multiple satellite images to observe landscape change. This approach is incredibly useful, but our new tool, HazMapper, allows researchers and the scientific-curious public a web-accessible cloud-based tool to perform similar analysis. We intend for the tool to be used both in scientific research and to provide rapid response to global natural disasters like landslides, wildfires, and volcanic eruptions.
For many decades, natural disasters have been monitored by trained analysts using multiple...
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