Homework 3: Disasters Scenarios
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1. Provide two examples of potential problems to address before, during, or after an earthquake. *
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2. According to a 2018 report by the United Nations Office for Disaster Risk Reduction (UNISDR) and the Centre for Research on the Epidemiology of Disasters (CRED), earthquakes were the third most common disaster, but responsible for the majority of deaths (56%): https://www.unisdr.org/2016/iddr/IDDR2018_Economic%20Losses.pdf. *
3. What is the name of the NASA JPL project that uses Interferometric Synthetic Aperture Radar (InSAR) and Differential Global Positioning Systems (DGPS) to provide imagery to respond to natural disasters? *
4. On a disaster-by-disaster basis, the ARIA team creates a map that indicates significant ground surface change. Preliminary validation is usually done by comparing SAR images and what satellite imagery? *
5. Landslides can be triggered by which of the following? *
6. Precipitation is the most common trigger of landslides. *
7. Go to the NASA Disasters homepage: https://disasters.nasa.gov/home. Under "DISASTERS" at the top of the page, click on "Landslides." Click on some of the links under the "Disasters" heading on the right of the webpage to learn more about these events and which satellite data were used to assess them. List 3 of the landslide events found on this webpage: *
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8. Go to the NASA Disasters homepage: https://disasters.nasa.gov/home. Under "RESOURCES" at the top of the page, click on "NASA Disasters Mapping Portal." Explore this webpage to learn more about how NASA derived data products contribute to disasters events. Scroll down the webpage and click on the link for "Landslides." List 3 of the results below: *
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9. The Landslide Hazard Assessment for Situational Awareness (LHASA) is a tool that provides forecasts of the current risks of landslides by comparing precipitation data from the last seven days with long-term precipitation data. In places where precipitation is unusually high, the susceptibility of the terrain is evaluated, which includes information on the presence of roads; if the trees have been cut down or burned; if there is a nearby tectonic fault; if the local bedrock is weak or if the slopes are steep. *
10. Describe how you might use remote sensing for your work in landslides and earthquakes. *
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