Application of Today's Earth result for flood assessment
Abstract
Flood is one of the main natural disasters that threaten human beings, which is hard to predicate or precisely calculated. Combined with the pros and cons of simulation and observation, Today's Earth system gives a complete portrait of the flood (flood fraction, flood area, discharge, water depth, and storage) in two versions: TE_Global as global scale with the resolution of 0.05deg (land)/0.25deg (river) every 3 hours, and TE_Japan for land surface condition of Japan with high resolution (1/60deg) in hourly step. (https://www.eorc.jaxa.jp/water/).
In this study, we are showing flood fraction on a regional study in Indonesia, which region is lack of in-situ measurement. The forcing data used in this study is GSMaP (Global Satellite Mapping of Precipitation, JAXA), models are MATSIRO and CaMa-Flood (https://www.eorc.jaxa.jp/water/). In this study, we compared flood fraction (FF) of TE and the wet fraction of GSMaWS (Global Satellite Mapping of Wet Surface, Seto and Mine, 2018), on a global scale. For regional check, FF was also compared with a wet fraction from GDACS (http://www.gdacs.org/flooddetection/searchareas.aspx). The occurrence of floods is subject to local information: the floodlist (http://floodlist.com/). Today's Earth system captured most of the flood event. Results of flood fraction highlight the high-risk zone of flood region on a global scale, which basing on long series of high-resolution data.- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2019
- Bibcode:
- 2019AGUFM.H11M1696M
- Keywords:
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- 1821 Floods;
- HYDROLOGY;
- 1833 Hydroclimatology;
- HYDROLOGY;
- 1840 Hydrometeorology;
- HYDROLOGY;
- 1855 Remote sensing;
- HYDROLOGY