Abstract
Accurate and precise spatial hydrologic information is essential for effective management of natural resources, planning, and disaster response. Very high-resolution images and precise digital elevation models (DEMs) are crucial to accurately predict overflow in urban and mountainous regions; however, available course resolution DEMs with insufficient details cannot provide reliable overflow models. In this context, unmanned aerial vehicles (UAVs) offer a competitive alternative over satellites or airplanes and provide high spatial details essential for significant improvement of hydrological modeling. In this study, photogrammetric processing that includes stereo images captured via a fixed-wing drone were processed to generate a high-resolution DEM for the area surrounding the Hatta Dam in the United Arab Emirates. Three levels of details were introduced: data collection, photogrammetric processing, and hydrologic modeling. This study determined that flow modeling based on the UAV DEMs resulted in accurate hydrological modeling.
Original language | English |
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Title of host publication | 2019 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2019 - Proceedings |
Place of Publication | Piscataway, NJ |
Pages | 951-954 |
Number of pages | 4 |
DOIs | |
Publication status | Published - 14 Nov 2019 |
Event | 39th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2019 - Yokohama, Japan Duration: 28 Jul 2019 → 2 Aug 2019 |
Conference
Conference | 39th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2019 |
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Country/Territory | Japan |
City | Yokohama |
Period | 28/07/19 → 2/08/19 |
Keywords
- digital elevation model
- drainage pattern
- hydrological modeling
- photogrammetry
- UAV
- very high-resolution images