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TitleEffectiveness of aerial and ISERV-ISS RGB photos for real-time urban floodwater mapping: case of Calgary 2013 flood
AuthorZhang, Y; Canisius, F; Zhen, C; Feng, B; Crawford, P; Huang, L
SourceJournal of Applied Remote Sensing vol. 13, issue 4, 044521, 2019 p. 1-15,
Alt SeriesNatural Resources Canada, Contribution Series 20200474
PublisherSociety of Photo-Optical Instrumentation Engineers (SPIE)
Mediapaper; on-line; digital
File formatpdf
NTS82I/13; 82J/16; 82O/01; 82P/04
Lat/Long WENS-114.5000 -113.5000 51.2500 50.7500
Subjectsgeophysics; hydrogeology; Nature and Environment; Science and Technology; Health and Safety; floods; urban geology; mapping techniques; remote sensing; photogrammetric techniques; surface waters; rivers; 2013 Calgary Flood; International Space Station; drones; Space station; Emergency services
Illustrationslocation maps; satellite images; aerial photographs; plots; bar graphs
ProgramThematic Mapping
Released2019 11 23
AbstractHigh-resolution red-green-blue (RGB) images from remote sensors, such as those carried on aircrafts, UAVs, satellites, and the International Space Station (ISS), are cost-effective data sources for real-time emergency response applications. We describe an assessment undertaken on spectral behaviors to evaluate the effectiveness of two high-resolution RGB image datasets for mapping and monitoring of floodwater extent in dense urban areas. The assessment was as part of a case study of the Calgary 2013 flood event. The input imagery included very high-resolution aerial photos and imagery acquired with the SERVIR Environmental Research and Visualization System (ISERV) carried on the ISS. The results demonstrate the complementary nature of these two RGB image sets in providing effective urban floodwater mapping for real-time response. The aerial photos with higher spatial resolution and less atmospheric effect can provide the details about the floodwater distribution; the images from ISERV-ISS can provide the temporal variation of floodwater distribution.
Summary(Plain Language Summary, not published)
Rapid response mapping of flood water extent in urbanized areas is essential for early damage assessment and rescue operations. Images from visible band (RGB) remote sensors (such as those carried on satellites, aircraft, UAVs and the International Space Station) are the most common and cost-effective for the real-time applications. This paper is about a case study of Calgary 2013 event using RGB imagery (including traditional aerial photos and images from a sensor carried on the International Space Station) for flood water mapping over dense urban areas.

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