00000cam 2200000zi 4500 9.949434 CaOODSP 20260213143436 m o d f cr cn||||||||| 250324t20252025oncab ob f000 0 eng d 9780660766041 CaOODSP eng rda CaOODSP n-cn--- M45-159/2025E-PDF Davidson, Sarah, author. Geomorphic considerations in flood mapping. [Ottawa] : Natural Resources Canada = Ressources naturelles Canada, 2025. ©2025 1 online resource (vi, 54 pages) : colour illustrations, colour maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Natural Resources Canada, general information product ; 159e Federal flood mapping technical bulletins series Issued also in French under title: Considérations géomorphologiques dans la cartographie des zones inondables. "[A]uthors of this technical bulletin: Sarah Davidson, Hamish Weatherly, and Haley Williams …"--Acknowledgements, page iv. Includes bibliographical references (pages 48-54). "This technical bulletin provides guidance on when and how to consider geomorphology in flood mapping. Hydrogeomorphic processes affect flood inundation and intensity through changes to the flow density, blocking of river channels or culverts, and increases or decreases in the riverbed elevation through deposition and scour. They can also change the spatial distribution of flooding through changes in river size and planform due to bank erosion or avulsion (the creation of a new channel) and reduce the stability of hillslopes through slope undercutting. This technical bulletin is targeted at decision-makers commissioning and applying flood mapping studies and technical practitioners carrying out the work. …"--Introduction, pages 1-2. Co-published by: Environment and Climate Change Canada. Floods Canada Maps. Floodplains Canada Maps. Hydrogeomorphology Canada. Canada. Natural Resources Canada, issuing body. Canada. Environment and Climate Change Canada, issuing body. Considérations géomorphologiques dans la cartographie des zones inondables. (CaOODSP)9.949433 General information product (Canada. Natural Resources Canada) 159e. (CaOODSP)9.822750 PDF 15.40 MB https://publications.gc.ca/collections/collection_2026/rncan-nrcan/m45/M45-159-2025-eng.pdf HTML N/A https://doi.org/10.4095/phbqypfv6s