Flood Risk and Vulnerability Analysis Project - Atlantic Climate ...

5. Task E – Assess Need for Flood Forecasting / Flood Warning System
The objective of this task is to identify communities vulnerable to flooding that should be
considered for flood forecasting and/or flood warning systems. The task was completed through
a review of historical flood observations (i.e., the Flood Events Inventory) and existing flood
hazard and risk maps, combined with ancillary data on precipitation, topography, lifelines
(roads, bridges, etc.), and with census information on population densities, types, and fluxes.
Please note for Task E the names used for communities and areas are a combination of those
that were in place when the FRM studies were done in the 1980s and 1990s and those reflected
by the new LGP numbers due to a need to use data from both old FRM studies and the LGP
list.
5.1 Data Sources
For this identification of vulnerabilities, AMEC relied upon the following data sets:
Updated Flood Events Inventory, as produced for section 0 of this report.
Newfoundland and Labrador, Department of Environment and Conservation Flood
Studies website (Department of Environment and Conservation, 2012) and the
documents contained within, including:
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Community Flood Risk Public Information Maps
Various hydrotechnical and flood studies for the available communities
1992 Water Resources Atlas of Newfoundland (Water Resources Division, 1992)
ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer) digital
terrain data, available at a 20m ground sampling distance (USGS, 2012)
National Hydro Network hydrography data from the GeoBase initiative, overseen by the
Canadian Council on Geomatics (Canadian Council, March 15, 2012)
National Road Network road data from the GeoBase initiative, overseen by the
Canadian Council on Geomatics (Canadian Council, March 2, 2012)
Approved watersheds geodatabase (TA1112733_Watersheds_Dec2011.gdb)
Hurricane and tropical storm track data from Unisys Weather (Unisys Weather, 2011)
Bing Maps Aerial Imagery Layer (ArcGIS, 2010)
Statistics Canada 2011 census data (Statistics Canada, 2012)
TA1112733 page 110