Description

The purpose of this feature layer is to provide the 2011 overland flooding boundary in the Red River Valley. This dataset shows the extent of peak overland flooding in the Red River Valley in 2011. Data is based on RADARSAT – 1 satellite imagery. During processing, the raw data set was resampled to 12.5 meter pixel resolution, then classified using PCI Geomatica software which is a specialized software designed to manipulate space born imagery.  The final output depicting the flooding boundary is available as a TIFF or Shapefile. Launched in November 1995, RADARSAT-1 was a Canadian-led project which provided useful information to both commercial and scientific users in such fields as disaster management, agriculture, cartography, hydrology, forestry, oceanography, ice studies and coastal monitoring. Equipped with a powerful synthetic aperture radar (SAR) instrument, it acquired images of the Earth day or night, in all weather and through cloud cover, smoke and haze.  As of March 2013, the satellite was declared non-operational and is no longer collecting data. Many applications were developed to take advantage of RADARSAT-1 capacity for detecting the presence of water. These included monitoring flooding and the build-up of river ice, and mapping the melting of snow-covered areas.  When used for flood monitoring, RADARSAT-1 data helped assess the impact of flooding, predicted the extent and duration of floodwaters, analyzed the environmental impact of water diversion projects, and developed flood mitigation measures. Fields Included:FID : Internal feature numberNAME : Flooded area nameAREA_SQKM : Size of flooded area

Resources

Name	Format	Description	Link
CSV	CSV		https://geoportal.gov.mb.ca/api/download/v1/items/4c31cd43e3324aba850dd297b30a27e2/csv?layers=0
Excel	XLS		https://geoportal.gov.mb.ca/api/download/v1/items/4c31cd43e3324aba850dd297b30a27e2/excel?layers=0
Feature Collection	TXT		https://geoportal.gov.mb.ca/api/download/v1/items/4c31cd43e3324aba850dd297b30a27e2/featureCollection?layers=0
File Geodatabase	ZIP		https://geoportal.gov.mb.ca/api/download/v1/items/4c31cd43e3324aba850dd297b30a27e2/filegdb?layers=0
GeoJSON	GeoJSON		https://geoportal.gov.mb.ca/api/download/v1/items/4c31cd43e3324aba850dd297b30a27e2/geojson?layers=0
GeoPackage	Unknown		https://geoportal.gov.mb.ca/api/download/v1/items/4c31cd43e3324aba850dd297b30a27e2/geoPackage?layers=0
KML	KML		https://geoportal.gov.mb.ca/api/download/v1/items/4c31cd43e3324aba850dd297b30a27e2/kml?layers=0
Shapefile	ESRI Shape		https://geoportal.gov.mb.ca/api/download/v1/items/4c31cd43e3324aba850dd297b30a27e2/shapefile?layers=0
SQLite Geodatabase	Unknown		https://geoportal.gov.mb.ca/api/download/v1/items/4c31cd43e3324aba850dd297b30a27e2/sqlite?layers=0
original metadata (https://geoportal.gov.mb.ca)	HTML		https://geoportal.gov.mb.ca/datasets/manitoba::red-river-flood-2011
ArcGIS GeoService	Ersi REST		https://services.arcgis.com/mMUesHYPkXjaFGfS/arcgis/rest/services/img_red_river_flood_2011_metadata/FeatureServer/0
ArcGIS GeoService	Ersi REST		https://services.arcgis.com/mMUesHYPkXjaFGfS/arcgis/rest/services/img_red_river_flood_2011_metadata/FeatureServer/0

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