Flood studies include detailed engineering reports and flood maps. The engineering reports are typically technical in nature and document the data, assumptions, and results of the hydrologic and hydraulic analyses required to create flood maps. Flood maps are created by combining hydraulic model results for different sized floods with high-accuracy ground information. Flood maps identify where water will flow during a flood, and what land could be flooded during different sized floods. Most flood maps focus on floods caused by high river flows when water escapes the river channel, most often experienced in spring or following summer rainstorms, but they can also show areas at risk from ice jam floods or document the extent of historic floods.Flood inundation maps show areas at risk for different sized floods, including ice jam floods in some communities, and identify areas protected by flood berms. Because they map a wide range of floods, they are most often used for emergency response planning and to inform local infrastructure design. Flood hazard maps define floodway and flood fringe areas for the 1:100 design flood and are typically used by communities for planning or to help make local land use and development decisions. The floodway is the portion of the flood hazard area where flows are deepest, fastest and most destructive. The flood fringe is the portion of the flood hazard area outside of the floodway, where flood water is generally shallower and flows slower than in the floodway. High hazard flood fringe is the area within the flood fringe with deeper or faster moving water than the rest of the flood fringe. Protected flood fringe identifies areas that could be flooded if dedicated flood berms fail or do not work as designed during the 1:100 design flood. Flood hazard maps define floodway and flood fringe areas for the 1:100 design flood and are typically used by communities for planning or to help make local land use and development decisions. Flood hazard maps can also illustrate additional information for communities to consider, including incremental areas at risk for floods larger than the 1:100 design flood, such as the 1:200 and 1:500 floods.Visit www.floodhazard.alberta.ca for more information about the Flood Hazard Identification Program. The website includes different sections for final flood studies and for draft flood studies. Flood maps can be viewed directly using the Flood Awareness Map Application at https://floods.alberta.ca/. The Alberta Flood Mapping GIS dataset is updated when new information is available or existing information changes. therefore, the Government of Alberta assumes no responsibility for discrepancies at the time of use. Users should check https://geodiscover.alberta.ca/ to verify they have the most recent version of the Alberta Flood Mapping GIS dataset.

This dataset is archived, please refer to: - [Collection – Flood Susceptibility Mapping]( https://open.canada.ca/data/en/dataset/1074f781-85d3-4c86-86cb-fd1c339197dc) for the new release.This national map of flood susceptibility or flood prone areas is based on patterns of historic flood events as predicted by an ensemble machine learning model.The recommended use is national, provincial or regional scale and can be used as a guide for identifying areas for further investigation. The Flood Susceptibility Index (FSI) Dataset, while processed and available at 30m cell size, is not recommended for use at the pixel or street level, given the uncertainty in the modelling process and the variability of results as discussed in https://www.mdpi.com/2673-4931/25/1/18 .For additional details on the methods, tests, models and datasets used to generate this data layer, please see https://geoscan.nrcan.gc.ca/starweb/geoscan/servlet.starweb?path=geoscan/fulle.web&search1=R=329493

Current weather induced overland flood alertsThe Hydrologic Forecast Centre (HFC) issues several categories of flood alert throughout the year including riverine flooding due to snowmelt and rainfall, wind and wave induced shoreline flooding and ice pileup, and rainfall induced overland flooding. This layer demonstrates the location and/or extend of current alerts due to rainfall induced overland flooding. The types are defined below:Overland Flood Warning: A severe weather warning that is issued to alert the public that overland flooding is imminent or occurring in the warned area. Overland flooding is a quick onset of flood conditions, usually occurring after heavy rain that may not be linked to a specific waterway or lake. Rainfall intensity and duration, topography, soil conditions and ground cover are factors impacting overland flooding. Overland flooding can also occur because of a sudden release of water held by an ice jam.Overland Flood Watch: A severe weather watch that is issued when conditions are favourable for overland flooding. Normally issued when significant rainfall is expected in locations with saturated soil.

This series of projected future flood susceptibility maps were generated using an XGBoost machine learning model trained on major floods from 2005 to 2023. The trained model was applied to future climate scenarios for 2050, 2070, and 2100, under two SSP scenarios: 245 and 585. The model uses temperature and precipitation time series to estimate potential future flood susceptibility. These maps represent model projections and should be interpreted as indicators of potential flood susceptibility, not precise forecasts.This dataset forms part of a broader collection of flood susceptibility datasets, offering related information and analyses. The collection includes an overview page with associated publications, historic susceptibility values, temporal trends, and future projections.- [Collection – Flood Susceptibility Mapping]( https://open.canada.ca/data/en/dataset/1074f781-85d3-4c86-86cb-fd1c339197dc)- [Historic - Flood Susceptibility Mapping]( https://open.canada.ca/data/en/dataset/ea1384df-bf4a-4743-97bb-870dc43f8d77)- [Trends and Extremes – Flood Susceptibility Mapping]( https://open.canada.ca/data/en/dataset/3202e0a0-0afb-4120-b102-b0c41f0fb9eb)

Flood risk areas display the extent of known historical flood events as well as areas that have a probability of flooding as determined from historical records.The polygon data includes the description of the flood event, the typical causes of the flood and any associated place name keys.The line data indicates the limits of the flood risk mapping information and the 2008 and 2018 flood data.Flood extents for the 2008 and 2018 Lower Saint John River floods are included.

This collection of flood susceptibility products captures temporal patterns of historic flood events from 2000 to 2023, derived from flood susceptibility maps. The layers are designed to support decision-making by providing easily interpretable information for planning, screening, and other management purposes.This collection contains several datasets which explore the suite of rasters from 2000 to 2023:- Extreme wet and extreme dry years and the associated average flood susceptibility, processed by NHN WU, as found by Generalized Extreme Value (GEV) analysis- Flood susceptibility envelope, which is derived from the above wet and dry years- Trend slope, for each pixel the value for each year is extracted and the linear trend is computed, greater than 1000 is increasing flood susceptibility and below 1000 is decreasing flood susceptibility. - Trend Class, as identified by wet and dry scores, applied to NHN WU- Current flood susceptibility, which represents the estimated average value of present-day flood susceptibility- Current interquartile range, which provides and indication of the temporal variability of a given pixel under the current regime.This dataset forms part of a broader collection of flood susceptibility datasets, offering related information and analyses. The collection includes an overview page with associated publications, historic susceptibility values, temporal trends, and future projections.- **[Collection - Flood Susceptibility Mapping](https://open.canada.ca/data/en/dataset/1074f781-85d3-4c86-86cb-fd1c339197dc)**- **[Historic - Flood Susceptibility Mapping](https://open.canada.ca/data/en/dataset/ea1384df-bf4a-4743-97bb-870dc43f8d77)**- **[Future - Flood Susceptibility Mapping](https://open.canada.ca/data/en/dataset/c00f95a3-7bab-4d28-b9cc-b30f06b5afd2)**

This series of historic flood susceptibility maps comes from an XGBboost machine learning model trained on major floods from 2005 to 2023. The trained model is then run for each year from 2000 to 2023, including unique temporal characteristics of temperature, precipitation, land use land cover and Normalized Difference Vegetation Index (NDVI), to predict the flood susceptibility of any given year.This dataset forms part of a broader collection of flood susceptibility datasets, offering related information and analyses. The collection includes an overview page with associated publications, historic susceptibility values, temporal trends, and future projections.- [Collection – Flood Susceptibility Mapping]( https://open.canada.ca/data/en/dataset/1074f781-85d3-4c86-86cb-fd1c339197dc)- [Trends and Extremes – Flood Susceptibility Mapping]( https://open.canada.ca/data/en/dataset/3202e0a0-0afb-4120-b102-b0c41f0fb9eb)- [Future - Flood Susceptibility Mapping]( https://open.canada.ca/data/en/dataset/c00f95a3-7bab-4d28-b9cc-b30f06b5afd2)

Historical floodplain boundaries in BC with a descriptive feature name for each floodplain area (i.e., 200-year floodplain, alluvial fan, or nothing/out-of-floodplain). Digitized from hardcopy 1:5,000 Floodplain Mapsheets for each project area

Layer that includes the known information on potential haul-out sites for the harbour seal and gray seal in the Estuary and Gulf of St. Lawrence according to a literature review of documents produced between 1978 and 2000.Additional InformationPotential haul-out sites for the harbor seal and gray seal were produced according to a literature review of the following documents:Andersen, A. et M. Gagnon. 1980. Les ressources halieutiques de l'estuaire du Saint-Laurent. Rapp. can. ind. sci. halieut. aquat., 119: iv + 56 p.Argus Groupe-Conseil inc. 1992. Synthèse et analyse des connaissances relatives aux ressources naturelles du Saguenay et de l'estuaire maritime du Saint-Laurent. Parc marin du Saguenay. Service canadien des parcs, région du Québec.Biorex. 1995. Cartographie des ressources halieutiques et de leurs habitats dans l'estuaire moyen du Saint-Laurent. Rapport au ministère des Pêches et des Océans, Région du Québec, Division de la gestion de l'habitat du poisson. 36 p. + annexes. Biorex. 1996. Base de données géoréférencées sur les ressources halieutiques et leurs habitats : estuaire maritime du Saint-Laurent et fjord du Saguenay. Rapport au ministère des Pêches et des Océans, Région du Québec, Division de la gestion de l'habitat du poisson. Volume 1 : 38 p. + annexes et Volume 2 : 34 p. + annexes.Chevrier, V. 1994. Cartographie des habitats du poisson aux Îles-de-la-Madeleine. Rapport technique no. 1. Réalisé en collaboration avec le M.P.O., Attention Frag'Îles et la M.R.C. des Îles-de-la-Madeleine. 24 p. + 1 ann. + 36 cartes.Comité de la zone d'intervention prioritaire (ZIP) de la Côte-Nord du golfe. 1999. Inventaire des habitats côtiers et marins sensibles de la Basse-Cote-Nord : Rapport final, présenté à Pêches et Océans Canada par le Comité ZIP Côte-Nord du Golfe. 126 p.Comité de protection de la santé et de l'environnement de Gaspé inc. (C.P.S.E.G.). 1996.Communication personnelle par Carol Fournier, MPO. 1999. Communications personnelles par Gosselin, J-F-. 1996. Desaulniers, J. 1989. Étude des populations de pinnipèdes de l'Archipel-de-Mingan et relation entre l'activité de chasse au phoque et la sécurité publique 1987 à 1989. Parcs Canada. Région du Québec. Service de la conservation des ressources naturelles.Enquêtes auprès des pêcheurs. 1995.Lavigne, P.-J. 1978. La chasse estivale du phoque dans le Saint-Laurent. Rapport non publié. 65 p. Pêches et Océans Canada, Région du Québec.Lesage, Véronique. 2000. Communication personnel.Lesage, V., M. O. Hammill, and K.M. Kovacs. 1995. Harbour seal (Phoca vitulina) and Grey seal (Halichoerus grypus) abundance in the St. Lawrence estuary. Can. Manuscr. Rep. Fish. Aquat. Sci. 2307: iii + 19 p.Naturam Environnement inc. 1996. Caractérisation physique et biologique de l'habitat du poisson du secteur de Pointe-aux-Outardes. Realisé pour le compte de la Corporation du Parc régional de Pointe-aux-Outardes. 196 p.

A national map of flood susceptibility or flood prone areas based on patterns of historic flood events as predicted by an ensemble machine learning model. The recommended use is national, provincial or regional scale and can be used as a guide for identifying areas for further investigation. This dataset, while processed and available at 30m cell size, is not recommended for use at the pixel or street level, given the uncertainty in the modelling process and the variability of results as discussed in https: **This third party metadata element follows the Spatio Temporal Asset Catalog (STAC) specification.**