Ponds and lakes may have limited species diversity since they are often isolated from one another and from other water sources like rivers and oceans. Many ponds are seasonal, lasting just a couple of months (such as sessile pools) while lakes may exist for hundreds of years or more. Scattered throughout the earth, several are remnants from the Pleistocene glaciation. These regions range in size from just a few square meters to thousands of square kilometers. There are different types of freshwater regions: Plants and animals in freshwater regions are adjusted to the low salt content and would not be able to survive in areas of high salt concentration (i.e., ocean). The Freshwater Atlas allows users to connect a stream to both its tributaries and the watersheds associated with them.Freshwater is defined as having a low salt concentration usually less than 1%. has its own watershed, but is also linked to the other streams and watersheds around it. Watersheds are bounded by heights of land, which provide the definitive reference for many administrative boundaries and land tenures. Display Freshwater Atlas data in Google Earth (KML)ĭownload the Freshwater Atlas for the entire Province of British Columbia:įreshwater Atlas datasets can be downloaded from the B.C.Open iMapBC in an Internet Explorer browser:įreshwater Atlas data for Ceakamus River Basin and Nanaimo River Basin can be opened in Google Earth: How to Acquireįreshwater Atlas data can be viewed through the iMapBC application. If your business area is interested in a customized application please contact for more information. Although this core application only has the streams portrayed we have tested the application with information such as Points of Diversion, and Environmental Monitoring sites to show what is impacted upstream or downstream. This application represents a proof of concept to show how the upstream and downstream can be portrayed and it outlines how a user could attach other information to the streams for a specific business purpose. The Fresh Water Atlas Visualization is helpful for planners, responders and other business areas to be able to see what lies downstream or upstream of an intended project or incident. Each stream in the province has its own watershed (the land drained by that stream) but it is also linked to the other streams and watersheds around it.Īs technology has advanced we have been able to portray the information contained in the FWA database as a visual to show upstream and downstream flow. The atlas defines watershed boundaries by height of land and provides a connected network of streams, lakes and wetlands. The Freshwater Atlas (FWA) was completed in the fall of 2009 and is a standardized dataset for mapping the province's hydrological features. Freshwater Atlas Warehouse Model Specification (PDF)ĭescriptions of Freshwater Atlas data available from the B.C.The following documents provide guidance on accessing Freshwater Atlas data: Create your own maps and views by combining Freshwater Atlas data with other provincial datasets.Ī high-level overview of intended and potential uses of Freshwater Atlas data: Navigate through Freshwater Atlas data with the help of an application based on Web Map Service (WMS) standards. The dataset is available in ARC_SDE format and BC Albers projection. Data should be displayed at a scale greater than 1:75,000 for best results. The atlas provides a consistent base and coding system, ensuring the Province’s various freshwater-related inventories are tied to a common base.įreshwater Atlas data is generally dense. The Freshwater Atlas was designed to be the definitive source for mapping freshwater features in B.C. Freshwater Atlas Executive Summary (PDF).The Freshwater Atlas has been developed as a management tool to ensure freshwater resources in B.C. The quality of B.C.’s water is a reflection of the environmental, economic and social well-being of our province.
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