REMOTE SENSING IN ACTION
Satellites take conservation to new heights
Thousands of satellites are circling the planet, enabling everything from TV broadcasts to the GPS app on our smartphones. These satellites are also driving crucial conservation work.
WWF-Canada’s GIS and Spatial Analysis specialist, and her team, have been using 24 years of satellite imagery from the European Space Agency to map how grasslands in Alberta, Saskatchewan and Manitoba have changed in recent decades. Next, they’ll use machine learning — a specific type of artificial intelligence — to forecast how these habitats are likely to change in the next 30 years based on trends in agriculture, urban growth and climate change.
The projections will include changes in precipitation levels, temperature, number of frost-free days and other variables. Those shifts will have huge implications for local species at risk, such as the burrowing owl, Sprague’s pipit, Baird’s sparrow and McCown’s longspur.
Protecting Canada’s landscapes
WWF-Canada and researchers at McMaster University are also leveraging remote sensing technology to understand carbon storage in Canada. Not only does LiDAR map out forest cover, it can also provide enough detail to estimate how much carbon those forests contain based on the height and density of trees.
The project will produce Canada’s first comprehensive map of carbon storage and distribution by 2020. This kind of carbon mapping will be a crucial component for decision makers in determining areas for protection and restoration for mitigating climate change.
Whether it’s mapping carbon storage or sensitive habitats, satellites are increasingly becoming an invaluable part of conservation. The dual crisis of climate change and biodiversity loss is one that must be addressed quickly. This data is key in determining the best to protect Canadian landscapes in the coming years.
Using 24 years of land cover data from the European Space Agency, we have begun to understand human and climate change impacts on the Canadian landscape.