Watershed and Stream Network Delineation on Alaska’s North Slope
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Watershed and Stream Network Delineation on Alaska’s North Slope
description
Watershed and Stream Network Delineation on Alaska’s North Slope . Arctic Climate Change. IPCC AR4 Projections (2007) Increased temperature Winter larger Summer smaller Increased precipitation Winter larger Summer smaller Changes in Arctic Hydrology. Climate Change. Climate Change. - PowerPoint PPT Presentation
Transcript of Watershed and Stream Network Delineation on Alaska’s North Slope
Watershed and Stream Network Delineation on Alaska’s North Slope
Arctic Climate Change
• IPCC AR4 Projections (2007)– Increased temperature• Winter larger• Summer smaller
– Increased precipitation• Winter larger• Summer smaller
• Changes in Arctic Hydrology
Climate Change
Climate Change
Arctic Streams
5/21/2009
Arctic Streams
6/18/2009
Arctic Streams
• High amounts of organic matter– Carbon and Nitrogen
• Sites of Biogeochemical transformations– Organic matter conduits– System loss pathways
• How will they be affected ???
Study Area
Study Area
Study Area
• Sampling Sites– 3 Mountain– 3 Tundra
•Watershed area ?
Methods
Study Area
• Sampling Sites– 3 Mountain– 3 Tundra
•Watershed area ?
Watershed AreasSite Area (km²)
Trevor Creek 42.5Rochee Mountanee 83.9Atigun 609.2Kuparuk 138.0Oks Creek 77.1Imnavait 1.6
Further Work…
• land cover type ?
• drainage density ?
Questions ???
