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 PresentationTRANSCRIPT
![Page 1: Watershed and Stream Network Delineation on Alaska’s North Slope](https://reader036.vdocuments.mx/reader036/viewer/2022062323/56815ebf550346895dcd46ca/html5/thumbnails/1.jpg)
Watershed and Stream Network Delineation on Alaska’s North Slope
![Page 2: Watershed and Stream Network Delineation on Alaska’s North Slope](https://reader036.vdocuments.mx/reader036/viewer/2022062323/56815ebf550346895dcd46ca/html5/thumbnails/2.jpg)
Arctic Climate Change
• IPCC AR4 Projections (2007)– Increased temperature• Winter larger• Summer smaller
– Increased precipitation• Winter larger• Summer smaller
• Changes in Arctic Hydrology
![Page 3: Watershed and Stream Network Delineation on Alaska’s North Slope](https://reader036.vdocuments.mx/reader036/viewer/2022062323/56815ebf550346895dcd46ca/html5/thumbnails/3.jpg)
Climate Change
![Page 4: Watershed and Stream Network Delineation on Alaska’s North Slope](https://reader036.vdocuments.mx/reader036/viewer/2022062323/56815ebf550346895dcd46ca/html5/thumbnails/4.jpg)
Climate Change
![Page 5: Watershed and Stream Network Delineation on Alaska’s North Slope](https://reader036.vdocuments.mx/reader036/viewer/2022062323/56815ebf550346895dcd46ca/html5/thumbnails/5.jpg)
Arctic Streams
5/21/2009
![Page 6: Watershed and Stream Network Delineation on Alaska’s North Slope](https://reader036.vdocuments.mx/reader036/viewer/2022062323/56815ebf550346895dcd46ca/html5/thumbnails/6.jpg)
Arctic Streams
6/18/2009
![Page 7: Watershed and Stream Network Delineation on Alaska’s North Slope](https://reader036.vdocuments.mx/reader036/viewer/2022062323/56815ebf550346895dcd46ca/html5/thumbnails/7.jpg)
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 ???
![Page 8: Watershed and Stream Network Delineation on Alaska’s North Slope](https://reader036.vdocuments.mx/reader036/viewer/2022062323/56815ebf550346895dcd46ca/html5/thumbnails/8.jpg)
Study Area
![Page 9: Watershed and Stream Network Delineation on Alaska’s North Slope](https://reader036.vdocuments.mx/reader036/viewer/2022062323/56815ebf550346895dcd46ca/html5/thumbnails/9.jpg)
Study Area
![Page 10: Watershed and Stream Network Delineation on Alaska’s North Slope](https://reader036.vdocuments.mx/reader036/viewer/2022062323/56815ebf550346895dcd46ca/html5/thumbnails/10.jpg)
Study Area
• Sampling Sites– 3 Mountain– 3 Tundra
•Watershed area ?
![Page 11: Watershed and Stream Network Delineation on Alaska’s North Slope](https://reader036.vdocuments.mx/reader036/viewer/2022062323/56815ebf550346895dcd46ca/html5/thumbnails/11.jpg)
Methods
![Page 12: Watershed and Stream Network Delineation on Alaska’s North Slope](https://reader036.vdocuments.mx/reader036/viewer/2022062323/56815ebf550346895dcd46ca/html5/thumbnails/12.jpg)
Study Area
• Sampling Sites– 3 Mountain– 3 Tundra
•Watershed area ?
![Page 13: Watershed and Stream Network Delineation on Alaska’s North Slope](https://reader036.vdocuments.mx/reader036/viewer/2022062323/56815ebf550346895dcd46ca/html5/thumbnails/13.jpg)
Watershed AreasSite Area (km²)
Trevor Creek 42.5Rochee Mountanee 83.9Atigun 609.2Kuparuk 138.0Oks Creek 77.1Imnavait 1.6
![Page 14: Watershed and Stream Network Delineation on Alaska’s North Slope](https://reader036.vdocuments.mx/reader036/viewer/2022062323/56815ebf550346895dcd46ca/html5/thumbnails/14.jpg)
Further Work…
• land cover type ?
• drainage density ?
![Page 15: Watershed and Stream Network Delineation on Alaska’s North Slope](https://reader036.vdocuments.mx/reader036/viewer/2022062323/56815ebf550346895dcd46ca/html5/thumbnails/15.jpg)
Questions ???