Long-term records of annual discharge for Eurasian and North American Arctic rivers. The Eurasian rivers are the Severnaya Dvina, Pechora, Ob', Yenisey, Lena, and Kolyma. The North American rivers are the Yukon and Mackenzie. Note the different scales for the Eurasian and North American river discharge; discharge from the former is 3-4 times greater than it is from the latter. The horizontal lines show long-term mean discharge values for the Eurasian (1,809 km3 y-1) and North American (493 km3 y-1) rivers

Map showing the watersheds of the eight rivers featured in this report. Together they cover 70% of the 16.8 x 106 km2 pan-Arctic watershed. The red dots show the location of the discharge monitoring stations and the red line shows the boundary of the pan-Arctic watershed.

Annual discharge of Lena, Ob and Yenisey Rivers. Data from the ArcticRIMS database and R-ArcticNET database. Click for larger image.

Arctic river basins map from the Arctic Great Rivers Observatory. Click to see larger image. Also available is an alternate map of river basins from the Arctic Climate Impact Assessment Report.