While difficult accessibility leads to a lack of oceanographic in-situ measurements in the Arctic Ocean, and in particular in the Chukchi Sea, satellite altimetry provides precise information on the sea surface at different spatial and temporal scales and can be used for studies of current patterns. Here, we created a novel long-term altimetry-based observational dataset of sea level and ocean currents, processed with the impl...

The Yenisei and Khatanga rivers are among the largest estuarine rivers that inflow to the Arctic Ocean. Discharge of the Yenisei River is 1 order of magnitude larger than that of the Khatanga River. However, spatial scales of buoyant plumes formed by freshwater runoff from the Yenisei and Khatanga gulfs are similar. This feature is caused by different tidal forcing in these estuaries, which have similar sizes, climate conditio...