Changing freshwater contributions to the Arctic

  title={Changing freshwater contributions to the Arctic},
  author={Tricia A. Stadnyk and A. A. G. Tefs and M. Broesky and Stephen J. D{\'e}ry and Paul G. Myers and Natasha A. Ridenour and Kristina A. Koenig and L. Vonderbank and David Gustafsson},
The pan-Arctic domain is undergoing some of Earth’s most rapid and significant changes resulting from anthropogenic and climate-induced alteration of freshwater distribution. Changes in terrestrial freshwater discharge entering the Arctic Basin from pan-Arctic watersheds significantly impact oceanic circulation and sea ice dynamics. Historical streamflow records in high-latitude basins are often discontinuous (seasonal or with large temporal gaps) or sparse (poor spatial coverage), however… 

Changing freshwater contributions to the Arctic: A 90-year trend analysis (1981-2070)

The pan-Arctic domain is undergoing some of Earth’s most rapid and significant changes resulting from anthropogenic and climate-induced alteration of freshwater distribution. Changes in terrestrial

Simulated impacts of relative climate change and river discharge regulation on sea ice and oceanographic conditions in the Hudson Bay Complex

In this analysis, we examine relative contributions from climate change and river discharge regulation to changes in marine conditions in the Hudson Bay Complex using a subset of five atmospheric

Canadian Continental-Scale Hydrology under a Changing Climate: A Review

Canada, like other high latitude cold regions on Earth, is experiencing some of the most accelerated and intense warming resulting from global climate change. In the northern regions, Arctic

Representing climate evolution in ensembles of GCM simulations for the Hudson Bay System

Climate impact studies often require a reduction of the ensembles of opportunity from the Coupled Model Intercomparison Project when the simulations are used to drive impact models. An impact model’s

Arctic cod (Boreogadus saida) hatching in the Hudson Bay system

Buoyant Arctic cod (Boreogadus saida) eggs are found at the surface or at the ice-water interface in winter. While winter temperatures in saline waters fall below 0°C, the temperature in areas



Changing Arctic Ocean freshwater pathways

It is confirmed that runoff is an important influence on the Arctic Ocean and established that the spatial and temporal manifestations of the runoff pathways are modulated by the Arctic Oscillation, rather than the strength of the wind-driven Beaufort Gyre circulation.

Consequences of future increased Arctic runoff on Arctic Ocean stratification, circulation, and sea ice cover

The Arctic Ocean has important freshwater sources including river runoff, low evaporation, and exchange with the Pacific Ocean. In the future, we expect even larger freshwater input as the global

Implications of climate change for freshwater inflows to the Arctic Ocean

[1] Observational evidence suggests that river inflows to the Arctic Ocean have increased over the last 30 years. Continued increases have the potential to alter the freshwater balance in the Arctic

Tracing the Imprint of River Runoff Variability on Arctic Water Mass Transformation

The Arctic Ocean receives a net freshwater input from land and from the atmosphere. This flux of freshwater, along with net surface heat loss, acts to transform the water mass properties of inflowing

Observed changes in pan-arctic cold-season minimum monthly river discharge

Recent changes in pan-arctic land-surface hydrology may significantly affect ecosystems and the built environment. While spatial and temporal patterns in land-surface hydrology trends can be

Changes in Continental Freshwater Discharge from 1948 to 2004

Abstract A new dataset of historical monthly streamflow at the farthest downstream stations for the world’s 925 largest ocean-reaching rivers has been created for community use. Available new gauge

Analysis of trends in annual streamflow to the Arctic Ocean

There is increasing interest in the magnitude of the flow of freshwater to the Arctic Ocean due to its impacts on the biogeophysical and socio‐economic systems in the north and its influence on

Land Ice Freshwater Budget of the Arctic and North Atlantic Oceans: 1. Data, Methods, and Results

The land ice freshwater flux displays a strong seasonal cycle with summer time values typically around five times larger than the annual mean, which will be important for understanding the impact of these fluxes on fjord circulation, stratification, and the biogeochemistry of, and nutrient delivery to, coastal waters.

Pan‐Arctic river discharge: Prioritizing monitoring of future climate change hot spots

The Arctic freshwater cycle is changing rapidly, which will require adequate monitoring of river flows to detect, observe, and understand changes and provide adaptation information. There has,