Changes to freshwater systems affecting Arctic infrastructure and natural resources

Projected changes in Arctic Ocean freshwater budgets

[1] Arctic Ocean freshwater budgets are examined from 10 models participating in the Intergovernmental Panel on Climate Change Fourth Assessment Report. This includes an analysis of sea ice transport and storage, ocean transport and storage, and net surface flux exchange. Simulated budgets for the late 20th century are compared to available observations, followed by an analysis of simulated cha...

Historical changes in arctic freshwater ecosystems.

Various types of ecosystem-based climate proxies have been used to assess past arctic change. Although lotic records are relatively poor because of the constant reworking of riverine material, high-quality lentic data have been assembled back to the end of the Pleistocene and deglaciation of the circumpolar Arctic. In general, climatic variations in the Holocene, partly due to changes in the sh...

Tourism And Natural Resources

An Infrastructure to Manage Resources

One of the more diffuse problems with information technology (IT) is that both users and their IT-supporters and IT-administrators have the feeling that IT leads to more work to be done. Since the boom of the WWW this got even worse. On one hand we have an easy way of making information available, on the other hand we have all the maintainance work with it. The problem is that much of the infor...

Strategies to Overcome Network Congestion in Infrastructure Systems

Networked Infrastructure systems deliver services and/or products from point to point along the network. Demand for the services provided by such systems is typically cyclic, creating inefficiencies in capacity utilization. Congestion pricing provides incentives to shift demand from peak time periods to lower demand periods. This effectively increases the capacity of the system without the need...