Arctic Challenge for Sustainability Project

ArCS Blog

ArCS Blog

If we use the numerical model, it has possibility that we can understand the control mechanism of phenomena of interest. The Arctic region is a complex field where the atmosphere-ocean-sea ice interactions exist. Numerical model helps us to understand what process is important. This is the one of the advantage of using the numerical model. As a matter of course, the model needs to reproduce the reality well. Also, the model has characteristics, called bias. For example, if we use a model where the ground surface temperature tends to be higher than the reality, the amount of snow will be less in simulation. Even if this simulated result corresponds well with realistic, this result is not good. Recognizing the characteristics of the model and confirming that the model successfully captures the reality is the first step in model research. However, in the Arctic region, it is difficult to obtain the local data and then these evaluations are not easy. It shows the difficulty of investigating the Arctic from the viewpoint of numerical model.

Last month, I stayed in the charming city of Tromsø in northern Norway for about two weeks to participate and give a presentation at the Eleventh Polar Law Symposium. Of course, it was also an opportunity to visit and conduct research on the Arctic Council Secretariat (ACS), which is at the heart of my research.

AMAP 32st WG meeting

Arctic Monitoring and Assessment Programme (AMAP) 32nd Working Group meeting was held between September 25-27 in Kiruna, Sweden, which was hosted by Sweden and Saami Council. Participants of this meeting were as follows; Eight Arctic States (Canada, Denmark, Finland, Iceland, Norway, Russia, Sweden, and US), three of six AC permanent participants (indigenous peoples’ organizations; ICC, AAC, and Saami Council), six of thirteen AC observer countries (France, Germany, Italy, Japan Netherlands, and Rep. Korea), and related organizations (EC, IASC, UNEP, UArctic, and WMO).

To predict future climate changes accurately, a better understanding of the climatic and environmental histories are essential. Ice retrieved in glaciers and ice sheets, called ice cores, allows us to reconstruct past climate and environmental condition through analyses of the ice, the impurities and gases preserved in it.