Because of the interaction between ocean wave and sea ice, reliable models for wave propagation in the ice-covered region is critical to sea ice morphology. We present calibration of a viscoelastic type wave-in-ice model with wave, wind, and ice data collected from the Beaufort and Chukchi seas in the autumn of 2015. The data were from multiple sources of in-situ and remote sensing measurements in the marginal ice zone during the ice advance season.

Sea Ice is a critical component of earth’s climate system and mediates a broad range of physical processes in the Arctic, such as ocean-atmosphere interaction. Increased warming in the Arctic has drastically changed sea ice dynamics in the region and the ice composition, thinner and more first year ice, and an increased marginal ice zone. Accurate representation of lead formation is now more important than ever for the calculation of important climatological variables, such as oceanic heat flux.

The recent IPCC special report on 1.5C warming target has envisioned a number of detrimental effects and environmental challenges that will emerge with the global warming in excess of the target. Our study reveals that majority of the Arctic population is already leaving in the climate conditions significantly warmer than 1.5C and even 3.0C above the mean XXth century regional temperature. These urban temperature anomalies, known to as the urban heat islands (UHIs), may help us to study the effects of the warmer climate in the Arctic region.

Operational oceanography products, reanalysis, NRT analysis and forecast ocean state, can provide us a variety of value-added information useful for fishery stock management, monitoring and efficient fishery operation. In this talk, applications of the operational products to the operational fisheries in the North Pacific conducted by JAMSTEC data synthesis research group will be presented.