Dr. Richard James, Senior Scientist with Prescient Weather
Unusual climate anomalies over North America in the past two winters have stimulated renewed interest in the seasonal influence of North Pacific sea surface temperature (SST) patterns on the atmospheric circulation in the Pacific-North America region. Hartmann (2015) proposed that a "North Pacific Mode" of SST anomalies was partly responsible for the dominant ridge-trough structure over North America in winter 2013-2014. In this study we examine the historical connection between the North Pacific Mode and winter climate anomalies over Alaska, and we identify both similarities with, and important differences from, the influence of other leading SST modes that are related to ENSO and the PDO. We also illustrate and explore the non-linear nature of Alaska's winter climate response to the North Pacific Mode.
Hajo Eicken (UAF), Peter Schlosser (Columbia University)
Arctic Science Summit Week (ASSW) is the annual gathering of international organizations engaged in supporting and facilitating long-term planning in Arctic research and related measurement campaigns. ASSW provides opportunities for coordination, collaboration and cooperation in all areas of Arctic science. The Arctic Observing Summit (AOS), which is part of the larger ASSW umbrella, is a high-level, biennial summit that aims to provide community-driven, science-based guidance for the design, implementation, coordination and sustained long-term (decades) operation of an international network of Arctic observing systems. Two of the AOS 2016 Co-Chairs Hajo Eicken (UAF) and Peter Schlosser (Columbia University, ISAC Steering Committee Chair) will provide a brief overview of AOS background, objectives and specific themes and activities identified for AOS 2016.