Collaborative Research: P2C2--Ice Core Paleoclimate Records from Combatant Col, British Columbia, Canada

提供资金，以获得新的冰芯积累记录战斗上校，山。沃丁顿，位于加拿大不列颠哥伦比亚省（BC）西南部。Combatant Col位于比北美西海岸沿着其他现有冰芯站点更靠南的位置，降水量的变化往往与阿拉斯加和育空地区的降水量不同。Combatant Col位于3000米处，包含超过200米的冰。年净积雪量约为2.5米/年，年平均气温为-5 ° C。从现场65米的核心显示，明确的年度分层保存在地球化学和灰尘和黑碳。基岩附近的冰的年龄估计在200年到1000年之间。预计将在该地点恢复一个年分辨率的层厚记录，以记录过去200-1000年的积雪。战斗山口记录，与其他现有的记录降水变化沿着北美西部边缘，将被用来开发一个更新和改进的重建降水变率在该地区在过去的200- 1000年来，解决有关太平洋年代际尺度变化的基本问题。更广泛的影响包括支持早期职业女性研究人员，并加强与加拿大机构研究人员的国际合作。该奖项是根据美国复苏和再投资法案资助的。2009年（公法111-5）。

Funding is provided to obtain new ice core accumulation records from Combatant Col, Mt. Waddington, in southwestern British Columbia (BC), Canada. Combatant Col is located significantly farther south than other existing ice core sites along the west coast of North America and variations in precipitation tend to be out of phase with those in Alaska and the Yukon. Combatant Col sits at 3000 meters and contains more than 200 meters of ice. The net annual snow accumulation is ~2.5 meters/year and the mean annual temperature -5°C. A 65-meter core from the site shows that clear annual layering is preserved in the geochemistry and in dust and black carbon. The age of the ice near bedrock is estimated to be between 200 years and 1000 years old. It is anticipated that an annually-resolved record of layer thickness will be recovered at the site to allow for a record of snow accumulation covering the last 200-1000 years.The Combatant Col record, in combination with other existing records of precipitation variability along the western margin of North America, will be used to develop an updated and improved reconstruction of precipitation variability in this region over the last 200-1000 years to address fundamental questions about Pacific decadal scale variability.The broader impacts involve supporting an early career female investigator and strengthening international collaborations with researchers from institutions in Canada.This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).