P2C2: Reconstructing Winter Temperatures in the Rocky Mountains Using Tree-Ring Oxygen Isotopes

该奖项支持一组研究人员，他们寻求确定场地特征和树种，以研究从科罗拉多中部和蒙大拿州落基山脉两个地点的树木年轮纤维素中的δ 18氧同位素变化中捕获冬季温度信号的分析方法。 科学目标是评估重建落基山脉地区冷季温度的潜力。 研究人员还将评估δ 18-氧同位素年表在重建影响北美温度变化的大气环流模式（如北方环形模式和太平洋北美模式）方面的有用性。更广泛的影响包括与科罗拉多和蒙大拿州的土地和水资源管理人员合作，利用过去气候和水文信息为未来规划提供信息。该项目将支持一名新的博士后学者，并根据该项目制定K-12课程计划。

This award supports a team of researchers who seek to identify site characteristics and tree species in an effort to investigate analytical methods that capture a winter temperature signal from delta18-oxygen isotopic variations in tree-ring cellulose from two sites in central Colorado and Montana Rockies. The science goal is to assess the potential for reconstructing cool-season temperatures for the Rocky Mountain region. The researchers will also evaluate the usefulness of delta18-oxygen isotope chronologies for reconstructing atmospheric circulation patterns that influence temperature variability across North America, such as the Northern Annular Mode and the Pacific North American Pattern.The broader impacts involve working with Colorado and Montana land- and water-resource managers to use information from past climate and hydrology to inform future planning. The project would support a new postdoctoral scholar with plans for K-12 lessons based on the project.