Collaborative Research: P2C2--Geothermics of Climate Change

提供资金，利用地球物理钻孔的温度-深度剖面图，建立地表温度的长期时间记录，以此作为一种手段，在比仪器记录更长的时间尺度上限制气候变化。 具体来说，研究人员将：（1）继续在干旱的犹他州西北部运行移民通道观测站（EPO），监测气象数据和地面温度;（2）调查俄勒冈州卡斯卡德的地面热状况和跨气候梯度的陆-气耦合;（3）对选定的钻孔重复进行测井，以测试如何分离出与气候变化有关的瞬时气候事件;（4）调查观测到的还原温度剖面的变异性;以及（5）调查导致从多代理重建和温度-深度剖面得出的变暖估计不一致的过程。更广泛的影响涉及强大的教育指导部分和同样强大的智力部分。 从科学的角度来看，这项研究可能有助于对地表温度的温度-深度重建和气候变化的多代理记录之间进行更复杂的理解。 在教育方面，该项目将支持一名研究生，其在当代全球变化问题方面的背景将通过发展固体地球物理学和大气科学的跨学科互动的定量技能来扩大。 该项目还将涉及犹他州大学的研究生研究助理，NSF支持GK-12项目，名为WEST（水，环境，科学和教学），由PI之一（查普曼）领导。WEST学生与湖城的教师和K-12学生互动，带领实地考察，创建实验室练习，并在当地学校建立气象站。

Funding is provided to develop long-term temporal records of ground surface temperatures by using temperature-depth profiles from geophysical boreholes as a means to constrain climate variability over timescales longer than the instrumental record. Specifically, the researchers will: (1) continue operation of the Emigrant Pass Observatory (EPO) in arid northwestern Utah where meteorological data and ground temperatures are being monitored; (2) investigate the ground thermal regime and land-atmosphere coupling across a climatic gradient in the, Cascades, Oregon; (3) repeat the logging of selected boreholes to test how to isolate the transient climate events associated with climate change; (4) investigate the observed variability in reduced temperature profiles; and (5) investigate processes leading to the discrepancy of warming estimates derived from multi-proxy reconstructions and temperature-depth profiles.The broader impacts involve a strong educational mentoring portion and an equally strong intellectual portion. Scientifically, this research could help lead to a more sophisticated understanding between temperature-depth reconstructions of ground surface temperatures and multi-proxy records of climate change. Educationally, the project will support a graduate student whose background in contemporary global change issues will be broadened by developing quantitative skills cross disciplinary interactions across the solid Earth geophysics and atmospheric sciences. The project will also involve graduate research assistants in the University of Utah, NSF supported GK-12 project titled WEST (Water, the Environment, Science, and Teaching) led by one of the PIs (Chapman). WEST students interact with Salt Lake City School District teachers and K-12 pupils, lead field trips, create laboratory exercises, and establish meteorological stations at local schools.