Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1088/1748-9326/aa7394 |
Impact of deforestation on subsurface temperature profiles: implications for the borehole paleoclimate record | |
MacDougall, Andrew H.1,2; Beltrami, Hugo1,2,3 | |
2017-07-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS
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ISSN | 1748-9326 |
出版年 | 2017 |
卷号 | 12期号:7 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada |
英文摘要 | Subsurface temperature profiles measured in boreholes are one of the important archives of paleoclimate data for reconstructing the climate of the past 2000 years. Subsurface temperatures are a function of past ground surface temperatures (GST), however GSTs are influenced both by changes in land-use and changes in regional climate. Thus the history of deforestation at borehole sampling locations represents a potential uncertainty in the reconstructed temperature history at the site. Here a fully coupled Earth system model is used estimate the magnitude of the subsurface temperature anomaly from deforestation events from a global perspective. The model simulations suggest that warming of the ground surface is the dominant response to deforestation, consistent with the limited field data that exist. The magnitude of the temperature anomaly varies by environment with a global average anomaly of 0.85(circle)Cwith a range of -0.48 circle C to 1.78(circle)C. The warming originates from a reduction in the efficiency of turbulent energy flux to the atmosphere overcompensating an increase in albedo. Overall our simulations suggest that deforestation has a large impact on subsurface temperatures for centuries following deforestation and thus GST reconstructions should take into account previous deforestation events. |
英文关键词 | deforestation paleoclimate energy balance earth system model |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000405480300001 |
WOS关键词 | EARTH SYSTEM MODEL ; SURFACE-TEMPERATURE ; HEAT-FLOW ; CLIMATE ; LAND ; HISTORIES ; CANADA ; SENSITIVITY |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/15003 |
专题 | 气候变化 |
作者单位 | 1.St Francis Xavier Univ, Climate & Atmospher Sci Inst, Antigonish, NS, Canada; 2.St Francis Xavier Univ, Dept Earth Sci, Antigonish, NS, Canada; 3.Univ Quebec, Ctr Etud & Simulat Climat Echelle Reg ESCER, Montreal, PQ, Canada |
推荐引用方式 GB/T 7714 | MacDougall, Andrew H.,Beltrami, Hugo. Impact of deforestation on subsurface temperature profiles: implications for the borehole paleoclimate record[J]. ENVIRONMENTAL RESEARCH LETTERS,2017,12(7). |
APA | MacDougall, Andrew H.,&Beltrami, Hugo.(2017).Impact of deforestation on subsurface temperature profiles: implications for the borehole paleoclimate record.ENVIRONMENTAL RESEARCH LETTERS,12(7). |
MLA | MacDougall, Andrew H.,et al."Impact of deforestation on subsurface temperature profiles: implications for the borehole paleoclimate record".ENVIRONMENTAL RESEARCH LETTERS 12.7(2017). |
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