| 项目编号: | 1460795
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| 项目名称: | Collaborative Research: P2C2--Recent Northeastern United States Temperature Records in the Context of the Late Holocene |
| 作者: | Neil Pederson
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| 承担单位: | Harvard University
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| 批准年: | 2013
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| 开始日期: | 2014-08-16
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| 结束日期: | 2018-07-31
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| 资助金额: | USD147677
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| 资助来源: | US-NSF
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| 项目类别: | Standard Grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Geosciences - Atmospheric and Geospace Sciences
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| 英文关键词: | northeastern united states
; high-resolution proxy temperature datum
; decadal temperature trend
; regional temperature
; student research
; collaborative effort
; record high temperature
; late holocene temperature
; recent seasonal temperature extreme
; long-term context
; high temperature
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| 英文摘要: | Over the last century, the northeastern United States has experienced significant warming (~1.1°C), and a number of record high temperatures have been set around the region in recent years. Despite the massive impacts given the dense populations in this region, we do not fully understand the extent to which the trends reflect radiative forcing versus natural decadal-scale variability. Paleoclimate data provide opportunities to observe the climate system at decadal time scales that are not available from instrumental data alone, but there are currently no long-timescale, high-resolution proxy temperature data from this region that might help discern the relative influence of these factors in determining decadal temperature trends.
This research-- a collaborative effort between scientists from the Woods Hole Oceanographic Institution and the Lamont-Doherty Earth Observatory of Columbia University-- will develop annually-resolved reconstructions of late Holocene temperature from the northeastern United States using living and subfossil Atlantic White Cedar trees. This species is temperature-sensitive, long-lived, and well-preserved in wetland environments. The resulting reconstructions will be used to characterize variability in regional temperatures at time scales from interannual to millennial, to evaluate climate model simulations over the last millennium, and identify the signature of internal, remote, and global forcing on the climate of the northeastern United States.
The project provides long-term context for recent seasonal temperature extremes in the northeastern United States, and in particular along the coast and the very urbanized Boston-to-New York corridor, where high temperatures have important public health and ecosystem impacts. Funding supports student research at the doctoral and undergraduate level, as well as public outreach to regional citizen scientists and professionals focused on the environment. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/95951
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| Appears in Collections: | 影响、适应和脆弱性
气候减缓与适应
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| Recommended Citation: | |
Neil Pederson. Collaborative Research: P2C2--Recent Northeastern United States Temperature Records in the Context of the Late Holocene. 2013-01-01.
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