| 项目编号: | 1623727
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| 项目名称: | P2C2: Collaborative Research: Past Ocean-Atmosphere Variability from Spatiotemporal Patterns of North Atlantic Climate During the Common Era |
| 作者: | Kevin Anchukaitis
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| 承担单位: | University of Arizona
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| 批准年: | 2014
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| 开始日期: | 2015-10-20
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| 结束日期: | 2018-06-30
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| 资助金额: | USD93491
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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: | hydro-climate
; researcher
; mode
; research team
; north atlantic basin
; early research experience
; climate model
; relevant climate field
; global temperature trend
; north atlantic sector
; millennium-length climate
; multi-decadal scale climate variability
; adjacent north america
; climate datum
; north atlantic
; internal climate system variability
; north atlantic drought atlas
; climate forcing
; summer hydro-climate variability
; woods hole oceanographic institution
; north africa
; summer hydro-climate
; sea surface temperature
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| 英文摘要: | The climate of the North Atlantic profoundly impacts human populations and ecosystems in adjacent North America and Europe. It is anticipated that this project will help improve understanding of the nature and causes of decadal- and multi-decadal scale climate variability and its spatiotemporal patterns for the North Atlantic sector for modeling and predictive purposes. An enhanced understanding of internal climate system variability at this time scale is critical for decadal-scale prediction, as well as robust detection and attribution of the anthropogenic component of regional and global temperature trends.
This award will support early research experiences for students through an ongoing student internship program at Lamont Doherty Earth Observatory and co-operative and Guest student programs at Woods Hole Oceanographic Institution (WHOI).
The researchers will utilize the newest version of the Old World Drought Atlas (OWDA, representing Europe, North Africa, and the Middle East) and an updated and fully compatible version of the North Atlantic Drought Atlas (NADA) in analyses designed to identify coupled modes of summer hydro-climate variability between continents on opposite sides of the North Atlantic Basin.
This will be accomplished using multivariate tools including singular value decomposition (SVD) to identify simple time domain coupled modes. The existence of band-limited phase-coherent modes will also be investigated using the Multiple Taper Method with Singular Value Decomposition (MTM-SVD), a frequency domain technique.
The research team seeks to identify the likely causes of the identified coupled modes in the drought atlases by comparing the projection coefficients of those modes against fields of climate data covering the North Atlantic Basin and for more extensive global regions (e.g., sea-level pressure or SLP, sea surface temperature or SST). The research team will project the identified forcings back to medieval times using the extended records of summer hydro-climate provided by the OWDA and NADA to produce first-order estimates of how the identified climate forcings have varied and changed over the past millennium; and
Furthermore, the researchers will compare the millennium-length climate forcing projections of the OWDA/NADA coupled modes against relevant climate fields and their characteristic modes of variability from the suite of CMIP3/CMIP5 coupled climate model runs to determine the degree to which data and models agree. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/93104
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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: | |
Kevin Anchukaitis. P2C2: Collaborative Research: Past Ocean-Atmosphere Variability from Spatiotemporal Patterns of North Atlantic Climate During the Common Era. 2014-01-01.
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