P2C2: Collaborative Research: Past Ocean-Atmosphere Variability from Spatiotemporal Patterns of North Atlantic Climate During the Common Era

GSTDTAP

项目编号	1623727
	P2C2: Collaborative Research: Past Ocean-Atmosphere Variability from Spatiotemporal Patterns of North Atlantic Climate During the Common Era
	Kevin Anchukaitis
主持机构	University of Arizona
项目开始年	2015
	2015-10-20
项目结束日期	2018-06-30
资助机构	US-NSF
项目类别	Standard Grant
项目经费	93491(USD)
国家	美国
语种	英语
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.
来源学科分类	Geosciences - Atmospheric and Geospace Sciences
文献类型	项目
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/68925
专题	环境与发展全球科技态势
推荐引用方式 GB/T 7714	Kevin Anchukaitis.P2C2: Collaborative Research: Past Ocean-Atmosphere Variability from Spatiotemporal Patterns of North Atlantic Climate During the Common Era.2015.