气候变化领域集成服务门户(CCPortal): Trends in Physical Properties at the Southern New England Shelf Break

CCPortal

DOI	10.1029/2019JC015784
	Trends in Physical Properties at the Southern New England Shelf Break
	Harden B.E.; Gawarkiewicz G.G.; Infante M.
发表日期	2020
ISSN	21699275
卷号	125 期号:2
英文摘要	We analyze 11 years (2003–2013) of repeat temperature and salinity sections from across the New England shelf break south of Cape Cod during early summer (June–July). The mean sections resolved the shelf break front which supports the Shelf Break Jet, a vital component of the regional circulation. Individual sections showed a great deal of variability associated with meanders in the shelf break front consistent with previous studies in the region. Over the 11 year record, the shelf region (inshore of the 100 m isobath) warmed by 0.26 °C yr (Formula presented.), with the majority of this warming occurring shallower than 20 m (0.58 °C yr (Formula presented.)). The full-depth trend agrees well with previous studies of shelf warming to the north and the south of our study region. The temperature and salinity of the offshore edge of the Cold Pool Water on the shelf did not change significantly during this period. The surface warming on the shelf resulted in a decrease in near-surface density of 0.12 kg m (Formula presented.) yr (Formula presented.) and an increase in stratification between 10 and 15 m of (Formula presented.) s (Formula presented.) yr (Formula presented.). Offshore of the shelf break, the Slope Water also warmed and became more saline by 0.21 °C yr (Formula presented.) and 0.04 yr (Formula presented.) respectively, resulting in a maximal reduction in density of 0.01 kg m (Formula presented.) yr (Formula presented.). In the Shelf Break Front, there is some evidence of freshening and a reduction in density, which may have resulted from an offshore shift in the Cold Pool but the statistical significance is small. ©2020. The Authors.
英文关键词	climate; New England; Shelf Break Jet; stratification; temperature and salinity trends
语种	英语
来源期刊	Journal of Geophysical Research: Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186990
作者单位	Sea Education Association, Woods Hole, MA, United States; Woods Hole Oceanographic Institution, Woods Hole, MA, United States
推荐引用方式 GB/T 7714	Harden B.E.,Gawarkiewicz G.G.,Infante M.. Trends in Physical Properties at the Southern New England Shelf Break[J],2020,125(2).
APA	Harden B.E.,Gawarkiewicz G.G.,&Infante M..(2020).Trends in Physical Properties at the Southern New England Shelf Break.Journal of Geophysical Research: Oceans,125(2).
MLA	Harden B.E.,et al."Trends in Physical Properties at the Southern New England Shelf Break".Journal of Geophysical Research: Oceans 125.2(2020).