气候变化领域集成服务门户(CCPortal): Annual and Seasonal Surface Circulation Over the Mid-Atlantic Bight Continental Shelf Derived From a Decade of High Frequency Radar Observations

CCPortal

DOI	10.1029/2020JC016368
	Annual and Seasonal Surface Circulation Over the Mid-Atlantic Bight Continental Shelf Derived From a Decade of High Frequency Radar Observations
	Roarty H.; Glenn S.; Brodie J.; Nazzaro L.; Smith M.; Handel E.; Kohut J.; Updyke T.; Atkinson L.; Boicourt W.; Brown W.; Seim H.; Muglia M.; Wang H.; Gong D.
发表日期	2020
ISSN	21699275
卷号	125 期号:11
英文摘要	A decade (2007–2016) of hourly 6-km-resolution maps of the surface currents across the Mid-Atlantic Bight (MAB) generated by a regional-scale High Frequency Radar network are used to reveal new insights into the spatial patterns of the annual and seasonal mean surface flows. Across the 10-year time series, temporal means and interannual and intra-annual variability are used to quantify the variability of spatial surface current patterns. The 10-year annual mean surface flows are weaker and mostly cross-shelf near the coast, increasing in speed and rotating to more alongshore directions near the shelfbreak, and increasing in speed and rotating to flow off-shelf in the southern MAB. The annual mean surface current pattern is relatively stable year to year compared to the hourly variations within a year. The 10-year seasonal means exhibit similar current patterns, with winter and summer more cross-shore while spring and fall transitions are more alongshore. Fall and winter mean speeds are larger and correspond to when mean winds are stronger and cross-shore. Summer mean currents are weakest and correspond to a time when the mean wind opposes the alongshore flow. Again, intra-annual variability is much greater than interannual, with the fall season exhibiting the most interseasonal variability in the surface current patterns. The extreme fall seasons of 2009 and 2011 are related to extremes in the wind and river discharge events caused by different persistent synoptic meteorological conditions, resulting in more or less rapid fall transitions from stratified summer to well-mixed winter conditions. © 2020. The Authors.
英文关键词	High Frequency Radar; remote sensing
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/186591
作者单位	Center for Ocean Observing Leadership, Rutgers University, New Brunswick, NJ, United States; Center for Coastal Physical Oceanography, Old Dominion University, Norfolk, VA, United States; Center for Environmental Science, University of Maryland, Cambridge, MD, United States; School for Marine Science and Technology, University of Massachusetts Dartmouth, New Bedford, MA, United States; Department of Marine Sciences, University of North Carolina-Chapel Hill, Chapel Hill, NC, United States; Department of Coastal Studies, East Carolina University, Wanchese, NC, United States; Virginia Institute of Marine Science, College of William and Mary, Gloucester Point, VA, United States
推荐引用方式 GB/T 7714	Roarty H.,Glenn S.,Brodie J.,et al. Annual and Seasonal Surface Circulation Over the Mid-Atlantic Bight Continental Shelf Derived From a Decade of High Frequency Radar Observations[J],2020,125(11).
APA	Roarty H..,Glenn S..,Brodie J..,Nazzaro L..,Smith M..,...&Gong D..(2020).Annual and Seasonal Surface Circulation Over the Mid-Atlantic Bight Continental Shelf Derived From a Decade of High Frequency Radar Observations.Journal of Geophysical Research: Oceans,125(11).
MLA	Roarty H.,et al."Annual and Seasonal Surface Circulation Over the Mid-Atlantic Bight Continental Shelf Derived From a Decade of High Frequency Radar Observations".Journal of Geophysical Research: Oceans 125.11(2020).