Abstract
AbstractNortheastern US heat waves have usually been considered in terms of a single circulation pattern, the high-pressure circulation typical of most heat waves occurring in other parts of the world. However, k-means clustering analysis from 1980–2018 shows there are four distinct patterns of Northeast heat wave daily circulation, each of which has its own seasonality, heat-producing mechanisms (associated moisture, subsidence, and temperature advection), and impact on electricity demand. Monthly analysis shows statistically-significant positive trends occur in late summer for two of the patterns and early summer for a third pattern, while the fourth pattern shows a statistically significant negative trend in early summer. These results demonstrate that heat waves in a particular geographic area can be initiated and maintained by a variety of mechanisms, resulting in heat wave types with distinct impacts and potential links to climate change, and that pattern analysis is an effective tool to distinguish these differences.
Funder
United States Department of Commerce | National Oceanic and Atmospheric Administration
National Science Foundation
Publisher
Springer Science and Business Media LLC
Subject
Atmospheric Science,Environmental Chemistry,Global and Planetary Change
Reference28 articles.
1. USGCRP. Impacts, Risks, and Adaptation in the United States: Fourth National Climate Assessment, Volume II. (eds. Reidmiller, D. R. et al.) 1515 (U.S. Global Change Research Program, 2018).
2. Bobb, J. F., Obermeyer, Z., Wang, Y. & Dominici, F. Cause-specific risk of hospital admission related to extreme heat in older adults. J. Am. Med. Assoc. 312, 2659–2667 (2014).
3. Wang, Y. et al. Heat stroke admissions during heat waves in 1,916 US counties for the period from 1999 to 2010 and their effect modifiers. Environ. Health 15, 83 (2016).
4. Allen, M. J. & Sheridan, S. C. Spatio-temporal changes in heat waves and cold spells: an analysis of 55 U.S. cities. Phys. Geogr. 37, 189–209 (2016).
5. Tan, J. et al. The urban heat island and its impact on heat waves and human health in Shanghai. Int. J. Biometeorol. 54, 75–84 (2010).
Cited by
11 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献