Transition of the Hurricane Boundary Layer during the Landfall of Hurricane Irene (2011)

Author:

Alford A. Addison1,Zhang Jun A.2,Biggerstaff Michael I.3,Dodge Peter4,Marks Frank D.4,Bodine David J.5

Affiliation:

1. School of Meteorology, University of Oklahoma, Norman, Oklahoma

2. NOAA/Atlantic Oceanographic and Meteorological Labs/Hurricane Research Division, and Cooperative Institute for Marine and Atmospheric Studies, University of Miami, Miami, Florida

3. School of Meteorology, and Advanced Radar Research Center, and Cooperative Institute for Mesoscale Meteorological Studies, University of Oklahoma, Norman, Oklahoma

4. NOAA/Atlantic Oceanographic and Meteorological Labs/Hurricane Research Division, Miami, Florida

5. Advanced Radar Research Center, University of Oklahoma, Norman, Oklahoma

Abstract

AbstractThe hurricane boundary layer (HBL) has been observed in great detail through aircraft investigations of tropical cyclones over the open ocean, but the coastal transition of the HBL has been less frequently observed. During the landfall of Hurricane Irene (2011), research and operational aircraft over water sampled the open-ocean HBL simultaneously with ground-based research and operational Doppler radars onshore. The location of the radars afforded 13 h of dual-Doppler analysis over the coastal region. Thus, the HBL from the coastal waterways, through the coastal transition, and onshore was observed in great detail for the first time. Three regimes of HBL structure were found. The outer bands were characterized by temporal perturbations of the HBL structure with attendant low-level wind maxima in the vicinity of rainbands. The inner core, in contrast, did not produce such perturbations, but did see a reduction of the height of the maximum wind and a more jet-like HBL wind profile. In the eyewall, a tangential wind maximum was observed within the HBL over water as in past studies and above the HBL onshore. However, the transition of the tangential wind maximum through the coastal transition showed that the maximum continued to reside in the HBL through 5 km inland, which has not been observed previously. It is shown that the adjustment of the HBL to the coastal surface roughness discontinuity does not immediately mix out the residual high-momentum jet aloft. Thus, communities closest to the coast are likely to experience the strongest winds onshore prior to the complete adjustment of the HBL.

Funder

National Science Foundation

National Institute of Standards and Technology

National Aeronautics and Space Administration

National Oceanic and Atmospheric Administration

Publisher

American Meteorological Society

Subject

Atmospheric Science

Reference58 articles.

1. Impact on hurricane track and intensity forecasts of GPS dropwindsonde observations from the first-season flights of the NOAA Gulfstream-IV jet aircraft;Aberson;Bull. Amer. Meteor. Soc.,1999

2. Thirty years of tropical cyclone research with the NOAA P-3 aircraft;Aberson;Bull. Amer. Meteor. Soc.,2006

3. Near-surface maximum winds during the landfall of Hurricane Harvey;Alford;Geophys. Res. Lett.,2019

4. Avila, L. A., and J.Cangialosi, 2012: Tropical cyclone report: Hurricane Irene (AL092011), 21–28 August 2011. NHC Tech. Rep., 45 pp., http://www.nhc.noaa.gov/data/tcr/AL092011_Irene.pdf.

5. Mesoscale and convective structure of a hurricane rainband;Barnes;J. Atmos. Sci.,1983

Cited by 28 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

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3