气候变化领域集成服务门户(CCPortal): High Resolution WRF Simulations for the Tel-Aviv Metropolitan Area Reveal the Urban Fingerprint in the Sea-Breeze Hodograph

CCPortal

DOI	10.1029/2020JD033691
	High Resolution WRF Simulations for the Tel-Aviv Metropolitan Area Reveal the Urban Fingerprint in the Sea-Breeze Hodograph
	Avisar D.; Pelta R.; Chudnovsky A.; Rostkier-Edelstein D.
发表日期	2021
ISSN	2169897X
卷号	126 期号:5
英文摘要	We implement and verify for the first time four Weather Research and Forecasting model urban configurations, focused on the coastal metropolitan area of Tel-Aviv (MTA) using updated landuse and morphological maps. We analyze the mesoscale summertime flow and the urban canopy (UC) role in the occurrence of different hodograph dynamics observed within MTA at night. These events may be significant in air quality research. The four configurations—bulk (MM), single-layer (SLUCM), multilayer (BEP), and BEP coupled with the building energy model—reproduce the observed diurnal temperature and wind cycles, with similar 10-m wind direction bias and RMSE ((Formula presented.) 15° and ∼30°, respectively), with preference for MM and SLUCM at night. However, the SLUCM shows the lowest skill for the 10-m wind speed (WS) (bias and RMSE (Formula presented.) 1 m s−1), and the BEP shows the largest underestimation of the 2-m temperature, ∼−2.5 °C. In the SLUCM, the WS increases over an UC and with increasing building heights. These results call for a reexamination of the SLUCM WS parameterization. The simulations show that at night, a convergence line (CL) builds up with the urban heat island, downstream of the NW flow. West of the CL, the wind continues flowing from the sea, and rotates anticlockwise to form a nonelliptical sea-breeze hodograph. Removing MTA UC restores an elliptical hodograph. East of the CL, the UC supports an elliptical hodograph with a clockwise rotation through the NE sector, previously reported as dynamically unstable. We expect such wind hodograph dynamics within similar coastal metropolitan areas. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	boundary layer; mesoscale urban wind dynamics; sea breeze; wind hodograph
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185411
作者单位	Department of Applied Mathematics, Israel Institute for Biological Research, Ness-Ziona, Israel; Porter School of Environment and Earth Sciences, Department of Geography and Human Environment, AiR-O Lab, Tel-Aviv University, Tel Aviv-Yafo, Israel; Department of Environmental Physics, Israel Institute for Biological Research, Ness-Ziona, Israel; Fredy and Nadine Herrmann Institute of Earth Sciences, the Hebrew University of Jerusalem, Edmond J. Safra Campus, Jerusalem, Israel
推荐引用方式 GB/T 7714	Avisar D.,Pelta R.,Chudnovsky A.,et al. High Resolution WRF Simulations for the Tel-Aviv Metropolitan Area Reveal the Urban Fingerprint in the Sea-Breeze Hodograph[J],2021,126(5).
APA	Avisar D.,Pelta R.,Chudnovsky A.,&Rostkier-Edelstein D..(2021).High Resolution WRF Simulations for the Tel-Aviv Metropolitan Area Reveal the Urban Fingerprint in the Sea-Breeze Hodograph.Journal of Geophysical Research: Atmospheres,126(5).
MLA	Avisar D.,et al."High Resolution WRF Simulations for the Tel-Aviv Metropolitan Area Reveal the Urban Fingerprint in the Sea-Breeze Hodograph".Journal of Geophysical Research: Atmospheres 126.5(2021).