Numerical Simulation of Urban Heat Island Effect by the WRF Model with 4-km Grid Increment: An Inter-Comparison Study between the Urban Canopy Model and Slab Model
-
- KUSAKA Hiroyuki
- Center for Computational Sciences, University of Tsukuba
-
- CHEN Fei
- National Center for Atmospheric Research
-
- TEWARI Mukul
- National Center for Atmospheric Research
-
- DUDHIA Jimy
- National Center for Atmospheric Research
-
- GILL David O.
- National Center for Atmospheric Research
-
- DUDA Michael G.
- National Center for Atmospheric Research
-
- WANG Wei
- National Center for Atmospheric Research
-
- MIYA Yukako
- Graduate School of Life and Environmental Sciences, University of Tsukuba
この論文をさがす
抄録
The present study applies the WRF model involving the single-layer urban canopy model (hereafter, WRF_UCM) to urban climate simulation of the Tokyo metropolitan area for August (2004-2007) and compare results to (a) observations, and (b) the WRF model involving the slab urban model (hereafter, WRF_SLAB). In this urban area, WRF_UCM accurately captures the observed monthly mean daytime and nocturnal UHI, whereas WRF_SLAB does not show a nocturnal UHI. Moreover, the observed diurnal variations of the surface air temperature for central Tokyo and Kumagaya, a nearby inland city, are reproduced well by WRF_UCM. However, WRF_SLAB exhibits both a 1-hr phase shift and a 6.2°C excess oscillation magnitude over observations. In addition, WRF_UCM accurately reproduces the frequency distribution of surface air temperatures, showing a maximum at 27°C, whereas WRF_SLAB produce a bimodal distribution, with double peaks at 23 and 33°C. Finally, WRF_UCM does a much better job than WRF_SLAB at modeling the relative humidity.
収録刊行物
-
- 気象集誌. 第2輯
-
気象集誌. 第2輯 90B (0), 33-45, 2012
公益社団法人 日本気象学会
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1390001206503529984
-
- NII論文ID
- 130004435205
-
- NII書誌ID
- AA00702524
-
- ISSN
- 21869057
- 00261165
-
- HANDLE
- 2241/117403
-
- NDL書誌ID
- 023556400
-
- 本文言語コード
- en
-
- データソース種別
-
- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可