地球信息科学学报 ›› 2020, Vol. 22 ›› Issue (6): 1349-1356.doi: 10.12082/dqxxkx.2020.190231
收稿日期:
2019-05-15
修回日期:
2019-12-15
出版日期:
2020-06-25
发布日期:
2020-08-25
通讯作者:
何瑞珍
E-mail:hrzzjd@126.com
作者简介:
申鑫杰(1996— ),女,河南驻马店人,硕士生,主要从事城市微气候方面的研究。E-mail: 1395869927@qq.com
基金资助:
SHEN Xinjie, ZHAO Rui, HE Ruizhen*(), WANG Qi, GUO Yuchen
Received:
2019-05-15
Revised:
2019-12-15
Online:
2020-06-25
Published:
2020-08-25
Contact:
HE Ruizhen
E-mail:hrzzjd@126.com
Supported by:
摘要:
城市风环境是城市微气候研究的一个重要方向,对分析城市热岛效应、空气流通等具有重要意义。本文以郑州市市区为例,使用1971—2018年气象观测数据、2018年建筑分布数据(OSM)和2016年资源三号卫星数据作为数据源,通过运用气象学和GIS技术结合的方法,探究潜在通风廊道,科学量化城市形态对风环境的影响。研究首先借助WindNinja软件,对城市背景风环境进行模拟分析,该计算方法提高了风道定位的精度。然后利用卫星遥感数据制作了数字高程模型(DSM),结合OSM计算下垫面地表粗糙度。进一步借助ArcGIS软件,利用最小成本路径法(LCP)确定城市潜在通风廊道的位置。结果表明:① 郑州市近年来平均风速缓慢下降,平均每10年下降0.26 m/s;全年主导风向东北风进入城市后受城市形态影响在京广铁路线附近以西逐渐转为东北偏东风,其中在京广快速路以东风速较高,在京广快速路以西风速较低;② 金水区西部、中原区、二七区以及管城区的地表粗糙度较高,通风环境较差;金水区东部和惠济区的地表粗糙度较低,通风环境较好;③根据盛行风向模拟的潜在通风廊道,其共同特点是趋向于低粗糙度的地区。
申鑫杰, 赵芮, 何瑞珍, 王琦, 郭煜琛. 郑州市市区风环境模拟研究[J]. 地球信息科学学报, 2020, 22(6): 1349-1356.DOI:10.12082/dqxxkx.2020.190231
SHEN Xinjie, ZHAO Rui, HE Ruizhen, WANG Qi, GUO Yuchen. Research on Urban Wind Environment Simulation: A Case Study of Zhengzhou Central Area[J]. Journal of Geo-information Science, 2020, 22(6): 1349-1356.DOI:10.12082/dqxxkx.2020.190231
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