| 摘要: |
| 利用铜仁市国家级自动气象站多种观测数据分析铜仁区域2016—2018年恶劣能见度及其主要影响因子。从空间分布看，铜仁区域有2个低能见度中心，西部为德江，东部是万山。恶劣能见度的主要影响因子为雾和降水现象，其中，已搬迁站受雾影响最为显著，未搬迁站（低矮地区）受降水影响最为严重。2019年江口、沿河搬迁后，雾日和小于500 m雾日增长明显，雾由搬迁前造成恶劣能见度的次要因素上升为主要因素。 |
| 关键词: 能见度仪；恶劣能见度；铜仁区域 |
| DOI： |
| 投稿时间：2019-08-13 |
| 基金项目:已进行贵州省气象科研项目登记 |
|
| Visibility Distribution Characteristics and Main Affecting Factors of Poor Weather in Tongren Area |
| XIE Renbo,DU Ke,NIE Yun,LI Lingyun |
| (Yinjiang County Meteorological Bureau, Yinjiang 555200 , China;Tongren Meteorological Bureau, Bijiang 554300 , China) |
| Abstract: |
| Various observation data of Tongren National Automatic Weather Stations was adopted to analyze the poor visibility and its main affecting factors from 2016 to 2018. There are, in terms of spatial distribution, two poor visibility centers in Tongren’s Dejiang in the west and Wanshan in the east. The main affecting factors are fog and precipitation. The relocated stations are mostly affected by fog, and the remaining ones (located in low areas) are seriously affected by precipitation. After the relocation of stations in Jiangkou and Yanhe in 2019, fog days and fog less than 500 m increased significantly. Fog, the second affecting factor before the relocation, has become the main factor of the poor visibility. |
| Key words: visibility meter； poor visibility； Tongren area |
