| 基于小时降水资料的贵州降水精细特征分析 |
| |
| 引用本文： | 罗乃兴,周 林,李 杨,倪 雷.基于小时降水资料的贵州降水精细特征分析[J].新疆气象,2023,17(4):38-44. |
| |
| 作者姓名： | 罗乃兴 周 林 李 杨 倪 雷 |
| |
| 作者单位： | 贵阳市气象局 |
| |
| 基金项目： | 国家科技部“科技助力经济2020”重点专项气象行业项目(KJZLJJ202009) |
| |
| 摘 要： | 摘要：利用2010—2019年贵州地区2683个自动气象站逐时降水观测资料，在结合地形特征分析了贵州降水总体时空特征的基础上，从平均雨强和降水概率方面进一步研究了贵州各季日内降水的精细化特征。结果表明：（1）贵州年降水时长和年降水量空间分布有所差异，其中位于大娄山脉北侧的遵义赤水和习水地区则仅为降水时长的大值区；（2）四季降水时长分布主要受当季主要降水系统位置的影响，而平均降水强度则兼受地理条件的影响，偏向山脉的南麓；（3）在日内降水分布上，贵州四季都存在明显的夜雨现象，其中下半夜到凌晨（00—06 时）降水发生概率更大且强度更强，其中心有明显自西向东传播的特征；（4）短时强降水主要出现在春夏两季且向东传播明显，并主要在夜间到早晨。
|
| 关 键 词： | 小时降水 降水时长 短时强降水 夜雨 贵州 |
| 收稿时间： | 2021/11/29 0:00:00 |
| 修稿时间： | 2022/4/22 0:00:00 |
Characteristics of precipitation distribution in Guizhou province based on hourly rain-gauge data |
| |
| luonaixing,Zhou Lin,Li Yang,Ni Lei.Characteristics of precipitation distribution in Guizhou province based on hourly rain-gauge data[J].Bimonthly of Xinjiang Meteorology,2023,17(4):38-44. |
| |
| Authors: | luonaixing Zhou Lin Li Yang Ni Lei |
| |
| Abstract: | Abstract: Based on hourly precipitation observation data from 2683 automatic weather stations in Guizhou province from 2010 to 2019, the refined annual and seasonal precipitation characteristics of Guizhou were analyzed. The results show that: (1) There?are?significant?differences?in?the?distributions?between annual precipitation duration and precipitation amount; (2) In terms of the seasonal precipitation, the seasonal main precipitation systems have a great impact on the precipitation duration, while the seasonal main precipitation systems and the terrain conditions jointly affect the precipitation intensity. (3) In terms of intra-day hourly precipitation distribution, there is an obvious phenomenon of Night?Rain in all four?seasons, especially from late midnight to early morning. Another notable phenomenon is that the center of night?rain mainly moves eastward. (4) Based on the relationship between short-term heavy rainfall and precipitation intensity, the short-term heavy rainfall mainly occurs at night in spring and summer. |
| |
| Keywords: | hourly rainfall Guizhou province precipitation duration short-term heavy rainfall Night?Rain |
|
| 点击此处可从《新疆气象》浏览原始摘要信息 |
| 点击此处可从《新疆气象》下载免费的PDF全文 |
