干旱气象 ›› 2025, Vol. 43 ›› Issue (2): 321-328.

• 技术报告 • 上一篇    

基于PRISM的贺兰山东麓银川段晚霜冻期间日最低气温空间插值研究

魏建宁1,2 ,姜琳琳1,3 ,郭晓雷1,2 ,张 磊1,3 ,李 浩1,2
  

  1. 1. 中国气象局旱区特色农业气象灾害监测预警与风险管理重点实验室,宁夏 银川 750002;2. 宁夏回族自治区
    银川市气象局,宁夏 银川 750002;3. 宁夏气象科学研究所,宁夏 银川 750002
  • 出版日期:2025-04-30 发布日期:2025-05-13

Spatial interpolation of daily minimum temperature during late frost period at the eastern foot of Helan Mountain in Yinchuan section based on PRISM

WEI Jianning1,2 , JIANG Linlin1,3 , GUO Xiaolei1,2 , ZHANG Lei1,3 , LI Hao1,2   

  1. 1. Key Laboratory for Meteorological Disaster Monitoring and Early Warning and Risk;Management of
    Characteristic Agriculture in Arid Regions, CMA, Yinchuan 750002, China;
    2. Yinchuan Meteorological Bureau of Ningxia Hui Autonomous Region,Yinchuan 750002,China;
    3. Ningxia Meteorological Science Institute, Yinchuan 750002, China
  • Online:2025-04-30 Published:2025-05-13

摘要:

贺兰山东麓春季气温起伏大,酿酒葡萄易遭受晚霜冻影响,农业气象服务工作中越来越迫切需 要 针 对 酿 酒 葡 萄 种 植 区 域 复 杂 地 形 进 行 日 最 低 气 温 的 精 确 插 值,坡 面 回 归 方 程 插 值 模 型(Parameter-elevation Regression on Independent Slopes Model,PRISM)一定程度上满足了这种需求。基于2022—2023年银川市269个气象站的日最低气温和高程数据,利用PRISM对贺兰山东麓银川段酿酒葡萄晚霜冻期间的日最低气温进行插值;为验证 PRISM 插值的适用性,选取银川市酿酒葡萄种植区、贺兰山东麓银川段沿山附近区域、银川平缓区域的气象站作为验证站,使用反距离加权法(Inverse Distance Weighted,IDW)、样条函数法(Spline)、普通克里金法(Ordinary Kriging,OK)3种常用的插值方法作为对比。结果表明:酿酒葡萄种植区插值效果PRISM最好,然后依次是IDW、Spline,OK最差;贺兰山东麓沿山区域插值效果PRISM最好,接着依次是IDW、OK、Spline;平缓地区PRISM的插值效果较差;综合3个区域的插值效果PRISM最好,接着是IDW、OK、Spline。PRISM在贺兰山东麓银川段晚霜冻期间日最低气温插值的适用性最好。

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Abstract:

The temperature at the eastern foot of Helan Mountain changes greatly in spring, and wine grapes are susceptible to late
frost. It is increasingly urgent for agrometeorological service to carry out accurate daily minimum temperature interpolation according to the complex terrain of wine grape planting area. The Parameter-elevation Regression on Independent Slopes Model (PRISM) satisfies this need to some extent. Based on the elevation data and daily minimum temperature of 269 weather stations in Yinchuan from 2022 to 2023, the PRISM was used to interpolate the daily minimum temperature during the late frost period at the eastern foot of Helan Moun⁃tain in Yinchuan section. In order to verify the applicability of PRISM interpolation, weather stations in Yinchuan wine grape growing area, Yinchuan section near the eastern foot of Helan Mountain, and Yinchuan flat region were selected as verification stations, and three commonly used interpolation methods including Inverse Distance Weighted (IDW), Spline Function (Spline), and Ordinary Kriging (OK) were used for comparison. The results show that the interpolation effect of PRISM is the best, followed by IDW, Spline, and the effect of OK is the worst in wine grape growing area. The interpolation effect of PRISM at the eastern foot of Helan Mountain is the best, followed by IDW, OK and Spline. The interpolation effect of PRISM in flat region is poor. For the three areas, the interpolation effect of PRISM is the best, followed by IDW, OK and Spline. PRISM has the best applicability for daily minimum temperature interpolation during late frost period at the eastern foot of Helan Mountain in Yinchuan section.

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