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中国农学通报 ›› 2019, Vol. 35 ›› Issue (6): 77-82.doi: 10.11924/j.issn.1000-6850.casb18090088

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

LAPS地面资料在低纬山区的分析效果检验

杜正静1, 夏晓玲1, 熊方2, 雷坤江1   

  1. 1.贵州省气象服务中心;2.贵州省大气探测技术与保障中心
  • 收稿日期:2018-09-18 修回日期:2018-11-14 接受日期:2018-11-16 出版日期:2019-02-22 发布日期:2019-02-22
  • 通讯作者: 熊方
  • 基金资助:
    贵州省气象局业务发展重大科技专项“贵州省山洪外场试验中尺度分析场建立与评估”(黔气科合ZD[2014]05 号);贵州省科技支撑计划 “基于大数据分析的贵州省旅游景区气候资源优势研究与应用”(黔科合支撑[2017]2868)。

LAPS Ground Data in Low Latitude Mountain Area: Effect Test

  • Received:2018-09-18 Revised:2018-11-14 Accepted:2018-11-16 Online:2019-02-22 Published:2019-02-22

摘要: 为了检验LAPS系统在低纬山区的分析应用效果,对2016 年贵州LAPS分析值与气象监测要素进行对比。结果表明:气温、相对湿度、风速的相关系数逐渐降低,但均方根误差由小到大分别为风速、气温、相对湿度。分析值与监测实况间的差异与贵州的地形分布有关:气温准确率呈东高西低;风力低于1.8 m/s 时分析值偏小,高于1.8 m/s 时分析值偏大,u、v 风的准确率较低;相对湿度准确率西高东低;能见度等级准确率为77.82%,且随海拔高度增高准确率偏低。可见,在低纬山区LAPS分析的气温、风速和能见度等级偏差小,实用性较高;能见度数值和相对湿度相关性通过信度检验,可参考使用;风向在低纬山区的可用性较差。

关键词: 植物生长调节剂, 植物生长调节剂, 糖料作物, 糖分积累, 发展趋势

Abstract: The paper aims to test the application effect of LAPS system in low latitude mountain area. We compared the LAPS data in 2016 with the meteorological monitoring elements in Guizhou at the same time. The results showed that: the correlation coefficients between the LAPS values and the actual data in temperature, relative humidity and wind speed decreased gradually, but the RMS errors of wind speed, air temperature and relative humidity were in ascending order; the differences between the LAPS analysis value and the actual observed value were obviously correlated with the topography of Guizhou; the accuracy of temperature was high in the east and low in the west of Guizhou, and the LAPS analysis value was smaller when the wind was lower than 1.8 m/s, and was larger when the wind was higher than 1.8m/s, and the accuracy of u, v wind was lower; the accuracy of the relative humidity was high in the west and low in the east; the accuracy of visibility grade was 77.82%, and the higher the altitude, the lower the accuracy was. Therefore, the errors of air temperature, wind speed and visibility grade are small in low latitude mountain area with high practicability; the correlation between the visibility and relative humidity passes the reliability test, which can be used for reference; the availability of wind direction in low latitude mountain area is poor.