主办单位:中国气象局沈阳大气环境研究所
国际刊号:ISSN 1673-503X
国内刊号:CN 21-1531/P

气象与环境学报

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德州70 cm高度气温与地面温度的关系初探

李凤云   

  1. 德州市气象局,山东 德州 253078
  • 收稿日期:2010-05-10 修回日期:2010-06-08 出版日期:2010-08-29 发布日期:2010-08-29

Relationship between air temperature at 70 cm and ground temperature in Dezhou, Shandong province

LI Feng-yun   

  1. Dezhou Meteorological Bureau, Dezhou 253078, China
  • Received:2010-05-10 Revised:2010-06-08 Online:2010-08-29 Published:2010-08-29

摘要: 利用统计学和气象学原理,对德州2008年1月1日—12月31日德州70 cm高度的气温(用T70表示)与地面温度(用T0表示)中08、14时和20时及日平均资料进行分析。结果表明:冬半年08时T70>T0(或T70≈T0);夏半年T70<T0,6月差值最大,为-2.6℃。14时全年都是T70<T0,3月差值最大,为-12.1℃。20时全年基本都是T70>T0。就日平均而言,全年都是T70<T0。运用回归分析法建立了以T0为基础的T70预测模型,经检验表明,3—9月预测准确率较高,可以满足当地农事需要。

关键词: cm高度的气温, 地面温度, 模拟方程, 检验, 德州

Abstract: According to statistics and meteorology theories, air temperature at 70 cm (T70) and ground temperature (T0) from January 1 to December 31, 2008 were analyzed, including 08:00 o’clock, 14:00 o’clock, 20:00 o’clock and daily mean temperatures. The results indicate that T70 is higher than T0 at 8:00 o’clock or both are equal in winter, while it is contrary in summer. T70 is less than T0 at 14:00 o’clock in a whole year, while it is contrary at 20:00 o’clock. The largest differences at 8:00 and 14:00 reach -2.6℃ and -12.1℃, and they occur in June and March, respectively. The daily average of T70 is less than that of T0 in a whole year. A forecast model on T70 is established by regression method based on T0. The forecast on T70 is accurate from March to September, which could meet the local farming needs.

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