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| 一种求解区域平均值的权重面积设计及其应用 | |
| 引用本文： | 余吉仁,靳立亚,彭友兵,马艳.一种求解区域平均值的权重面积设计及其应用[J].气象,2006,32(4):52-55. |
| 作者姓名： | 余吉仁 靳立亚 彭友兵 马艳 |
| 作者单位： | 1. 兰州大学大气科学学院,730000;兰州大学中德干旱环境联合研究中心;中国人民解放军93920部队 2. 兰州大学中德干旱环境联合研究中心 3. 兰州大学大气科学学院,730000;兰州大学中德干旱环境联合研究中心 |
| 摘 要： | 针对求解物理量在一定区域内的平均值问题，设计了一种权重面积方法。并以求解西北区域年平均降水量、1月份和7月份的平均空中水汽含量为例，将该方法与算术平均法、泰森多边形法、网格插值法进行了对比试验。结果发现该方法在站点较多、但不均匀的大范围区域内计算气象场的平均分布是可行的，其优点是计算量小、受缺测站点影响较小。 |
| 关 键 词： | 加权平均 权重面积 扇形分割 泰森多边形 格点插值 |
| 收稿时间： | 2005-06-03 |
| 修稿时间： | 2005-06-032005-11-25 |
A New Weighted Dimension Scheme for Calculating Regional Average Meteorological Field and Its Application |
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| Yu Jiren,Jin Liya,Peng Youbing,Ma Yan.A New Weighted Dimension Scheme for Calculating Regional Average Meteorological Field and Its Application[J].Meteorological Monthly,2006,32(4):52-55. | |
| Authors: | Yu Jiren Jin Liya Peng Youbing Ma Yan |
| Institution: | 1. College of Atmospheric Sciences, Lartzhou University, 730000; Center for Arid Environment and Paleoclimate Research, Lanzhou University; 3. Unit 93920, PLA |
| Abstract: | A weighted area scheme is designed for calculating mean value of a regional meteorological field. The method is used to calculate the mean annual precipitation, the water vapor content of January and July over northwestern China. Compared with arithmetic method, Tyson polygon method as well as grid point interpolation method, the method is regilable to calculate the aerography field hypodispersion in macroscopy area, if there have more sites and these sites are nonuniform distribution. Its advantage is smaller computational complexity and more slight influence of the lacking observation. |
| Keywords: | weighted average weighting area sectorial subdivision Tyson polygon method grid point interpolation |
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