YIN Bing,WU Jian-ping,ZHANG Wen-bo.Development of Rainfall Erosivity Calculator Based on GIS[J].Research of Soil and Water Conservation,2014,21(04):123-126,132.
基于GIS的降雨侵蚀力计算器实现研究
- Title:
- Development of Rainfall Erosivity Calculator Based on GIS
- 分类号:
- TV121
- 摘要:
- 降雨侵蚀力是土壤流失模型的一个基本因子，在收集和处理降雨数据时耗时耗力，且以文本格式保存的降雨数据存在诸多缺失问题。为此，将逐日、半月、累月及累年降雨侵蚀力计算模型与组件式GIS平台ArcGIS Engine及.NET平台结合，开发一种降雨侵蚀力因子计算器，并利用多种空间插值方法对数据进行不同的空间插值。结果表明：该计算器可快速、有效地的管理数据；对计算的降雨侵蚀力数据，使用插值方法可获得栅格数据，且能进一步进行单一或批量掩膜、重采样；同时也可对降雨侵蚀力因子进行统计分析、专题图制作等。为结果的可视化及保存提供应用基础。
- Abstract:
- Rainfall erosivity is one of the essential factors in soil erosion models. Collection and processing of rainfall data are usually time-consuming. These data are generally stored in text format, which causes a common issue on data missing. This study developed a rainfall erosivity calculator by integrating the daily, half-monthly, monthly and yearly rainfall erosivity calculation models with ArcGIS Engine and.NET platform. Moreover, various spatial interpolation methods were implemented in this calculator in order to generate different interpolation results based on the collected rainfall data. The results demonstrate that this developed calculator is able to manage rainfall data quickly and effectively. Different interpolation methods can be employed to generate raster data for the spatial distribution of rainfall erosivity. These raster data can be masked or resampled individually or in batch by request. Statistics and thematic mapping of the rainfall erosivity can also be conducted by using this calculator, which provides the application basis for the visualization and storage of results.
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备注/Memo
收稿日期:;改回日期:2014-04-22。
基金项目:第一次全国水利普查水土保持情况普查全国土壤侵蚀影响因子计算分析与制图第I标段水力侵蚀因子计算分析与制图
作者简介:殷兵(1989-),男,江西南昌人,硕士研究生,研究方向为地理信息系统开发与遥感应用。E-mail:bingoyin@ecnu.cn
通讯作者:吴健平(1962-),男,浙江宁波人,博士,教授,主要从事地理信息系统开发与遥感应用。E-mail:jpwu@geo.ecnu.edu.cn