• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国政府科技报告 >Evaluation of Gravimetric Ground Truth Soil Moisture Data Collected for the Agricultural Soil Moisture Experiment, 1978 Colby, Kansas, Aircraft Mission
【24h】

Evaluation of Gravimetric Ground Truth Soil Moisture Data Collected for the Agricultural Soil Moisture Experiment, 1978 Colby, Kansas, Aircraft Mission

机译：农业土壤水分实验收集的重力地面真实土壤水分数据评估，1978年堪萨斯州科尔比飞机任务

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Soil moisture data acquired to support the development of algorithms for estimating surface soil moisture from remotely sensed backscattering of microwaves from ground surfaces are presented. Aspects of field uniformity and variability of gravimetric soil moisture measurements are discussed. Moisture distribution patterns are illustrated by frequency distributions and contour plots. Standard deviations and coefficients of variation relative to degree of wetness and agronomic features of the fields are examined. Influence of sampling depth on observed moisture content an variability are indicated. For the various sets of measurements, soil moisture values that appear as outliers are flagged. The distribution and legal descriptions of the test fields are included along with examinations of soil types, agronomic features, and sampling plan. Bulk density data for experimental fields are appended, should analyses involving volumetric moisture content be of interest to the users of data in this report.

著录项

相似文献

  • 外文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号