...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Geoscience and Remote Sensing Letters, IEEE >Initial Validation of SMOS Vegetation Optical Thickness in Iowa
【24h】

Initial Validation of SMOS Vegetation Optical Thickness in Iowa

机译：爱荷华州SMOS植被光学厚度的初步验证

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The European Space Agency's Soil Moisture and Ocean Salinity (SMOS) satellite mission provides microwave L-band measurements of vegetation optical thickness over the Earth. Optical thickness is related to water held in vegetation. The water content of crops varies over the growing season from a minimum during planting to a maximum during reproduction and back to a minimum during senescence. We found that in Iowa in 2010 the change in SMOS optical thickness over the growing season can be related to crop yields. However, there are inconsistencies in the optical thickness data, particularly high-frequency variation and unexpected changes outside of the growing season. We hypothesize that the unexpected changes during the dormant periods are due to changes in soil surface roughness caused by land management activities and show a relationship between changes in roughness and changes in optical thickness, which may be confusing the SMOS retrieval algorithm.
机译：欧洲航天局的土壤水分和海洋盐度（SMOS）卫星任务提供了微波L波段测量地球上植被光学厚度的信息。光学厚度与植被中的水分有关。作物的水分含量在整个生长期都不同，从种植期间的最低值到繁殖期间的最高值，再到衰老期间的最低值。我们发现，在爱荷华州，2010年生长季节SMOS光学厚度的变化可能与农作物产量有关。但是，光学厚度数据不一致，特别是高频变化和生长期以外的意外变化。我们假设休眠期间的意外变化是由于土地管理活动引起的土壤表面粗糙度变化，并显示出粗糙度变化和光学厚度变化之间的关系，这可能会使SMOS检索算法感到困惑。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 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