首页> 美国卫生研究院文献>Sensors (Basel Switzerland) >An Overview of the Triangle Method for Estimating Surface Evapotranspiration and Soil Moisture from Satellite Imagery
【2h】

An Overview of the Triangle Method for Estimating Surface Evapotranspiration and Soil Moisture from Satellite Imagery

机译:利用卫星图像估算地表蒸腾量和土壤水分的三角法概述

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

An overview of the ‘triangle’ method for estimating soil surface wetness and evapotranspiration fraction from satellite imagery is presented here. The method is insensitive to initial atmospheric and surface conditions, net radiation and atmospheric correction, yet can yield accuracies comparable to other methods. We describe the method first from the standpoint of the how the triangle is observed as obtained from aircraft and satellite image data and then show how the triangle can be created from a land surface model. By superimposing the model triangle over the observed one, pixel values from the image are determined for all points within the triangle. We further show how the stretched (or ‘universal’) triangle can be used to interpret pixel configurations within the triangle, showing how the temporal trajectories of points uniquely describe patterns of land use change. Finally, we conclude the paper with a brief assessment of the method's limitations.
机译:本文概述了通过卫星图像估算土壤表面湿度和蒸散量的“三角”方法。该方法对初始大气和地面条件,净辐射和大气校正不敏感,但可以产生与其他方法相当的精度。我们首先从如何从飞机和卫星图像数据中观察到三角形的角度描述该方法,然后说明如何从陆地表面模型创建三角形。通过将模型三角形叠加在观察到的三角形上,可以确定三角形内所有点的图像像素值。我们还将进一步说明如何使用拉伸的(或“通用的”)三角形来解释该三角形内的像素配置,并显示点的时间轨迹如何唯一地描述土地利用方式的变化。最后,我们以对该方法局限性的简要评估来结束本文。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

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