地表反射率

基于经验线性法的Hyperion高光谱图像地表反射率反演研究

Surface Reflectance Retrieval of Hyperion Hyperspectral Imagery Based on the Empirical Line Calibration Method

利用TERRA和AQUA共同反演气溶胶光学厚度和地表反射率特征，对其原理及方法进行了详细的讨论。

MODIS instruments aboard on Terra and Aqua are used to synchronously retrieve aerosol optical depth ( AOD ) and surface reflectance properties , and the main principles and methods to derive aerosol products from satellites are discussed in detail .

基于TM和LISS3数据的地表反射率反演比较研究

A Comparison Study on Reflectance Retrieval Based on TM and LISS 3 Data

用NOAA/AVHRR探测地表反射率和NDVI的订正及误差分析

Corrections to noaa / avhrr reflectance and NDVI and their error analysis

COST模型在完成TM/ETM卫星遥感数据大气辐射纠正的同时实现了地表反射率反演，为TM/ETM卫星遥感数据的应用研究奠定了基础。

With COST model finishing atmospheric and radiometric correction of TM / ETM , retrieve of earth reflection had been carried out . This work established the foundation of application study of the remote sensing data of TM / ETM .

从ASTER和Landsat/TM卫星数据反演日本千叶地区地表反射率和气溶胶光学厚度分布

Retrieval of the Surface Reflectivity and the Aerosol Optical Thickness over Chiba Land Area from ASTER and Landsat / TM Imagery

Kaufman的暗像元方法是目前利用MODIS卫星资料反演气溶胶光学厚度的方法之一，但在获取可见光通道地表反射率时存在局限性。

The dark target method developed by Kaufman is one of methods to retrieve the aerosol optical depth using MODIS data . But there is limitation in getting the surface reflectivity of visible channel .

利用2004年微气象观测资料，分析了海北高寒湿地长、短波辐射以及地表反射率（A）和光合有效辐射（PAR）占太阳总辐射（DR）比例（η）的变化特征。

According to the micro-climate data of Haibei alpine wetland of Qinghai in 2004 , the short wave and long wave radiation , surface reflectivity ( A ), and the ratio (η) of photosynthetic active radiation ( PAR ) to total global solar radiation ( DR ) were analysised .

雪地表反射率的反演是遥感地表反射率生产中的难点。

Retrieving snow surface reflectance is difficult in optical remote sensing .

地表反射率沙漠区和敦煌区明显高于绿洲区；

The surface albedo at Gobi and desert is higher than oasis ;

地表反射率是控制地表能量平衡的一个重要参数。

The surface reflectance is an important parameter controlling surface energy balance .

黑河实验区的地表反射率与植被指数

Surface Albedo and Vegetation Index of Heihe Experimental Area from AVHRR Data

内蒙古温带荒漠草原生长季地表反射率特征及数值模拟

Characteristics and numerical simulation of surface albedo in temperate desert steppe in Inner Mongolia

土地利用/覆被变化主要通过改变地表反射率和大气中气体含量影响气候质量；

Land use affects the climate , mainly by changing the land surface albedo and atmospheric composition .

利用云下阴影实现陆地上空气溶胶和地表反射率的同时反演&理论方法和模拟

Retrieval of Surface Reflectance and Aerosol Optical Thickness Simultaneously from Space Measurement over Land : Basic Theory and Simulation

黑河实验区若干下垫面总辐射、地表反射率与太阳高度角的关系

Relationships between global radiation , surface albedo and solar elevation angle for several underlying surfaces in the Heihe experimental area

土壤含水量和叶面积指数是影响该区地表反射率的关键因子；

Soil water content ( SWC ) and leaf area index ( LAI ) were the key factors affecting the surface albedo .

该亮度误差可以引起地表反射率解存在大的不确定性，特别是对于短波通道和强吸收的气溶胶。

The radiance error could result in a large uncertainty of surface reflectance retrievals , especially for the short wavelength channel and the strongly absorbing aerosol .

然后将地表反射率的影响作为误差项进行订正，从而得到各种地表反射率条件下的晴天地表太阳净辐射的计算方法。

The effect of the surface albedo is considered secondly as an error correction so as to obtain the net solar radiation at various surface albedos .

这表明森林通过降低地表反射率和表面温度，不仅增加地表净辐射，而且减少其用于感热和土壤热通量的消耗。

It is showed that the forest can not only increase net radiation but also decrease sensible and soil heat fluxes by decreasing surface reflectance and temperature .

反映土壤含水量和叶面积指数共同作用的地表反射率模型的模拟值与野外实测值具有较好的一致性。

A model for the surface albedo responding to SWC and LAI was developed , which showed a good performance in consistent between simulated and observed surface albedo .

这说明了新算法所采用的确定地表反射率的方法在植被覆盖好的地区是可行的，在高反射地区效果不好。

It could be concluded that the method of the surface reflectance determination used in the new algorithm is feasible for dark dense vegetation , but is not suitable for the bright surface .

但是当这些灰烬消失后，一切顺利进行。首先，盖满大雪的地表反射率很高，袒露在太阳之下，太阳光线就被反射回了太空。

But after the ashes clear , it 's smooth sailing.First , a snowy and highly reflective surface is revealed to the Sun , and solar rays are reflected back into the cosmos .

结果表明，卫星遥感结合地面观测，首先可以得到较为精确的地表反射率和地表温度分布，进而得到较为合理的地表净辐射的区域分布和季节变化特征。

The results show that the reasonable regional distribution and seasonal variation of surface albedo , surface temperature and net radiation can be obtained with the aid of remote sensing and the field observation .

计算所需要的输入变量有：大气可降水量，二氧化碳含量，臭氧总量，云量，云的光学厚度，太阳天顶角，地表反射率。

The required input to the parameterization includes precipitable water , concentration of carbon dioxide amount , ozone amount , cloud amount , cloud visible optical depth , solar zenith angle and surface albedo .

目前国际上常用的气溶胶反演算法需要假定气溶胶类型或利用其他统计关系事先估计出地表反射率模型等参数，因此，对反演结果的精度存在极大影响。

Until now , the popular aerosol retrieval algorithms usually have to assume the some parameters such as aerosol types and need the prior of surface reflectance estimated by the statistical correlation formulas , which result into lower retrieval accuracy .

本文利用NOAA10/11AVHRR资料得到了黑河实验区1,4,8,10月地表反射率与植被指数的分布图，并讨论了不同下垫面地表反射率与植被指数的季节变化特征。

Surface albedo and vegetation index over Heihe experimental area in January , April , August and October are derived from NOAA 10 / 11 AVHRR data . Seasonal variations in surface albedo and vegetation index are discussed over the different underlying surfaces .

本文在系统地介绍了国内外光学成像仿真技术发展概况的基础上，分别对地表反射率生成、大气辐射传输、光学传感器原理进行了分析，提出基于叶面积指数等地表参数的航天遥感图像仿真流程。

The development of optical imaging Simulation is introduced , and space remote sensing image simulation process based on the leaf area index and other surface parameters is studied in the paper , which anglicizing the surface reflectivity , atmospheric radiation transfer and optical sensor theory .

并将地表反射率、地表温度的反演值与观测值进行对比，结果表明：地表温度反演结果的相对误差在9%以内，地表反射率反演结果的相对误差在8%以内。

Then we compared the retrievals of land surface reflectance and temperature with the observed . The results show the relative error of the surface temperature in Jinta area is less than 10 % , and the relative error of the surface reflectance is less than 8 % .

首先介绍了大气辐射传输模型；然后找出影响大气气溶胶反演的各个因素后逐一模拟分析，这些因子包括表观反射率、地表反射率、几何位置的变化、大气水汽含量和气溶胶模式等。

At first , an short introduction to the atmospheric radiation transferring model is given , then the factors impacting the aerosol optical depth inversion have been analyzed one by one , which include apparent reflectance , surface reflectance , geometry condition , atmospheric water vapor content and aerosol modes .