翻译,万分感谢!!!

来源:百度知道 编辑:UC知道 时间:2024/05/24 07:56:35
However, the influence of clouds, shadow and aerosol contamination is a problem for measurements of land surface reflectance from satellite remote sensing technology. Compositing procedures are therefore required to create most approximate land surface reflectance datasets from multi- temporal observations when the surface conditions can be considered static during the period (Holben, 1986). Various composite approaches, such as maximum bright temperature, minimum visible band, maximum vegetation index or combination of them, have been proposed. The most common two methods are the selection data with the maximum NDVI (MaxNDVI) and with the minimum shortwave band reflectance (MinBand) in the time series observations. MaxNDVI would select the least cloud and atmospheric contaminated pixels (Holben, 1986). However, the BRDF effect make it favor to select off-nadir pixels with forward-scatter view angles, which are not always cloud-free and introduce high levels of radiometric speckle (Cih

然而,对于从卫星遥感技术来测量地表的反射系数来看,云,阴影和烟雾污染的影响是(不容忽视的)一个问题。当表面条件在一段时期可以被视为静态期间( Holben , 1986年) 合成程序也因此需要建立最近似地表反射率的多个当时的观测数据,。各种合成的方法已被提出,如它们最高的光温,最低可见波段,最大植被的指数或组合。最常见的两种方法是选择一段时期的观测数据,最高的NDVI ( MaxNDVI )和最低短波波段反射( MinBand )。 MaxNDVI将选择最少的云层和大气污染的像素( Holben , 1986年) 。然而, BRDF作用使它在选择场外奈迪尔像素前瞻性散射视角方面受到青睐,那里并不总是有流云,并且引进高水平的辐射散斑( Cihlar等。 , 1994年) ,它不能在表面植被小于云的地方工作,如海岸和海水。

实在是太专业了这篇文章,翻译还是有很大缺陷