MISR Level 2 TOA/Cloud Classifier parameters subset for the UAE region V003

UAEMITCL_003 is the Multi-angle Imaging SpectroRadiometer (MISR) Level 2 TOA/Cloud Classifier parameters subset for the UAE region version 3. It contains the Angular Signature Cloud Mask (ASCM), Regional Cloud Classifiers, Cloud Shadow Mask, and Topographic Shadow Mask, with associated data.
The MISR instrument consists of nine push-broom cameras that measure radiance in four spectral bands. Global coverage is achieved in nine days. The cameras are arranged with one camera pointing toward the nadir, four forward, and four aftward. It takes seven minutes for all nine cameras to view the same surface location. The view angles relative to the surface reference ellipsoid are 0, 26.1, 45.6, 60.0, and 70.5 degrees. The spectral band shapes are nominally Gaussian, centered at 443, 555, 670, and 865 nm.

MISR is designed to view Earth with cameras in 9 different directions. As the instrument flies overhead, all nine cameras successfully imaged each piece of Earth's surface below in 4 wavelengths (blue, green, red, and near-infrared). MISR aims to improve our understanding of the effects of sunlight on Earth and distinguish different types of clouds, particles, and surfaces. Specifically, MISR monitors the monthly, seasonal, and long-term trends in three areas: 1) amount and type of atmospheric particles (aerosols), including those formed by natural sources and by human activities; 2) amounts, types, and heights of clouds, and 3) distribution of land surface cover, including vegetation canopy structure.

UAEMITCL_003 是阿联酋区域版本3的多角度成像光谱辐射计（Multi-angle Imaging SpectroRadiometer, MISR）二级大气顶层（Top of Atmosphere, TOA）/云分类参数子集。该数据集包含角特征云掩码（Angular Signature Cloud Mask, ASCM）、区域云分类器、云阴影掩码以及地形阴影掩码及其关联数据。
MISR 仪器由9台推扫式相机组成，可在4个光谱波段测量辐射亮度，每9天即可完成一次全球覆盖。该仪器的相机布局为1台天底（nadir）指向相机、4台前向相机与4台后向相机，全部9台相机完成同一地表位置的观测需耗时7分钟。相对于地表参考椭球体的观测角度分别为0°、26.1°、45.6°、60.0°与70.5°。光谱波段形状近似高斯分布，中心波长分别为443 nm、555 nm、670 nm与865 nm。
MISR 的设计目标是通过9个不同指向的相机对地观测。当该仪器飞越上空时，全部9台相机可在4个波段（蓝、绿、红与近红外）下对其下方的每一处地球表面完成成像。MISR 旨在提升我们对太阳光影响地球的认知，并区分不同类型的云、粒子与地表。具体而言，MISR 将在三个领域监测月度、季节与长期趋势：1）大气粒子（气溶胶，aerosol）的数量与类型，包括自然源与人为源产生的气溶胶；2）云的数量、类型与高度；3）陆地地表覆盖的分布，包括植被冠层结构。