Hyperspectral radiance simulator: cloudy radiance modeling and beyond
Hyperspectral radiance simulator: cloudy radiance modeling and beyond
复制标题
高光谱辐射模拟器：阴天辐射建模及其他
DOI：
10.1117/12.466054
复制
发表时间：
2003
影响因子：
8
通讯作者：
P. Yang
中科院分区：
文献类型：
--
作者：
Hung;D. Tobin;Jun Yu Li;E. Olson;Kevin Baggett;Bormin Huang;J. Mecikalski;R. Knuteson;B. Osborne;D. Posselt;P. Antonelli;H. Revercomb;W. Smith;P. Yang
当前和未来的先进大气剖面探测和成像仪器正在不断发展，以实现从太空进行全球或半球高光谱分辨率测量。用于 EO-3 的 NASA/海军/NOAA 地球同步成像 FTS (GIFTS)、用于 GOES-R 的 NOAA 高光谱环境探测器 (HES) 以及 NASA Aqua 航天器上目前运行的大气红外探测器 (AIRS) 将收集红外高光谱分辨率/高光谱辐射光谱，用于大气、云、陆地和海洋表面的遥感。这些半连续红外高光谱分辨率/高光谱辐射率将在对云的吸收和发射高度敏感的红外区域提供前所未有的信息。为了探测大气剖面，如果需要在云污染条件下进行探测，则必须执行云清除或明确模拟云的辐射效应。我们将描述在快速参数化正演模型中对云衰减进行建模的方法，该模型将云视为附加吸收体。与通常的清晰正演模型光谱输入一起，云高度、有效颗粒尺寸和形状及其冰或液态水含量是所需的输入变量。基于这种高效的多云辐射传输模型，三维空间和时间相干辐射图像的模拟成为可能。我们将进一步解释如何将这些 3-D GIFTS 辐射立方体用作各种贸易研究的测试平台。
Current and future advanced atmospheric profile sounding and imaging instruments are evolving to enable global or hemispherical hyperspectral resolution measurements from space. The NASA/Navy/NOAA Geosynchronous Imaging FTS (GIFTS) for EO-3, NOAA Hyperspectral Environmental Sounder (HES) for GOES-R, and the currently operational Atmospheric Infrared Sounder (AIRS) on the NASA's Aqua Spacecraft will collect infrared high-spectral resolution/hyperspectral radiance spectra for remote sensing of the atmosphere, clouds, land, and ocean surfaces. These semi-continuous infrared high spectral- resolution/hyperspectral radiances will provide unprecedented information in the infrared region that is highly sensitive to absorption and emission of clouds. For sounding the atmospheric profiles one must perform cloud clearing or model the radiative effects of cloud explicitly if sounding is desired under cloud-contaminated conditions. We will describe the approach for modeling cloud attenuation in a fast-parameterized forward model that treats clouds as an additional absorber. Together with the usual clear forward model spectroscopic inputs, cloud altitude, effective particle size and shape and its ice or liquid water content are required input variables. Based on this efficient cloudy radiative transfer model, the simulation of the spatial and temporal coherent radiance images in three dimensions becomes possible. We will further explain how these 3-D GIFTS radiance cubes are used as test bed for a variety of trade studies.
DOI：
--
发表时间：
--
期刊：
影响因子：
--
作者：
通讯作者：
--