OPTICAL THICKNESS DATA: FRASER (FIFE)

The Solar Transmissometer Aerosol Optical Thickness Data Set contains optical thickness data that provide a measure of the effect of aerosols on the attenuation of radiation through the atmosphere at 8 discrete wavelength bands throughout the visible and near IR portion of the electromagnetic spectrum. These data were collected using a ground-based solar transmissometer in June and July of 1987, and July and August of 1989, at two stations in the FIFE study area. These data are used to provide atmospheric correction of remotely sensed data using radiative transfer models and to study aerosol particle size distribution (see Halthore and Markham 1992; King et al. 1978). These data are also used to infer the optical clarity of the atmosphere.

太阳透射仪气溶胶光学厚度数据集（Solar Transmissometer Aerosol Optical Thickness Data Set）包含光学厚度数据，该数据可量化表征气溶胶对电磁波谱可见光及近红外波段内8个离散波长通道的大气辐射衰减效应。该数据集于1987年6月、7月以及1989年7月、8月期间，通过地基太阳透射仪在FIFE研究区域的两个观测站点采集得到。此类数据可借助辐射传输模型实现遥感数据的大气校正，亦可用于气溶胶粒径分布的相关研究（详见Halthore与Markham 1992年、King等人1978年的研究）。此外，该数据集还可用于反演大气光学通透度。