Daily IASI/Metop-A ULB-LATMOS DUST L2 products (at 10 micron, 11 micron and 550 nm)

The IASI/Metop-A ULB-LATMOS dust optical depth L2 product dataset includes the results of a flexible and robust dust retrieval algorithm from measurements of the Infrared Atmospheric Sounding Interferometer (IASI). The method is based on the calculation of a hyperspectral range index (HRI) and subsequent conversion to optical depth at 10 micron via a neural network. This conversion takes into account a large number of dependencies, including the viewing angle, temperature and humidity profile, dust altitude. The latter is based on a CALIPSO-derived climatology. Full details of the product, and validation/intercomparison can be found in [Clarisse et al. (2019)](https://doi.org/10.1029/2018JD029701). The product was originally developed within ESA’s aerosol CCI project, and new data is processed through Copernicus Climate Change Service (C3S).

Current Version: V3.1.0, available since 2022-02-21

IASI/Metop-A ULB-LATMOS尘埃光学厚度L2级产品数据集，涵盖基于红外大气探测干涉仪（Infrared Atmospheric Sounding Interferometer，IASI）观测数据所开发的灵活鲁棒尘埃反演算法的结果。该方法首先计算高光谱范围指数（hyperspectral range index，HRI），随后通过神经网络将其转换为10微米波段处的光学厚度。此转换过程需考量多种影响因子，包括观测角、温湿度廓线及尘埃高度；其中尘埃高度的参数依据CALIPSO反演得到的气候态数据确定。该产品的完整细节、验证及比对结果可参见[Clarisse等人（2019）](https://doi.org/10.1029/2018JD029701)。本产品最初由欧洲空间局（European Space Agency，ESA）的气溶胶CCI项目研发，后续新增数据均通过哥白尼气候变化服务（Copernicus Climate Change Service，C3S）完成处理。
当前版本：V3.1.0，自2022年2月21日起正式可用。