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首页> 外文期刊>Computer physics communications >Parallel software for retrieval of aerosol distribution from LIDAR data in the framework of EARLINET-ASOS
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Parallel software for retrieval of aerosol distribution from LIDAR data in the framework of EARLINET-ASOS

机译：在EARLINET-ASOS框架内从LIDAR数据检索气溶胶分布的并行软件

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摘要

We present new software for the retrieval of the volume distribution - and thus, other relevant microphysical properties such as the effective radius - of stratospheric and tropospheric aerosols from multiwavelength LIDAR data. We consider the basic equation as a linear ill-posed problem and solve the linear system derived from spline collocation. We consider as well the technical implications of the algorithm implementation. In order to reduce runtime which is incurred by the vast theoretical search space, experiments on the MareNostrum Supercomputer were made to understand the significance of the different search space dimensions on the quality of the solution with the goal of restricting or eliminating entirely certain dimensions of the search space, to massively reduce calculation time for later production runs. Results show that the search space can be reduced according to available computation power to still yield reasonable results. Also, the scalability of the parallel software proved to be good.
机译：我们提出了新的软件，用于从多波长LIDAR数据中检索平流层和对流层气溶胶的体积分布-以及其他相关的微物理特性，例如有效半径。我们将基本方程视为线性不适定问题，并求解由样条搭配产生的线性系统。我们还考虑算法实现的技术含义。为了减少庞大的理论搜索空间所导致的运行时间，我们在MareNostrum超级计算机上进行了实验，以了解不同搜索空间维度对解决方案质量的重要性，目的是限制或完全消除搜索空间的某些维度。搜索空间，以大大减少以后生产的计算时间。结果表明，可以根据可用的计算能力缩小搜索空间，以仍然产生合理的结果。而且，并行软件的可扩展性被证明是很好的。

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