The Development of Multi-platform Methods for Derivation of Tropospheric Composition from Space

Retrieval of tropospheric trace constituent concentrations from satellite instrumentation can be augmented by the use of multiple datasets. This process can involve the use of a multitude of data sets of various atmospheric parameters, covering a wide range of spatial and temporal scales, which are currently available from measurements on space-, aircraft- and ground-based platforms. Algorithms that combine data from all or some of these platforms have the potential to give enhanced products. In this work, progress towards developing multi-platform methods for the derivation of tropospheric composition is reported. The work has two themes. Firstly, algorithms for synergistic multi-satellite derivations of tropospheric concentrations have been investigated. Secondly, ground-based instrumentation has been developed and advanced in order to validate the initial multi-satellite derivations and provide new data for potential multi-platform tropospheric retrievals.