What is the fine-grained topic of the following text: Nedoluha, V. Yushkov, S. Khaykin, R. Kivi, and H. Vömel (2005), Middle Atmospheric Water Vapour Radiometer (MIAWARA): Validation and first results of the LAPBIAT Upper Tropospheric Lower Stratospheric Water Vapour Validation Project (LAUTLOS-WAWAP) campaign, Journal of Geophysical Research Atmospheres, 110(13), cited By 16, doi:10.1029/2004JD005543. Only return the topic.
Validation and first results of the LAPBIAT Upper Tropospheric Lower Stratospheric Water Vapour Validation Project (LAUTLOS-WAWAP) using Middle Atmospheric Water Vapour Radiometer (MIAWARA)