Multi-Instrument ice microphysics retrievals during AWARE
Poster PDF
Authors
Alessandro Battaglia — University of Leicester
Frederic Claude Tridon — University of Cologne
Stefan Kneifel — University of Cologne
Ann M. Fridlind — NASA - Goddard Institute for Space Studies
Category
ARM field campaigns – Results from recent ARM field campaigns
Description
The deployment at the McMurdo site on the southern tip of Antarctica’s Ross Ice Shelf during the Atmospheric Radiation Measurements West Antarctic Radiation Experiment (AWARE) field campaign of an unprecedented number of multi-wavelength active and passive remote sensing systemspresents a unique opportunity to evaluate and improve climate models. The final objective of this project is to make synergistic use of these observational products to evaluate and improve NASA's ModelE global climate model.
In this poster, we will present preliminary results of the first stage of this project, focused on the development of a retrieval for a seamless characterization of cloud properties from the thinnest supercooled liquid or ice layers to the thickest precipitating ice.The retrieval makes use of various scattering tables of ice crystals and snow aggregates available in the literature, and optimally integrates a-priori information and multiple observations from lidar, triple-frequency radar and microwave radiometer instruments deployed at the McMurdo AWARE site. A case study from the field campaign will be presented, with a description of the retrieval capabilities and the microphysics outputs. Furthermore, some examples of multi-frequency radar Doppler spectra will highlight their potential to identifythe primary growth process involved(vapor growth/sublimation, aggregation, riming, ice multiplication).
