Interactions Between Arctic Cyclones, Tropopause Polar Vortices, Clouds and Sea Ice: The RALI-THINCE Campaign
Abstract
RALI-THINICE is an international field campaign that occurred in Svalbard in August 2022. The main goals of the field campaign were to study (i) the dynamics of Arctic cyclones (ACs) and tropopause polar vortices (TPVs), (ii) their interactions with cloud microphysics, (iii) their impact on underlying sea surface and sea ice and (iv) feedbacks of sea ice on ACs and TPVs. Observations of such weather systems should improve numerical weather forecasts and climate simulations in polar regions. The project is mainly focused on the French contribution to the field campaign and the deployment of the ATR42 operated by SAFIRE, the French facility for airborne research. The instrumented aircraft was equipped with the remote sensing platform RALI composed of a doppler cloud radar, a high-resolution backscatter lidar and an infrared radiometer, together with in-situ probes. The project delivered data products to all partners (ONR, French and British colleagues). It includes (i) reflectivity, wind, doppler spectra from the radar, (iii) backscatter profiles from the lidar, (iv) phase categorisation and ice water retrievals from the RALI platform and (v) particle size distribution and water content from in-situ probes.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 2023
- Accession Number
- AD1203239
Entities
People
- Gwendal Riviere
- Julien Delanoe
Organizations
- National Center for Scientific Research