NASA/FAA High Ice Water Content and Aerosols Flight Campaign (HIWC–2022) Final Report

This report documents the purpose, formulation, and results of the NASA/Federal Aviation Administration (FAA) High Ice Water Content and Aerosols Flight Campaign (HIWC–2022).

The primary purpose of this flight campaign was to collect new atmospheric data in deep convective storms in regions of high concentrations of anthropogenic aerosols to address a potential gap in the in situ cloud dataset that was collected through three flight campaigns in 2014 and 2015. The first flight campaign was conducted out of Darwin, Australia, using the Service des Avions Français Instrumentés pour la Recherche en Environnement (SAFIRE) Falcon–20 research aircraft. The second flight campaign was conducted from Cayenne, French Guiana, with the SAFIRE Falcon–20 and the National Research Council of Canada (NRC) Convair–580. The third flight campaign, called HIWC RADAR I, was conducted from Fort Lauderdale, Florida, with the NASA DC–8 research aircraft. The dataset from these three campaigns (hereinafter “original dataset”) was analyzed and documented in FAA report DOT/FAA/TC–18/1 to enable an assessment of the United States Title 14 Code of Federal Regulations (CFR) Part 33, Appendix D, and the corresponding identical European Union Aviation Safety Agency Certification Specification 25 (CS–25) Appendix P envelope. Both appendixes became effective in 2015.