edu.ucar.opensky::articles:18253 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-26T03:09:38.377356 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d7st7rf4 Ground delays from lightning ramp closures and decision uncertainties 2015-04-15T00:00:00Z publication https://n2t.org/ark:/85065/d7st7rf4 https://doi.org/10.2514/atcq.22.3.223 Steiner, Matthias author Deierling, Wiebke author Ikeda, Kyoko author Bass, R. author UCAR/NCAR - Library publisher Analyses are presented that provide a first quantitative look at the impacts of lightning-related ramp closures on departing and arriving air traffic. Ramp closures are a necessity to ensure the safety of outdoor personnel servicing gate-side aircraft. Halting outdoor work delays air traffic and may cause ripple effects beyond the impacted airport. Today's ramp closure decision-making process is burdened with uncertainty related to the procedures and their implementation, and the lightning data used to trigger ramp closures. This uncertainty needs to be accounted for, as it has implications for ensuring personnel safety and minimizing avoidable operational inefficiencies. Our initial results highlight that lightning ramp closures can exert substantial impacts on air traffic. Moreover, the choice of safety procedure and varied sources of lightning information yield large uncertainty that renders operators unsure whether their approach is safe and effective. Additional research will help refining the assessment of lightning ramp closure impacts and providing a perspective with other convective storm impacts. A better diagnosis of the lightning threats and prediction of such threats into the near future will enable more consistent and proactive decisions. UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact PDF Text theme Resource Type 2016-01-01T00:00:00Z publication Copyright 2015 Air Traffic Control Association. None eng geoscientificInformation