edu.ucar.opensky::articles:22240 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-25T15:42:59.668287 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d74m97j2 https://doi.org/10.5065/D6N29V08 https Related Dataset #1 NSF/NCAR GV HIAPER Atmospheric Radiation Package (HARP) CCD Actinic Flux Spectrometers Photolysis Frequencies. Version 1.0 Use of airborne in situ VOC measurements to estimate transit time spectrum: An observation-based diagnostic of convective transport 2018-12-16T00:00:00Z publication https://n2t.org/ark:/85065/d74m97j2 https://doi.org/10.1029/2018GL080424 Luo, Z. J. author Pan, Laura L. author Atlas, E. L. author Chelpon, S. M. author Honomichl, Shawn B. author Apel, Eric C. author Hornbrook, Rebecca author Hall, Samuel R. author UCAR/NCAR - Library publisher Convective transport from the marine boundary layer to the upper troposphere (UT) is investigated using airborne in situ measurements of chemical species over the tropical western Pacific. Using 42 volatile organic compounds with photochemical lifetimes ranging from shorter than a day to multiple decades, we derive a transit time spectrum G(t) and the associated modal and mean transit times for the UT air mass over the convectively dominant tropical western Pacific region. G(t) describes relative contributions of air masses transported from the marine boundary layer to the UT via all transport paths with different transit times. We further demonstrate that the volatile organic compound-derived transit time scale is broadly comparable to that estimated from convective mass flux. The observation-based transit time spectrum not only provides insights into convective transport pathways, but also has the potential to serve as an effective diagnostic for evaluating the representation of convective transport in global models. 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 2018 American Geophysical Union. None eng geoscientificInformation