edu.ucar.opensky::articles:6594 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-26T15:34:11.094858 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d7d21xtv Simulations of the redistribution of formaldehyde, formic acid, and peroxides in the 10 July 1996 Stratospheric-Tropospheric Experiment: Radiation, Aerosols, and Ozone deep convection storm 2007-07-12T00:00:00Z publication https://n2t.org/ark:/85065/d7d21xtv https://doi.org/10.1029/2006JD008046 Barth, Mary author Kim, Saewung author Skamarock, William author Stuart, A. author Pickering, K. author Ott, L. author UCAR/NCAR - Library publisher By using a three-dimensional convective cloud model to simulate the 10 July 1996, Stratospheric-Tropospheric Experiment: Radiation, Aerosols, and Ozone-Deep Convection experiment storm, we investigate the fate of formaldehyde (CH&#x2082O), formic acid (HCOOH), hydrogen peroxide (H&#x2082O&#x2082), and methyl hydrogen peroxide (CH&#x2083OOH) in an isolated thunderstorm. CH&#x2082O, H&#x2082O&#x2082, and CH&#x2083OOH are important HO x radical and ozone (O&#x2083) precursors in the upper troposphere. Thus, determining their source strength to the upper troposphere is important for estimating O&#x2083 production. The model simulates O&#x2083-NO x -CH&#x2084 chemistry (no nonmethane hydrocarbon chemistry) which is affected by the cloud microphysics and production of NO x by lightning. The retention of the soluble species within ice, snow, and hail during drop freezing results in less transport of the species to the upper troposphere than when the species is degassed during drop-freezing processes. Aqueous-phase chemistry is found to be inadequate in producing sufficient quantities of HCOOH so that HCOOH could serve as a reliable indicator of cloud-processed air. The production of nitrogen oxides by lightning has little to no effect on convective outflow mixing ratios of CH&#x2082O, H&#x2082O&#x2082, and CH&#x2083OOH within 100 km of the convective cores. Thus, it is unlikely that lightning affects concentrations of HO x precursors near active convection. Scavenging of CH&#x2082O and H&#x2082O&#x2082 significantly affects their concentrations in the convective outflow, although H&#x2082O&#x2082 mixing ratios were still similar to CH&#x2083OOH indicating that both peroxides can contribute equally to O&#x2083 production downwind of convection. 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 2007 American Geophysical Union. None eng geoscientificInformation