Stratospheric Hydration Processes in Tropopause-Overshooting Convection Revealed by Tracer-Tracer Correlations From the DCOTSS Field Campaign
dc.contributor.author | Homeyer, Cameron R. | |
dc.contributor.author | Gordon, Andrea E. | |
dc.contributor.author | Smith, Jessica B. | |
dc.contributor.author | Ueyama, Rei | |
dc.contributor.author | Wilmouth, David M. | |
dc.contributor.author | Sayres, David S. | |
dc.contributor.author | Hare, Jennifer | |
dc.contributor.author | Pandey, Apoorva | |
dc.contributor.author | Hanisco, Thomas F. | |
dc.contributor.author | Dean-Day, Jonathan M. | |
dc.contributor.author | Hannun, Reem | |
dc.contributor.author | St. Clair, Jason | |
dc.date.accessioned | 2024-09-24T08:59:38Z | |
dc.date.available | 2024-09-24T08:59:38Z | |
dc.date.issued | 2024-08-20 | |
dc.description.abstract | Hydration of the stratosphere by tropopause-overshooting convection has received increasing interest due to the extreme concentrations of water vapor that can result and, ultimately, the climate warming potential such hydration provides. Previous work has recognized the importance of numerous dynamic and physical processes that control stratospheric water vapor delivery by convection. This study leverages recent comprehensive observations from the NASA Dynamics and Chemistry of the Summer Stratosphere (DCOTSS) field campaign to determine the frequency at which each process operates during real events. Specifically, a well-established analysis technique known as tracer-tracer correlation is applied to DCOTSS observations of ozone, water vapor, and potential temperature to identify the occurrence of known processes. It is found that approximately half of convectively-driven stratospheric hydration samples show no indication of significant air mass transport and mixing, emphasizing the importance of ice sublimation to stratospheric water vapor delivery. Furthermore, the temperature of the upper troposphere and lower stratosphere environment and/or overshoot appears to be a commonly active constraint, since the approximate maximum possible water vapor concentration that can be reached in an air mass is limited to the saturation mixing ratio when ice is present. Finally, little evidence of relationships between dynamic and physical processes and their spatial distribution was found, implying that stratospheric water vapor delivery by convection is likely facilitated by a complex collection of processes in each overshooting event. | |
dc.description.sponsorship | We thank the entire DCOTSS team fortheir efforts that resulted in a successfulproject and for the unprecedented datawhich made this study possible. Allauthors were supported by the NationalAeronautics and Space Administration(NASA) under Earth Venture Suborbital?3program awards for DCOTSS(80NSSC19K0347, 80NSSC19K0326). | |
dc.description.uri | https://onlinelibrary.wiley.com/doi/abs/10.1029/2024JD041340 | |
dc.format.extent | 11 pages | |
dc.genre | journal articles | |
dc.identifier | doi:10.13016/m2dzwm-23qb | |
dc.identifier.citation | Homeyer, Cameron R., Andrea E. Gordon, Jessica B. Smith, Rei Ueyama, David M. Wilmouth, David S. Sayres, Jennifer Hare, et al. “Stratospheric Hydration Processes in Tropopause-Overshooting Convection Revealed by Tracer-Tracer Correlations From the DCOTSS Field Campaign.” Journal of Geophysical Research: Atmospheres 129, no. 16 (2024): e2024JD041340. https://doi.org/10.1029/2024JD041340. | |
dc.identifier.uri | https://doi.org/10.1029/2024JD041340 | |
dc.identifier.uri | http://hdl.handle.net/11603/36349 | |
dc.language.iso | en_US | |
dc.publisher | AGU | |
dc.relation.isAvailableAt | The University of Maryland, Baltimore County (UMBC) | |
dc.relation.ispartof | UMBC Chemistry & Biochemistry Department | |
dc.relation.ispartof | UMBC GESTAR II | |
dc.relation.ispartof | UMBC Joint Center for Earth Systems Technology (JCET) | |
dc.relation.ispartof | UMBC Faculty Collection | |
dc.rights | This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law. | |
dc.rights | Public Domain | |
dc.rights.uri | https://creativecommons.org/publicdomain/mark/1.0/ | |
dc.title | Stratospheric Hydration Processes in Tropopause-Overshooting Convection Revealed by Tracer-Tracer Correlations From the DCOTSS Field Campaign | |
dc.type | Text | |
dcterms.creator | https://orcid.org/0000-0002-9807-3755 | |
dcterms.creator | https://orcid.org/0000-0002-9367-5749 |
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