Nocturnal Convection Along a Trailing-End Cold Front: Insights from Ground-Based Remote Sensing Observations

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dc.contributor.authorHoffman, Kylie
dc.contributor.authorTurner, David D.
dc.contributor.authorDemoz, Belay
dc.date.accessioned2025-08-13T20:14:42Z
dc.date.issued2025-07-30
dc.description.abstractThis study examines a convergence event at the trailing end of a cold front observed in the United States’ Southern Great Plains region on 28 September 1997, using an array of in situ and remote sensing instruments. The event exhibited a structure with elevated divergence near 3 km AGL and moisture transport over both warm and cold sectors. Data from Raman lidar (RL), Atmospheric Emitted Radiance Interferometer (AERI), and Radar Wind Profilers (RWP) were used to characterize vertical profiles of the event, revealing the presence of a narrow moist updraft, horizontal moisture advection, and cloud development ahead of the front. Convection parameters, Convective Available Potential Energy (CAPE) and Convective Inhibition (CIN), were derived from collocated AERI and RL. Regions of high CAPE were aligned with areas of high moisture, indicating that convection was more favorable at moist elevated levels than near the surface. RWP observations revealed vorticity structures consistent with existing theories. This study highlights the value of high-resolution, continuous profiling from remote sensors to resolve mesoscale processes and evaluate convection potential. The event underscores the role of elevated moisture and wind shear in modulating convection initiation along a trailing-end cold front boundary where mesoscale and synoptic forces interact.
dc.description.sponsorshipThis material is based upon work supported by the NASA Early Career Research Program, Future Investigators in NASA Earth and Science and Technology, under Award No. #80NSSC22K1454 and by the U.S. Department of Commerce, National Oceanic and Atmospheric Administration, Educational Partnership Program, under Agreement No. #NA16SEC4810006.
dc.description.urihttps://www.mdpi.com/2073-4433/16/8/926
dc.format.extent18 pages
dc.genrejournal articles
dc.identifierdoi:10.13016/m2himw-avrs
dc.identifier.citationHoffman, Kylie, David D. Turner, and Belay B. Demoz. “Nocturnal Convection Along a Trailing-End Cold Front: Insights from Ground-Based Remote Sensing Observations.” Atmosphere 16, no. 8 (2025): 8. https://doi.org/10.3390/atmos16080926.
dc.identifier.urihttps://doi.org/10.3390/atmos16080926
dc.identifier.urihttp://hdl.handle.net/11603/39809
dc.language.isoen
dc.publisherMDPI
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC GESTAR II
dc.relation.ispartofUMBC Student Collection
dc.relation.ispartofUMBC Physics Department
dc.rightsThis 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.rightsPublic Domain
dc.rights.urihttps://creativecommons.org/publicdomain/mark/1.0/
dc.subjectconvergence
dc.subjectAERI
dc.subjectconvection initiation
dc.subjectRaman lidar
dc.titleNocturnal Convection Along a Trailing-End Cold Front: Insights from Ground-Based Remote Sensing Observations
dc.typeText
dcterms.creatorhttps://orcid.org/0009-0005-7762-1870

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