Year: 2024
Type: article
Abstract: The Great Plains low-level jet (GPLLJ), characterized by its diurnally varying southerly winds in the lower troposphere, is a critical component of the hydroclimate in the central US. Here, we evaluate the representation of the GPLLJ in the Modern-Era Retrospective analysis for Research and Applications, version 2 (MERRA-2) developed by NASA’s Global Modeling and Assimilation Office (GMAO). Based on a preliminary analysis of several strong GPLLJ events, MERRA-2 is shown to be a valuable dataset for studying the horizontal, vertical, and diurnal characteristics of the LLJ. A comparison with rawinsonde and radar wind profiles suggests that the strength and height of the LLJ is overall realistic in MERRA-2.
DOI: 10.13016/m2eslg-q8rn
Authors: DeAngelis, Anthony M., Bosilovich, Michael G., Collow, Allison, Schubert, Siegfried D., Koster, Randal D., Dezfuli, Amin, Akkraoui, Amal EL, Thomas, Natalie, Lim, Young-Kwon
Language: English
Subfield: Atmospheric Science
Field: Earth and Planetary Sciences
Domain: Physical Sciences
SDG: Climate action
Open Access status: green
OpenAlex ID: W6940960739
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