Dataset associated with "Cold pool responses to changes in soil moisture"

Drager, Aryeh Jacob; Grant, Leah D; van den Heever, Susan C

Dataset associated with "Cold pool responses to changes in soil moisture"

dc.contributor.author	Drager, Aryeh Jacob
dc.contributor.author	Grant, Leah D
dc.contributor.author	van den Heever, Susan C
dc.date.accessioned	2019-10-11T22:05:58Z
dc.date.available	2019-10-11T22:05:58Z
dc.date.issued	2019
dc.description	The dataset includes the following: 1) Release 6.2.08 of the Regional Atmospheric Modeling System (RAMS), which was used to conduct the simulations analyzed in the associated manuscript; 2) Modified RAMS source code and scripts necessary to reproduce the simulations; 3) MATLAB analysis scripts and functions for analyzing the data; and 4) A README file with additional details about the contents of the dataset and instructions for running the RAMS model and analysis scripts.	en_US
dc.description	Department of Atmospheric Science
dc.description.abstract	This study examines the role of soil moisture in modulating convective cold pool properties in an idealized modeling framework that uses a cloud-resolving model coupled to an interactive land surface model. Four high-resolution simulations of tropical continental convection are conducted in which the initial soil moisture is varied. The hundreds of cold pools forming within each simulation are identified and composited across space and time using an objective cold pool identification algorithm. Based on the results, a theory for the impacts of soil moisture on cold pools is developed. Lower soil moisture results in greater daytime heating of the surface, which produces a deeper, drier subcloud layer. As a result, latent cooling by the evaporation of precipitation is enhanced, and cold pools are stronger and deeper. Increased propagation speed, combined with wider rain shafts, results in wider cold pools. Finally, the rings of enhanced water vapor that surround each cold pool when soil is wet disappear when the soil moisture is reduced, due to the suppression of surface latent heat fluxes. Instead "puddles" of enhanced water vapor permeate the cold pools. The results are nonlinear in that the properties of the cold pools in the driest-soil simulation depart substantially from the cold pool properties in the three simulations initialized with wetter soil. The dividing line between the resulting wet-soil and dry-soil regimes appears to be the permanent wilting point, below which transpiration is subdued. These results emphasize the role of land surface-boundary layer-cloud interactions in modulating cold pool properties.	en_US
dc.description.sponsorship	National Science Foundation (United States) Graduate Research Fellowship Program under Grant No. DGE-1321845 Amend 5.	en_US
dc.description.sponsorship	Office of Naval Research (Department of Defense, United States) under Grant No. N00014-16-1-3093.	en_US
dc.format.medium	ZIP
dc.format.medium	PDF
dc.format.medium	DOCX
dc.format.medium	MATLAB
dc.format.medium	HDF5
dc.format.medium	TAR
dc.format.medium	GZIP
dc.format.medium	Fortran
dc.format.medium	TXT
dc.format.medium	HTML
dc.format.medium	SH
dc.format.medium	Source Code
dc.format.medium	ASCII Grid
dc.identifier.uri	https://hdl.handle.net/10217/198263
dc.identifier.uri	http://dx.doi.org/10.25675/10217/198263
dc.language	English
dc.language.iso	eng
dc.publisher	Colorado State University. Libraries	en_US
dc.relation.ispartof	Research Data
dc.relation.isreferencedby	Drager, A. J., Grant, L. D., & van den Heever, S. C. (2020). Cold Pool Responses to Changes in Soil Moisture. Journal of Advances in Modeling Earth Systems, https://doi.org/10.1029/2019MS001922	en_US
dc.subject	cold pools
dc.subject	soil moisture
dc.subject	atmospheric convection
dc.subject	tropical convection
dc.subject	convective processes
dc.subject	cloud processes
dc.subject	density currents
dc.subject	gravity currents
dc.subject	land-atmosphere interactions
dc.subject	boundary-layer processes
dc.subject	numerical modeling
dc.subject	RAMS model
dc.subject	cloud-resolving model
dc.subject	tracking algorithm
dc.title	Dataset associated with "Cold pool responses to changes in soil moisture"	en_US
dc.type	Dataset	en_US