Show simple item record Konings, AG Katul, GG Porporato, A 2011-06-21T17:27:17Z 2010-07-01
dc.identifier.citation Geophysical Research Letters, 2010, 37 (14)
dc.identifier.issn 0094-8276
dc.description.abstract A one-dimensional representation of the atmospheric boundary layer (ABL) depth is coupled to a soil moisture bucket model to dynamically explore the relative roles of surface and free atmospheric conditions on convective precipitation occurrence and resulting soil moisture states. This occurrence is taken to depend on the crossing of the ABL height and the lifting condensation level in the presence of pure convective instability. If rainfall occurs (unrealistically) whenever these conditions are met, and free atmospheric conditions are constant, the resulting system state evolves towards a limit cycle with precipitation every day or every few days, or to a completely dry state. The free atmospheric humidity profile has a larger effect on determining the stationary soil moisture state than the temperature profile. The effect of dry air entrainment on surface energy partitioning decreases soil moisture sensitivity to free atmospheric conditions. © 2010 by the American Geophysical Union.
dc.language.iso en_US en_US
dc.relation.ispartof Geophysical Research Letters
dc.relation.isversionof 10.1029/2010GL043967
dc.title The rainfall-no rainfall transition in a coupled land-convective atmosphere system
dc.title.alternative en_US
dc.type Journal Article
dc.description.version Version of Record en_US 2010-7-27 en_US
duke.description.endpage L14401 en_US
duke.description.issue en_US
duke.description.startpage L14401 en_US
duke.description.volume 37 en_US
dc.relation.journal Geophysical Research Letters en_US
pubs.issue 14
pubs.organisational-group /Duke
pubs.organisational-group /Duke/Nicholas School of the Environment
pubs.organisational-group /Duke/Nicholas School of the Environment/Environmental Sciences and Policy
pubs.organisational-group /Duke/Pratt School of Engineering
pubs.organisational-group /Duke/Pratt School of Engineering/Civil and Environmental Engineering
pubs.publication-status Published
pubs.volume 37

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