TR32-Database: Database of Transregio 32

[1161] - Isolating effects of terrain and soil moisture heterogeneity on the atmospheric boundary layer: Idealized simulations to diagnose land-atmosphere feedbacks

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Citation
Rihani, J., Chow, F. K., Maxwell, R. M., 2015. Isolating effects of terrain and soil moisture heterogeneity on the atmospheric boundary layer: Idealized simulations to diagnose land-atmosphere feedbacks. Journal of Advances in Modeling Earth Systems, 1 - 23. DOI: 10.1002/2014MS000371.
Identification
Title(s):Main Title: Isolating effects of terrain and soil moisture heterogeneity on the atmospheric boundary layer: Idealized simulations to diagnose land-atmosphere feedbacks
Description(s):Abstract: The effects of terrain, soil moisture heterogeneity, subsurface properties, and water table dynamics on the development and behavior of the atmospheric boundary layer are studied through a set of idealized numerical experiments. The mesoscale atmospheric model Advanced Regional Prediction System (ARPS) is used to isolate the effects of subsurface heterogeneity, terrain, and soil moisture initialization. The simulations are initialized with detailed soil moisture distributions obtained from offline spin-ups using a coupled surface-subsurface model (ParFlow-CLM). In these idealized simulations, we observe that terrain effects dominate the planetary boundary layer (PBL) development during early morning hours, while the soil moisture signature overcomes that of terrain during the afternoon. Water table and subsurface properties produce a similar effect as that of soil moisture as their signatures (reflected in soil moisture profiles, energy fluxes, and evaporation at the land surface) can also overcome that of terrain during afternoon hours. This is mostly clear for land surface energy fluxes and evaporation at the land surface. We also observe the coupling between water table depth and planetary boundary layer depth in our cases is strongest within wet-to-dry transition zones. This extends the findings of previous studies which demonstrate the subsurface connection to surface energy fluxes is strongest in such transition zones. We investigate how this connection extends into the atmosphere and can affect the structure and development of the convective boundary layer.
Identifier(s):DOI: 10.1002/2014MS000371
Citation Advice:Rihani, J., Chow, F.K., and Maxwell, R.M. Isolating Effects of Terrain and Soil Moisture Heterogeneity on the Atmospheric Boundary Layer: Idealized simulations to diagnose land-atmosphere feedbacks. Journal of Advances in Modeling Earth Systems doi:10.1002/2014MS000371, 2015.
Responsible Party
Creator(s):Author: Jehan Rihani
Author: Fotini K. Chow
Author: Reed M. Maxwell
Contributor(s):Supervisor: Fotini K. Chow
Supervisor: Reed M. Maxwell
Publisher:Wiley
Topic
TR32 Topic:Atmosphere
Related Sub-project(s):C4
Subject(s):CRC/TR32 Keywords: Atmosphere–Land Interaction, Soil Moisture, Boundary Layer
Topic Category:ClimatologyMeteorologyAtmosphere
File Details
File Name:Rihani_etal_JAMES_2015.pdf
Data Type:Text
File Size:2579 kB (2.519 MB)
Date(s):Date Accepted: 2015-05-11
Mime Type:application/pdf
Data Format:PDF
Language:English
Status:Completed
Constraints
Download Permission:Free
General Access and Use Conditions:According to the TR32DB data policy agreement.
Access Limitations:According to the TR32DB data policy agreement.
Geographic
North:-no map data
East:-
South:-
West:-
Measurement Region:C4ModellingArea
Measurement Location:--C4ModellingArea--
Specific Informations - Publication
Status:Accepted
Review:PeerReview
Year:2015
Type:Article
Source:Journal of Advances in Modeling Earth Systems
Number Of Pages:23
Page Range:1 - 23
Metadata Details
Metadata Creator:Jehan Rihani
Metadata Created:2015-07-07
Metadata Last Updated:2015-07-07
Subproject:C4
Funding Phase:2
Metadata Language:English
Metadata Version:V41
Dataset Metrics
Page Visits:138
Metadata Downloads:0
Dataset Downloads:1
Dataset Activity
Features