Impact of surface-heterogeneity on atmosphere and land-surface interactions
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| Title: | Main Title: Impact of surface-heterogeneity on atmosphere and land-surface interactions |
| Description: | Abstract: Land-surface heterogeneity occurs on many scales, but its inclusion remains an unsolved problem in land-surface and atmospheric boundary-layer schemes for weather and climate models. We investigate the propagation of land-surface heterogeneity in a convective boundary layer using an atmosphere and land-surface coupled large-eddy model. Simulations are made for land surfaces of different heterogeneity scales and a uniform land surface. A multi-scale analysis is carried out and it is found that while domain-and-time averaged fluxes and state variables are not sensitive to land-surface heterogeneity, atmospheric patterns are. Close to the surface, atmospheric patterns are dominated by land-surface forced patterns; away from the surface, “eigen” patterns dominate and forced patterns reemerge for large averaging times. While small-scale land-surface features are more rapidly destroyed by turbulence, large-scale features can persist over hundreds of meters. |
| Citation Advice: | Liu, S., Y. Shao, A. Kunoth, and C. Simmer, 2017: Impact of surface-heterogeneity on atmosphere and land surface interactions. Environmental Modelling and Software, doi:10.1016/j.envsoft.2016.11.006, 88, 35–47. |
Responsible Party
| Creators: | Shaofeng Liu (Author), Yaping Shao (Author), Angela Kunoth (Author), Clemens Simmer (Author) |
| Publisher: | Elsevier |
| Publication Year: | 2017 |
Topic
| TR32 Topic: | Atmosphere |
| Related Subproject: | D6 |
| Subjects: | Keywords: Atmosphere–Land Interaction, Heterogeneous Surface, LES |
File Details
| Filename: | Liu_et_al.EMS.2017.pdf |
| Data Type: | Text - Article |
| File Size: | 4.1 MB |
| Date: | Created: 10.02.2017 |
| Mime Type: | application/pdf |
| Data Format: | |
| Language: | English |
| Status: | Completed |
Constraints
| Download Permission: | Only Project Members |
| General Access and Use Conditions: | According to the TR32DB data policy agreement. |
| Access Limitations: | According to the TR32DB data policy agreement. |
| Licence: | [TR32DB] Data policy agreement |
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Specific Information - Publication
| Publication Status: | Published |
| Review Status: | Peer reviewed |
| Publication Type: | Article |
| Article Type: | Journal |
| Source: | Environmental Modelling & Software |
| Volume: | 88 |
| Number of Pages: | 13 (35 - 47) |
Metadata Details
| Metadata Creator: | Shaofeng Liu |
| Metadata Created: | 10.02.2017 |
| Metadata Last Updated: | 10.02.2017 |
| Subproject: | D6 |
| Funding Phase: | 3 |
| Metadata Language: | English |
| Metadata Version: | V50 |
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| Page Visits: | 792 |
| Metadata Downloads: | 0 |
| Dataset Downloads: | 2 |
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