Abstract
Simulation of thermally induced valley winds in Yerevan has been performed using the Advanced Research Weather Research and Forecasting model (WRF-ARW) and verified with in situ observations in sensitivity experiments for July-August, 2014. The Mellor-Yamada-Janjic (MYJ) and the Yonsei University (YSU) planetary boundary-layer (PBL) schemes have been applied for implementation of the sensitivity study. It has been demonstrated that summertime mountain-valley winds developing around 1500 UTC have significant local impact on boundary-layer processes in Yerevan mainly during the evening and night hours strongly affecting near-surface wind conditions. Sensitivity analysis indicates that the PBL scheme variations significantly affect the model’s performance. Overall, the results of this study demonstrate that the non-local YSU scheme performs better in simulating thermally induced valley winds in Yerevan than the turbulent kinetic energy (TKE) closure MYJ scheme.
| Original language | English |
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| Title of host publication | CSIT-2017 Proceedings |
| Number of pages | 4 |
| Publication status | Published - 2017 |
| Externally published | Yes |
| Event | International Conference on Computer Science and Information Technologies, CSIT 2017 - Yerevan, Armenia Duration: 20 Sept 2017 → 25 Sept 2017 Conference number: 11th |
Conference
| Conference | International Conference on Computer Science and Information Technologies, CSIT 2017 |
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| Abbreviated title | CSIT 2017 |
| Country/Territory | Armenia |
| City | Yerevan |
| Period | 20/09/17 → 25/09/17 |