Analysis of WRF-simulated diurnal boundary layer winds in eastern China using a simple 1D mode

The low-level diurnal winds for different locations of eastern China are documented using the June 2006-11 hourly model data simulated with the Weather Research and Forecasting (WRF) mesoscale model with a 9-km horizontal resolution. A simple 1D model, including both diurnal thermal forcing and diurnally varying boundary layer friction, is found to explain important features of the WRF-simulated diurnal boundary layer winds in eastern China. For example, in northeastern China, at a similar latitude, the maximum velocity parallel to the coastline at a longitude over the ocean occurs earlier than the maximum velocity parallel to the inland chain of coastline-parallel mountains at a longitude over land. This difference can be identified with the well-known Blackadar effect over the land. Off the eastern coast of China, the diurnal winds for different latitudes over the ocean vary in both phase and amplitude, consistent with expectations based on the simple 1D model.

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Author Du, Yu
Rotunno, Richard
Zhang, Qinghong
Publisher UCAR/NCAR - Library
Publication Date 2015-02-01T00:00:00
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Topic Category geoscientificInformation
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Metadata Date 2023-08-18T18:59:50.317113
Metadata Record Identifier edu.ucar.opensky::articles:16505
Metadata Language eng; USA
Suggested Citation Du, Yu, Rotunno, Richard, Zhang, Qinghong. (2015). Analysis of WRF-simulated diurnal boundary layer winds in eastern China using a simple 1D mode. UCAR/NCAR - Library. http://n2t.net/ark:/85065/d7zg6td7. Accessed 11 February 2025.

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