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| Analysis of Permissible Sensor Errors forEvaporation Duct Detection System |
| Received:September 30, 2012 Revised:March 01, 2013 |
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| DOI： |
| KeyWord:evapoaration duct detection system permissible error |
| Author | Institution |
| DAI Fu-shan |
Beijing Institute of Applied Meteorology，Beijing10029，China |
| XIE Zhi-hui |
Beijing Institute of Applied Meteorology，Beijing10029，China |
| WANG Sheng-guo |
Beijing Institute of Applied Meteorology，Beijing10029，China |
| YOU Xiao-bao |
Beijing Institute of Applied Meteorology，Beijing10029，China |
| JIANG Ming-bo |
Beijing Institute of Applied Meteorology，Beijing10029，China |
| LIU Qian |
Beijing Institute of Applied Meteorology，Beijing10029，China |
| DENG Bing |
Beijing Institute of Applied Meteorology，Beijing10029，China |
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| Abstract: |
| Based on the evaporation duct model developed by the authors, numerical sensitivity experiments of evaporation duct were studied. It was found that the surface air relative humidity is the most sensitive factor influencing evaporation duct height for almost all stability conditions. The second sensitive factors are the surface air temperature, the sea surface temperature, and the surface wind speed. The contribution of surface air pressure perturbation can be neglected. In order to make the root mean square of the diagnosed height error of evaporation duct less than or greater than but near the10% of the evaporation duct height, it is required that the surface air temperature error and the sea surface temperature error are not greater than 0.2℃, respectively, the relative humidity error is not greater than1%, and the sea surface wind speed error is not greater than0.5m/s in stable condition, but the surface air temperature error and the sea surface temperature error are not greater than0.5℃, respectively, the relative humidity error is not greater than3%, and the sea surface wind speed error is not greater than0.5m/s for slow wind speed, and not greater than1.0m/s for high wind speed in unstable and neutral conditions. |
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