Comparison of wind data from ERA-Interim and buoys in the Yellow and East China Seas  

作　　者：宋丽娜 刘志亮 王凡 

机构地区：[1]Key Laboratory of Ocean Circulation and Waves(KLOCAW),Institute of Oceanology,Chinese Academy of Sciences [2]University of Chinese Academy of Sciences

出　　处：《Chinese Journal of Oceanology and Limnology》2015年第1期282-288,共7页中国海洋湖沼学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China(No.41276026);the Ocean Special Project(No.XDA11020301);the National Basic Research Program of China(973 Program)(No.2009CB421205)

摘　　要：We compared data of sea surface wind from the European Centre for Medium-Range Weather Forecasts Interim Reanalysis(ERA-Interim) with that collected from eight buoys deployed in the Yellow and East China seas.The buoy data covered a period from 2010 to 2011,during which the longest time series without missing data extended for 329 days.Results show that the ERA-Interim wind data agree well with the buoy data.The regression coefficients between the ERA-Interim and observed wind speed and direction are greater than 0.7 and 0.79,respectively.However,the ERA-Interim wind data overestimate wind speed at most of the buoy stations,for which the largest bias is 1.8 m/s.Moreover,it is found from scatter plots of wind direction that about 13%of the ERA-Interim wind data can be classified as bad for wind speeds below6 m/s.Overall,the ERA-Interim data forecast both the wind speed and direction well,although they are not very representative of our observations,especially those where the wind speed is below 6 m/s.We compared data of sea surface wind from the European Centre for Medium-Range Weather Forecasts Interim Reanalysis （ERA-Interim） with that collected from eight buoys deployed in the Yellow and East China seas. The buoy data covered a period from 2010 to 2011, during which the longest time series without missing data extended for 329 days. Results show that the ERA-Interim wind data agree well with the buoy data. The regression coefficients between the ERA-Interim and observed wind speed and direction are greater than 0.7 and 0.79, respectively. However, the ERA-Interim wind data overestimate wind speed at most of the buoy stations, for which the largest bias is 1.8 m/s. Moreover, it is found from scatter plots of wind direction that about 13% of the ERA-Interim wind data can be classified as bad for wind speeds below 6 m/s. Overall, the ERA-Interim data forecast both the wind speed and direction well, although they are not very representative of our observations, especially those where the wind speed is below 6 m/s.

关 键 词：ERA-INTERIM COMPARISON WIND buoy data 

分 类 号：P714.2[天文地球—海洋科学] P715.2