基于ASCAT風(fēng)場(chǎng)數(shù)據(jù)的中國(guó)近海風(fēng)能資源評(píng)估

doi:10.3969/2016jms.0069

首頁 > 過刊瀏覽>2017年第37卷第6期 >816-824. DOI:10.3969/2016jms.0069

基于ASCAT風(fēng)場(chǎng)數(shù)據(jù)的中國(guó)近海風(fēng)能資源評(píng)估
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                        10.3969/2016jms.0069
                    
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基金項(xiàng)目:公益性行業(yè)（氣象）科研專項(xiàng)（GYHY201306050）；浙江省科技計(jì)劃項(xiàng)目（2013C33068）

Wind resource assessment in the offshore of China based on ASCAT wind data

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衛(wèi)星反演海面風(fēng)場(chǎng)資料能夠彌補(bǔ)海上氣象測(cè)風(fēng)資料缺乏的不足，對(duì)近海風(fēng)能資源評(píng)估具有重要意義。通過ASCAT （Advanced Scatterometer）風(fēng)速數(shù)據(jù)與美國(guó)及中國(guó)近海岸浮標(biāo)測(cè)風(fēng)資料的對(duì)比分析，結(jié)果表明，ASCAT風(fēng)速的均方根誤差為1.27 m·s^-1。比較利用近海岸浮標(biāo)逐小時(shí)風(fēng)速及與其相匹配ASCAT瞬時(shí)風(fēng)速計(jì)算的各項(xiàng)風(fēng)能參數(shù)，得出ASCAT與浮標(biāo)的平均風(fēng)速和風(fēng)功率密度的殘差分別在±0.5 m·s^-1和±50 W·m^-2以內(nèi)，該殘差占浮標(biāo)計(jì)算結(jié)果的比例分別在±8%和±12%以內(nèi)。使用ASCAT風(fēng)速資料擬合的Weibull分布函數(shù)與浮標(biāo)的結(jié)果較吻合。因此，ASCAT風(fēng)速資料也能夠?yàn)楹Ｉ巷L(fēng)能資源評(píng)估提供有用的風(fēng)能參數(shù)信息。最后使用ASCAT瞬時(shí)風(fēng)速數(shù)據(jù)分析了中國(guó)近海10 m及70 m高度處的風(fēng)能資源的空間分布特征，結(jié)果表明，臺(tái)灣海峽平均風(fēng)速和風(fēng)功率密度最大。

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Wind field data retrieved from the satellite can be a valuable supplement to on-site measurement and of great significance for offshore wind resource assessment. The daily wind speed data retrieved from ASCAT was compared with the buoy data near the coast of the United States and China. Results show that the root mean square error of wind speed was 1.27 m·s^-1 in compared with the wind speeds of NDBC buoys. Then, the ASCAT daily data and offshore buoy hourly data were used to calculate the mean wind speed, wind power density and the Weibull probability density function. The residual errors of mean wind speed and wind power density associated with ASCAT and individual buoy were respectively less than ±0.5 m·s^-1 and ±50 W·m^-2. These residual errors of ASCAT compared with buoy mean wind speed and wind power density were respectively less than ±8% and ±12%. The Weibull wind speed distribution of ASCAT data shows good agreement with the result of buoy data. Therefore, ASCAT wind data can provide useful wind parameter information for offshore wind resource assessment. The spatial distribution of wind resources in the coast of China at the height of 10 m and 70 m from 2007 to 2015 were analyzed by using ASCAT wind speeds. The result indicates that the most favorable wind conditions are along the coastal area in the Taiwan Strait.

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許遐禎,郭喬影,李正泉,黃敬峰.基于ASCAT風(fēng)場(chǎng)數(shù)據(jù)的中國(guó)近海風(fēng)能資源評(píng)估.氣象科學(xué),2017,37(6):816-824 XU Xiazhen, GUO Qiaoying, LI Zhengquan, HUANG Jingfeng. Wind resource assessment in the offshore of China based on ASCAT wind data. Journal of the Meteorological Sciences,2017,37(6):816-824

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收稿日期:2016-10-10
最后修改日期:2016-11-13
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在線發(fā)布日期: 2018-02-10
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