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首页> 外文期刊>SOLA: Scientific Online Letters on the Atmosphere >Impact of a New Temperature-Dependence Correction on Historical Meisei Radiosonde Humidity Data
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Impact of a New Temperature-Dependence Correction on Historical Meisei Radiosonde Humidity Data

机译:新的温度依赖性校正对梅赛无线电探空仪历史湿度数据的影响

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References(15) Supplementary materials(1) A new temperature-dependence correction (T-D correction) for Meisei RS2-91, RS-01G, and RS-06G radiosonde relative humidity (RH) measurements has been developed recently to remove the artificial stepwise change of ∼3% RH at 0°C associated with the present (original) correction. These radiosondes have been used at most of the Japanese upper-air stations since the 1990s. The historical radiosonde humidity records at Sapporo and Tateno stations on the 925, 700, and 500 hPa pressure levels show apparent large downward trends between 1999 and 2009. This is because the original T-D correction has only been applied since February 2003 after a moist bias was discovered. The new T-D correction is found to result in a much smaller downward RH trend at Sapporo and almost no trend at Tateno.
机译:参考文献(15)补充材料(1)最近开发了一种用于Mesei RS2-91,RS-01G和RS-06G探空仪相对湿度(RH)测量的新的温度依赖性校正(TD校正),以消除人为的逐步变化相对于当前(原始)校正值,在0°C下相对湿度为〜3%。自1990年代以来,这些无线电探空仪已在大多数日本高空站使用。札幌站和立野站在925、700和500 hPa压力水平上的历史探空仪湿度记录显示,1999年至2009年之间有明显的大幅下降趋势。这是因为最初的TD校正仅在2003年2月之后才应用了湿偏发现。发现新的T-D校正导致札幌的RH下降趋势小得多,而Tateno的RH趋势几乎没有。

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