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池养鱼类及常规饲料的热卡值测定 被引量:3
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作者 边文冀 吴乃薇 姚宏禄 《水产科技情报》 1991年第5期157-158,共2页
为了研究高产鱼池生态系统的能量转换率,我们在苏州市郊区长青乡申庄渔场对主养青鱼的池塘中各种鱼类及所投饲料进行了能量—热卡值的测定。现将结果报导如下。
关键词 池塘养鱼 饲料 热卡值 测定
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Typhoon Track Forecast with a Hybrid GSI-ETKF Data Assimilation System 被引量:5
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作者 LUO Jing-Yao CHEN Bao-De +2 位作者 LI Hong FAN Guang-Zhou WANG Xiao-Feng 《Atmospheric and Oceanic Science Letters》 CSCD 2013年第3期161-166,共6页
A hybrid grid-point statistical interpolation-ensemble transform Kalman filter (GSI-ETKF) data assimilation system for the Weather Research and Forecasting (WRF) model was developed and applied to typhoon track foreca... A hybrid grid-point statistical interpolation-ensemble transform Kalman filter (GSI-ETKF) data assimilation system for the Weather Research and Forecasting (WRF) model was developed and applied to typhoon track forecast with simulated dropsonde observations. This hybrid system showed significantly improved results with respect to tropical cyclone track forecast compared to the standard GSI system in the case of Muifa in 2011. Further analyses revealed that the flow-dependent ensemble covariance was the major contributor to the better performance of the GSI-ETKF system than the standard GSI system; the GSI-ETKF system was found to be potentially able to adjust the position of the typhoon vortex systematically and better update the environmental field. 展开更多
关键词 data assimilation HYBRID tropical cyclone flow-dependent
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