FNL数据集指的是 Final Reanalysis Data再分析数据集,是由美国气象环境预报中心(NCEP)和美国国家大气研究中心(NCAR)联合制作的,他们采用了当今最先进的全球资料同化系统和完善的数据库,对各种来源(地面、船舶、无线电探空、测风气球、飞机、卫星等)的观测资料进行质量控制和同化处理,获得了一套完整的再分析资料集,它...
(4)FNL本质上是operational analysis(业务分析)。它是利用Global Forecast System和Data Assimilation产生的。每六个小时, GFS会初始化,然后进行16天的预报。过一段时间后,随着更多的数据收集到,GFS再进行一次run,并同化这些数据。这次run只有9个小时,产生的数据会作为下次的(6小时之后)初始条件,并产生FNL数据。Reana...
基于ＧｒＡＤＳ的ＮＣＥＰ/ＦＮＬ再分析资料自动化 处理程序设计与实现 单㊀丹１ꎬ朱国光１ꎬ胡航菲２ (１.湘西土家族苗族自治州气象局ꎬ湖南吉首４１６０００ꎻ２.安阳市气象局ꎬ河南安阳４５５０００)㊀㊀摘㊀要:随着气象业务现代化发展ꎬ精细化天气分析需求越来越大ꎬ主要体现在更高的时空...
2 Data and Method NCEP-FNL is the final operational global analysis data from the Global Forecasting System of the National Centers for Environment Prediction, and ERA-interim is reanalysis data from the ECWMF. Both NCEP-FNL and ERA-interim are collected at 6-hr intervals with global coverage,...
ReanalysisData)具有更高的时间、空间分辨率而得 到广泛的应用。由于充分同化了尽可能全面的观测 资料,NCEP官方认为,作为长期业务模式存档分析 资料,FNL资料可能是最好的选择 [1] 。 当前FNL资料广泛地应用于气象模式的模拟 研究 [2-11] 和暴雨、降雪、电线积冰、大雾等天气学诊 ...
它是利用Global Forecast System和Data Assimilation产生的。每六个小时, GFS会初始化,然后进行16天的预报。过一段时间后,随着更多的数据收集到,GFS再进行一次run,并同化这些数据。这次run只有9个小时,产生的数据会作为下次的(6小时之后)初始条件,并产生FNL数据。Reanalysis数据是用历史上收集的所有数据,用统一的算法...
Seasonal and diurnal variations of commonly used stability indices (SIs) and environmental parameters (EPs) over East Asia were examined by using eight years (20002007) 6-hr National Centers for Environmental Prediction (NCEP) final (FNL) global reanalysis data. The quality of the FNL data was ...
reanalysis datasetThe asymmetric distribution of convective available potential energy (CAPE) in the outer core of sheared tropical cyclones (TCs) is examined using the National Centers for Environmental Prediction Final operational global analysis data. Larger (smaller) CAPE tends to appear in the down...
and winds collected in 2008 a-long the transverse route from Zhongshan Station to Dome A.Results showed that the surface temperatures of the ERA-Interim reanalysis were closer to observational data than those of the FNL analysis,with a monthly mean abso-lute deviation <1℃in Antarctic coa...
precipitable water vaporzenith tropospheric delaysGNSSERA5 reanalysisNCEP FNL analysisNCEP GFS forecastIn precipitable water vapor (PWV) retrievals from Global Navigation Satellite System (GNSS) data, the two essential parameters, namely, surface pressure () and weighted mean temperature (), are often ...