利用松花江流域67个代表性气象站1960~2009年气象观测资料,采用标准化降水指数(SPI)为评价指标,计算松花江流域50 a中各季干旱指数,在此基础上分析了流域季节性气象干旱演变特征及规律,研究发现,松花江流域气象干旱呈现出明显的空间分带性和季节分带性。从地域变化来看,流域干旱区主要分布在东北、西南部;从季度变化来看,春旱和夏旱是流域气象干旱的主要类型,夏季干旱最严重,春季次之。建立评价指标体
This study presents a simplified multivariate bias correction scheme that is sequentially implemented in the GEOS5 data assimilation system and compared against a control experiment without model bias
In order to reduce the uncertainty of offline land surface model(LSM) simulations of land evapotranspiration(ET), we used ensemble simulations based on three meteorological forcing datasets [Princeton
A Fourier analysis applied to the Mach–Zehnder interferometer(MZI) transmission spectrum for simultaneous refractive index(RI) and temperature measurements is proposed and experimentally demonstrated
Efficient second harmonic generation(SHG) in a nonlinear transparent conducting oxide(TCO) stripe waveguide that incorporates an organic polymer is theoretically investigated. The phase match conditio
In this report, genetic variation and phylogeny of B. acheilognathi were analyzed based on 96 samples collected from 20 fish host species in 29 different localities by using the r DNA internal transcr
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Based on the simulations of 31 global models in CMIP5, the performance of the models in simulating the Hadley and Walker circulations is evaluated. In addition, their change in intensity by the end of
This paper investigates the possible sources of errors associated with tropical cyclone(TC) tracks forecasted using the Global/Regional Assimilation and Prediction System(GRAPES). The GRAPES forecasts
A four-dimensional variational(4D-Var) data assimilation method is implemented in an improved intermediate coupled model(ICM) of the tropical Pacific. A twin experiment is designed to evaluate the imp