Description: 集合卡尔曼滤波(EnKF) 数据同化方法可以避免了EKF 中协方差演变方程预报过程中出现的计算不准确和关于协方差矩阵的大量数据的存储问题,最主要的是可以有效的控制估计误差方差的增长,改善预报的效果。-Ensemble Kalman Filter (EnKF) data assimilation methods can be avoided in the EKF covariance forecasting the evolution equation arising in the course of the calculation is not accurate and on the covariance matrix of a large amount of data storage problems, the most important and effective control can be estimated error variance of the growth, improvement in forecasting results. Platform: |
Size: 5144576 |
Author:胡军 |
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Description: Data assimilation (DA) is a method of combining observation data with
model forecast data in order to more accurately predict the state of a system.
One of its most common uses is in numerical weather prediction (NWP).
In NWP, we have observation data about different atmospheric properties,
such as pressure, temperature and wind speed, obtained from various sources,
such as ground stations, radiosondes, aircraft and satellites, at many different
locations. We also have details of the state of the system at an earlier time,
and a model which uses this to predict a forecast state. In the analysis
step of the DA system, this model forecast state is combined with recent
observation data to give an accurate estimate of the state of the system,
called the analysis state. This analysis state is then used to produce the
forecast state for the next analysis time step. Platform: |
Size: 537600 |
Author:kalaiarasan.R |
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Description: 数据同化的经典算法，集合卡尔曼滤波算法，用Matlab写的，里面附有一些参考文献，初学者适用-Classical algorithm of data assimilation, ensemble Kalman filter algorithm, written using Matlab, which with some references, for beginners Platform: |
Size: 7256064 |
Author:小娴 |
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Description: 多普勒天气雷达资料同化程序，vc++编写，给转WRF模式的人提供方便，能直接编译，提供源代码-Doppler weather radar data assimilation procedures, vc++ writing, to transfer the person to facilitate the WRF model can be directly translated to provide the source code Platform: |
Size: 3607552 |
Author:riVer |
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Description: Ensemble Kalman Filter (EnKF) data assimilation methods can be avoided in the EKF covariance forecasting the evolution equation arising in the course of the calculation is not accurate and on the covariance matrix of a large amount of data storage problems Platform: |
Size: 198656 |
Author:rama |
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Description: Ensemble Kalman Filter (EnKF) data assimilation methods can be avoided in the EKF covariance forecasting the evolution equation arising in the course of the calculation is not accurate and on the covariance matrix of a large amount of data storage problems Platform: |
Size: 171008 |
Author:rama |
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Description: 基于数据同化的元胞自动机.Based on data assimilation of cellular automata.-Based on data assimilation of cellular automata. Platform: |
Size: 2153472 |
Author:zlp |
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Description: 该系列脚本程序用于自动生成气象资料三维变分同化中的背景场误差协方差文件，并完成绘图功能。具体运行说明见readme.txt-This series of scripts are used to generate meteorological data three-dimensional variational assimilation of a background field error covariance files, and complete the drawing function. Platform: |
Size: 36864 |
Author:zhouhao8000 |
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Description: 数值资料变分同化风廓线雷达资料前需要对资料熟悉，并进行相应的质量控制。
通过对国内外主要风廓线雷达产品发展情况的介绍，比较了它们的主要技术指标和
测量性能，分析了天线、发射机采用不同技术体制时的优缺点。-Numerical data need to be familiar with the assimilation data of wind profile radar data, and the corresponding quality control.
Based on the domestic and foreign main wind profile radar products development were introduced, compared and their main technical indexes
The measurement of performance, analyzes the advantages and disadvantages of antenna, transmitter system when using different techniques.
Platform: |
Size: 3650560 |
Author:wanggen |
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Description: A theory for estimating the probability distribution of the state of a model given a set of observations exists.
This nonlinear filtering theory unifies the data assimilation and ensemble generation problem that have been
key foci of prediction and predictability research for numerical weather and ocean prediction applications. A
new algorithm, referred to as an ensemble adjustment Kalman filter, and the more traditional implementation
of the ensemble Kalman filter in which ‘‘perturbed observations’’ are used, are derived as Monte Carlo approximations
to the nonlinear filter Platform: |
Size: 995328 |
Author:杨松 |
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Description: 简明全面地实现了集合卡尔曼滤波资料同化的方法，缺乏主程序，需要自己调试，英文注释。(The method of data assimilation for ensemble Calman filtering is simple and comprehensive. It lacks the main program and needs to debug itself.) Platform: |
Size: 7266304 |
Author:jqjtzq1234
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