使用Matlab读取GRiB2文件

本文介绍了使用Matlab读取GRiB2文件的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

有没有工具箱可以将GRIB2数据读入Matlab?

Are there any toolboxes, which allow reading GRIB2 data into Matlab?

一个示例(由NOAA建模的波浪)可以是GRIB2，可从 ftp://polar获得.ncep.noaa.gov/pub/history/waves

An example (waves modeled by NOAA) could be GRIB2 available from ftp://polar.ncep.noaa.gov/pub/history/waves

推荐答案

在用于Matlab的NCTOOLBOX 中，您可以像本地NetCDF文件或远程OPeNDAP数据集一样打开GRIB2文件:

In NCTOOLBOX for Matlab, you can open a GRIB2 file just like a local NetCDF file or a remote OPeNDAP dataset:

% download data ! wget ftp://polar.ncep.noaa.gov/pub/history/waves/multi_1.at_4m.dp.200607.grb2 % create ncgeodataset object nc=ncgeodataset('multi_1.at_4m.dp.200607.grb2'); % list variables nc.variables % create geovariable object dirvar=nc.geovariable('Primary_wave_direction_degree_true_surface'); % get data at 1st time step dir=dirvar.data(1,:,:); % get grid at 1st time step g=dirvar.grid_interop(1,:,:); % plot pcolorjw(g.lon,g.lat,dir); title(datestr(g.time))