get_hycom_online

A MATLAB function to download HYCOM data easily

get_hycom_online

A MATLAB function to download hycom data easily (1992-10-02 to present)

Example-1: Download HYCOM data of a particular moment

clc;clearvars
aimpath = 'E:/data/';
region = [190 240 -5 5]; % Nino3.4
timeTick = datetime(2010,1,1);
varList = {'ssh','temp','salt','u','v'};    
D = get_hycom_online(aimpath, region, timeTick, varList);

Example-2: Download HYCOM data in bulk

clc;clearvars
aimpath = 'E:/data/';
region = [117.5 122.5 37 41]; % the Bohai Sea
timeList = datetime(2020,1,1):hours(3):datetime(2020,2,1);
varList = {'ssh','temp','salt','u','v'};

nTimes = numel(timeList);
for iTime = 1:nTimes
    timeTick = timeList(iTime);
    D = get_hycom_online(aimpath, region, timeTick, varList);
end

Example-3: Download data from a specified HYCOM product

clc;clearvars
aimpath = 'E:/data/';
region = [261 280 17.5 32.5]; % the Gulf of Mexico
timeTick = datetime(2010,1,1);
varList = {'ssh','temp','salt','u','v'};    
URL = 'http://tds.hycom.org/thredds/dodsC/GLBy0.08/expt_93.0?';
D = get_hycom_online(aimpath, region, timeTick, varList, URL);

Sample Graph

Notes

When a given longitude range includes the longitude boundaries of the original HYCOM product, you need to download it twice separately and splice it together to get the desired data.

For example, the longitude range of hycom data is [-180 180], but your given longitude range is [150 200].