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Donwload earthdata with R script
Posted: Mon Mar 28, 2022 3:55 pm America/New_York
by vharvey
Hi Is there an convient way to donwload Modis data using an R script? Here an example of teh faile I would liek to download:
http://oceandata.sci.gsfc.nasa.gov [/opendap/MODISA/L3SMI/2017/241/A2017241.L3m_DAY_CHL_chl_ocx_4km.nc]
Thanks for your help.
Val.
Re: Donwload earthdata with R script
Posted: Thu Mar 31, 2022 7:54 pm America/New_York
by OB.DAACx - amscott
Hi Val,
I don't know R, but we have a convenient
python script on our site.
If you'd like help with your R script and you don't mind pasting or attaching the code, maybe the user community can be of assistance.
Re: Donwload earthdata with R script
Posted: Tue Apr 05, 2022 11:54 am America/New_York
by imaginaryfish
Hi vharvey,
The following code will download the file you are interested in.
library(ncdf4)
url <- '
http://oceandata.sci.gsfc.nasa.gov [/opendap/MODISA/L3SMI/2017/241/A2017241.L3m_DAY_CHL_chl_ocx_4km.nc]'
modis <- nc_open(url)
chl_ocx <- ncvar_get(modis, 'chl_ocx')
lonm <- ncvar_get(modis, 'lon')
latm <- ncvar_get(modis, 'lat')
nc_close(modis)
Best,
Brendan