Solar radiation enters the Earth's atmosphere with a portion being scattered by clouds and aerosols.

Processing, archiving and distributing Earth science data
at the NASA Langley Research Center

How can I automatically download MOPITT data?

Basic instructions for authenticating can be found here:
https://support.earthdata.nasa.gov/index.php?/Knowledgebase/Article/View...
Sample sequence and syntax:

 

cd ~
touch .netrc
echo "machine urs.earthdata.nasa.gov login <username> password <password>" > .netrc
(where <username> is your URS username and <password> is your URS password.)
chmod 0600 .netrc

 

For wget (no clobber of existing files, all files downloaded into current directory):
wget -nc -nH --cut-dirs 4 -r --load-cookies ~/.urs_cookies --save-cookies ~/.urs_cookies --keep-session-cookies --auth-no-challenge http://lance1.acom.ucar.edu/data/L2/