[idvusers] Accessing NOAA/ESRL/PSD THREDDS and RAMADDA servers in IDV


As part of a mandated effort to improve NOAA web security, the NOAA/ESRL websites switched from using HTTP to secure HTTP (HTTPS) in mid-December.

This affects IDV users who were accessing data from the NOAA/ESRL/PSD THREDDS and RAMADDA servers. The IDV nightly build now has fixes for the problems that were uncovered at NOAA and in the IDV and is available here:


Specific fixes:

- the URL for the PSD THREDDS Data Server (TDS) is now:


as Julien noted in a previous e-mail. The IDV main catalog now points to this address.

- If you were using the NOAA-ESRL-PSD IDV plugin, you will need to uninstall the old plugin (use the Tools->Plugin Manager menu, find it in the list of installed plugins, and click the icon to the left of the name (with the minus(-) sign on it), update your IDV to the nightly build, and then re-install the plugin (Tools->Plugin Manager menu, find it under Available Plugins->Customized IDVs).

- If you had the http version of the PSD TDS catalog in your list of catalogs in the Catalog chooser, installing the new plugin will remove the old references. Unfortunately, the method for adding in the new versions in IDV doesn't work, so you'll need to manually add it (copy the link above and paste it into the Catalogs section of the Catalog chooser), or select it from the main idvcatalog.xml under Community IDV Catalog->Community Data Servers. You can also add in the NOAA/ESRL/PSD RAMADDA server catalog with this URL:


If you have problems accessing the NOAA/ESRL/PSD servers through the IDV, you can contact me directly.

Don Murray
Don Murray