Cloudnet Data Archive

Access for Cloudnet participants

Access to preliminary data is restricted to Cloudnet participants.

• CLOUDNET Web archive at Reading: In addition to the release datasets it contains Chilbolton instrumental data and preliminary data. Email Ewan O'Connor for the password.
• KNMI FTP site: Contains instrumental data from the Cabauw site. The data are in the CLOUDNET_DBASE directory. Email Henk Klein Baltink for the password.
• SIRTA FTP site: Contains instrumental data from the Palaiseau site. No password is required at the prompt, just hit return.

Data formats

Most Cloudnet data is provided in NetCDF format, conforming to the

• Cloudnet NetCDF conventions (updated 23 August 2004)

Some level 1a data from passive instruments (radiometers and rain gauges) are provided in NASA Ames format.

Model data are converted to a common NetCDF format (PDF documentation), but the original formats used by the model providers are described here:

• Met Office
• ECMWF
• Meteo France
• KNMI HIRLAM (note that these data are only 3-hourly so the KNMI RACMO model is used instead)
• KNMI RACMO (This page is on the KNMI server: go to "setup", "model evaluation", then "PLAN").

• The current representation of clouds in the various models
• A chart of the variables provided by each model