Cloudnet documentation

Cloudnet collects, processes, and distrubutes cloud remote sensing data from measurement sites all over the globe.

Cloudnet includes:

• Data portal to browse and download data
• CloudnetPy to post-process data
• Cloudnet submit tool to submit data
• API to access data and various services

Cloudnet is part of ACTRIS research infrastructure and is developed and maintained by the Finnish Meteorological Institute.

API Reference

Cloudnet provides several HTTP APIs to access different services:

• Fetching data and metadata
• Data submission
• Supported file types for submission
• Calibration

Processing code and files

• Cloudnet uses open source Python package CloudnetPy for processing data. See the documentation.

• Cloudnet uses netCDF4 file format. See the file format description.

• Cloudnet files exist in different data levels.

Measurement sites

Cloudnet measurements sites submit data daily into Cloudnet data portal. These sites are mostly located in Europe. In addition, data portal contains data from campaign sites all over the globe. You can also find some legacy data from sites that are part of US based Atmospheric Radiation Measurement (ARM) network.

See full list of sites here. Below is descriptions of a few.

Regular, operational Cloudnet sites

• Hyytiälä
• Kenttärova

Campaign sites

• Punta Arenas

Contact

• Questions and feedback: actris-cloudnet@fmi.fi
• News and updates: Twitter
• Questions about code: GitHub

Bugs and feature requests

Create an issue in GitHub:

• CloudnetPy
• Cloudnet data submission tool
• RPG cloud radar reader

License

Cloudnet data is licensed under a Creative Commons Attribution 4.0 international licence. This is a human-readable summary of (and not a substitute for) the licence.

You are free to:

• Share — copy and redistribute the material in any medium or format
• Adapt — remix, transform, and build upon the material for any purpose, even commercially

Under the following terms:

• Attribution — You must give appropriate credit, provide a link to the licence, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use
• No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the licence permits

The licensor cannot revoke these freedoms as long as you follow the licence terms.

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