<p>Measurement, Data, and Technological services related to cloud and fog properties.</p>

<p>Data evaluation procedures and plausibility tests developed to evaluate the quality of geophysical parameter retrievals and qualify data before it enters the ACTRIS database. Doppler cloud radar and microwave radiometer data should be sent by NFs to the ACTRIS  Cloud Remote Sensing Data Centre. The DC should then be responsible for processing data to produce retrievals of relevant Cloud geophysical properties. Data evaluation, based on various tests should then be implemented to qualify the retrieved data. Methods to test retrieved are established by the TC (e.g. evaluating plausible range, internal consistency,  multi-instrument intercomparisons, …) and data evaluation procedures is developed and provided to the DC for implementation. This software is developed as open-access software.</p>