Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

How does CPD contamination flagging work?

April 26, 2017contamination CPD flagging

0

Posted

How does CPD contamination flagging work?

1 Answer

0

Posted

There are several ways the contamination flag can be set: (a) based on a wind sector (b) based on a low or high wind speed (c) based on a CN concentration. These parameters are set in the cpd.ini file in the [AERMON] module. The contaminated bit will be set if any samples during the averaging period were flagged as contaminated (even if they were not averaged because of the above setting). Note: if you want the data values logged rather than replaced with missing value codes make sure that the following parameter: Average_On_Contam=TRUE in the [AEROSOL] module is set to TRUE. If it is set to FALSE then the data will be replaced with missing value codes in the raw data.