1: based on the maximum gradient of range corrected signal
2: Zhao's algorithm (graphical algorithm without proir information about lidar calibration constants)
Reference
Zhao, C., Y. Wang, Q. Wang, Z. Li, Z. Wang, and D. Liu (2014), A new cloud and aerosol layer detection method based on micropulse lidar measurements, Journal of Geophysical Research: Atmospheres, 119(11), 6788-6802.
This has been implemented. The keyword
cloudScreenMode(see below) in polly config file can be used to switch different cloud screen algorithm.https://github.com/PollyNET/Pollynet_Processing_Chain/blob/6e2565e13e59e59bcef486234b93a4b33f1a041a/config/pollyConfigs/polly_global_config.json#L77
Right now, there are two available modes:
1: based on the maximum gradient of range corrected signal 2: Zhao's algorithm (graphical algorithm without proir information about lidar calibration constants)
Reference