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RSS FeedsRemote Sensing, Vol. 10, Pages 1261: Measurement of Planetary Boundary Layer Winds with Scanning Doppler Lidar (Remote Sensing)

 
 

15 august 2018 10:01:21

 
Remote Sensing, Vol. 10, Pages 1261: Measurement of Planetary Boundary Layer Winds with Scanning Doppler Lidar (Remote Sensing)
 


The accurate measurement of wind profiles in the planetary boundary layer (PBL) is important not only for numerical weather prediction, but also for air quality modeling. Two wind retrieval methods using scanning Doppler light detection and ranging (lidar) measurements were compared and validated with simultaneous radiosonde soundings. A comparison with 17 radiosonde sounding profiles showed that the sine-fitting method was able to retrieve a larger number of data points, but the singular value decomposition method showed significantly smaller bias (0.57 m s−1) and root-mean-square error (1.75 m s−1) with radiosonde soundings. Increasing the averaging time interval of radial velocity for obtaining velocity azimuth display scans to 15 min resulted in better agreement with radiosonde soundings due to the signal averaging effect on noise. Simultaneous measurements from collocated wind Doppler lidar and aerosol Mie-scattering lidar revealed the temporal evolution of PBL winds and the vertical distribution of aerosols within the PBL.


 
59 viewsCategory: Geology, Physics
 
Remote Sensing, Vol. 10, Pages 1262: Land Surface Albedo Derived on a Ten Daily Basis from Meteosat Second Generation Observations: The NRT and Climate Data Record Collections from the EUMETSAT LSA SAF (Remote Sensing)
Remote Sensing, Vol. 10, Pages 1260: Influence of Spatial Aggregation on Prediction Accuracy of Green Vegetation Using Boosted Regression Trees (Remote Sensing)
 
 
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