Work

Measurement of Planetary Boundary Layer Winds with Scanning Doppler Lidar

Year: 2018

Type: article

Abstract: 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.

Source: Remote Sensing

DOI: 10.3390/rs10081261

Authors: Soojin Park, Sang-Woo Kim, Moon-Soo Park, Chang-Keun Song

Institutions: Seoul National University, Hankuk University of Foreign Studies, Ulsan National Institute of Science and Technology

Language: English

Topic: Meteorological Phenomena and Simulations

Subfield: Atmospheric Science

Field: Earth and Planetary Sciences

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $3,258

Funders: Ministry of Environment, Korea Meteorological Administration, Ministry of Science and ICT, South Korea