DOAJ Open Access 2017

Comparison of aerosol lidar retrieval methods for boundary layer height detection using ceilometer aerosol backscatter data

V. Caicedo B. Rappenglück B. Lefer G. Morris D. Toledo +1 lainnya

Lihat Sumber DOI

Abstrak

Three algorithms for estimating the boundary layer heights are assessed: an aerosol gradient method, a cluster analysis method, and a Haar wavelet method. Over 40 daytime clear-sky radiosonde profiles are used to compare aerosol backscatter boundary layer heights retrieved by a Vaisala CL31 ceilometer. Overall good agreement between radiosonde- and aerosol-derived boundary layer heights was found for all methods. The cluster method was found to be particularly sensitive to noise in ceilometer signals and lofted aerosol layers (48.8 % of comparisons), while the gradient method showed limitations in low-aerosol-backscatter conditions. The Haar wavelet method was demonstrated to be the most robust, only showing limitations in 22.5 % of all observations. Occasional differences between thermodynamically and aerosol-derived boundary layer heights were observed.

Topik & Kata Kunci

Environmental engineering Earthwork. Foundations

Penulis (6)

V. Caicedo

B. Rappenglück

B. Lefer

G. Morris

D. Toledo

R. Delgado

Format Sitasi

APA MLA BibTeX

Caicedo, V., Rappenglück, B., Lefer, B., Morris, G., Toledo, D., Delgado, R. (2017). Comparison of aerosol lidar retrieval methods for boundary layer height detection using ceilometer aerosol backscatter data. https://doi.org/10.5194/amt-10-1609-2017

Akses Cepat

Lihat di Sumber doi.org/10.5194/amt-10-1609-2017

Informasi Jurnal

Tahun Terbit: 2017
Sumber Database: DOAJ
DOI: 10.5194/amt-10-1609-2017
Akses: Open Access ✓