English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

. Vertical distributions of aerosol optical properties derived frommeasurements made during 11 aircraft flights over the North China Plain (NCP)in May–June 2016 during the Air Chemistry Research In Asia (ARIAs) wereanalyzed. Aerosol optical data from in situ aircraft measurements show goodcorrelation with ground-based measurements. The regional variability ofaerosol optical profiles such as aerosol scattering and backscattering,absorption, extinction, single scattering albedo (SSA), and theAngstrom exponent ( α ) are thoroughlycharacterized for the first time over the NCP. The SSA at 550 nm showed a regional mean value of0.85  ±  0.02 with moderate to strong absorption and the α rangedfrom 0.49 to 2.53 (median 1.53), indicating both mineral dust andaccumulation-mode aerosols. Most of the aerosol particles were located in the lowest 2 kmof the atmosphere. We describe three typical planetary boundary layer (PBL)scenarios and associated transport pathways as well as the correlationbetween aerosol scattering coefficients and relative humidity (RH). Aerosolscattering coefficients decreased slowly with height in the clean PBLcondition, but decreased sharply above the PBL under polluted conditions,which showed a strong correlation ( R2 ≥  0.78) with ambient RH.Back-trajectory analysis shows that clean air masses generally originatedfrom the distant northwestern part of China, while most of the polluted airmasses were from the heavily polluted interior and coastal areas near thecampaign region.

Vertical distributions of aerosol optical properties during the spring 2016 ARIAs airborne campaign in the North China Plain