Skip to content

Black carbon concentration and deposition estimations in Finland by the regional aerosol-climate model REMO-HAM

by A. I. Hienola, J. P. Pietik??inen, D. Jacob, R. Pozdun, T. Pet??j??, A. P. Hyv??rinen, L. Sogacheva, V. M. Kerminen, M. Kulmala, A. Laaksonen show all authors
Atmospheric Chemistry and Physics ()
Get full text at journal

Abstract

The prediction skill of the regional aerosol-climate model REMO-HAM was\nassessed against the black carbon (BC) concentration measurements from\nfive locations in Finland, with focus on Hyytiala station for the year\n2005. We examined to what extent the model is able to reproduce the\nmeasurements using several statistical tools: median comparison, overlap\ncoefficient (OVL; the common area under two probability distributions\ncurves) and Z score (a measure of standard deviation, shape and spread\nof the distributions). The results of the statistics showed that the\nmodel is biased low. The local and regional emissions of BC have a\nsignificant contribution, and the model tendency to flatten the observed\nBC is most likely dominated by the lack of domestic burning of biofuel\nin the emission inventories. A further examination of the precipitation\ndata from both measurements and model showed that there is no\ncorrelation between REMO's excessive precipitation and BC\nunderestimation. This suggests that the excessive wet removal is not the\nmain cause of the low black carbon concentration output. In addition, a\ncomparison of wind directions in relation with high black carbon\nconcentrations shows that REMO-HAM is able to predict the BC source\ndirections relatively well. Cumulative black carbon deposition fluxes\nover Finland were estimated, including the deposition on snow.

Cite this document (BETA)

Readership Statistics

18 Readers on Mendeley
by Discipline
 
39% Environmental Science
 
39% Earth and Planetary Sciences
 
17% Physics and Astronomy
by Academic Status
 
44% Researcher
 
33% Student > Ph. D. Student
 
17% Student > Master
by Country
 
6% Spain
 
6% Finland
 
6% United States

Sign up today - FREE

Mendeley saves you time finding and organizing research. Learn more

  • All your research in one place
  • Add and import papers easily
  • Access it anywhere, anytime

Start using Mendeley in seconds!

Sign up & Download

Already have an account? Sign in