Direct Radiative Effects of Smoke Aerosol in the Region of Tiksi Station (Russian Arctic): Preliminary Results

Abstract

We present model estimates of diurnally averaged direct radiative effects of smoke aerosol in the solar spectral range obtained using observations at the Tiksi station in the period of anomalously high black carbon (ВС) concentration in the near-surface atmospheric layer (July 2014). These data are compared with the radiative effect of aerosol tipical for summer conditions in this region. It is shown that the monthly average radiative effects, caused, on the one hand, by variations in the optical characteristics of background aerosol and, on the other hand, by short-term BC outflows from forest fires to the region of observations, are comparable in value.