Satellite-based Inventory of Episodes of Stratospheric Penetration of Siberian Wildfires Plumes in the Period 2002 - Present
Résumé
In recent years, episodes of stratospheric penetration of plumes containing biomass burning products from wildfires became more frequent. An approach to detect and characterize such events from satellite data consists in synergetic use of limb and nadir measurements. It makes use of Absorbing Aerosol Index (AAI) from nadir and vertical profiles of aerosol extinction and biomass burning gases from limb. The approach is applied to detect the episodes of stratospheric penetration of Siberian wildfires plumes in the period from 2002 until present. We present an ongoing inventory of such events, some resulting from PyroCb events, some from other convective lifting mechanisms. It particular, it includes estimations of mass of smoke and gazes injected in the stratosphere by such events, which is a must data for modeling the tropopause-crossing episodes of wildfire smoke plumes. Injected mass estimations are performed from CCI Multi-satellite AAI, MIPAS, MLS, and OMPS NM and LP datasets, using two different methods. The limitations of the approach and its feasibility for OMPS NM combined with CAIRT limb profiler instrument, which is selected for Phase 2 of ESA Earth Explorer 11 mission, are discussed.