Introducing the VIIRS-based Fire Emission Inventory version 0 (VFEIv0)

[摘要] A new open biomass burning inventory is presented thatrelies on the fire radiative power data from the Visible Infrared ImagingRadiometer Suite (VIIRS) on board the Suomi NPP satellite. This VIIRS-basedFire Emission Inventory (VFEI) provides emission data from early 2012 to2019 for more than 40 species of gases and aerosols at spatial resolutionsof around 500 m. We found that VFEI produces similar results when comparedto other major inventories in many regions of the world. Additionally, weconducted regional simulations using VFEI with the Weather Research andForecasting (WRF) model with chemistry (WRF-Chem) for Southern Africa(September 2016) and North America (July–August 2019). We compared aerosoloptical depth (AOD) from the model against two observational datasets: theMODIS Multi-Angle Implementation of Atmospheric Correction (MAIAC) productand AErosol RObotic NETwork (AERONET) stations. Results showed goodagreement between both simulations and the datasets, with mean AOD biases ofaround +0.03 for Southern Africa and −0.01 for North America. Bothsimulations were not only able to reproduce the AOD magnitudes accurately,but also the inter-diurnal variations of smoke concentration. In addition,we made use of the airborne data from the ObseRvations of Aerosols aboveCLouds and their intEractionS (ORACLES; Southern Africa) and the FireInfluence on Regional to Global Environments Experiment and Air Quality(FIREX-AQ; North America) campaigns to evaluate the simulations. In SouthernAfrica, results showed correlations higher than 0.77 when comparing carbonmonoxide and black carbon. In North America, correlations were lower andbiases higher. However, this is because the model was not able to reproducethe timing, shape, and location of individual plumes over complex terrain(Rocky Mountains) during the FIREX-AQ campaign period.

[学科分类] 土木及结构工程学