Aerosol three-dimensional space distribution drawing method

Abstract

The invention discloses an aerosol three-dimensional space distribution drawing method. The method comprises the following steps of firstly, observing and inverting an aerosol extinction coefficient vertical profile based on a satellite laser radar, calculating a monthly average aerosol three-dimensional space distribution map of the long-time sequence to obtain an observation-based climatic monthly aerosol extinction coefficient three-dimensional space distribution map and a mode-based climatic monthly aerosol extinction coefficient three-dimensional space distribution map, and calculating toobtain an observation-based and mode-based ratio three-dimensional space distribution map, obtaining an aerosol three-dimensional space distribution situation map hour by hour after observation constraint, and fusing the aerosol three-dimensional space distribution situation map with data observed by a ground-based Mie scattering laser radar and a satellite-borne laser radar, acquiring an hourlyaerosol optical thickness space distribution present map, and finally, acquiring an aerosol three-dimensional space distribution present map cooperating with satellite and ground active and passive remote sensing observation and mode results. Through satellite-ground active and passive remote sensing observation and cooperative fusion of mode results, more reliable aerosol three-dimensional spacedistribution information is provided.

Description

technical field [0001] The invention belongs to the technical field of atmospheric environment remote sensing applications, and in particular relates to an aerosol three-dimensional spatial distribution mapping method taking into account the advantages of observation and models. Background technique [0002] Atmospheric aerosol refers to a system with a diameter between 0.001-100 μm and composed of solid, liquid particles and atmospheric media in the mixed atmosphere. There are two main sources: one is natural sources, including dust particles, volcanic eruptions, etc.; the other is man-made sources, including vehicle exhaust emissions, biomass burning, etc. Aerosols not only affect the climate by affecting cloud changes, but are also one of the main air pollutants in cities, and their research has always been a difficult and hot issue. [0003] Existing aerosol observation techniques mainly include the following categories: [0004] Ground-based meter-scattering lidar: Li...

AI Technical Summary

Problems solved by technology

The advantage of the WRF-Chem model is that it can avoid some problems in the previous atmospheric models, such as the SAQM model, CALGRID model, MODEL3-CAMQ model, etc., such as: the meteorological process is lost when performing time-space interpolation; secondly, the physical The parameterization scheme may be different; again, the feedback effect of chemical processes on meteorological processes cannot be considered

Images