Inverse modeling of emissions and their time profiles

Developmental Biology

Pavel Jurus¹  Jaroslav Resler¹  Krystof Eben¹  Jitka Liczki¹ 

[1] Institute of Computer Science, Academy of Sciences of the Czech Republic, Pod Vodarenskou vezi 2, 182 07 Prague 8, Czech Republic$$

关键词: 4DVar;    Inverse modeling;    Diurnal time profile of emission;    CMAQ adjoint;    Satellite observations;   

DOI  :  10.5094/APR.2010.036

学科分类：农业科学（综合）

来源: Dokuz Eylul Universitesi * Department of Environmental Engineering

【 摘 要 】

The paper presents a version of the 4DVar method, capable of optimizing diurnal time profiles of emissions. It is a generalization of existing inverse methods that optimize emission daily totals. The core of the method is formed by the CMAQ adjoint model with SAPRC99 mechanism. Measurements from both ground–level stations (NO₂ and O₃), and satellites (retrieved columns of NO₂ from GOME2 and OMI and the lowest layer of O₃ retrieved from IASI) have been used as a data source for the inverse modeling procedure. The method can be used for detection of bias or errors in the emission model. It also can assist in development of data–driven emission model with location–specific time profiles of emissions. Different aspects of the method are illustrated on simulation experiments. Forecasting performance of the optimized model is evaluated for O₃ and NO₂ concentrations.

【 授权许可】

Unknown   

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