Assessment of The Impacts of Black Carbon Emissions On Urban and Regional Air Quality and Climate: Mexico Case Study

本项目主要研究大气中主要的短期气候污染物之一黑碳（BC）。将开展全面的多尺度模拟研究，以评估BC在城市和区域尺度上的气候影响。建模研究将应用于墨西哥都市圈（MCMA），并利用美国国家科学基金会赞助的MCMA 2006年MILAGRO （Megacity Initiative: Local and Global Research Observations）活动中获得的地面、飞机和卫星测量数据进行评估。本研究的目的是：(1)仅评估BC的辐射影响；(2)评估BC和共排放物种的净辐射效应；(3)估算主要碳源的区域辐射影响；(4)研究气候变化对空气质量和BC辐射影响的影响。WRF-Chem模型将由国家环境预测中心（NCEP）再分析数据和NASA GISS- e2 - r模型输出驱动，化学初始条件和边界条件将从全球化学输运模型MOZART-4和GISS输出中插值。

This project focuses on the study of black carbon (BC) in the atmosphere, one of the major short-lived climate pollutants. Comprehensive multi-scale modeling studies will be conducted to assess the climate impacts of BC on urban and regional scales. Modeling studies will be applied to the Mexico City Metropolitan Area (MCMA) and evaluated using ground-, aircraft- and satellite-based measurements obtained during the NSF-sponsored 2006 MILAGRO (Megacity Initiative: Local and Global Research Observations) Campaign in the MCMA.The objectives of the research are to: (1) evaluate the radiative impacts of BC only; (2) assess the net radiative effects of BC and co-emitted species; (3) apportion the regional radiative impact of major BC emission sources; and (4) investigate the influences of climate change on air quality and on the radiative impact of BC. The WRF-Chem model will be driven by both the National Center for Environmental Prediction (NCEP) reanalysis data and the NASA GISS-E2-R model output, and chemical initial and boundary conditions will be interpolated from the global chemical transport model MOZART-4 and GISS outputs.