Evaluation of improved land use and canopy representation in BEIS v3.61 with biogenic VOC measurements in California
Evaluation of improved land use and canopy representation in BEIS v3.61 with biogenic VOC measurements in California
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DOI：
10.5194/gmd-9-2191-2016
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发表时间：
2016-01-01
影响因子：
5.1
通讯作者：
Beaver, Melinda R.
中科院分区：
文献类型：
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作者：
Bash, Jesse O.;Baker, Kirk R.;Beaver, Melinda R.
生物挥发性有机化合物（BVOC）参与的反应可能导致二次形成臭氧和颗粒物（PM），影响空气质量和气候。BVOC排放量是重要的投入，化学传输模型应用于当地到全球范围内，但相当大的不确定性仍然存在于代表性的冠层参数化和排放算法从不同的植被物种。生物源排放清单系统（BEIS）已被用于支持臭氧和PM的科学和监管模型评估。在这里，我们描述了一个新版本的BEIS，其中包括更新的输入植被数据和冠层模型公式估计叶温和植被数据估计BVOC。修订了生物源排放土地利用数据库（BELD），以纳入来自中分辨率成像光谱仪（MODIS）土地产品和2006年国家土地覆盖数据库（NLCD）土地覆盖的土地利用数据。植被物种数据基于美国林务局（USFS）2002-2013年森林清查和分析（FIA）5.1版和美国农业部（USDA）2007年农业普查数据。与之前版本的BEIS相比，本次更新导致整个加州的BVOC排放量普遍较高。基线和更新的BVOC排放量估计值用于社区多尺度空气质量（CMAQ）模型模拟，网格分辨率为4aEuro-km，并在北方加州的多个实地活动期间测量异戊二烯和单萜进行评估。更新的冠层模型，加上改进的土地利用和植被代表性CMAQ异戊二烯和单萜估计与这些意见相比，导致更好的协议。
Biogenic volatile organic compounds (BVOC) participate in reactions that can lead to secondarily formed ozone and particulate matter (PM) impacting air quality and climate. BVOC emissions are important inputs to chemical transport models applied on local to global scales but considerable uncertainty remains in the representation of canopy parameterizations and emission algorithms from different vegetation species. The Biogenic Emission Inventory System (BEIS) has been used to support both scientific and regulatory model assessments for ozone and PM. Here we describe a new version of BEIS which includes updated input vegetation data and canopy model formulation for estimating leaf temperature and vegetation data on estimated BVOC. The Biogenic Emission Landuse Database (BELD) was revised to incorporate land use data from the Moderate Resolution Imaging Spectroradiometer (MODIS) land product and 2006 National Land Cover Database (NLCD) land coverage. Vegetation species data are based on the US Forest Service (USFS) Forest Inventory and Analysis (FIA) version 5.1 for 2002-2013 and US Department of Agriculture (USDA) 2007 census of agriculture data. This update results in generally higher BVOC emissions throughout California compared with the previous version of BEIS. Baseline and updated BVOC emission estimates are used in Community Multiscale Air Quality (CMAQ) Model simulations with 4aEuro-km grid resolution and evaluated with measurements of isoprene and monoterpenes taken during multiple field campaigns in northern California. The updated canopy model coupled with improved land use and vegetation representation resulted in better agreement between CMAQ isoprene and monoterpene estimates compared with these observations.