利用数值模式和示踪试验确定某厂址地区大气扩散参数

摘要/Abstract

摘要： 利用WRF数值模式和CALPUFF扩散模式相结合的技术手段分析研究某沿海厂址大气扩散参数,并通过现场示踪试验验证了数值模式模拟结果的可靠性和模拟方法的适用性。结果表明,CALPUFF扩散模式无论从扩散因子数量值还是分布范围上,与现场示踪试验结果均能保持较好的一致性,CALPUFF扩散模拟结果能较好地反映当地大气扩散实际特征。通过与P-G和IAEA扩散参数比对得出,CALPUFF数值模式结果确定的厂址大气扩散参数符合大气扩散特征的一般规律;在考虑厂址实际下垫面和流场特征情况下,CALPUFF数值模式确定的扩散参数整体较P-G扩散参数偏大,其扩散参数值能较真实地反映该地区气载污染物的扩散能力。

关键词: 扩散参数, 数值模拟, 示踪试验, WRF, CALPUFF

Abstract: A Weather Research and Forecasting Model (WRF) and atmospheric diffusion model (CALPUFF) have been used to numerically simulate and analyze the atmospheric diffusion parameters in coastal area of a site. Compared with the results of atmospheric tracer test, whether from value range or from distribution of diffusion factor, CALPUFF diffusion model can better reflect the local atmospheric diffusion characteristics. Compared with P-G diffusion parameters, atmospheric diffusion parameters obtained from CALPUFF model are more consistent with the general law of atmospheric diffusion. In consideration of the actual underlying surface and flow field characteristics of the site, the diffusion parameters determined by the CALPUFF numerical model which are larger than the P-G diffusion parameters and smaller than the IAEA diffusion, can more truly reflect the diffusion capacity of pollutants in the area.

Key words: diffusion parameters, numerical simulation, tracer test, WRF, CALPUFF

中图分类号:

X169

杨宗甄, 鲍昕杰, 陶乃贵, 张晓峰. 利用数值模式和示踪试验确定某厂址地区大气扩散参数[J]. 辐射防护, 2022, 42(1): 25-33.

YANG Zongzhen, BAO Xinjie, TAO Naigui, ZHANG Xiaofeng. Determining the atmospheric diffusion parameters in a site using numerical simulation and tracer test[J]. RADIATION PROTECTION, 2022, 42(1): 25-33.

参考文献 23

[1]	US NRC.XOQDOQ: computer program for the meteorological evaluation of routine effluent releases at nuclear power stations [R].NUREG/CR—2919. 1982.
[2]	赵蔚. 南票地区大气扩散参数实测计算[J]. 气象与环境学报, 2006, 22(3):33-36.ZHAO Wei. Calculating of air diffusion parameters in Nanpiao area[J]. Meteorological and Environmental Sciences, 2006, 22(3):33-36.
[3]	夏兰. 核电站环境评价中湍流扩散参数的分析及应用[D]. 北京:中国气象科学研究院,2009.XIA Lan. Application of footprint analysis of turbulent diffusion on environmental impact accessment programs of nuclear power stations[D]. Beijing: Atmospheric Physics and Environment, 2009.
[4]	张永义, 闫江雨, 卫为强. 复杂地形条件下大气扩散六氟化硫示踪实验研究[J]. 辐射防护通讯, 2006, 20 (3): 7-14.ZHANG Yongyi, YAN Jiangyu, WEI Weiqiang. Sulfuhexafluoride-based atmosphere diffusion trace experimental study in complex topography[J]. Radiation Protection Bulletin, 2006, 20 (3): 7-14.
[5]	胡二邦, 辛存田, 姚仁太, 等. 某拟建滨海核电厂址大气扩散规律初探[J]. 辐射防护, 2005, 25(2): 80-90.HU Erbang, XIN Cuntian, YAO Rentai, et al. Preliminary study of atmospheric dispersion on the proposed sit of coastal nuclear power plant[J]. Radiation Protection, 2005, 25(2): 80-90.
[6]	姚仁太, 乔清党, 郝宏伟, 等. 田湾核电厂址大气弥散风洞实验研究[J]. 辐射防护, 2001, 21(2): 106-114.YAO Rentai, QIAO Qingdang, HAO Hongwei, et al. A wind tunnel experimental study on atmospheric dispersion for tianwan nuclear power plant[J]. Radiation Protection, 2001, 21(2): 106-114.
[7]	康凌, 蔡旭辉, 王志远, 等. 福建漳州沿海大气扩散特性的数值分析与模拟[J]. 北京大学学报, 2011, 47(1): 71-78.KANG Ling, CAI Xuhui, WANG Zhiyuan, et al. Numerical analysis and simulation of characteristics of atmospheric diffusion in coastal area of zhangzhou, fujian[J]. Acta Scientiarum Naturalium Universitatis Pekinensis, 2011, 47(1): 71-78.
[8]	陈晓秋. 大亚湾核电厂址大气示踪试验的数值模拟[J].辐射防护,2005,25(5): 274-282.CHEN Xiaoqiu. Numerical simulation of trace tests in atmosphere in Daya Bay nuclear power site[J]. Radiation Protection, 2005, 25(5):274-290.
[9]	胡二邦, 辛存田, 宣义仁, 等. 福建惠安核电厂址SF6示踪试验研究[J].环境科学学报,2004,24(2):320-325.HU Erbang, XIN Cuntian, XUAN Yiren, et al. The SF6 tracer test study in the Fujian Huian nuclear power plant[J]. Acta Scientiae Circumstantiae, 2004, 24(2):320-325.
[10]	胡二邦, 王寒, 张永义, 等. 滨海复杂地形核电厂址高斯烟羽模式有效性检验[J].辐射防护,2004,24(5):289-296.HU Erbang, WANG Han, ZHANG Yongyi, et al. Examination of validation if gaussian plume model at the coastal nuclear power plant's site with complex terrain[J]. Radiation Protection, 2004, 24(5):289-313.
[11]	王博, 栾海燕, 吴晗, 等. 核电厂野外示踪试验的三维数值模拟研究[J].中国环境科学,2016,36(10):2950-2956.WANG Bo, LUAN Haiyan, WU Han, et al. Three dimensional numerical simulation of field tracer experiment for atmospheric dispersion around a domestic nuclear power plant[J].China Environmental Science,2016,36(10):2950-2956.
[12]	朱好, 张宏升, 蔡旭晖, 等. CALPUFF在复杂地形条件下的近场大气扩散模拟研究[J]. 北京大学学报(自然科学版), 2013, 49(3):452-462.ZHU Hao, ZHANG Hongsheng, CAI Xuhui, et al. Using CALPUFF for near-field atmospheric dispersion simulation over complex terrain[J]. Acta Scientiarum Naturalium Universitatis Pekinensis, 2013, 49(3):452-462.
[13]	朱好, 蔡旭晖, 张宏升, 等. 内陆丘陵河谷地区小风条件下的大气扩散模拟研究[J]. 环境科学学报,2011,31(3):613-623.ZHU Hao, CAI Xuhui, ZHANG Hongsheng, et al. Atmospheric dispersion simulation in low wind conditions in inland hills and valleys[J]. Acta Scientiae Circumstantiae, 2011, 31(3):613-623.
[14]	CUI Huiling, YAO Rentai, XU Xiangjun, et al. A tracer experiment study to evaluate the CALPUFF real time application in a near-field complex terrain setting [J].Atmospheric Environment,2011,(45):7525-7532.
[15]	杨宗甄, 游春华, 鲍昕杰. 某厂址沿海大气边界层和大气扩散特征的数值模拟与分析[J]. 辐射防护, 2015, 35(1):12-22.YANG Zongzhen, YOU Chunhua, BAO Xinjie. Numerical simulation and analysis of characteristics of atmospheric boundary layer and atmospheric diffusion in coastal area of a site[J]. Radiation Protection, 2015, 35(1):12-22.
[16]	杨景朝, 伯鑫, 田军, 等. WRF四维同化数据在空气质量法规模型CALPUFF的应用研究[J]. 环境工程,2018,36(7):165-169.YANG Chaojing, BO Xin, TIAN Jun, et al. Application of Four-dimension data assimilation methods in CALPUFF[J]. Environmental Engineering, 2018,36(7):165-169.
[17]	舒璐, 杨宏, 马丹阳, 等. WRF水平分辨率对CALPUFF模拟污染物浓度的影响[J]. 环境保护科学, 2019, 45(6):84-91.SHU Lu, YANG Hong, MA Danyang, et al. Effect of WRF horizontal resolution on pollutant concentration simulated by CALPUFF[J].Environmental Protection Science, 2019,45(6):84-91.
[18]	Ruggeri M F, Lana N B, Altamirano J C, et al. Spatial distribution, patterns and source contributions of POPs in the atmosphere of Great Mendoza using the WRF/CALMET/CALPUFF modelling system[J].Emerging Contaminants, 2020,(6):103-113.
[19]	Marco Falocchi, Werner Tirler, Lorenzo Giovannini, et al. A dataset of tracer concentrations and meteorological observations from the Bolzano Tracer EXperiment(BTEX) to characterize pollutant dispersion processes in an Alpine valley [J]. Earth Syst Sci Data, 2020, (12):277-291.
[20]	Chang J C, Hanna S R. Air quality model performance evalution[J].Meteorology and Atmospheric Physics,2004,87:167-196.
[21]	Charles Audet, Warren L Hare. Mesh adaptive direct search,Derivative-free and blackbox optimization[M].Springer, Cham,2017.
[22]	Charles Audet, Sebastien Le Digabel, Christophe Tribes. The mesh adaptive direct search algorithm for granular and discrete viriables[J]. SIAM Journal on Optimization, 2018,29(2):1164-1189.
[23]	蒋维楣, 孙鉴泞, 曹文俊, 等. 空气污染气象学教程[M]. 北京:气象出版社, 2004:85-87.