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doi:  10.12013/qxyjzyj2019-018
景德镇地区大气CO2浓度变化特征

Variation characteristics of atmospheric CO2 concentration in Jingdezhen
摘要点击 101  全文点击 74  投稿时间:2019-04-15  修订日期:2019-06-10
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基金:  江西省重点研发计划项目(编号:20171BBG7005);景德镇市科技计划项目(编号:2017NYSF002);2019年景德镇市气象局项目“赣东北大气温室气体变化特征研究”
中文关键词:  大气CO2浓度,变化特征,数据筛分,景德镇
英文关键词:  atmospheric CO2 concentration  variation characteristics  data selection  Jingdezhen
        
作者中文名作者英文名单位
陈昆Chen Kun景德镇市气象局
沈竞Shen Jing江西省气象科学研究所
陈鲍发Chen Baofa景德镇市气象局
引用:陈昆,沈竞,陈鲍发.2019,景德镇地区大气CO2浓度变化特征[J].气象与减灾研究,42(2):113-118
中文摘要:
      利用景德镇温室气体监测站CO2观测数据,分析了景德镇地区2017年12月—2018年11月大气CO2浓度变化特征,同时对其浓度进行了筛分,以剔除污染数据,使其更具区域代表性。研究表明:景德镇地区大气CO2浓度昼降夜升,早上最高,傍晚最低;春季最高,秋季最低;春、夏季NNE、NE、ENE风向,秋季NE、ENE风向以及冬季W、WSW、SW、SSW、S风向上CO2浓度较高。同时,春、夏和秋季大气CO2浓度大致随风速的增加而不断降低,冬季风速对大气CO2浓度无明显影响。筛分后数据显示景德镇地区年均大气CO2浓度为422.1×10-6,浓度日均值年振幅73.96×10-6,夏半年CO2浓度低于冬半年。
Abstract:
      Based on the observation data of atmospheric CO2 molar fractions from December 2017 to November 2018 in Jingdezhen greenhouse gas monitoring station, the variation characteristics of atmospheric CO2 concentration in Jingdezhen were studied, and the atmospheric CO2 value in this region was screened out by studying the influence of surface wind on its concentration. Results shows that: the atmospheric CO2 concentration in Jingdezhen decreased during the daytime and rose at night, with the highest in the morning and the lowest in the evening. In terms of seasonal changes, the highest occurred in spring and the lowest in autumn. The higher CO2 concentration appeared when the wind directions were NNE-NE-ENE in spring and summer, NE-ENE in autumn and W-WSW-SW-SSW-S in winter, while the CO2 concentration decreased with the increase of wind speed (There was no significant effect in winter) . According to the sifted data, the average annual atmospheric CO2 concentration in Jingdezhen from December 2017 to November 2018 was 422.1×10 -6. The annual amplitude of daily mean concentration was 73.96×10-6, and the CO2 molar fractions in summer half year were lower than those in winter half year.
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