CAJ | 학술논문

利用瓦里关全球本底站和番禺气象局地面观测的 CO2浓度资料对 SCIAMACHY 反演得到的对流层 CO2产品进行验证.结果显示：SCIAMACHY产品能较好地反映对流层CO2的分布状况,在珠三角地区反演和观测的残差为1.29×10-6,相关系数为0.69,可用于分析区域对流层CO2的时空分布特征.利用2003~2009年SCIAMACHY观测资料分析研究显示：广东地区对流层CO2柱浓度最高值出现在春季,最低值出现在夏季,浓度年均值和年增长率分别为384.84×10-6和1.53×10-6/a,大于全球和我国同期的观测结果；粤东、粤西、粤北和珠三角地区的浓度均在春、冬季显著高于夏季、秋季,相同季节内各区域之间的差异不显著；粤西地区CO2柱浓度的年增长率最高,为1.82×10-6/a,珠三角和粤东地区的年增长率相当,分别为1.65,1.64×10-6/a,粤北地区的年增长率最低,为1.61×10-6/a.
이용와리관전구본저참화번우기상국지면관측적 CO2농도자료대 SCIAMACHY 반연득도적대류층 CO2산품진행험증.결과현시：SCIAMACHY산품능교호지반영대류층CO2적분포상황,재주삼각지구반연화관측적잔차위1.29×10-6,상관계수위0.69,가용우분석구역대류층CO2적시공분포특정.이용2003~2009년SCIAMACHY관측자료분석연구현시：엄동지구대류층CO2주농도최고치출현재춘계,최저치출현재하계,농도년균치화년증장솔분별위384.84×10-6화1.53×10-6/a,대우전구화아국동기적관측결과；월동、월서、월북화주삼각지구적농도균재춘、동계현저고우하계、추계,상동계절내각구역지간적차이불현저；월서지구CO2주농도적년증장솔최고,위1.82×10-6/a,주삼각화월동지구적년증장솔상당,분별위1.65,1.64×10-6/a,월북지구적년증장솔최저,위1.61×10-6/a.
SCanning Imaging Absorption spectroMeter for Atmospheric CHartographY (SCIAMACHY) retrievals of tropospheric CO2 concentrations were validated using ground-based measurements collected at the Waliguan (WLG) site (representing background conditions) and at the Panyu meteorological site (PYQXJ) in Guangzhou province from January 2003 to December 2009. Residuals and correlation coefficients from a linear regression of SCIAMACHY retrievals as a function of ground measurements were 1.33×10-6 and 0.72, respectively, at the WLG site 1.29×10-6 and 0.69, respectively, at the PYQXJ site. In Guangdong region, the satellite-retrieved annual mean CO2 concentration (384.84×10-6) and annual growth rate (1.53×10-6/a) were greater than those measured from the ground. The maximum and minimum CO2 concentrations across Guangdong province were seen in spring and summer, and all the CO2 concentrations in eastern, western, northern Guangdong and into the Pearl River Delta region (PRD) were higher in spring and winter, but lower in summer and autumn. The annual mean growth rate of CO2 was highest in western Guangdong (1.82×10-6/a), moderate over the PRD and in eastern Guangdong (1.65×10-6/a and 1.64×10-6/a, respectively), and lowest in northern Guangdong (1.61×10-6/a).