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首页> 外文期刊>Atmospheric chemistry and physics >Influence of Meteorology and interrelationship with greenhouse gases (CO2 and CH4) at a suburban site of India
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Influence of Meteorology and interrelationship with greenhouse gases (CO2 and CH4) at a suburban site of India

机译：气象和相互关系与温室气体（CO2和CH4）对印度郊区的影响

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摘要

Atmospheric greenhouse gases (GHGs), such as carbon dioxide (CO2) and methane (CH4), are important climate forcing agents due to their significant impacts on the climate system. The present study brings out first continuous measurements of atmospheric GHGs using high-precision LGR-GGA over Shadnagar, a suburban site of Central India during the year 2014. The annual mean CO2 and CH4 over the study region are found to be 394aEuro-+/- aEuro-2.92 and 1.92aEuro-+/- aEuro-0.07aEuro-ppm (mu aEuro-+/- aEuro-1 sigma) respectively. CO2 and CH4 show a significant seasonal variation during the study period with maximum (minimum) CO2 observed during pre-monsoon (monsoon), while CH4 recorded the maximum during post-monsoon and minimum during monsoon. Irrespective of the seasons, consistent diurnal variations of these gases are observed. Influences of prevailing meteorology (air temperature, wind speed, wind direction, and relative humidity) on GHGs have also been investigated. CO2 and CH4 show a strong positive correlation during winter, pre-monsoon, monsoon, and post-monsoon with correlation coefficients (R-s) equal to 0.80, 0.80, 0.61, and 0.72 respectively, indicating a common anthropogenic source for these gases. Analysis of this study reveals the major sources for CO2 are soil respiration and anthropogenic emissions while vegetation acts as a main sink, whereas the major source and sink for CH4 are vegetation and presence of hydroxyl (OH) radicals.
机译：大气温室气体（如二氧化碳（CO2）和甲烷（CH4），是重要的气候迫使代理，因为它们对气候系统的显着影响。本研究在2014年期间，使用高精度LGR-GGA在Shadnnagar，在2014年期间使用高精度LGR-GGA的首次连续测量。在研究区的年度平均二氧化碳和CH4，均为394Aeuro - + / - Aeuro-2.92和1.92aeuro - + / - Aeuro-0.07aeuro-ppm（mu Aeuro - + / - Aeuro-1 sigma）。 CO2和CH4在季风（季风）期间观察到最大（最小）二氧化碳的研究期间，CH 4在季风后的最大值和季风期间记录最大值。无论季节如何，观察到这些气体的一致昼夜变化。还研究了普遍气象（空气温度，风速，风向和相对湿度）对GHG的影响。 CO 2和CH4在冬季，季风，季风和季隆期间表现出强烈的正相关系数（R-S）分别等于0.80,0.80,0.61和0.72，表明这些气体的常见的人为源。本研究的分析揭示了二氧化碳的主要来源是土壤呼吸和人为排放，而植被充当主水槽，而CH4的主要来源和沉淀是植被和羟基（OH）基团的存在。

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