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首页> 外文会议>Third International Symposium on Non-Co_2 Greenhouse Gases: Scientific Understanding, Control Options and Policy Aspects Jan 21-23, 2002 Maastricht, The Netherlands >Further correction of numerical estimations for anthropogenic methane emissions from Western Siberia gas deposits by applying 3D regional transport model in direct and inverse modes
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Further correction of numerical estimations for anthropogenic methane emissions from Western Siberia gas deposits by applying 3D regional transport model in direct and inverse modes

机译：通过在正向和反向模式中应用3D区域输运模型，进一步校正西西伯利亚天然气矿的人为甲烷排放量的数值估计

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摘要

The quantitative assessment of anthropogenic methane sources is a very actual problem due to global wanning observed and necessity to decrease the injection of greenhouse gases into the atmosphere. The estimate of leakage from gas deposits varies in a wide range. Our numerical estimates using of 3D regional transport model and measurements sampled during specially organised field campaigns allowed to correct the volume of gas leakage from main Siberian gas deposits, including corresponding gas transport systems. For correction of these estimations the 3D regional transport model in inverse mode is applied, allowing to trace departure points and routes of air masses coming to the sampling points and to estimate the relative input of different parts of West Siberian gas deposits into the sampled CH_4 concentrations. The total anthropogenic methane flux from Western Siberia is evaluated as 2.2+/-0.5 Mt/year or about 0.5% of global annual methane emission.
机译：由于观测到的全球变暖和减少向大气中排放温室气体的必要性，人为甲烷源的定量评估是一个非常实际的问题。气体沉积物泄漏的估计值范围很广。我们使用3D区域运输模型进行了数值估算，并在专门组织的野战中采样了测量值，从而可以校正西伯利亚主要天然气藏的天然气泄漏量，包括相应的天然气传输系统。为了更正这些估计，应用了逆向模式的3D区域运输模型，可以跟踪出发点和到达采样点的空气质量路线，并估计西伯利亚西气藏不同部分相对于采样CH_4浓度的相对输入。 。西伯利亚西部的人为甲烷总排放量估计为每年2.2 +/- 0.5 Mt，约占全球每年甲烷排放量的0.5％。

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