模型低估了氢氧反应性，导致高估了氢气对气候的影响

arXiv - PHYS - Atmospheric and Oceanic Physics Pub Date : 2024-08-09 DOI:arxiv-2408.05127

Laura H. Yang, Daniel J. Jacob, Haipeng Lin, Ruijun Dang, Kelvin H. Bates, James D. East, Katherine R. Travis, Drew C. Pendergrass, Lee T. Murray

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引用次数: 0

摘要

部署氢气技术是减少能源二氧化碳排放的一种选择，但最近的研究呼吁人们关注氢气逃逸性排放对气候的间接影响。我们发现，当前大气化学模型中羟基（OH）自由基浓度和反应性的偏差可能会导致氢气全球变暖潜势（GWP）被高估 20%。更好地了解羟基化学对于可靠地估计氢的全球变暖潜势至关重要。

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Model underestimates of OH reactivity cause overestimate of hydrogen's climate impact

Deploying hydrogen technologies is one option to reduce energy carbon dioxide emissions, but recent studies have called attention to the indirect climate implications of fugitive hydrogen emissions. We find that biases in hydroxyl (OH) radical concentrations and reactivity in current atmospheric chemistry models may cause a 20% overestimate of the hydrogen Global Warming Potential (GWP). A better understanding of OH chemistry is critical for reliable estimates of the hydrogen GWP.

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arXiv - PHYS - Atmospheric and Oceanic Physics

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