Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL093699 |
‘Simpson's Law’ and the Spectral Cancellation of Climate Feedbacks | |
Nadir Jeevanjee; Daniel D.B. Koll; Nicholas Lutsko | |
2021-07-03 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | We spectrally resolve the conventional clear-sky temperature and water vapor feedbacks in an idealized single-column framework, and show that the well-known partial compensation of these feedbacks is actually due to an almost perfect cancellation of the spectral feedbacks at wavenumbers where H2O is optically thick. This cancellation is a natural consequence of ‘Simpson's Law’, which says that H2O emission temperatures do not change with surface warming if RH is fixed. We provide an explicit formulation and validation of Simpson's Law, and furthermore show that this spectral cancellation of feedbacks is naturally incorporated in the alternative RH-based framework proposed by Held and Shell (2012) and Ingram (2012, 2013), thus bolstering the case for switching from conventional to RH-based feedbacks. We also find a negligible RH-based clear-sky lapse rate feedback, suggesting that the impact of changing lapse rates depends crucially on whether relative or specific humidity is held fixed. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/333800 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Nadir Jeevanjee,Daniel D.B. Koll,Nicholas Lutsko. ‘Simpson's Law’ and the Spectral Cancellation of Climate Feedbacks[J]. Geophysical Research Letters,2021. |
APA | Nadir Jeevanjee,Daniel D.B. Koll,&Nicholas Lutsko.(2021).‘Simpson's Law’ and the Spectral Cancellation of Climate Feedbacks.Geophysical Research Letters. |
MLA | Nadir Jeevanjee,et al."‘Simpson's Law’ and the Spectral Cancellation of Climate Feedbacks".Geophysical Research Letters (2021). |
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