دورية أكاديمية
Atmospheric heat transport is governed by meridional gradients in surface evaporation in modern-day earth-like climates.
| العنوان: | Atmospheric heat transport is governed by meridional gradients in surface evaporation in modern-day earth-like climates. |
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| المؤلفون: | Fajber R; Department of Atmospheric Sciences, University of Washington, Seattle, WA 98195., Donohoe A; Polar Science Center, Applied Physics Laboratory, University of Washington, Seattle, WA 98105., Ragen S; School of Oceanography, University of Washington, Seattle, WA 98195., Armour KC; Department of Atmospheric Sciences, University of Washington, Seattle, WA 98195.; School of Oceanography, University of Washington, Seattle, WA 98195., Kushner PJ; Department of Physics, University of Toronto, Toronto, ON M5S 1A1, Canada. |
| المصدر: | Proceedings of the National Academy of Sciences of the United States of America [Proc Natl Acad Sci U S A] 2023 Jun 20; Vol. 120 (25), pp. e2217202120. Date of Electronic Publication: 2023 Jun 13. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: National Academy of Sciences Country of Publication: United States NLM ID: 7505876 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1091-6490 (Electronic) Linking ISSN: 00278424 NLM ISO Abbreviation: Proc Natl Acad Sci U S A Subsets: PubMed not MEDLINE; MEDLINE |
| أسماء مطبوعة: | Original Publication: Washington, DC : National Academy of Sciences |
| مستخلص: | Evaporation adds moisture to the atmosphere, while condensation removes it. Condensation also adds thermal energy to the atmosphere, which must be removed from the atmosphere by radiative cooling. As a result of these two processes, there is a net flow of energy driven by surface evaporation adding energy and radiative cooling removing energy from the atmosphere. Here, we calculate the implied heat transport of this process to find the atmospheric heat transport in balance with the surface evaporation. In modern-day Earth-like climates, evaporation varies strongly between the equator and the poles, while the net radiative cooling in the atmosphere is nearly meridionally uniform, and as a consequence, the heat transport governed by evaporation is similar to the total poleward heat transport of the atmosphere. This analysis is free from cancellations between moist and dry static energy transports, which greatly simplifies the interpretation of atmospheric heat transport and its relationship to the diabatic heating and cooling that governs the atmospheric heat transport. We further demonstrate, using a hierarchy of models, that much of the response of atmospheric heat transport to perturbations, including increasing CO |
| References: | Proc Natl Acad Sci U S A. 2017 Dec 5;114(49):12888-12893. (PMID: 29158397) Ann N Y Acad Sci. 2020 Jul;1472(1):49-75. (PMID: 32246848) |
| معلومات مُعتمدة: | NA18NWS4620043B DOC | NOAA | Climate Program Office (CPO); OCE-1850900 National Science Foundation (NSF); CLD-2019647 National Science Foundation (NSF) |
| فهرسة مساهمة: | Keywords: climate dynamics; evaporation; heat transport; precipitation; water cycle |
| تواريخ الأحداث: | Date Created: 20230613 Date Completed: 20230614 Latest Revision: 20231214 |
| رمز التحديث: | 20231215 |
| مُعرف محوري في PubMed: | PMC10288573 |
| DOI: | 10.1073/pnas.2217202120 |
| PMID: | 37310995 |
| قاعدة البيانات: | MEDLINE |
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