Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1073/pnas.1908198116 |
A round Earth for climate models | |
Prather, Michael J.; Hsu, Juno C. | |
2019 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
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ISSN | 0027-8424 |
出版年 | 2019 |
卷号 | 116期号:39页码:19330-19335 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Sunlight drives the Earth's weather, climate, chemistry, and biosphere. Recent efforts to improve solar heating codes in climate models focused on more accurate treatment of the absorption spectrum or fractional clouds. A mostly forgotten assumption in climate models is that of a flat Earth atmosphere. Spherical atmospheres intercept 2.5 W.m(-2) more sunlight and heat the climate by an additional 1.5 W.m(-2) globally. Such a systematic shift, being comparable to the radiative forcing change from preindustrial to present, is likely to produce a discernible climate shift that would alter a model's skill in simulating current climate. Regional heating errors, particularly at high latitudes, are several times larger. Unlike flat atmospheres, constituents in a spherical atmosphere, such as clouds and aerosols, alter the total amount of energy received by the Earth. To calculate the net cooling of aerosols in a spherical framework, one must count the increases in both incident and reflected sunlight, thus reducing the aerosol effect by 10 to 14% relative to using just the increase in reflected. Simple fixes to the current flat Earth climate models can correct much of this oversight, although some inconsistencies will remain. |
英文关键词 | solar radiation spherical atmospheres climate modeling |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000487532900025 |
WOS关键词 | MULTIPLE-SCATTERING ; PHOTOLYSIS RATES ; SOLAR-RADIATION ; CHEMISTRY ; MASS ; SIMULATION ; ATMOSPHERE ; AEROSOL |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
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/205182 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA 92697 USA |
推荐引用方式 GB/T 7714 | Prather, Michael J.,Hsu, Juno C.. A round Earth for climate models[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2019,116(39):19330-19335. |
APA | Prather, Michael J.,&Hsu, Juno C..(2019).A round Earth for climate models.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,116(39),19330-19335. |
MLA | Prather, Michael J.,et al."A round Earth for climate models".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 116.39(2019):19330-19335. |
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