Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1088/0004-637X/744/2/188 |
RECONSTRUCTING THE PHOTOMETRIC LIGHT CURVES OF EARTH AS A PLANET ALONG ITS HISTORY | |
Sanroma, E.1,2; Palle, E.1,2 | |
通讯作者 | Sanroma, E. |
来源期刊 | ASTROPHYSICAL JOURNAL
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ISSN | 0004-637X |
出版年 | 2012 |
卷号 | 744期号:2 |
英文摘要 | By utilizing satellite-based estimations of the distribution of clouds, we have studied Earth’s large-scale cloudiness behavior according to latitude and surface types (ice, water, vegetation, and desert). These empirical relationships are used here to reconstruct the possible cloud distribution of historical epochs of Earth’s history such as the Late Cretaceous (90 Ma ago), the Late Triassic (230 Ma ago), the Mississippian (340 Ma ago), and the Late Cambrian (500 Ma ago), when the landmass distributions were different from today’s. With this information, we have been able to simulate the globally integrated photometric variability of the planet at these epochs. We find that our simple model reproduces well the observed cloud distribution and albedo variability of the modern Earth. Moreover, the model suggests that the photometric variability of the Earth was probably much larger in past epochs. This enhanced photometric variability could improve the chances for the difficult determination of the rotational period and the identification of continental landmasses for a distant planets. |
英文关键词 | astrobiology atmospheric effects Earth planets and satellites: atmospheres planets and satellites: general planets and satellites: surfaces |
类型 | Article |
语种 | 英语 |
国家 | Spain |
收录类别 | SCI-E |
WOS记录号 | WOS:000298666400107 |
WOS关键词 | DISK-AVERAGED SPECTRA ; VEGETATION SIGNATURE ; EXTRASOLAR PLANETS ; CLOUD FEEDBACK ; ALBEDO ; MODEL ; DETECTABILITY ; VARIABILITY ; ATMOSPHERE ; EVOLUTION |
WOS类目 | Astronomy & Astrophysics |
WOS研究方向 | Astronomy & Astrophysics |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/171394 |
作者单位 | 1.Inst Astrofis Canarias, E-38200 San Cristobal la Laguna, Spain; 2.Univ La Laguna, Dept Astrofis, E-38207 San Cristobal la Laguna, Spain |
推荐引用方式 GB/T 7714 | Sanroma, E.,Palle, E.. RECONSTRUCTING THE PHOTOMETRIC LIGHT CURVES OF EARTH AS A PLANET ALONG ITS HISTORY[J],2012,744(2). |
APA | Sanroma, E.,&Palle, E..(2012).RECONSTRUCTING THE PHOTOMETRIC LIGHT CURVES OF EARTH AS A PLANET ALONG ITS HISTORY.ASTROPHYSICAL JOURNAL,744(2). |
MLA | Sanroma, E.,et al."RECONSTRUCTING THE PHOTOMETRIC LIGHT CURVES OF EARTH AS A PLANET ALONG ITS HISTORY".ASTROPHYSICAL JOURNAL 744.2(2012). |
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