Arid
DOI10.1088/0004-637X/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
ISSN0004-637X
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
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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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