Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL074069 |
A subsurface depocenter in the South Polar Layered Deposits of Mars | |
Whitten, J. L.; Campbell, B. A.; Morgan, G. A. | |
2017-08-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:16 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The South Polar Layered Deposits (SPLD) are one of the largest water ice reservoirs on Mars, and their accumulation is driven by variations in the climate primarily controlled by orbital forcings. Patterns of subsurface layering in the SPLD provide important information about past atmospheric dust content, periods of substantial erosion, and variations in local or regional deposition. Here we analyze the SPLD using SHAllow RADar (SHARAD) sounder data to gain a unique perspective on the interior structure of the deposits and to determine what subsurface layers indicate about the preserved climate history. SHARAD data reveal a major deviation from the gently domical layering typical of the SPLD: a subsurface elongate dome. The dome most likely formed due to variations in the accumulation of ice and snow across the cap, with a higher rate occurring in this region over a prolonged period. This SPLD depositional center provides an important marker of south polar climate patterns. |
英文关键词 | Mars South Polar Layered Deposits SHARAD depocenter Mars Reconnaissance Orbiter |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000410658800012 |
WOS关键词 | WATER ICE ; SOLID CO2 ; CAP ; RADAR ; STRATIGRAPHY ; EVOLUTION ; CLIMATE ; ALBEDO ; REGION |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/28215 |
专题 | 气候变化 |
作者单位 | Smithsonian Inst, Washington, DC 20560 USA |
推荐引用方式 GB/T 7714 | Whitten, J. L.,Campbell, B. A.,Morgan, G. A.. A subsurface depocenter in the South Polar Layered Deposits of Mars[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(16). |
APA | Whitten, J. L.,Campbell, B. A.,&Morgan, G. A..(2017).A subsurface depocenter in the South Polar Layered Deposits of Mars.GEOPHYSICAL RESEARCH LETTERS,44(16). |
MLA | Whitten, J. L.,et al."A subsurface depocenter in the South Polar Layered Deposits of Mars".GEOPHYSICAL RESEARCH LETTERS 44.16(2017). |
条目包含的文件 | 条目无相关文件。 |
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