Retrieval of lunar polar heat flow from Chang’E-2 microwave radiometer and Diviner observations
The internal heat flow related to the Moon’s composition, interior structure, and evolution history is not well-constrained and understood on a global scale. Up to now, only two in situ heat flow experiments, Apollo 15 and 17 were deployed nearly 50 years ago. The measured high values of heat flow m...
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ftdoajarticles:oai:doaj.org/article:c4220e504568478aad19c57a72b2d29c 2023-06-11T04:16:47+02:00 Retrieval of lunar polar heat flow from Chang’E-2 microwave radiometer and Diviner observations Guangfei Wei Xiongyao Li Hong Gan Yaolin Shi 2023-05-01T00:00:00Z https://doi.org/10.3389/fspas.2023.1179558 https://doaj.org/article/c4220e504568478aad19c57a72b2d29c EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/fspas.2023.1179558/full https://doaj.org/toc/2296-987X 2296-987X doi:10.3389/fspas.2023.1179558 https://doaj.org/article/c4220e504568478aad19c57a72b2d29c Frontiers in Astronomy and Space Sciences, Vol 10 (2023) Chang’E-2 microwave radiometer Diviner Moon pole heat flow Astronomy QB1-991 Geophysics. Cosmic physics QC801-809 article 2023 ftdoajarticles https://doi.org/10.3389/fspas.2023.1179558 2023-05-28T00:35:47Z The internal heat flow related to the Moon’s composition, interior structure, and evolution history is not well-constrained and understood on a global scale. Up to now, only two in situ heat flow experiments, Apollo 15 and 17 were deployed nearly 50 years ago. The measured high values of heat flow might be influenced by lateral heat at highland/mare boundaries and enhanced by heat production from radioactive elements enriched unit, and may also be disturbed by astronauts’ activities. In this study, we proposed a new method to retrieve heat flows at two permanently shadowed craters, Haworth and Shoemaker of the Moon’s south pole, from Chang’E-2 microwave radiometer data and Diviner observations. Our results show that the average heat flow is 4.9 ± 0.2 mW/m2. This provides a constraint for the bulk concentration of Thorium within the lunar south polar crust 656 ± 54 ppb, which helps us understand the Moon’s thermal evolution and differentiation. Article in Journal/Newspaper South pole Directory of Open Access Journals: DOAJ Articles South Pole Frontiers in Astronomy and Space Sciences 10 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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English |
topic |
Chang’E-2 microwave radiometer Diviner Moon pole heat flow Astronomy QB1-991 Geophysics. Cosmic physics QC801-809 |
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Chang’E-2 microwave radiometer Diviner Moon pole heat flow Astronomy QB1-991 Geophysics. Cosmic physics QC801-809 Guangfei Wei Xiongyao Li Hong Gan Yaolin Shi Retrieval of lunar polar heat flow from Chang’E-2 microwave radiometer and Diviner observations |
topic_facet |
Chang’E-2 microwave radiometer Diviner Moon pole heat flow Astronomy QB1-991 Geophysics. Cosmic physics QC801-809 |
description |
The internal heat flow related to the Moon’s composition, interior structure, and evolution history is not well-constrained and understood on a global scale. Up to now, only two in situ heat flow experiments, Apollo 15 and 17 were deployed nearly 50 years ago. The measured high values of heat flow might be influenced by lateral heat at highland/mare boundaries and enhanced by heat production from radioactive elements enriched unit, and may also be disturbed by astronauts’ activities. In this study, we proposed a new method to retrieve heat flows at two permanently shadowed craters, Haworth and Shoemaker of the Moon’s south pole, from Chang’E-2 microwave radiometer data and Diviner observations. Our results show that the average heat flow is 4.9 ± 0.2 mW/m2. This provides a constraint for the bulk concentration of Thorium within the lunar south polar crust 656 ± 54 ppb, which helps us understand the Moon’s thermal evolution and differentiation. |
format |
Article in Journal/Newspaper |
author |
Guangfei Wei Xiongyao Li Hong Gan Yaolin Shi |
author_facet |
Guangfei Wei Xiongyao Li Hong Gan Yaolin Shi |
author_sort |
Guangfei Wei |
title |
Retrieval of lunar polar heat flow from Chang’E-2 microwave radiometer and Diviner observations |
title_short |
Retrieval of lunar polar heat flow from Chang’E-2 microwave radiometer and Diviner observations |
title_full |
Retrieval of lunar polar heat flow from Chang’E-2 microwave radiometer and Diviner observations |
title_fullStr |
Retrieval of lunar polar heat flow from Chang’E-2 microwave radiometer and Diviner observations |
title_full_unstemmed |
Retrieval of lunar polar heat flow from Chang’E-2 microwave radiometer and Diviner observations |
title_sort |
retrieval of lunar polar heat flow from chang’e-2 microwave radiometer and diviner observations |
publisher |
Frontiers Media S.A. |
publishDate |
2023 |
url |
https://doi.org/10.3389/fspas.2023.1179558 https://doaj.org/article/c4220e504568478aad19c57a72b2d29c |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
Frontiers in Astronomy and Space Sciences, Vol 10 (2023) |
op_relation |
https://www.frontiersin.org/articles/10.3389/fspas.2023.1179558/full https://doaj.org/toc/2296-987X 2296-987X doi:10.3389/fspas.2023.1179558 https://doaj.org/article/c4220e504568478aad19c57a72b2d29c |
op_doi |
https://doi.org/10.3389/fspas.2023.1179558 |
container_title |
Frontiers in Astronomy and Space Sciences |
container_volume |
10 |
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1768375388475490304 |