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...
Published in: | Frontiers in Astronomy and Space Sciences |
---|---|
Main Authors: | , , , |
Other Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Frontiers Media SA
2023
|
Subjects: | |
Online Access: | http://dx.doi.org/10.3389/fspas.2023.1179558 https://www.frontiersin.org/articles/10.3389/fspas.2023.1179558/full |
id |
crfrontiers:10.3389/fspas.2023.1179558 |
---|---|
record_format |
openpolar |
spelling |
crfrontiers:10.3389/fspas.2023.1179558 2024-06-23T07:56:50+00:00 Retrieval of lunar polar heat flow from Chang’E-2 microwave radiometer and Diviner observations Wei, Guangfei Li, Xiongyao Gan, Hong Shi, Yaolin National Key Research and Development Program of China National Natural Science Foundation of China 2023 http://dx.doi.org/10.3389/fspas.2023.1179558 https://www.frontiersin.org/articles/10.3389/fspas.2023.1179558/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Astronomy and Space Sciences volume 10 ISSN 2296-987X journal-article 2023 crfrontiers https://doi.org/10.3389/fspas.2023.1179558 2024-06-04T05:51:45Z 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/m 2 . 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 Frontiers (Publisher) South Pole Frontiers in Astronomy and Space Sciences 10 |
institution |
Open Polar |
collection |
Frontiers (Publisher) |
op_collection_id |
crfrontiers |
language |
unknown |
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/m 2 . 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. |
author2 |
National Key Research and Development Program of China National Natural Science Foundation of China |
format |
Article in Journal/Newspaper |
author |
Wei, Guangfei Li, Xiongyao Gan, Hong Shi, Yaolin |
spellingShingle |
Wei, Guangfei Li, Xiongyao Gan, Hong Shi, Yaolin Retrieval of lunar polar heat flow from Chang’E-2 microwave radiometer and Diviner observations |
author_facet |
Wei, Guangfei Li, Xiongyao Gan, Hong Shi, Yaolin |
author_sort |
Wei, Guangfei |
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 SA |
publishDate |
2023 |
url |
http://dx.doi.org/10.3389/fspas.2023.1179558 https://www.frontiersin.org/articles/10.3389/fspas.2023.1179558/full |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
Frontiers in Astronomy and Space Sciences volume 10 ISSN 2296-987X |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/fspas.2023.1179558 |
container_title |
Frontiers in Astronomy and Space Sciences |
container_volume |
10 |
_version_ |
1802650186345873408 |