Absolute airborne gravimetry with a cold atom sensor
International audience Measuring gravity from an aircraft is essential in geodesy, geophysics and exploration. It fills a gap between satellite techniques which have a low spatial resolution and traditional ground measurements which can only be performed on ground in accessible areas. Today, only re...
Published in: | Journal of Geodesy |
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Language: | English |
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2020
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Online Access: | https://hal.science/hal-02350497 https://hal.science/hal-02350497v2/document https://hal.science/hal-02350497v2/file/DPHY19094.1582878382_postprint.pdf https://doi.org/10.1007/s00190-020-01350-2 |
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ftuniparissaclay:oai:HAL:hal-02350497v2 2024-09-15T18:14:05+00:00 Absolute airborne gravimetry with a cold atom sensor Bidel, Yannick Zahzam, Nassim Bresson, Alexandre Blanchard, Cédric Cadoret, Malo Olesen, Arne V. Forsberg, René DPHY, ONERA, Université Paris Saclay (COmUE) Palaiseau ONERA-Université Paris Saclay (COmUE) Laboratoire commun de métrologie LNE-CNAM (LCM-CNAM) Laboratoire National de Métrologie et d'Essais Trappes (LNE )-Conservatoire National des Arts et Métiers CNAM (CNAM) Danmarks Tekniske Universitet = Technical University of Denmark (DTU) 2020 https://hal.science/hal-02350497 https://hal.science/hal-02350497v2/document https://hal.science/hal-02350497v2/file/DPHY19094.1582878382_postprint.pdf https://doi.org/10.1007/s00190-020-01350-2 en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s00190-020-01350-2 hal-02350497 https://hal.science/hal-02350497 https://hal.science/hal-02350497v2/document https://hal.science/hal-02350497v2/file/DPHY19094.1582878382_postprint.pdf doi:10.1007/s00190-020-01350-2 info:eu-repo/semantics/OpenAccess ISSN: 0949-7714 Journal of Geodesy https://hal.science/hal-02350497 Journal of Geodesy, 2020, 94 (2), pp.20. ⟨10.1007/s00190-020-01350-2⟩ https://link.springer.com/article/10.1007%2Fs00190-020-01350-2 GRAVIMETER ATOM INTERFEROMETRY AIRBORNE ABSOLUTE ABSOLUE GRAVIMETRE AEROPORTEE INTERFEROMETRIE ATOMIQUE [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] info:eu-repo/semantics/article Journal articles 2020 ftuniparissaclay https://doi.org/10.1007/s00190-020-01350-2 2024-07-25T23:36:26Z International audience Measuring gravity from an aircraft is essential in geodesy, geophysics and exploration. It fills a gap between satellite techniques which have a low spatial resolution and traditional ground measurements which can only be performed on ground in accessible areas. Today, only relative sensors are available for airborne gravimetry. This is a major drawback because of the calibration and drift estimation procedures which lead to important operational constraints and measurement errors. Here, we report an absolute airborne gravimeter based on atom interferometry. This instrument has been first tested on a motion simulator leading to gravity measurements noise of 0.3 mGal for 75 s filtering time constant. Then, we realized an airborne campaign across Iceland in April 2017. From repeated line and crossing points, we obtain gravity measurements with an estimated error between 1.7 and 3.9 mGal. The airborne measurements have also been compared to upward continued ground gravity data and show differences with a standard deviation ranging from 3.3 to 6.2 mGal and a mean value ranging from − 0.7 to − 1.9 mGal. Article in Journal/Newspaper Iceland Archives ouvertes de Paris-Saclay Journal of Geodesy 94 2 |
institution |
Open Polar |
collection |
Archives ouvertes de Paris-Saclay |
op_collection_id |
ftuniparissaclay |
language |
English |
topic |
GRAVIMETER ATOM INTERFEROMETRY AIRBORNE ABSOLUTE ABSOLUE GRAVIMETRE AEROPORTEE INTERFEROMETRIE ATOMIQUE [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] |
spellingShingle |
GRAVIMETER ATOM INTERFEROMETRY AIRBORNE ABSOLUTE ABSOLUE GRAVIMETRE AEROPORTEE INTERFEROMETRIE ATOMIQUE [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] Bidel, Yannick Zahzam, Nassim Bresson, Alexandre Blanchard, Cédric Cadoret, Malo Olesen, Arne V. Forsberg, René Absolute airborne gravimetry with a cold atom sensor |
topic_facet |
GRAVIMETER ATOM INTERFEROMETRY AIRBORNE ABSOLUTE ABSOLUE GRAVIMETRE AEROPORTEE INTERFEROMETRIE ATOMIQUE [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] |
description |
International audience Measuring gravity from an aircraft is essential in geodesy, geophysics and exploration. It fills a gap between satellite techniques which have a low spatial resolution and traditional ground measurements which can only be performed on ground in accessible areas. Today, only relative sensors are available for airborne gravimetry. This is a major drawback because of the calibration and drift estimation procedures which lead to important operational constraints and measurement errors. Here, we report an absolute airborne gravimeter based on atom interferometry. This instrument has been first tested on a motion simulator leading to gravity measurements noise of 0.3 mGal for 75 s filtering time constant. Then, we realized an airborne campaign across Iceland in April 2017. From repeated line and crossing points, we obtain gravity measurements with an estimated error between 1.7 and 3.9 mGal. The airborne measurements have also been compared to upward continued ground gravity data and show differences with a standard deviation ranging from 3.3 to 6.2 mGal and a mean value ranging from − 0.7 to − 1.9 mGal. |
author2 |
DPHY, ONERA, Université Paris Saclay (COmUE) Palaiseau ONERA-Université Paris Saclay (COmUE) Laboratoire commun de métrologie LNE-CNAM (LCM-CNAM) Laboratoire National de Métrologie et d'Essais Trappes (LNE )-Conservatoire National des Arts et Métiers CNAM (CNAM) Danmarks Tekniske Universitet = Technical University of Denmark (DTU) |
format |
Article in Journal/Newspaper |
author |
Bidel, Yannick Zahzam, Nassim Bresson, Alexandre Blanchard, Cédric Cadoret, Malo Olesen, Arne V. Forsberg, René |
author_facet |
Bidel, Yannick Zahzam, Nassim Bresson, Alexandre Blanchard, Cédric Cadoret, Malo Olesen, Arne V. Forsberg, René |
author_sort |
Bidel, Yannick |
title |
Absolute airborne gravimetry with a cold atom sensor |
title_short |
Absolute airborne gravimetry with a cold atom sensor |
title_full |
Absolute airborne gravimetry with a cold atom sensor |
title_fullStr |
Absolute airborne gravimetry with a cold atom sensor |
title_full_unstemmed |
Absolute airborne gravimetry with a cold atom sensor |
title_sort |
absolute airborne gravimetry with a cold atom sensor |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal.science/hal-02350497 https://hal.science/hal-02350497v2/document https://hal.science/hal-02350497v2/file/DPHY19094.1582878382_postprint.pdf https://doi.org/10.1007/s00190-020-01350-2 |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
ISSN: 0949-7714 Journal of Geodesy https://hal.science/hal-02350497 Journal of Geodesy, 2020, 94 (2), pp.20. ⟨10.1007/s00190-020-01350-2⟩ https://link.springer.com/article/10.1007%2Fs00190-020-01350-2 |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00190-020-01350-2 hal-02350497 https://hal.science/hal-02350497 https://hal.science/hal-02350497v2/document https://hal.science/hal-02350497v2/file/DPHY19094.1582878382_postprint.pdf doi:10.1007/s00190-020-01350-2 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1007/s00190-020-01350-2 |
container_title |
Journal of Geodesy |
container_volume |
94 |
container_issue |
2 |
_version_ |
1810451868765126656 |