Absolute airborne gravimetry with a cold atom sensor
Measuring gravity from an aircraft is essential in geodesy, geophysics and exploration. 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 measurem...
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ftccsdartic:oai:HAL:hal-02372495v1 2023-05-15T16:49:44+02:00 Absolute airborne gravimetry with a cold atom sensor Bidel, Yannick Zahzam, Nassim BRESSON, Alexandre Blanchard, Cédric Cadoret, Malo Olesen, Arne V. Forsberg, René ONERA - The French Aerospace Lab Châtillon ONERA-Université Paris Saclay (COmUE) 2019-11-20 https://hal.archives-ouvertes.fr/hal-02372495 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/arxiv/1910.06666 hal-02372495 https://hal.archives-ouvertes.fr/hal-02372495 ARXIV: 1910.06666 INSPIRE: 1759228 https://hal.archives-ouvertes.fr/hal-02372495 2019 [PHYS]Physics [physics] [PHYS.PHYS.PHYS-GEN-PH]Physics [physics]/Physics [physics]/General Physics [physics.gen-ph] [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] info:eu-repo/semantics/preprint Preprints, Working Papers, . 2019 ftccsdartic 2021-11-07T01:31:34Z Measuring gravity from an aircraft is essential in geodesy, geophysics and exploration. 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 a 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 mGal to -1.9 mGal. Report Iceland Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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Open Polar |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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ftccsdartic |
language |
English |
topic |
[PHYS]Physics [physics] [PHYS.PHYS.PHYS-GEN-PH]Physics [physics]/Physics [physics]/General Physics [physics.gen-ph] [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] |
spellingShingle |
[PHYS]Physics [physics] [PHYS.PHYS.PHYS-GEN-PH]Physics [physics]/Physics [physics]/General Physics [physics.gen-ph] [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] 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 |
[PHYS]Physics [physics] [PHYS.PHYS.PHYS-GEN-PH]Physics [physics]/Physics [physics]/General Physics [physics.gen-ph] [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] |
description |
Measuring gravity from an aircraft is essential in geodesy, geophysics and exploration. 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 a 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 mGal to -1.9 mGal. |
author2 |
ONERA - The French Aerospace Lab Châtillon ONERA-Université Paris Saclay (COmUE) |
format |
Report |
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 |
2019 |
url |
https://hal.archives-ouvertes.fr/hal-02372495 |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
https://hal.archives-ouvertes.fr/hal-02372495 2019 |
op_relation |
info:eu-repo/semantics/altIdentifier/arxiv/1910.06666 hal-02372495 https://hal.archives-ouvertes.fr/hal-02372495 ARXIV: 1910.06666 INSPIRE: 1759228 |
_version_ |
1766039931450294272 |