Absolute airborne gravimetry with a cold atom sensor
International audience 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 c...
Main Authors: | , , , , , , |
---|---|
Other Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2020
|
Subjects: | |
Online Access: | https://hal.science/hal-02372495 |
id |
ftuniparissaclay:oai:HAL:hal-02372495v1 |
---|---|
record_format |
openpolar |
spelling |
ftuniparissaclay:oai:HAL:hal-02372495v1 2023-05-15T16:49:45+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) 2020 https://hal.science/hal-02372495 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/arxiv/1910.06666 hal-02372495 https://hal.science/hal-02372495 ARXIV: 1910.06666 INSPIRE: 1759228 J.Geod. https://hal.science/hal-02372495 J.Geod., 2020, 94, pp.20 [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/article Journal articles 2020 ftuniparissaclay 2023-03-16T21:40:52Z International audience 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. Article in Journal/Newspaper Iceland Archives ouvertes de Paris-Saclay |
institution |
Open Polar |
collection |
Archives ouvertes de Paris-Saclay |
op_collection_id |
ftuniparissaclay |
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 |
International audience 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 |
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-02372495 |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
J.Geod. https://hal.science/hal-02372495 J.Geod., 2020, 94, pp.20 |
op_relation |
info:eu-repo/semantics/altIdentifier/arxiv/1910.06666 hal-02372495 https://hal.science/hal-02372495 ARXIV: 1910.06666 INSPIRE: 1759228 |
_version_ |
1766039950300545024 |