Progressing from 1D to 2-3D near surface airborne electromagnetic mapping: Development of MAiSIE, a Multi-Sensor, Airborne Sea Ice Explorer
The polar oceans’ sea ice cover is an unconventional and challenging geophysical target to map. Current state of ractice helicopter-electromagnetic (HEM) ice thickness apping is limited to 1D interpretation due to common rocedures and systems that are mainly sensitive to layered tructures. We presen...
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SOC EXPLORATION GEOPHYSICISTS
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ftawi:oai:epic.awi.de:25161 2024-09-15T18:34:35+00:00 Progressing from 1D to 2-3D near surface airborne electromagnetic mapping: Development of MAiSIE, a Multi-Sensor, Airborne Sea Ice Explorer Pfaffhuber, Andreas Hendricks, Stefan Kvistedal, Yme 2012-07 application/pdf https://epic.awi.de/id/eprint/25161/ https://epic.awi.de/id/eprint/25161/1/Geopyhsics_MAiSIE.pdf https://hdl.handle.net/10013/epic.40501 https://hdl.handle.net/10013/epic.40501.d001 unknown SOC EXPLORATION GEOPHYSICISTS https://epic.awi.de/id/eprint/25161/1/Geopyhsics_MAiSIE.pdf https://hdl.handle.net/10013/epic.40501.d001 Pfaffhuber, A. , Hendricks, S. orcid:0000-0002-1412-3146 and Kvistedal, Y. (2012) Progressing from 1D to 2-3D near surface airborne electromagnetic mapping: Development of MAiSIE, a Multi-Sensor, Airborne Sea Ice Explorer , Geophysics, 77 (4), WB109-WB117 . doi:10.1190/geo2011-0375.1 <https://doi.org/10.1190/%E2%80%8Bgeo2011-0375.1> , hdl:10013/epic.40501 EPIC3Geophysics, SOC EXPLORATION GEOPHYSICISTS, 77(4), pp. WB109-WB117, ISSN: 0016-8033 Article peerRev 2012 ftawi https://doi.org/10.1190/geo2011-0375.1 2024-06-24T04:03:41Z The polar oceans’ sea ice cover is an unconventional and challenging geophysical target to map. Current state of ractice helicopter-electromagnetic (HEM) ice thickness apping is limited to 1D interpretation due to common rocedures and systems that are mainly sensitive to layered tructures. We present a new generation Multi-sensor, irborne Sea Ice Explorer (MAiSIE) to overcome these imitations. As the actual sea ice structure is 3D and in parts heterogeneous, errors up to 50% are observed due to the common 1D approximation. By virtue of 3D finite element modeling, we find that more than one frequency is needed, ideally in the range 1 – 5 kHz, to improve thickness estimates of grounded pressure ridges, a common 3D sea ice structure. With MAiSIE we present a new electromagnetic (EM) concept based on one multi frequency transmitter loop and a three component receiver coil triplet, with active digital bucking (no bucking coil). The comparably small weight of the EM components frees enough additional payload to include three laser devices including a line scanner and high accuracy INS/dGPS. Integrating the high resolution 3D ice surface topography from the laser scanner with the EM data at frequencies from 600 Hz to 10 kHz, expressed as normalized secondary fields in x, y, and z direction, increases the accuracy of HEM derived pressure ridge geometry significantly. Article in Journal/Newspaper Sea ice Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) GEOPHYSICS 77 4 WB109 WB117 |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
The polar oceans’ sea ice cover is an unconventional and challenging geophysical target to map. Current state of ractice helicopter-electromagnetic (HEM) ice thickness apping is limited to 1D interpretation due to common rocedures and systems that are mainly sensitive to layered tructures. We present a new generation Multi-sensor, irborne Sea Ice Explorer (MAiSIE) to overcome these imitations. As the actual sea ice structure is 3D and in parts heterogeneous, errors up to 50% are observed due to the common 1D approximation. By virtue of 3D finite element modeling, we find that more than one frequency is needed, ideally in the range 1 – 5 kHz, to improve thickness estimates of grounded pressure ridges, a common 3D sea ice structure. With MAiSIE we present a new electromagnetic (EM) concept based on one multi frequency transmitter loop and a three component receiver coil triplet, with active digital bucking (no bucking coil). The comparably small weight of the EM components frees enough additional payload to include three laser devices including a line scanner and high accuracy INS/dGPS. Integrating the high resolution 3D ice surface topography from the laser scanner with the EM data at frequencies from 600 Hz to 10 kHz, expressed as normalized secondary fields in x, y, and z direction, increases the accuracy of HEM derived pressure ridge geometry significantly. |
format |
Article in Journal/Newspaper |
author |
Pfaffhuber, Andreas Hendricks, Stefan Kvistedal, Yme |
spellingShingle |
Pfaffhuber, Andreas Hendricks, Stefan Kvistedal, Yme Progressing from 1D to 2-3D near surface airborne electromagnetic mapping: Development of MAiSIE, a Multi-Sensor, Airborne Sea Ice Explorer |
author_facet |
Pfaffhuber, Andreas Hendricks, Stefan Kvistedal, Yme |
author_sort |
Pfaffhuber, Andreas |
title |
Progressing from 1D to 2-3D near surface airborne electromagnetic mapping: Development of MAiSIE, a Multi-Sensor, Airborne Sea Ice Explorer |
title_short |
Progressing from 1D to 2-3D near surface airborne electromagnetic mapping: Development of MAiSIE, a Multi-Sensor, Airborne Sea Ice Explorer |
title_full |
Progressing from 1D to 2-3D near surface airborne electromagnetic mapping: Development of MAiSIE, a Multi-Sensor, Airborne Sea Ice Explorer |
title_fullStr |
Progressing from 1D to 2-3D near surface airborne electromagnetic mapping: Development of MAiSIE, a Multi-Sensor, Airborne Sea Ice Explorer |
title_full_unstemmed |
Progressing from 1D to 2-3D near surface airborne electromagnetic mapping: Development of MAiSIE, a Multi-Sensor, Airborne Sea Ice Explorer |
title_sort |
progressing from 1d to 2-3d near surface airborne electromagnetic mapping: development of maisie, a multi-sensor, airborne sea ice explorer |
publisher |
SOC EXPLORATION GEOPHYSICISTS |
publishDate |
2012 |
url |
https://epic.awi.de/id/eprint/25161/ https://epic.awi.de/id/eprint/25161/1/Geopyhsics_MAiSIE.pdf https://hdl.handle.net/10013/epic.40501 https://hdl.handle.net/10013/epic.40501.d001 |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
EPIC3Geophysics, SOC EXPLORATION GEOPHYSICISTS, 77(4), pp. WB109-WB117, ISSN: 0016-8033 |
op_relation |
https://epic.awi.de/id/eprint/25161/1/Geopyhsics_MAiSIE.pdf https://hdl.handle.net/10013/epic.40501.d001 Pfaffhuber, A. , Hendricks, S. orcid:0000-0002-1412-3146 and Kvistedal, Y. (2012) Progressing from 1D to 2-3D near surface airborne electromagnetic mapping: Development of MAiSIE, a Multi-Sensor, Airborne Sea Ice Explorer , Geophysics, 77 (4), WB109-WB117 . doi:10.1190/geo2011-0375.1 <https://doi.org/10.1190/%E2%80%8Bgeo2011-0375.1> , hdl:10013/epic.40501 |
op_doi |
https://doi.org/10.1190/geo2011-0375.1 |
container_title |
GEOPHYSICS |
container_volume |
77 |
container_issue |
4 |
container_start_page |
WB109 |
op_container_end_page |
WB117 |
_version_ |
1810476488248524800 |