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WFRF:(Jansson Peter 1960 )
 

Sökning: WFRF:(Jansson Peter 1960 ) > An Assessment of Ge...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00004747naa a2200529 4500
001oai:DiVA.org:kth-317256
003SwePub
008220908s2022 | |||||||||||000 ||eng|
009oai:DiVA.org:su-204567
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3172562 URI
0247 a https://doi.org/10.3389/feart.2022.7346822 DOI
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-2045672 URI
040 a (SwePub)kthd (SwePub)su
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
1001 a Watts, Hannahu Stockholms universitet,Institutionen för naturgeografi4 aut0 (Swepub:su)hawa6729
2451 0a An Assessment of Geophysical Survey Techniques for Characterising the Subsurface Around Glacier Margins, and Recommendations for Future Applications
264 c 2022-03-28
264 1b Frontiers Media SA,c 2022
338 a print2 rdacarrier
500 a QC 20220908
520 a Geophysical surveys provide an efficient and non-invasive means of studying subsurface conditions in numerous sedimentary settings. In this study, we explore the application of three geophysical methods to a proglacial environment, namely ground penetrating radar (GPR), seismic refraction and multi-channel analysis of surface waves (MASW). We apply these geophysical methods to three glacial landforms with contrasting morphologies and sedimentary characteristics, and we use the various responses to assess the applicability and limitations of each method for these proglacial targets. Our analysis shows that GPR and seismic (refraction and MASW) techniques can provide spatially extensive information on the internal architecture and composition of moraines, but careful survey designs are required to optimise data quality in these geologically complex environments. Based on our findings, we define a number of recommendations and a potential workflow to guide future geophysical investigations in analogous settings. We recommend the initial use of GPR in future studies of proglacial environments to inform (a) seismic survey design and (b) the selection of seismic interpretation techniques. We show the benefits of using multiple GPR antenna frequencies (e.g., 25 and 100 MHz) to provide decimetre scale imaging in the near surface (e.g., < 15 m) while also enabling signal penetration to targets at up to ∼40 m depth (e.g., bedrock). This strategy helps to circumvent changes in radar signal penetration resulting from variations in substrate conductivity or abundant scatterers. Our study also demonstrates the importance of combining multiple geophysical methods together with ground-truthing through sedimentological observations to reduce ambiguity in interpretations. Implementing our recommendations will improve geophysical survey practice in the field of glacial geology and allow geophysical methods to play an increasing role in the interpretation of glacial landforms and sediments.
650 7a TEKNIK OCH TEKNOLOGIERx Samhällsbyggnadsteknikx Geoteknik0 (SwePub)201062 hsv//swe
650 7a ENGINEERING AND TECHNOLOGYx Civil Engineeringx Geotechnical Engineering0 (SwePub)201062 hsv//eng
650 7a NATURVETENSKAPx Geovetenskap och miljövetenskap0 (SwePub)1052 hsv//swe
650 7a NATURAL SCIENCESx Earth and Related Environmental Sciences0 (SwePub)1052 hsv//eng
653 a glacial geology
653 a ground penetrating radar
653 a multichannel analysis of surface waves
653 a near-surface geophysics
653 a proglacial environments
653 a seismic refraction
7001 a Booth, Adam D.4 aut
7001 a Reinardy, Benedict T. I.u Stockholms universitet,Institutionen för naturgeografi,Stockholm University, Department of Physical Geography, Stockholm, Sweden; Bolin Centre for Climate Research, Stockholm, Sweden4 aut0 (Swepub:su)brein
7001 a Killingbeck, Siobhan F.4 aut
7001 a Jansson, Peter,d 1960-u Stockholms universitet,Institutionen för naturgeografi4 aut0 (Swepub:su)pjans
7001 a Clark, Roger A.4 aut
7001 a Chandler, Benjamin M. P.u Stockholms universitet,Institutionen för naturgeografi,School of Geography, United Kingdom4 aut0 (Swepub:su)bech9644
7001 a Nesje, Atle4 aut
7102 a Stockholms universitetb Institutionen för naturgeografi4 org
7730 t Frontiers in Earth Scienced : Frontiers Media SAg 10q 10x 2296-6463
8564 u https://doi.org/10.3389/feart.2022.734682y Fulltext
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-317256
8564 8u https://doi.org/10.3389/feart.2022.734682
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-204567

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