High density coverage investigation of The Austre LovénBreen (Svalbard) using Ground Penetrating Radar
Albane Saintenoy
(1)
,
Jean-Michel Friedt
(2)
,
Florian Tolle
(3)
,
Eric Bernard
(3)
,
Dominique Laffly
(4)
,
Christelle Marlin
(1, 5)
,
Madeleine Griselin
(3)
1
IDES -
Interactions et dynamique des environnements de surface
2 FEMTO-ST - Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174)
3 ThéMA - Théoriser et modéliser pour aménager (UMR 6049)
4 GEODE - Géographie de l'environnement
5 GEOPS - Géosciences Paris Sud
2 FEMTO-ST - Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174)
3 ThéMA - Théoriser et modéliser pour aménager (UMR 6049)
4 GEODE - Géographie de l'environnement
5 GEOPS - Géosciences Paris Sud
Jean-Michel Friedt
- Fonction : Auteur
- PersonId : 756577
- ORCID : 0000-0003-4888-7133
Eric Bernard
- Fonction : Auteur
- PersonId : 11406
- IdHAL : eric-bernard
- ORCID : 0000-0003-2913-147X
- IdRef : 191817465
Madeleine Griselin
- Fonction : Auteur
- PersonId : 931205
Résumé
A three week field survey over April 2010 allowed for the acquisition of 120 Ground Penetrating Radar (GPR) profiles, adding to a 40 km long walk across an Arctic glacier. The profiles were acquired using a Mal°a equipment with 100 MHz antennas, walking slowly enough to record a 2.224 s trace every 30 cm on the average. Some acquisitions were repeated with 50 MHz or 200 MHz antenna to improve data quality. The GPR was coupled to a GPS system to position traces. Each profile has been manually edited using standard GPR data processing, to pick the reflection arrival time from the ice-bedrock interface. Traveltimes were converted to ice thickness using a velocity of 0.17 m/ns. Dual-frequency GPS mapping and snow coverage thickness were acquired during the same survey. Using interpolation methods, we derived the underlying bedrock topography and evaluated the ice volume.
Domaines
GéographieFormat du dépôt | Fichier |
---|---|
Type de dépôt | Communication dans un congrès |
Titre |
en
High density coverage investigation of The Austre LovénBreen (Svalbard) using Ground Penetrating Radar
|
Résumé |
en
A three week field survey over April 2010 allowed for the acquisition of 120 Ground Penetrating Radar (GPR) profiles, adding to a 40 km long walk across an Arctic glacier. The profiles were acquired using a Mal°a equipment with 100 MHz antennas, walking slowly enough to record a 2.224 s trace every 30 cm on the average. Some acquisitions were repeated with 50 MHz or 200 MHz antenna to improve data quality. The GPR was coupled to a GPS system to position traces. Each profile has been manually edited using standard GPR data processing, to pick the reflection arrival time from the ice-bedrock interface. Traveltimes were converted to ice thickness using a velocity of 0.17 m/ns. Dual-frequency GPS mapping and snow coverage thickness were acquired during the same survey. Using interpolation methods, we derived the underlying bedrock topography and evaluated the ice volume.
|
Auteur(s) |
Albane Saintenoy
1
, Jean-Michel Friedt
2
, Florian Tolle
3
, Eric Bernard
3
, Dominique Laffly
4
, Christelle Marlin
1, 5
, Madeleine Griselin
3
1
IDES -
Interactions et dynamique des environnements de surface
( 2090 )
- Dépt. des sciences de la terre Bâtiments 504 & 509 91405 ORSAY CEDEX
- France
2
FEMTO-ST -
Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174)
( 866 )
- 32 avenue de l'Observatoire 25044 BESANCON CEDEX
- France
3
ThéMA -
Théoriser et modéliser pour aménager (UMR 6049)
( 812 )
- 32 Rue Megevand 25030 BESANCON CEDEX
- France
4
GEODE -
Géographie de l'environnement
( 742 )
- 5 Allée Antonio Machado 31058 TOULOUSE CEDEX 1
- France
5
GEOPS -
Géosciences Paris Sud
( 265597 )
- Université Paris Sud, bâts. 504 & 510, 91405 ORSAY Cedex
- France
|
Vulgarisation |
Non
|
Comité de lecture |
Oui
|
Actes |
Non
|
Invité |
Non
|
Langue du document |
Anglais
|
Audience |
Internationale
|
Titre du congrès |
6th International Workshop on Advanced Ground Penetrating Radar
|
Date début congrès |
2011-06-24
|
Ville |
Aachen
|
Pays |
Allemagne
|
Commentaire |
COM
|
Domaine(s) |
|
Origine :
Fichiers produits par l'(les) auteur(s)
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