Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/4044
DC Field | Value | Language |
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dc.contributor.authorall | Urbini, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia | en |
dc.contributor.authorall | Frezzotti, M.; ENEA, Climatic Project, Via Anguillarese 301, 00123 Roma - Italy | en |
dc.contributor.authorall | Gandolfi, S.; DISTART, Univ. Bologna, V.le Risorgimento 2, 40086 Bologna - Italy | en |
dc.contributor.authorall | Vittuari, L.; DISTART, Univ. Bologna, V.le Risorgimento 2, 40086 Bologna - Italy | en |
dc.date.accessioned | 2008-09-10T06:14:13Z | en |
dc.date.available | 2008-09-10T06:14:13Z | en |
dc.date.issued | 2008-07 | en |
dc.identifier.uri | http://hdl.handle.net/2122/4044 | en |
dc.description.abstract | Ice divide-dome migration is a key parameter in mass balance studies and in the interpretation of ice cores. The stability of the dome and position of the ice divide must be known to accurately interpret ice core records and to complete mass balance studies. Models of depth-age relationships for deep ice cores are sensitive to migration of the dome position (Anandakrishnan et al., 1994). The evolution of an ice divide is driven by the accumulation-rate history, its spatial pattern and conditions at ice-sheet boundaries (e.g. Frezzotti et al., 2004; Hindmarsh, 1996; Nereson et al., 1998). Ice divide migration is also important in determining the input parameter of large Antarctic drainage basins. Due to the very low slope (less than a decimetre per km) of East Antarctic domes and to surface morphology (e.g. sastrugi), it is very difficult to determine the summit point of a dome and its migration in time. In 2004 a new ice coring project, TALDICE (Talos Dome Ice Core Project), started at TD to recover 1550 m of ice spanning the last 120 000 years (Frezzotti et al., 2004). This paper discusses preliminary findings on the present and past morphology of Talos Dome based on detailed snow accumulation data, radar-derived isochrons and ice velocity measurements in the last 10 years. | en |
dc.language.iso | English | en |
dc.publisher.name | Terra Antartica Publication | en |
dc.relation.ispartof | Terra Antartica Reports | en |
dc.relation.ispartofseries | / 14 (2008) | en |
dc.subject | Ice Dome | en |
dc.subject | GPR | en |
dc.subject | GPS | en |
dc.subject | Mass Balance | en |
dc.title | TALOS Dome Migration: Preliminary Results | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | 51-54 | en |
dc.subject.INGV | 02. Cryosphere::02.02. Glaciers::02.02.05. Ice dynamics | en |
dc.subject.INGV | 02. Cryosphere::02.02. Glaciers::02.02.06. Mass balance | en |
dc.relation.references | Anandakrishnan S., R.B. Alley & E.D. Waddington, 1994. Sensitivity of the ice-divide position in Greenland to climate change. Geophys. Res. Lett., 21(6) 441-444. Frezzotti M., G. Bitelli, P. de Michelis, A. Deponti, A. Forieri, S. Gandolfi, V. Maggi, F. Mancini, F. Rémy, I.E. Tabacco, S. Urbini, L. Vittuari & A. Zirizzotti, 2004. Geophysical survey at Talos Dôme (East Antarctica): The search for a new deep-drilling site. Ann. Glaciol., 39, 423-432. Frezzotti M., S. Gandolfi & S. Urbini, 2002. Snow megadunes in Antarctica: sedimentary structure and genesis. J. Geoph. Res., 107(D18), 4344, 10.1029/2001JD000673, 1-12. Frezzotti M., M. Pourchet, O. Flora, S. Gandolfi, M. Gay, S. Urbini, C. Vincent, S. Becagli, R. Gragnani, M. Proposito, M. Severi, R. Traversi, R. Udisti & M. Fily, 2005 Spatial and temporal variability of snow accumulation in East Antarctica from traverse data. J. Glaciol., 51(207), 113-124. Hindmarsh R.C.A., 1996. Stochastic perturbation of divide position. Ann. Glaciol., 23, 94-104. Magand O., M. Frezzotti, M. Pourchet, B. Stenni, L. Genoni & M. Fily, 2004. Climate variability along latitudinal and longitudinal transects in East Antarctica. Ann. Glaciol., 39, 351-358. Nereson N.A, Raymond, C.F., Waddington, E.D. & R.W. Jacobel, 1998. Migration of the Siple Dome ice divide, West Antarctica. J. Glaciol., 44(148), 643-652. Richardson C., E. Aarholt, S.-E. Hamran, P. Holmlund & E. Isaksson, 1997. Spatial snow distribution of snow in western Dronning Maud Land, East Antarctica, mapped by a ground based snow radar. J. Geophys. Res., 102(B9), 20,343-20,353. Stenni B., Proposito M., Gragnani R., Flora O., Jouzel J., Falourd S. & Frezzotti M., 2002. Eight centuries of volcanic signal and climate change at Talos Dome (East Antarctica). J. Geoph. Res., D9, 107, 10.1029/2000JD000317, 1-14. Vaughan D.G., H.J.F. Corr, C.S.M. Doake & E.D. Waddington, 1999. Distortion of isochronous layers in ice revealed by ground-penetrating radar, Nature, 398 (6725), 323-326. | en |
dc.description.obiettivoSpecifico | 3.8. Geofisica per l'ambiente | en |
dc.description.journalType | N/A or not JCR | en |
dc.description.fulltext | open | en |
dc.contributor.author | Urbini, S. | en |
dc.contributor.author | Frezzotti, M. | en |
dc.contributor.author | Gandolfi, S. | en |
dc.contributor.author | Vittuari, L. | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia | en |
dc.contributor.department | ENEA, Climatic Project, Via Anguillarese 301, 00123 Roma - Italy | en |
dc.contributor.department | DISTART, Univ. Bologna, V.le Risorgimento 2, 40086 Bologna - Italy | en |
dc.contributor.department | DISTART, Univ. Bologna, V.le Risorgimento 2, 40086 Bologna - Italy | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia | - |
crisitem.author.dept | ENEA-CRE, Casaccia, Rome, Italy | - |
crisitem.author.dept | Distart Bologna | - |
crisitem.author.dept | DISTART, Univ. Bologna, V.le Risorgimento 2, 40086 Bologna - Italy | - |
crisitem.author.orcid | 0000-0002-8053-4197 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 02. Cryosphere | - |
crisitem.classification.parent | 02. Cryosphere | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
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