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Articles de revues sur le sujet « Icecore »

Auteur : Grafiati

Publié le 9 mars 2023

Mis à jour le 31 juillet 2025

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1

Bush, Elizabeth. "Icecore: A Carl Hobbes Thriller (review)." Bulletin of the Center for Children's Books 61, no. 6 (2008): 270. http://dx.doi.org/10.1353/bcc.2008.0068.

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Siggaard-Andersen, Marie-Louise, Jørgen Peder Steffensen, and Hubertus Fischer. "Lithium in Greenland ice cores measured by ion chromatography." Annals of Glaciology 35 (2002): 243–49. http://dx.doi.org/10.3189/172756402781816483.

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AbstractIon chromatography (IC) is a widely used technique for analyzing ice cores for ions like Na+, NH4+, K+, Mg2+, Ca2+, F–, MSA–, Cl–, NO2– and SO42– that are present in polar ice cores at ppb level. By using sample preconcentration and an optimized separation technique, we have been able to detect Li+ in ice-core samples in concentrations as low as 0.0001 μeq kg–1 or 0.7 ppt by IC. During routine analysis of ions in ice cores, the lithium content has been evaluated and recorded. the IC technique used in these measurements and some exemplary IC data from the Greenland Icecore Project (GRIP

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Dahl-Jensen, Dorthe, Niels S. Gundestrup, Heinz Miller, et al. "The NorthGRIP deep drilling programme." Annals of Glaciology 35 (2002): 1–4. http://dx.doi.org/10.3189/172756402781817275.

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AbstractThe North Greenland Icecore Project (NorthGRIP) was initiated in 1995 as a joint international programme involving Denmark, Germany, Japan, Belgium, Sweden, Iceland, the U.S.A., France and Switzerland. the main goal was to obtain undisturbed high-resolution information about the Eemian climatic period (115–130 kyr BP). the records from the Greenland Icecore Project (GRIP) and Greenland Ice Sheet Project 2 (GISP2) in central Greenland are different and disturbed down in the ice covering this period. Internal radio-echo sounding layers show that NorthGRIP, placed 325 km north-northwest o

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Mathiesen, Joachim, Jesper Ferkinghoff-Borg, Mogens H. Jensen, et al. "Dynamics of crystal formation in the Greenland NorthGRIP ice core." Journal of Glaciology 50, no. 170 (2004): 325–28. http://dx.doi.org/10.3189/172756504781829873.

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AbstractThe North Greenland Icecore Project (NorthGRIP) palaeoclimatic information back to about 120 kyr BP. The size distributions of ice crystals in the upper 880 m of the NorthGRIP ice core, which cover a time-span of approximately 5300 years, have been obtained previously. The distributions evolve towards a universal curve, indicating a common underlying physical process in the formation of crystals. We identify this process as an interplay between fragmentation of the crystals and diffusion of their grain boundaries. The process is described by a two-parameter differential equation to whi

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Thomas, Elizabeth R., Robert Mulvaney, and Eric W. Wolff. "A change in seasonality in Greenland during a Dansgaard–Oeschger warming." Annals of Glaciology 48 (2008): 19–24. http://dx.doi.org/10.3189/172756408784700590.

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AbstractA new sub-seasonal chemical record is presented from the North Greenland Icecore Project (NorthGRIP) ice core during the onset of one of the longest and strongest interstadials of the last glacial period, Dansgaard–Oeschger event 8 (approximately 38 000 years ago). This is the first time that a record of such resolution has been achieved over several metres of deep glacial ice and provides a unique opportunity for using additional parameters to carry out accurate dating using annual-layer counting. The very high-resolution chemical data were used to assess the phasing of various ions a

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Hvidberg, Christine Schøtt, Kristian Keller, and Niels S. Gundestrup. "Mass balance and ice flow along the north-northwest ridge of the Greenland ice sheet at NorthGRIP." Annals of Glaciology 35 (2002): 521–26. http://dx.doi.org/10.3189/172756402781816500.

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AbstractThe North Greenland Icecore Project (NorthGRIP) deep drilling site (75˚05’47’’N, 42˚19’42’’ W) is located at the north-northwest ridge of the Greenland ice sheet, 320 km from Summit. A strain net has been established around the NorthGRIP site and surveyed with global positioning system. Our results show that ice flows with a horizontal surface velocity of 1.329 ±0.015ma–1 along the ridge. Estimated principal surface strain rates at NorthGRIP are and in the directions along and transverse to the north-northwest ridge, respectively, i.e. ice is compressed along the ridge but stretched tr

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Svensson, Anders, Karen G. Schmidt, Dorthe Dahl-Jensen, et al. "Properties of ice crystals in NorthGRIP late- to middle-Holocene ice." Annals of Glaciology 37 (2003): 113–18. http://dx.doi.org/10.3189/172756403781815636.

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AbstractDetailed measurements of crystal outlines and fabrics have been performed on 35 000 crystals in fifteen 10 × 20 cm2 vertical thin sections from the North Greenland Icecore Project (NorthGRIP) ice core, evenly distributed in the depth interval 115–880m. The crystals exhibit important changes over this period. As the ice gets older the mean crystal area increases towards a constant value, the shape of the crystals becomes increasingly irregular, and the area distribution of crystals develops from a single log-normal distribution into a bimodal lognormal distribution. The c-axis fabric of

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Hvidberg, Christine Schøtt, Jørgen Peder Steffensen, Henrik B. Clausen, Hitoshi Shoji, and Joseph Kipfstuhl. "The NorthGRIP ice-core logging procedure: description and evaluation." Annals of Glaciology 35 (2002): 5–8. http://dx.doi.org/10.3189/172756402781817293.

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AbstractThe ice-core logging procedure used to log the North Greenland Icecore Project (NorthGRIP) ice cores is described. the existence of two deep ice cores, NorthGRIP 1and 2, drilled 25 mapart, allows an independent evaluation of the procedure. the logged depths of the NorthGRIP 1 and 2 cores deviate from the length of the unwound drill cable corrected for elongation of the cable when hanging in the hole, by 1.5‰ and 50.5‰ at depths of 1371 and 2931 m, respectively. Differences between logged depths of identified layers found in both cores are studied in the depth interval where they overla

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Dahl-Jensen, Dorthe, Niels Gundestrup, S. Prasad Gogineni, and Heinz Miller. "Basal melt at NorthGRIP modeled from borehole, ice-core and radio-echo sounder observations." Annals of Glaciology 37 (2003): 207–12. http://dx.doi.org/10.3189/172756403781815492.

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AbstractFrom temperature measurements down through the 3001 m deep borehole at the North Greenland Icecore Project (NorthGRIP) drill site, it is now clear that the ice at the base, 3080 m below the surface, is at the pressure-melting point. This is supported by the measurements on the ice core where the annual-layer thicknesses show there is bottom melting at the site and upstream from the borehole. Surface velocity measurements, internal radio-echo layers, borehole and ice-core data are used to constrain a time-dependent flow model simulating flow along the north-northwest-trending ice-ridge

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Svensson, Anders, Pauli Baadsager, Asbjørn Persson, Christine Schøtt Hvidberg, and Marie-Louise Siggaard-Andersen. "Seasonal variability in ice crystal properties at NorthGRIP: a case study around 301 m depth." Annals of Glaciology 37 (2003): 119–22. http://dx.doi.org/10.3189/172756403781815582.

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AbstractThe aim of this case study is to quantify the seasonal variability in crystal properties and to discuss the reason for the variability. A continuous 1.10 m long vertical thin-section profile covering approximately five annual cycles has been obtained from the North Greenland Icecore Project (NorthGRIP) ice core at around 301 m depth. The crystal outline and the c-axis orientation of more than 13000 crystals in the profile have been measured on a new Australian automated ice-crystal analyzer. In 2.5 cm resolution we observe a strong seasonal variability in crystal areas of >30%deviat

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Gagliardini, Olivier, Gaël Durand, and Yun Wang. "Grain area as a statistical weight for polycrystal constituents." Journal of Glaciology 50, no. 168 (2004): 87–95. http://dx.doi.org/10.3189/172756504781830349.

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AbstractBy using recently developed automatic instruments for fabric and texture measurements on ice, both the c-axis orientation and area of the individual crystals can be determined. Each grain can then be associated with its volume fraction, defined as a function of its measured cross-sectional area, to describe the microstructure of a poly-crystal. The relevance of this approach is studied using a three-dimensional microstructure obtained from the Potts model. In particular, the area weighting is compared to the classical implicit equal weighting used by glaciologists, which assumes that a

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Grinsted, Aslak, and Dorthe Dahl-Jensen. "A Monte Carlo-tuned model of the flow in the NorthGRIP area." Annals of Glaciology 35 (2002): 527–30. http://dx.doi.org/10.3189/172756402781817130.

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AbstractThe North Greenland Icecore Project (NorthGRIP) drill site was chosen in order to obtain a good Eemian record. At the present depth, 3001 m, the Eemian interstadial has yet to be seen. Clearly the flow in this area is poorly understood and needs further investigation. After a review of specific features of the bottom topography, it is believed that the geology changes along the flowline. In order to investigate whether this explains the observed age–depth relationship at NorthGRIP, the inverse Monte Carlo method has been applied to a simple model. the inversion reveals that the main re

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Rempel, Alan W., and J. S. Wettlaufer. "Isotopic diffusion in polycrystalline ice." Journal of Glaciology 49, no. 166 (2003): 397–406. http://dx.doi.org/10.3189/172756503781830638.

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AbstractQuantitative ice-core paleoclimatology must account for post-depositional processes, such as vapor-phase diffusion in the firn. After pore close-off, diffusion continues to smooth the stable-isotope records δ18O and δD that are eventually recovered from the ice, leading to the loss of high-frequency information. Johnsen and others (1997) found much higher rates of diffusive smoothing in the Greenland Icecore Project (GRIP) Holocene ice than would be predicted by diffusion through solid ice alone, and Nye (1998) argued that transport through liquid veins might explain this apparent exce

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Hansen, Kaj M., Anders Svensson, Yun Wang, and Jørgen Peder Steffensen. "Properties of GRIP ice crystals from around Greenland interstadial 3." Annals of Glaciology 35 (2002): 531–37. http://dx.doi.org/10.3189/172756402781816834.

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AbstractIce-crystal textures (sizes and shapes) and fabrics (c-axis orientations) have been determined in 3 m of vertical thin sections from the Greenland Icecore Project (GRIP) ice core. the samples cover ice from before, during and after Greenland interstadial 3 (IS3) that occurred about 25 kyr BP. the texture of 60 000 crystals has been obtained from stacked digital images by semi-automated methods, and the fabric of 5000 selected crystals has been measured on the Automatic Ice Fabric Analyzer at the Alfred Wegener Institute, Bremerhaven. the area distribution function of the crystals is cl

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Ruth, Urs, Dietmar Wagenbach, Matthias Bigler, Jørgen P. Steffensen, Regine Röthlisberger, and Heinz Miller. "High-resolution microparticle profiles at NorthGRIP, Greenland: case studies of the calcium–dust relationship." Annals of Glaciology 35 (2002): 237–42. http://dx.doi.org/10.3189/172756402781817347.

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AbstractA novel flow-through microparticle detector was deployed concurrently with continuous flow analyses of major ions during the North Greenland Icecore Project 2000 field season. the easy-handling detector performs continuous counting and sizing. In this deployment the lower size-detection limit was conservatively set to 1.0 μm equivalent spherical particle diameter, and a depth resolution of ≤1cm was achieved for microparticle concentrations. the dust concentration usually followed the Ca2+ variability. Here results are presented from an inspection of the Ca/dust mass ratio in 23 selecte

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Waddington, Edwin D., John F. Bolzan, and Richard B. Alley. "Potential for stratigraphie folding near ice-sheet centers." Journal of Glaciology 47, no. 159 (2001): 639–48. http://dx.doi.org/10.3189/172756501781831756.

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AbstractLack of agreement between the deep portions of the Greenland Icecore Project (GRIP) and Greenland Ice Sheet Project II (GISP2) ice cores from central Greenland suggests that folds may disrupt annual layering, even near ice divides. We use a simple kinematic flow model to delineate regions where slope disturbances (“wrinkles”) introduced into the layering could overturn into recumbent folds, and where they would flatten, leaving the stratigraphic record intact. Wrinkles are likely to originate from flow disturbances caused internally by inhomogeneities and anisotropy in the ice rheologi

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Forsström, Pirjo-Leena, Olli Sallasmaa, Ralf Greve, and Thomas Zwinger. "Simulation of fast-flow features of the Fennoscandian ice sheet during the Last Glacial Maximum." Annals of Glaciology 37 (2003): 383–89. http://dx.doi.org/10.3189/172756403781815500.

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AbstractIn order to reconstruct the palaeoglaciation in Fennoscandia and northern Asia during the late-Weichselian ice-age phase, simulations with the dynamic and thermodynamic ice-sheet model SICOPOLIS are carried out. Our focus is on the Last Glacial Maximum (LGM) around 20 kyr BP. Climate forcing is based on mean annualsur-face temperature and precipitation derived from present data and Palaeoclimatic Modelling Intercomparison Project (PMIP) UKMO21 results for the LGM. These distributions are interpolated via a glacial index defined by the Greenland Icecore Project (GRIP) δ18O record. The e

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Worton, D. R., W. T. Sturges, J. Schwander, R. Mulvaney, J. M. Barnola, and J. Chappellaz. "20th Century trends and budget implications of trihalomethanes and dihalomethanes inferred from North GRIP firn air." Atmospheric Chemistry and Physics Discussions 6, no. 1 (2006): 701–54. http://dx.doi.org/10.5194/acpd-6-701-2006.

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Abstract. Four trihalomethane (THM; CHCl3, CHBrCl2, CHBr2Cl and CHBr3) and two dihalomethane (DHM; CH2BrCl and CH2Br2) trace gases have been measured in air extracted from polar firn collected at the North Greenland Icecore Project (NGRIP) site. CHCl3 was also measured in firn air from Devon Island (DI), Canada, Dronning Maud Land (DML), Antarctica and Dome Concordia (Dome C), Antarctica. All of these species are believed to be almost entirely of natural origin except for CHCl3 where anthropogenic sources have been reported to contribute ~10% to the global burden. A 2-D atmospheric model was r

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Worton, D. R., W. T. Sturges, J. Schwander, R. Mulvaney, J. M. Barnola, and J. Chappellaz. "20th century trends and budget implications of chloroform and related tri-and dihalomethanes inferred from firn air." Atmospheric Chemistry and Physics 6, no. 10 (2006): 2847–63. http://dx.doi.org/10.5194/acp-6-2847-2006.

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Abstract. Four trihalomethane (THM; CHCl3, CHBrCl2, CHBr2Cl and CHBr3) and two dihalomethane (DHM; CH2BrCl and CH2Br2) trace gases have been measured in air extracted from polar firn collected at the North Greenland Icecore Project (NGRIP) site. CHCl3 was also measured in firn air from Devon Island (DI), Canada, Dronning Maud Land (DML), Antarctica and Dome Concordia (Dome C), Antarctica. All of these species are believed to be almost entirely of natural origin except for CHCl3 where anthropogenic sources have been reported to contribute ~10% to the global burden. A 2-D atmospheric model was r

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Mogensen, Irene A., Sigfüs J. Johnsen, Andrey Ganopolski, and Stefan Rahmstorf. "An investigation of rapid warm transitions during MIS2 and MIS3 using Greenland ice-core data and the CLIMBER-2 model." Annals of Glaciology 35 (2002): 398–402. http://dx.doi.org/10.3189/172756402781816654.

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AbstractIn the search for abetter understanding of the dominant mechanisms of the Earth’s climate system, we present a study of rapid warm-climate transitions to Dansgaard– Oeschger events as seen in the ice cores from the Greenland ice sheet. We present a continuous δ18O record from the Greenland Icecore Project (GRIP) core with a resolution of 5 years until 50 kyr BP and of 20 years until 100 kyr BP. These data are compared with other high-resolution records, i.e. the Greenland Ice Sheet Project II (GISP2) chemistry record (25 years until 50 kyr BP) and the GRIP Ca2+ record (3 years until 10

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Gillet-Chaulet, Fabie, Olivier Gagliardini, Jacques Meyssonnier, Maurine Montagnat, and Olivier Castelnau. "A user-friendly anisotropic flow law for ice-sheet modeling." Journal of Glaciology 51, no. 172 (2005): 3–14. http://dx.doi.org/10.3189/172756505781829584.

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AbstractFor accurate ice-sheet flow modelling, the anisotropic behaviour of ice must be taken fully into account. However, physically based micro-macro (μ-M) models for the behaviour of an anisotropic ice polycrystal are too complex to be implemented easily in large-scale ice-sheet flow models. An easy and efficient method to remedy this is presented. Polar ice is assumed to behave as a linearly viscous orthotropic material whose general flow law (GOLF) depends on six parameters, and its orthotropic fabric is described by an ‘orientation distribution function’ (ODF) depending on two parameters

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Ditlevsen, Peter D., Susanne Ditlevsen, and Katrine K. Andersen. "The fast climate fluctuations during the stadial and interstadial climate states." Annals of Glaciology 35 (2002): 457–62. http://dx.doi.org/10.3189/172756402781816870.

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AbstractRapid climate changes during the last glacial period were first observed in ice-core records (Dansgaard and others, 1982). These shifts between interstadials, called Dansgaard–Oeschger (D-O) events, and stadials or deep glaciation were later seen in Atlantic sediment records (Bond and others, 1993), pointing to the ocean circulation as a strong component in the dynamics of these shifts (Wright and Stocker, 1991). the interstadial states are observed to have a characteristic ``sawtooth’’ shape, indicating a gradual drift of the stable interstadial state toward the stable stadial state.

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Frechen, Manfred, Birgit Terhorst, and Wolfgang Rähle. "The Upper Pleistocene loess/palaeosol sequence from Schatthausen in North Baden-Württemberg." E&G Quaternary Science Journal 56, no. 3 (2007): 212–27. http://dx.doi.org/10.3285/eg.56.3.05.

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Abstract. The loess/palaeosol sequence from the section at Schatthausen in North Baden-Württemberg gives evidence for a younger Bt horizon superimposing the last interglacial palaeosol. This result requires a more careful investigation of polygenetic superimposing palaeosols to avoid misinterpretation of the chronostratigraphic positions. The humic horizon and the underlying Bt horizon were most likely formed during two soil forming periods, as evidenced by means of palaeopedology, phytoliths and luminescence dating. The lowermost Bt horizon (Bt1) was most likely formed during the Eemian inter

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Steinhage, Daniel, Olaf Eisen, and Henrik Brink Clausen. "Regional and temporal variation of accumulation around NorthGRIP derived from ground-penetrating radar." Annals of Glaciology 42 (2005): 326–30. http://dx.doi.org/10.3189/172756405781812574.

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AbstractDuring the summer of 2003, a ground-penetrating radar survey around the North Greenland Icecore Project (NorthGRIP) deep ice-core drilling site (75˚06’N, 42˚20’W; 2957ma.s.l.) was carried out using a shielded 250 MHz radar system. The drill site is located on an ice divide, roughly 300 km north-northwest of the summit of the Greenland ice sheet. More than 430 km of profiles were measured, covering a 10 km by 10 km area, with a grid centered on the drilling location, and eight profiles extending beyond this grid. Seven internal horizons within the upper 120 m of the ice sheet were conti

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Eicken, Hajo, Manfred A. Lange, and Peter Wadhams. "Characteristics and distribution patterns of snow and meteoric ice in the Weddell Sea and their contribution to the mass balance of sea ice." Annales Geophysicae 12, no. 1 (1994): 80–93. http://dx.doi.org/10.1007/s00585-994-0080-x.

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Abstract. Based on snow- and ice-thickness measurements at >11 000 points augmented by snow- and icecore studies during 4 expeditions from 1986 - 92 in the Weddell Sea, we describe characteristics and distribution patterns of snow and meteoric ice and assess their importance for the mass balance of sea ice. For first-year ice (FY) in the central and eastern Weddell Sea, mean snow depth amounts to 0.16 m (mean ice thickness 0.75 m) compared to 0.53 m (mean ice thickness 1.70 m) for second-year ice (SY) in the northwestern Weddell Sea. Ridged ice retains a thicker snow cover than level ice, w

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Gaisser, Thomas, and Francis Halzen. "IceCube." Annual Review of Nuclear and Particle Science 64, no. 1 (2014): 101–23. http://dx.doi.org/10.1146/annurev-nucl-102313-025321.

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de los Heros, Carlos P. "IceCube." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 630, no. 1 (2011): 119–24. http://dx.doi.org/10.1016/j.nima.2010.06.042.

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Gress, O. A., V. M. Lipunov, D. Dornic, et al. "MASTER INVESTIGATION OF ANTARES AND ICECUBE ALERTS." Revista Mexicana de Astronomía y Astrofísica Serie de Conferencias 51 (April 13, 2019): 89–95. http://dx.doi.org/10.22201/ia.14052059p.2019.51.15.

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This paper presents the first investigation results of possible coincidences of optical transients in the MASTER global robotic telescope net database with the localization regions of VHE and UHE neutrino alert events from ANTARES and IceCube observatories. MASTER is the first robotic telescopic system in Russia, dedicated to optical observation and registration of the most energetic and fastest explosive processes in the Universe. The goal is a deeper and more thorough study of space and time coincidences of the MASTER optical transients and high energy neutrinos.

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Giommi, P., T. Glauch, P. Padovani, E. Resconi, A. Turcati, and Y. L. Chang. "Dissecting the regions around IceCube high-energy neutrinos: growing evidence for the blazar connection." Monthly Notices of the Royal Astronomical Society 497, no. 1 (2020): 865–78. http://dx.doi.org/10.1093/mnras/staa2082.

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ABSTRACT The association of two IceCube detections, the IceCube-170922A event and a neutrino flare, with the blazar TXS 0506+056, has paved the way for the multimessenger quest for cosmic accelerators. IceCube has observed many other neutrinos but their origin remains unknown. To better understand the reason for the apparent lack of neutrino counterparts, we have extended the comprehensive dissection of the sky area performed for the IceCube-170922A event to all 70 public IceCube high-energy neutrinos that are well reconstructed and off the Galactic plane. Using the multifrequency data availab

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Williams, Dawn. "Recent Results from IceCube." International Journal of Modern Physics: Conference Series 46 (January 2018): 1860048. http://dx.doi.org/10.1142/s2010194518600480.

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The IceCube Neutrino Observatory is a cubic kilometer detector located at the geographic South Pole. IceCube was designed to detect high-energy neutrinos from cosmic sources, and the DeepCore extension of IceCube enables the study of atmospheric neutrino interactions down to energies of a few GeV. IceCube has detected a diffuse flux of neutrinos in the energy range from 100 TeV to several PeV, the properties of which are inconsistent with an atmospheric origin, and has also published competitive limits on atmospheric neutrino oscillation parameters and other neutrino properties. This paper pre

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ABBASI, RASHA. "ICECUBE NEUTRINO OBSERVATORY." International Journal of Modern Physics D 19, no. 06 (2010): 1041–48. http://dx.doi.org/10.1142/s021827181001697x.

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This contribution is a brief report on the IceCube kilometer cubed neutrino telescope located at the geographical South Pole. IceCube construction is on schedule to be completed in 2011. The full detector will consist of 86 strings, each with 60 digital optical modules. At the time of writing 59 strings of IceCube are taking data. Based on the data taken to date, the telescope meets its design goals. Selected results of ongoing analysis of IceCube detector data are presented.

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Halzen, Francis. "IceCube Science." Journal of Physics: Conference Series 171 (June 1, 2009): 012014. http://dx.doi.org/10.1088/1742-6596/171/1/012014.

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Halzen, Francis. "IceCube Science." Journal of Physics: Conference Series 173 (June 1, 2009): 012021. http://dx.doi.org/10.1088/1742-6596/173/1/012021.

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Mann, Adam. "IceCube completed." Nature 469, no. 7328 (2010): 13. http://dx.doi.org/10.1038/469013a.

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Meagher, Kevin J. "Neutrino Astronomy with IceCube." Proceedings of the International Astronomical Union 12, S324 (2016): 322–29. http://dx.doi.org/10.1017/s1743921317002307.

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AbstractThe IceCube Neutrino Observatory is a cubic kilometer neutrino telescope located at the Geographic South Pole. Cherenkov radiation emitted by charged secondary particles from neutrino interactions is observed by IceCube using an array of 5160 photomultiplier tubes embedded between a depth of 1.5 km to 2.5 km in the Antarctic glacial ice. The detection of astrophysical neutrinos is a primary goal of IceCube and has now been realized with the discovery of a diffuse, high-energy flux consisting of neutrino events from tens of TeV up to several PeV. Many analyses have been performed to ide

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Clark, B. A. "The IceCube-Gen2 Neutrino Observatory." Journal of Instrumentation 16, no. 10 (2021): C10007. http://dx.doi.org/10.1088/1748-0221/16/10/c10007.

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Abstract The IceCube Neutrino Observatory opened the window on neutrino astronomy by discovering high-energy astrophysical neutrinos in 2013 and identifying the first compelling astrophysical neutrino source, the blazar TXS0506 + 056, in 2017. In this proceeding, we will discuss the science reach and ongoing development of the IceCube-Gen2 facility, which is the planned extension to IceCube. IceCube-Gen2 will increase the rate of observed cosmic neutrinos by an order of magnitude, be able to detect five-times fainter neutrino sources, and extend the measurement of astrophysical neutrinos sever

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TABOADA, IGNACIO. "A REVIEW OF PARTICLE ASTROPHYSICS WITH ICECUBE." Modern Physics Letters A 27, no. 39 (2012): 1230042. http://dx.doi.org/10.1142/s021773231230042x.

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IceCube is a neutrino detector sensitive to energies above 10 GeV. IceCube operates by sensing the Cherenkov light from secondary particles produced in neutrino-matter interactions. One gigaton of highly transparent Antarctic ice is instrumented to achieve this goal. Designed to be modular, IceCube has been collecting data since construction began in 2005. Construction was completed in December 2010. The primary goal of IceCube is to observe astrophysical sources of neutrinos. We present here a summary of IceCube's recent results in atmospheric neutrinos, point sources, diffuse fluxes of neutr

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Savard, Katherine, John J. Ruan, and Daryl Haggard. "Are blazars above the blazar sequence a significant source of IceCube neutrinos?" Monthly Notices of the Royal Astronomical Society 509, no. 3 (2021): 4620–25. http://dx.doi.org/10.1093/mnras/stab3207.

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ABSTRACT The recent association of two flaring blazars (TXS 0506+056 and 3HSP J095507.9+355101) with IceCube neutrinos strongly suggests that blazars are at least one source of high-energy neutrinos. A peculiar characteristic of these two blazars is that they both appear to lie above the well-known blazar sequence, and they move further above the blazar sequence during the neutrino emission. Although the reason for this peculiarity is unclear, it may indicate a link between blazar SED properties and neutrino emission. Here, we test whether blazars lying above the blazar sequence are overrepres

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DeYOUNG, TYCE. "NEUTRINO ASTRONOMY WITH ICECUBE." Modern Physics Letters A 24, no. 20 (2009): 1543–57. http://dx.doi.org/10.1142/s0217732309031417.

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IceCube is a kilometer-scale high energy neutrino telescope under construction at the South Pole, a second-generation instrument expanding the capabilities of the AMANDA telescope. The scientific portfolio of IceCube includes the detection of neutrinos from astrophysical objects such as the sources of the cosmic rays, the search for dark matter, and fundamental physics using a very large data set of atmospheric neutrinos. The design and status of IceCube are briefly reviewed, followed by a summary of results to date from AMANDA and initial IceCube results from the 2007 run, with 22 of a planne

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Reimann, René. "Monitoring and Multi-Messenger Astronomy with IceCube." Galaxies 7, no. 1 (2019): 40. http://dx.doi.org/10.3390/galaxies7010040.

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IceCube currently is the largest neutrino observatory with an instrumented detection volume of 1 km3 buried in the ice-sheet close to the antarctic South Pole station. With a 4 π field of view and an up-time of >99%, it is continuously monitoring the full sky to detect astrophysical neutrinos. With the detection of an astrophysical neutrino flux in 2013, IceCube opened a new observation window to the non-thermal Universe. The IceCube collaboration has a large program to search for astrophysical neutrinos, including measurements of the energy spectrum of the diffuse astrophysical flux, auto-

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Das, Saikat, Soebur Razzaque, and Nayantara Gupta. "Cosmogenic gamma-ray and neutrino fluxes from blazars associated with IceCube events." Astronomy & Astrophysics 658 (February 2022): L6. http://dx.doi.org/10.1051/0004-6361/202142123.

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Context. Blazars constitute the vast majority of extragalactic γ-ray sources. They can also contribute a sizable fraction of the diffuse astrophysical neutrinos detected by IceCube. In the past few years, the real-time alert system of IceCube has led to the multiwavelength follow-up of very high-energy neutrino events of plausible astrophysical origin. Spatial and temporal coincidences of a number of these neutrino events with γ-ray blazars provide a unique opportunity to decipher cosmic-ray interactions in the relativistic jets. Aims. The aim of this work is to test if the γ-ray blazars assoc

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Gaisser, Thomas K. "The IceCube Neutrino Telescope." Proceedings of the International Astronomical Union 8, S288 (2012): 105–14. http://dx.doi.org/10.1017/s1743921312016742.

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AbstractConstruction of IceCube at the Amundsen-Scott South Pole Station was completed at the end of 2010 after eight construction seasons. The detector consists of 5,160 digital optical modules on 86 cables with 60 modules each, viewing in total a cubic kilometer of ice between 1,450 and 2,450 meters below the surface. IceCube includes a sub-array called DeepCore consisting of 8 special cables, and providing a more densely instrumented region with a lower energy threshold in the deep center of the array. IceCube also includes an air shower array called IceTop directly above the deep detector.

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Martin, H. Elizabeth, and W. Brian Whalley. "A glacier icecored rock glacier, Tröllaskagi, Iceland." Jökull 37, no. 1 (1987): 49–55. http://dx.doi.org/10.33799/jokull1987.37.049.

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Abbasi, R., M. Ackermann, J. Adams, et al. "D-Egg: a dual PMT optical module for IceCube." Journal of Instrumentation 18, no. 04 (2023): P04014. http://dx.doi.org/10.1088/1748-0221/18/04/p04014.

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Abstract The D-Egg, an acronym for “Dual optical sensors in an Ellipsoid Glass for Gen2,” is one of the optical modules designed for future extensions of the IceCube experiment at the South Pole. The D-Egg has an elongated-sphere shape to maximize the photon-sensitive effective area while maintaining a narrow diameter to reduce the cost and the time needed for drilling of the deployment holes in the glacial ice for the optical modules at depths up to 2700 m. The D-Egg design is utilized for the IceCube Upgrade, the next stage of the IceCube project also known as IceCube-Gen2 Phase 1, where nea

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Brunner, Jürgen. "IceCube and ANTARES." EPJ Web of Conferences 52 (2013): 09005. http://dx.doi.org/10.1051/epjconf/20135209005.

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DeYoung, Tyce. "Results from IceCube." EPJ Web of Conferences 116 (2016): 11004. http://dx.doi.org/10.1051/epjconf/201611611004.

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Mueck, Leonie. "The IceCube chronicles." Nature Physics 14, no. 1 (2018): 6. http://dx.doi.org/10.1038/nphys4326.

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Brik, Vladimir, Patrick Meade, Gonzalo Merino, Jan Oertlin, David Schultz, and Heath Skarlupka. "IceCube File Catalog." EPJ Web of Conferences 214 (2019): 04055. http://dx.doi.org/10.1051/epjconf/201921404055.

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IceCube is a cubic kilometer neutrino detector located at the south pole. Metadata for files in IceCube have traditionally been handled on an application by application basis, with no user-facing access. There has been no unified view of data files, and users often query the filesystem to locate files. Recently effort has been put into creating a unified view in a central metadata catalog. Going for a simple solution, we created a userfacing REST API backed by a NoSQL database. All major data producers add their metadata to this central catalog. Schema generation is identified as an important

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Klein, Spencer R., and the IceCube Collaboration. "Recentvs from IceCube." Journal of Physics: Conference Series 136, no. 2 (2008): 022050. http://dx.doi.org/10.1088/1742-6596/136/2/022050.

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Berghaus, P. "Muons in IceCube." Nuclear Physics B - Proceedings Supplements 196 (December 2009): 261–66. http://dx.doi.org/10.1016/j.nuclphysbps.2009.09.050.

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