FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4322002720> ?p ?o ?g. }

• W4322002720 abstract "In the Southern Hemisphere, the prevalence of the oceans and the difficulty of access to land result in a lack of coverage of seismological station which is a strong limitation Our knowledge of the Earth&#8217;s structures and of large earthquakes sources. This is particularly critical inside the Antarctic continent where only two permanent seismological stations are currently available (QSPA and CCD). Among them, the seismological station CCD is a joint program between EOST (Strasbourg) and INGV (Roma) and is installed at the Concordia scientific base (75&#176;S 123&#176;E). This observatory, built in 2000 with state-of-the-art surface instrumentation installed in a vault made of snow-covered containers, meets the required quality criteria and has been part of the GEOSCOPE network since 2008. However, it has become necessary to replace this installation for safety reasons, recurring snow coverage issues and seismological performances. The existing seismic vault is deformed by the hydrostatic pressure of the snow. Its proximity to the base causes strong daytime noise (~30 dB) at high frequencies (>1 Hz); the unconsolidated layer of snow about 100m thick forms a waveguide that traps anthropogenic noise from the base. In addition, a coupling defect of the instruments in contact with the snow limits the performance at low frequencies (< 0.03 Hz) on the horizontal channels.Eight years ago, we proposed to install a borehole seismometer at a depth of 120m to limit the waveguide effects. A new shelter on stilt and the borehole drilling were carried out in 2018/2019. The installation of all the instrumentation has been completed by our team in January 2020. The analyses of the data show that the high-frequency disturbances are very largely attenuated (-30 dB at 10 Hz) compared to the surface installation and that the horizontal channels have a lower noise level at low frequencies (-20 dB at 0.01Hz). In addition, data for all components are below the standard noise model for frequencies between 5 and 9Hz, which already makes this new station one of the quietest installations in the world for those frequencies. A few problems remain to be solved, such as atmospheric pressure-related perturbations for periods longer than 600s on the vertical component. We are currently implementing several patches to try to better insulate the borehole. Updates will be presented during the meeting. Despite this problem at long period, the new CCD borehole stations is a success with better-than-expected performances at all periods shorter than 500s. The data produced are now distributed in the world data centers as G.CCD.20." @default.
• W4322002720 created "2023-02-26" @default.
• W4322002720 creator A5006179246 @default.
• W4322002720 creator A5015917448 @default.
• W4322002720 creator A5018184913 @default.
• W4322002720 creator A5018374506 @default.
• W4322002720 creator A5020159080 @default.
• W4322002720 creator A5026318707 @default.
• W4322002720 creator A5027660106 @default.
• W4322002720 creator A5032467095 @default.
• W4322002720 creator A5034582285 @default.
• W4322002720 creator A5038097675 @default.
• W4322002720 creator A5043374413 @default.
• W4322002720 creator A5045713474 @default.
• W4322002720 creator A5047433777 @default.
• W4322002720 creator A5052223244 @default.
• W4322002720 creator A5072047732 @default.
• W4322002720 creator A5075777282 @default.
• W4322002720 creator A5078122418 @default.
• W4322002720 creator A5078346104 @default.
• W4322002720 creator A5087349607 @default.
• W4322002720 creator A5088400996 @default.
• W4322002720 date "2023-05-15" @default.
• W4322002720 modified "2023-10-17" @default.
• W4322002720 title "Evolution of the Concordia seismological observatory station CCD (GEOSCOPE network): a new post-hole installation on Antarctica plateau" @default.
• W4322002720 doi "https://doi.org/10.5194/egusphere-egu23-12520" @default.
• W4322002720 hasPublicationYear "2023" @default.
• W4322002720 type Work @default.
• W4322002720 citedByCount "0" @default.
• W4322002720 crossrefType "posted-content" @default.
• W4322002720 hasAuthorship W4322002720A5006179246 @default.
• W4322002720 hasAuthorship W4322002720A5015917448 @default.
• W4322002720 hasAuthorship W4322002720A5018184913 @default.
• W4322002720 hasAuthorship W4322002720A5018374506 @default.
• W4322002720 hasAuthorship W4322002720A5020159080 @default.
• W4322002720 hasAuthorship W4322002720A5026318707 @default.
• W4322002720 hasAuthorship W4322002720A5027660106 @default.
• W4322002720 hasAuthorship W4322002720A5032467095 @default.
• W4322002720 hasAuthorship W4322002720A5034582285 @default.
• W4322002720 hasAuthorship W4322002720A5038097675 @default.
• W4322002720 hasAuthorship W4322002720A5043374413 @default.
• W4322002720 hasAuthorship W4322002720A5045713474 @default.
• W4322002720 hasAuthorship W4322002720A5047433777 @default.
• W4322002720 hasAuthorship W4322002720A5052223244 @default.
• W4322002720 hasAuthorship W4322002720A5072047732 @default.
• W4322002720 hasAuthorship W4322002720A5075777282 @default.
• W4322002720 hasAuthorship W4322002720A5078122418 @default.
• W4322002720 hasAuthorship W4322002720A5078346104 @default.
• W4322002720 hasAuthorship W4322002720A5087349607 @default.
• W4322002720 hasAuthorship W4322002720A5088400996 @default.
• W4322002720 hasConcept C111919701 @default.
• W4322002720 hasConcept C114793014 @default.
• W4322002720 hasConcept C115961682 @default.
• W4322002720 hasConcept C118530786 @default.
• W4322002720 hasConcept C119217923 @default.
• W4322002720 hasConcept C121332964 @default.
• W4322002720 hasConcept C127313418 @default.
• W4322002720 hasConcept C127413603 @default.
• W4322002720 hasConcept C1276947 @default.
• W4322002720 hasConcept C134306372 @default.
• W4322002720 hasConcept C150560799 @default.
• W4322002720 hasConcept C153294291 @default.
• W4322002720 hasConcept C154945302 @default.
• W4322002720 hasConcept C165205528 @default.
• W4322002720 hasConcept C170154142 @default.
• W4322002720 hasConcept C18555067 @default.
• W4322002720 hasConcept C186295008 @default.
• W4322002720 hasConcept C187320778 @default.
• W4322002720 hasConcept C197046000 @default.
• W4322002720 hasConcept C2779919027 @default.
• W4322002720 hasConcept C2780030769 @default.
• W4322002720 hasConcept C2780344732 @default.
• W4322002720 hasConcept C33923547 @default.
• W4322002720 hasConcept C41008148 @default.
• W4322002720 hasConcept C66938386 @default.
• W4322002720 hasConcept C99498987 @default.
• W4322002720 hasConceptScore W4322002720C111919701 @default.
• W4322002720 hasConceptScore W4322002720C114793014 @default.
• W4322002720 hasConceptScore W4322002720C115961682 @default.
• W4322002720 hasConceptScore W4322002720C118530786 @default.
• W4322002720 hasConceptScore W4322002720C119217923 @default.
• W4322002720 hasConceptScore W4322002720C121332964 @default.
• W4322002720 hasConceptScore W4322002720C127313418 @default.
• W4322002720 hasConceptScore W4322002720C127413603 @default.
• W4322002720 hasConceptScore W4322002720C1276947 @default.
• W4322002720 hasConceptScore W4322002720C134306372 @default.
• W4322002720 hasConceptScore W4322002720C150560799 @default.
• W4322002720 hasConceptScore W4322002720C153294291 @default.
• W4322002720 hasConceptScore W4322002720C154945302 @default.
• W4322002720 hasConceptScore W4322002720C165205528 @default.
• W4322002720 hasConceptScore W4322002720C170154142 @default.
• W4322002720 hasConceptScore W4322002720C18555067 @default.
• W4322002720 hasConceptScore W4322002720C186295008 @default.
• W4322002720 hasConceptScore W4322002720C187320778 @default.
• W4322002720 hasConceptScore W4322002720C197046000 @default.
• W4322002720 hasConceptScore W4322002720C2779919027 @default.
• W4322002720 hasConceptScore W4322002720C2780030769 @default.
• W4322002720 hasConceptScore W4322002720C2780344732 @default.
• W4322002720 hasConceptScore W4322002720C33923547 @default.
• W4322002720 hasConceptScore W4322002720C41008148 @default.

• next