Results 91 to 100 of about 86,799 (386)

Inversion of synthetic geodetic data for the 1997 Colfiorito events: clues on the effects of layering, assessment of model parameter PDFs, and model selection criteria

open access: yesAnnals of Geophysics, 2008
The 1997 September-October Umbria-Marche sequence has been extensively studied in the past by analyzing coseismic displacement data (GPS, leveling, SAR). Here we focus on synthetic data representative of the main event of the 1997 Umbria-Marche
L. Crescentini, A. Amoruso
doaj   +1 more source

Slum‐Based CAV Networks: Networking in Unyielding Poverty Situations

open access: yesStrategic Change, EarlyView.
ABSTRACT Over a billion of the world's population reside in slums. However, the configurations of their social and structural ties in these environments remain unsubstantiated. Drawing on a psychosociological rational choice perspective, we introduce theoretical explanations distinguishing slum dwellers' behavior, actions, and attitudes in community ...
Amon Simba, Eric Braune, Marina Dabić
wiley   +1 more source

GPR and GPS data integration: examples of application in Antarctica

open access: yesAnnals of Geophysics, 2001
Ground Penetrating Radar (GPR) and Global Positioning System (GPS) techniques were employed in snow accumulation studies during the Italian leg of the International Trans-Antarctic Scientific Expedition (ITASE).
S. Gandolfi, L. Vittuari, S. Urbini
doaj   +1 more source

International Association of Geodesy [PDF]

open access: yes
The International Association of Geodesy (IAG), one of seven associations within the International Union of Geodesy and Geophysics (IUGG), provides links to publications, meeting announcements, training, membership, and news articles. Educational levels:

core   +2 more sources

Ice thickness regulates heat flux in permanently ice‐covered lakes

open access: yesLimnology and Oceanography, EarlyView.
Abstract The permanently ice‐covered lakes of Taylor Valley, Antarctica, are rare ecosystems where permanent ice cover and year‐round vertically stable water columns provide critical redox zones for cold‐adapted microorganisms. Using 30 yr of limnological data from the McMurdo Dry Valleys Long‐Term Ecological Research program, we assessed the water ...
Hilary A. Dugan   +6 more
wiley   +1 more source

Applications of satellite and marine geodesy to operations in the ocean environment [PDF]

open access: yes
The requirements for marine and satellite geodesy technology are assessed with emphasis on the development of marine geodesy. Various programs and missions for identification of the satellite geodesy technology applicable to marine geodesy are analyzed ...
Fubara, D. M., Mourad, A. G.
core   +1 more source

Global and microlocal aspects of Dirac operators: Propagators and Hadamard states

open access: yesMathematische Nachrichten, EarlyView.
Abstract We propose a geometric approach to construct the Cauchy evolution operator for the Lorentzian Dirac operator on Cauchy‐compact globally hyperbolic 4‐manifolds. We realize the Cauchy evolution operator as the sum of two invariantly defined oscillatory integrals—the positive and negative Dirac propagators—global in space and in time, with ...
Matteo Capoferri, Simone Murro
wiley   +1 more source

500th Anniversary of Gerard Mercator's Birth and 1 st Day of the European Surveyor and Geoinformation, Zagreb, March 5, 2012

open access: yesKartografija i Geoinformacije, 2012
Mercator’s 500th birthday was celebrated with a scientific conference and an exhibition at the Faculty of Geodesy of the University of Zagreb. They were organized by the Croatian Cartographic Society, the State Geodetic Administration, the Faculty of ...
Miljenko Lapaine
doaj  

Multiple wavelength geodesy [PDF]

open access: yes
An apparatus is being constructed which should be able to measure baselines up to 50 km long with a fractional uncertainty of about 5 x 10 to the -8 power.
Levine, J.
core   +1 more source

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