Results 131 to 140 of about 7,958 (231)

Internal Structure of Ariebreen, Spitsbergen, from radio-echo sounding data [PDF]

, 2008
Ariebreen (77º 01' N, 15º 29' E) is a small valley glacier (ca. 0.36 km2 in August 2007) located at Hornsund, Spitsbergen, Svalbard, ca. 2.5 km to the west of Hornsund Polish Polar Station.
Gabriec, M., Jonsell, Ulf, Navarro Valero, Francisco Jose, Nawrot, A., Puczko, D.   +4 more
core   +1 more source

Polar sea ice observations by means of microwave radiometry [PDF]

Principles pertinent to the utilization of 1.55 cm wavelength radiation emanating from the surface of the earth for studying the changing characteristics of polar sea ice are briefly reviewed.
Campbell, W. J., Chang, T. C., Gloersen, P., Wilheit, T. T.   +3 more
core   +1 more source

Stratigraphic variation within polar firn caused by differential accumulation and ice flow: interpretation of a 400 MHz short-pulse radar profile from West Antarctica [PDF]

, 2005
Steven A. Arcone, V. B. Spikes, G. S. Hamilton   +2 more
openalex   +1 more source

Supplementary material to "A new multi-gas constrained model of trace gas non-homogeneous transport in firn: evaluation and behavior at eleven polar sites"

, 2011
E. Witrant, P. Martinerie, C. Hogan, J. C. Laube, Kazuhiro Kawamura, E. Capron, S. A. Montzka, E. J. Dlugokencky, D. Etheridge, T. Blunier, W. T. Sturges   +10 more
openalex   +1 more source

Investigation of pore closure during polar firn densification

, 2017
.La densification du névé en glace est un processus essentiel à comprendre pour interpréter les enregistrements climatiques. Une bonne connaissance des mécanismes permet une datation précise de l'air capturé dans la glace lors de la fermeture des pores.
openaire   +1 more source

In-situ observation of bubble trapping in polar firn

, 2017
The air trapped in polar ice cores is not a direct record of past atmospheric composition but is strongly influenced by the process of firnification as bubbles are only sealed at a certain point, when the respective horizontal layer reaches a so called “critical” porosity.
Schaller, Christoph Florian, Freitag, Johannes, Sowers, Todd, Vinther, Bo, Weinhart, Alexander, Eisen, Olaf   +5 more
openaire   +1 more source

Microwave brightness of polar firn as measured by Nimbus 5 and 6 ESMR [PDF]

The microwave emission from a half-space medium characterized by coordinate dependent scattering and absorbing centers was calculated by numerically solving the radiative transfer equation by the method of invariant imbedding.
Chang, A. T. C., Choudhury, B. J., Gloersen, P.   +2 more
core   +1 more source

Polar firn air reveals large-scale impact of anthropogenic mercury emissions during the 1970s. [PDF]

Proc Natl Acad Sci U S A, 2009
Faïn X, Ferrari CP, Dommergue A, Albert MR, Battle M, Severinghaus J, Arnaud L, Barnola JM, Cairns W, Barbante C, Boutron C.   +10 more
europepmc   +1 more source

New Constraints on the Timing and Pattern of Deglaciation in the Húnaflói Bay Region of Northwest Iceland Using Cosmogenic 36CA Dating and Geomorphic Mapping

, 2017
Understanding the evolution and timing of changes in ice sheet geometry and extent in Iceland during the Last Glacial Maximum (LGM) and subsequent deglaciation continues to stimulate much active research.
Finkel, Robert C., Houts, Amanda N., Licciardi, Joseph M., Principato, Sarah M., Zimmerman, Susan H.   +4 more
core  

Glacial Water: A Dynamic Microbial Medium. [PDF]

Microorganisms, 2023
Varliero G, Lebre PH, Frey B, Fountain AG, Anesio AM, Cowan DA.   +5 more
europepmc   +1 more source