Results 91 to 100 of about 256 (175)

Polarimetric multi-offset radio-echo sounding with a radio frequency-over-fiber ApRES system

Journal of Glaciology
Polarimetric multi-offset radio-echo sounding offers improved constraints on englacial thermal conditions, basal properties and ice crystal orientation compared to standard monostatic observations.
Daniel F. May, Dustin M. Schroeder, Paul T. Summers, Thomas O. Teisberg, Anna L. Broome, Nicole L. Bienert, Jaiden Zak, Tun Jan Young, Marianne S. Karplus, Slawek M. Tulaczyk   +9 more
doaj   +1 more source

A possible unique ecosystem in the endoglacial hypersaline brines in Antarctica. [PDF]

Sci Rep, 2023
Guglielmin M, Azzaro M, Buzzini P, Battistel D, Roman M, Ponti S, Turchetti B, Sannino C, Borruso L, Papale M, Lo Giudice A.   +10 more
europepmc   +1 more source

Instruments and Methods: A Portable Digital Data-Acquisition System for Surface-Based Ice-Radar Studies

, 1988
We have built a radio-echo sounder which utilizes a low-frequency broad-band impulse transmitter and a microprocessor-based digital-recording system. The unit is mounted on skis and power is delivered by a small generator and batteries. The receiver uses
Stefan K. Anderson, Dennis F. Rioux, Robert W. Jacobel   +2 more
core   +1 more source

The Impact of Basal Roughness on Inland Thwaites Glacier Sliding. [PDF]

Geophys Res Lett, 2022
Hoffman AO, Christianson K, Holschuh N, Case E, Kingslake J, Arthern R.   +5 more
europepmc   +1 more source

Instruments and Methods: A Shear-creep System for Studying Grain-boundary Behaviour in Ice

, 1989
We present here a shear-creep apparatus. This has been designed to study grain-boundary behaviour in ice bi-crystals. The design and dimensions of this apparatus were determined by taking into account the results of earlier tests, performed on the same ...
G. Ricou, M. Ignat
core   +1 more source

Observing the subglacial hydrology network and its dynamics with a dense seismic array. [PDF]

Proc Natl Acad Sci U S A, 2021
Nanni U, Gimbert F, Roux P, Lecointre A.
europepmc   +1 more source

Instruments and Methods: A New Version of a Steam-Operated Ice Drill

, 1971
A further development of the Howorka steam-operated ice drill is given. It is mounted on a pack frame for easy transportation in rugged terrain. A propane flame is used to vaporize water in a single-pass fire-tube boiler.
Steven M. Hodge
core   +1 more source

A high-resolution icequake catalog from Rutford Ice Stream via an enhanced QuakeMigrate workflow with integrated GrowClust support

Annals of Glaciology
We present a high-resolution dataset of over one million icequakes located just upglacier of the grounding line of Rutford Ice Stream, West Antarctica, spanning a 23 day period during January 2019.
Ian R.J. Lee, Sridhar Anandakrishnan, Richard B. Alley, Andrew M. Smith   +3 more
doaj   +1 more source

Coastal planktonic community unaffected by Boreal hydropower complex in Québec, Canada. [PDF]

Environ Monit Assess, 2022
Deblois C, Demarty M, Tremblay A.
europepmc   +1 more source

Instruments and Methods High Pressure Coupling for Pipe in Deep Water Filled Bore Holes

, 1963
In August 1961 an aluminum pipe (3.5 cm. internal diameter, 4.2 cm. external diameter) having 92 specially modified socket couplings (5.0 cm. external diameter) sealed with a quick-polymerizing synthetic rubber was sunk 226 m.
R. L. Shreve
core   +1 more source