Results 41 to 50 of about 1,232,545 (297)

A hierarchical knowledge-based classification for glacier terrain mapping: a case study from Kolahoi Glacier, Kashmir Himalaya

Annals of Glaciology, 2016
A glacierized terrain comprises different land covers, and their mapping using satellite data is challenged by their spectral similarity. We propose a hierarchical knowledge-based classification (HKBC) approach for differentiation of glacier terrain ...
Aparna Shukla, Iram Ali
doaj   +1 more source

A distributed energy-balance melt model of an alpine debris-covered glacier [PDF]

, 2014
Distributed energy-balance melt models have rarely been applied to glaciers with extensive supraglacial debris cover. This paper describes the development of a distributed melt model and its application to the debris-covered Miage glacier, western ...
Kirkbride, M., F. Diotri, Brock, B.W., M. P. Kirkbride, Diolaiuti, Guglielmina, Reid, T., T. D. Reid, Reid, Tim, C. L. Fyffe, Diotri, Fabrizio, Brock, Ben W., Kirkbride, Martin P., Diotri, F., C. Smiraglia, Fyffe, Catriona L, Fyffe, Catriona, Smiraglia, C., Diolaiuti, G., Reid, Tim D., Brock, Benjamin, Kirkbride, Martin, G. Diolaiuti, Smiraglia, Claudio, B. W. Brock   +23 more
core   +1 more source

Modeling 2m air temperatures over mountain glaciers: Exploring the influence of katabatic cooling and external warming [PDF]

, 2015
Air temperature is one of the most relevant input variables for snow and ice melt calculations. However, local meteorological conditions, complex topography, and logistical concerns in glacierized regions make the measuring and modeling of air ...
J. M. Shea, F. Pellicciotti, Ayala, Alvaro, A. Ayala, Shea, J. M., Pellicciotti, Francesca, Pellicciotti, F., Ayala, A.   +7 more
core   +1 more source

Improving automatic glacier mapping accuracy, robustness, and reliability across the Third Pole Region

GIScience & Remote Sensing
Most automatic glacier mapping methods applied in the Third Pole Region (TPR), exhibit suboptimal accuracy for debris-covered glaciers, high sensitivity to interferences, and large uncertainty in model outputs, thereby limiting their operational utility.
Wei Jia, Ninglian Wang, Chenlie Shi, Yuwei Wu, Anan Chen, Gexia Qin, Bo Jiang   +6 more
doaj   +1 more source

MAPPING SVALBARD GLACIERS WITH THE CRYOWING UAS [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013
Abstract. The remoteness of most Svalbard glaciers makes it difficult to perform regular in situ monitoring, especially in the melting season. Terminus areas (into the sea) and crevassed areas are in practice only accessible from the air. In this paper, first investigations on the feasibility of UAS based 3D measurements of glacier elevation is ...
S. Solbø, R. Storvold
openaire   +3 more sources

An energy-balance model for debris-covered glaciers including heat conduction through the debris layer [PDF]

, 2010
Extensive covers of supraglacial debris are often present in glacier ablation areas, and it is essential to assess exactly how the debris affects glacier melt rates.
Brock, B.W., Reid, Tim, Ben W. Brock, Reid, T.D., Brock, Benjamin, Tim D. Reid   +5 more
core   +1 more source

Downwasting and supraglacial lake evolution on the debris-covered Ngozumpa Glacier, Khumbu Himal, Nepal [PDF]

, 2015
In recent decades, the downwasting of several debris-covered glaciers in the Himalaya has led to the formation of large and potentially hazardous moraine- dammed lakes.
Hands, Kathryn Ann
core   +1 more source

Molecular characterization of covRS mutations in M1UK Streptococcus pyogenes

FEBS Open Bio, EarlyView.
Group A Streptococcus (GAS) acquires covRS mutations driving a hypervirulent bacterial state, frequently associated with invasive disease‐like necrotizing fasciitis. We demonstrate that the newly emerged M1UK GAS lineage can also acquire these mutations.
Jarrad Pritchard, Emma‐Jayne Proctor, Jiawa Wang, Nikolas P. Johnston, Andrew Hayes, Georgia McCorkell, Haibo Yu, Jai Tree, Mark R. Davies, Mark J. Walker, Ronald Sluyter, Stephan Brouwer, Martina L. Sanderson‐Smith   +12 more
wiley   +1 more source

A semi-automated, GIS-based framework for the mapping of supraglacial hydrology

Journal of Glaciology, 2023
Supraglacial drainage networks play an integral role in both glacier dynamics and run-off timing, and mapping them provides insight into their role in glacial systems.
Eleanor A Bash, Colette Shellian, Christine F Dow, Greg Mcdermid, Will Kochtitzky, Dorota Medrzycka, Luke Copland   +6 more
doaj   +1 more source

Upcycling Keratin‐Based Textile Waste Into High‐Performance Hybrid Fibers Via Tuning the Interfacial Interactions

Advanced Functional Materials, EarlyView.
Keratin recovered from animal‐hair textile waste is fractionated and blended with cellulose to produce continuously spun hybrid fibers. Selecting the high‐molecular‐weight keratin fraction enables 30 wt.% keratin incorporation while maintaining high strength in dry and wet states.
Mian Zhai, Daniel Van Opdenbosch, Inge Schlapp‐Hackl, Teemu Välisalmi, Markus Linder, Michael Hummel, Wenwen Fang   +6 more
wiley   +1 more source