Results 71 to 80 of about 408,400 (310)
Deep Underground Science and Engineering, EarlyView.Triaxial compression tests under unloading confining pressure conditions were conducted to systematically analyze the permeability behavior of granite retrieved from the different classification surrounding rocks. Abstract The rock mass within mountain tunnels undergoes complex changes in permeability, strength, and deformation during tunneling ...
Xiaoyan Zhang +4 more
wiley +1 more source
Snowpack observations from a circumnavigation of the Greenland Ice Sheet (spring 2014).
Cuadernos de Investigación Geográfica, 2016 We report the characteristics of the Greenland ice sheet snowpack, based on data collected during the first wind-propelled circumnavigation of the ice sheet, undertaken in spring 2014.
J. I. López Moreno +3 more
doaj +1 more source
Using a fixed-wing UAS to map snow depth distribution: an evaluation at peak accumulation [PDF]
The Cryosphere, 2016 We investigate snow depth distribution at peak accumulation over a small Alpine area ( ∼ 0.3 km2) using photogrammetry-based surveys with a fixed-wing unmanned aerial system (UAS).
C. De Michele +8 more
doaj +1 more source
Observations of snowpack properties to evaluate ground-based microwave remote sensing [PDF]
, 2013 Active microwave radar has been shown to have great potential for estimating snow water equivalent (SWE) globally from space. To help evaluate optimal active microwave sensor configurations to observe SWE, we evaluated ground-based Frequency Modulated ...
Emad Tajkhorshid (243146) +5 more
core +2 more sources
Ecography, EarlyView.The spatial ecology of stalk‐and‐ambush predators like the Eurasian lynx Lynx lynx depends on prey availability and environmental features, yet the relative roles of these factors remain unclear at large spatial scales. In this study, we analysed lynx habitat use across central and southern Finland using snow‐track data from the Wildlife Triangle ...
Francesca Malcangi +4 more
wiley +1 more source
Changes in Snow Storage in the Upper Hron River Basin (Slovakia) [PDF]
, 2014 An evaluation of changes in the snow cover in mountainous basins in Slovakia and a validation of MODIS satellite images are provided in this paper. An analysis of the changes in snow cover was given by evaluating changes in the snow depth, the duration
Fencík, Róbert +2 more
core +1 more source
Vegetation on the move: elevational shifts and greening dynamics across the Himalayan alpine zone
Ecography, EarlyView.This study investigates alpine ‘vegetation line' (the upper limit of continuous plant community) dynamics in the Himalayan alpine zone (HAZ) over a 24‐year timescale (1999–2022) using maximum NDVI products derived from Landsat series datasets, adjusted for sampling bias using phenological modelling.
Ruolin Leng +5 more
wiley +1 more source
Changes in snow depth under elevation‐dependent warming over the Tibetan Plateau
Atmospheric Science Letters, 2021 Snow plays an essential role in regulating climate change, the hydrological cycle, and various biological processes. Passive microwave snow depth data and gridded data from the Climate Research Unit (CRU_TS4.04) are utilized in this study to investigate ...
Liucheng Shen +4 more
doaj +1 more source
, 2010 This map shows the average maximum snow depth in centimetres computed over 18 winter seasons (1979 to 1997). Over southern Canada this usually occurs in January or February, while the time of maximum accumulation occurs much later in mountain areas and in the Arctic.
openaire +1 more source
Pre‐industrial land‐use limits contemporary shrub encroachment in the French Alps
Ecography, EarlyView.Shrub encroachment has become a global phenomenon in recent decades. While global warming in the Arctic is often cited as the primary cause, human‐managed mountain regions have experienced intense historical land‐use that may also play a considerable role.
Baptiste Nicoud +6 more
wiley +1 more source