Results 11 to 20 of about 22,971 (167)

Unmanned Aerial Vehicle-Based Structure from Motion Technique for Precise Snow Depth Retrieval—Implication for Optimal Ground Control Point Deployment Strategy

open access: yesRemote Sensing, 2023
Unmanned aerial vehicle (UAV)-based snow depth is mapped as the difference between snow-on and snow-off digital surface models (DSMs), which are derived using the structure from motion (SfM) technique with ground control points (GCPs).
Song Shu   +4 more
doaj   +1 more source

Intercomparison of photogrammetric platforms for spatially continuous snow depth mapping [PDF]

open access: yesThe Cryosphere, 2021
Snow depth has traditionally been estimated based on point measurements collected either manually or at automated weather stations. Point measurements, though, do not represent the high spatial variability in snow depths present in alpine terrain ...
L. A. Eberhard   +7 more
doaj   +1 more source

EVALUATING THE CONSISTENCY OF REMOTE SENSING BASED SNOW DEPTH PRODUCTS IN ARID ZONE OF WESTERN CHINA [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
Snow cover is a sensitive indicator of global climate change. Among various snow cover parameters, snow depth which can indicate snow accumulation is essential for retrieving snow water equivalent.
Q. Zhou, B. Sun
doaj   +1 more source

An Approaching on Estimating of Snow Depth and Snow Water Equivalent.

open access: yesAir and Water Components of the Environment Conference, 2020
Snow water equivalent (SWE) and snow depth (SD) is estimating using Snow 17 model for several meteorological mountain stations from Romania. The model uses air temperature as the sole index to determine the energy exchange across the snow-air interface.
Vlad-Alexandru AMIHAESEI   +2 more
openaire   +2 more sources

Ground-based GPS Used in the Snow Depth Survey of Greenland [PDF]

open access: yesJournal of Geodesy and Geoinformation Science, 2021
Snow cover is one of the important components of land cover, and it is necessary to accurately monitor the depth and coverage of snow cover. Using the GPS signal receiver data and the basic principle of snow depth detection based on GPS-MR technology ...
Shuangcheng ZHANG,Meiling ZHOU,Yajie WANG,Ning LIU,Qi LIU,Jilun PENG
doaj   +1 more source

Impacts of landscape and climatic factors on snow cover in the Altai Mountains, China

open access: yesAdvances in Climate Change Research, 2021
Snow properties and their changes are crucial to better understanding of hydrological processes, soil thermal regimes, and surface energy balances. Reliable data and information on snow depth and snow water equivalent (SWE) are also crucial for water ...
Xin-Yue Zhong   +10 more
doaj   +1 more source

Persistence in intra‐annual snow depth distribution: 2. Fractal analysis of snow depth development [PDF]

open access: yesWater Resources Research, 2011
We present an analysis of high resolution laser scanning data of snow depths of three different slopes in the Wannengrat catchment (introduced in part 1) using omnidirectional and directional variograms for three specific terrain features; cross‐loaded slopes, lee slopes, and windward slopes.
Schirmer, M., Lehning, M.
openaire   +2 more sources

Downscaling Snow Depth Mapping by Fusion of Microwave and Optical Remote-Sensing Data Based on Deep Learning

open access: yesRemote Sensing, 2021
Accurate high spatial resolution snow depth mapping in arid and semi-arid regions is of great importance for snow disaster assessment and hydrological modeling.
Linglong Zhu   +7 more
doaj   +1 more source

Measuring the spatiotemporal variability in snow depth in subarctic environments using UASs – Part 2: Snow processes and snow–canopy interactions [PDF]

open access: yesThe Cryosphere, 2023
Detailed information on seasonal snow cover and depth is essential to the understanding of snow processes, to operational forecasting, and as input for hydrological models.
L.-J. Meriö   +8 more
doaj   +1 more source

Spatiotemporal Variation of Snow Depth in the Northern Hemisphere from 1992 to 2016

open access: yesRemote Sensing, 2020
A comprehensive and hemispheric-scale snow cover and snow depth analysis is a prerequisite for all related processes and interactions investigation on regional and global surface energy and water balance, weather and climate, hydrological processes, and ...
Xiongxin Xiao   +3 more
doaj   +1 more source

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