Results 1 to 10 of about 8,007 (257)

Observations and simulations of new snow density in the drifting snow-dominated environment of Antarctica

open access: yesJournal of Glaciology, 2023
Owing to drifting snow processes, snow accumulation and surface density in polar environments are variable in space and time. We present new field data of manual measurements, repeat terrestrial laser scanning and snow micro-penetrometry from Dronning ...
Nander Wever   +6 more
doaj   +2 more sources

Performance of snow density measurement systems in snow stratigraphies [PDF]

open access: yesHydrology Research, 2021
Gravimetric and dielectric permittivity measurement systems (DMS) are applied to measure snow density, but few studies have addressed differences between the two measurement systems under complex snowpack conditions.
Jiansheng Hao   +3 more
doaj   +2 more sources

Snow density climatology across the former USSR [PDF]

open access: yesThe Cryosphere, 2014
Snow density is one of the basic properties used to describe snow cover characteristics, and it is a key factor for linking snow depth and snow water equivalent, which are critical for water resources assessment and modeling inputs.
X. Zhong, T. Zhang, K. Wang
doaj   +2 more sources

Spatio-Temporal Characteristics and Differences in Snow Density between the Tibet Plateau and the Arctic

open access: yesRemote Sensing, 2023
The Tibet Plateau (TP) and the Arctic are typically cold regions with abundant snow cover, which plays a key role in land surface processes. Knowledge of variations in snow density is essential for understanding hydrology, ecology, and snow cover ...
Wenyu Zhao   +8 more
doaj   +3 more sources

Particle Filter Data Assimilation of Monthly Snow Depth Observations Improves Estimation of Snow Density and SWE

open access: yesWater Resources Research, 2019
Snow depth observations and modeled snow density can be combined to calculate snow water equivalent (SWE). In this approach, SWE uncertainty is dominated by snow density uncertainty, which depends on meteorological data quality and process representation
Eric J. Smyth   +2 more
doaj   +2 more sources

Estimating Daily Snow Density Through a Spatiotemporal Random Forest Model

open access: yesWater Resources Research
Snow density is of paramount importance in water resource management, snow avalanche warning, and climate change research. However, the lack of competent methods for long‐term and vast‐scale snow density mapping persists due to the intricate ...
Liyang Sun   +4 more
doaj   +2 more sources

Simple estimation of snow density in an Alpine region

open access: yesJournal of Hydrology: Regional Studies, 2016
Study region: The Upper Adige catchment, South Tyrol, Italy. Study focus: The empirical snow density models of Jonas et al. (2009) and Sturm et al. (2010), are compared with a simple equation that predicts snow density based on the day of the year only ...
A. Pistocchi
doaj   +3 more sources

Comparison of bulk snow density measurements using different methods

open access: yesAdvances in Climate Change Research
Snow density is one of the basic properties used to describe snow cover characteristics, and it is critical for remote sensing retrieval, water resources assessment and modeling inputs. There are many instruments available to measure snow density in situ.
Hang Su   +5 more
doaj   +3 more sources

Towards large-scale daily snow density mapping with spatiotemporally aware model and multi-source data [PDF]

open access: yesThe Cryosphere, 2023
Snow density plays a critical role in estimating water resources and predicting natural disasters such as floods, avalanches, and snowstorms. However, gridded products for snow density are lacking for understanding its spatiotemporal patterns.
H. Wang   +7 more
doaj   +1 more source

Impact of dynamic snow density on GlobSnow snow water equivalent retrieval accuracy [PDF]

open access: yesThe Cryosphere, 2021
Snow water equivalent (SWE) is an important variable in describing global seasonal snow cover. Traditionally, SWE has been measured manually at snow transects or using observations from weather stations.
P. Venäläinen   +5 more
doaj   +1 more source

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