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Showing 1 to 18 of 18 for “"snow water equivalent (SWE)"”.
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Acoustic sounding of snow water equivalent
An acoustic frequency-swept wave was investigated as a means for determining Snow Water Equivalent (SWE) in cold wind-swept prairie and sub-alpine environments. Building on previous research conducted by investigators who have examined the propagation of sound in snow, digital signal processing was …
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ASSESSMENT AND POTENTIAL ADJUSTMENTS TO THE SNOW-RELATED ALGORITHMS IN BIOME-BGC, v4.2
Many watersheds throughout the mountain west are snow-melt dominated. Recent studies suggest that climatic shifts throughout the 20th century have diminished snowpack around the west, a trend that may accelerate in the future. Loss of critical snowpack could negatively affect the ecosystems and …
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ASSESSMENT AND POTENTIAL ADJUSTMENTS TO THE SNOW-RELATED ALGORITHMS IN BIOME-BGC, v4.2
Many watersheds throughout the mountain west are snow-melt dominated. Recent studies suggest that climatic shifts throughout the 20th century have diminished snowpack around the west, a trend that may accelerate in the future. Loss of critical snowpack could negatively affect the ecosystems and …
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Snow Hydrology and Streamflow Response to Snowmelt: A Case Study on SWE Dataset Comparisons, Regional Water Balance, and Snowmelt-Induced Runoff within the Smith River Watershed, Montana
Seasonal snowpacks in snow-dominated watersheds across the western United States play a critical role in sustaining regional water resources by delaying runoff and regulating streamflow. This research examined snow hydrology in the Smith River Watershed, located in Montana, USA, over five water …
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PASSIVE MICROWAVE SATELLITE SNOW OBSERVATIONS FOR HYDROLOGIC APPLICATIONS
Melting snow provides an essential source of water in many regions of the world and can also contribute to devastating, wide-scale flooding. The objective of this research was to investigate the potential for passive microwave remotely sensed data to characterize snow water equivalent (SWE) and …
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Design and Development of an RF-SoC-Based Ultra-Wideband Radar for Remote Sensing of Snow
Snow is a crucial element of Earth's climate system, making its monitoring essential for the effective management of global water resources. High-resolution snow measurements are fundamental to climate modeling, hydrology, and water resource management. Currently, global snow monitoring relies on …
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Characterization of the spatial and temporal variability in pan-Arctic, terrestrial hydrology
… system, and there are signs that significant water-cycle changes, involving complex feedbacks, have occurred. This dissertation explores the methods to estimate components of the arctic hydrological cycle, the numerous biases and uncertainties associated with the techniques, and suggestions …
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Spatial accumulation patterns of snow water equivalent in the southern Rocky Mountains
… point measurements may be taken within a given watershed to estimate snow water equivalent (SWE) due to cost limitations, which necessitates basin-scale estimation of SWE. Modeling often assumes consistency in the spatial distribution of SWE, which may not be correct. Identifying patterns and …
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Evaluating and correcting sensor change artifacts in the SNOTEL temperature records, southern Rocky Mountains, Colorado
… average. These warming rates directly affect the snowpack, runoff, ecosystems, agriculture and species that rely on a high elevation snowpack. Temperature records from the snow telemetry (SNOTEL) network across the Southern Rocky Mountains in the western United States have high warming rates, …
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Evaluation of Snow and Streamflow in the National Water Model with Analysis using Machine Learning
<p>Snow has great influence on land-atmosphere interactions and snowmelt from the mountains is a vital water source for downstream communities dependent on snow fed lakes, rivers and streams. This study explored the snow and streamflow prediction capabilities of process-based numerical prediction …
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Observed and Predicted Climate Change Impact on Water Resources of the Upper Indus Basin: English
Climate change has implications for water resources across the World by increasing temperature, shifting precipitation patterns and altering the timing of snowfall/snowmelt, that can lead to seasonal variations in river flows. The water resources of the Upper Indus Basin (UIB) are highly dependent …
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Practical snow depth sampling around six snow telemetry (SNOTEL) stations in Colorado and Wyoming, United States
… Service (NRCS) operates about 700 automated snowpack telemetry (SNOTEL) measurement stations. These stations measure snow depth (SD), snow water equivalent (SWE), air temperature and precipitation. To assess how representative the stations are of the surrounding 1 km2 area, a set of …
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Improving Snow Deposition Magnitude and Heterogeneity Using Historic Snow Patterns in the California, USA, Sierra Nevada
Mountainous snow-covered landscapes in the Western United States behave like natural reservoirs, storing water during cold winter periods and sustaining snowmelt-driven streamflow vital for agriculture, municipalities, hydropower generation, and local ecosystems. In these regions, the timing and …
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1300 Years of Snowpack Change for the Sangre de Cristo Mountian Range
… of the cool-season precipitation accumulates as snowpack in the lower Southern Rocky Mountains. Snowpack runoff from the Sangre de Cristo (SDC) range provides critical headwater resources for the two major rivers that run through New Mexico and by extension the greater population. Yet, over the …
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Wildfire impacts on western United States snowpack
Snowpack in the western U.S. is critical for water supply and is threatened by wildfires, which are becoming larger and more common. Numerous studies have examined impacts of wildfire on snow water equivalent (SWE), but many of these studies are limited in the number of observation locations, and …
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Simulating Areal Snowcover Depletion and Snowmelt Runoff in Alpine Terrain
… River) is derived from runoff in the headwaters of the Rocky Mountains, where snowmelt represents the greatest single contribution. Increasing concerns over future regional water resource stresses require better understanding and prediction of some alpine snow hydrology components, which …
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Exploring the effects of uncertainty in hydrologic modeling and reconciling spatiotemporal data gaps at the continental scale
… (P), actual evapotranspiration (ET), runoff (R), snow water equivalent (SWE), and soil moisture (SM) from 87 unique datasets generated by 47 hydrologic models, reanalysis datasets, and remote sensing products across the conterminous United States (CONUS). Uncertainty between hydrologic component …
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Snowfall Interception and Ablation in Needleleaf Canopies: Observations and Model Development
Snow falls on forests covering 23% of the global landmass. Here, interception by forest canopies plays a crucial role in the terrestrial water cycle and land-atmosphere energy exchanges. Global changes in climate and vegetation cover have the potential to alter how snowfall is intercepted and …