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1. Snowmelt timing affects short‐term decomposition rates in an alpine snowbed

Author:
Susanna E. Venn; Haydn J. D. Thomas
Source:
Ecosphere 2021 v.12 no.3 pp. e03393
ISSN:
2150-8925
Subject:
snowmelt,   etc   ; Aspalathus linearis; green tea; landscapes; microclimate; nutrient balance; plant litter; snow; snowpack; spring; summer; winter;     Show all 12 Subjects
Abstract:
... . The timing and rate of plant litter decomposition are key controls on the nutrient balance of snowbed communities, and are thought to be strongly driven by snow dynamics. However, little is known about how the patterns and timing of snowmelt affect decomposition, nor how long these effects last into the growing season. We investigated the influence of snowmelt timing on decomposition rates across an alpine ...
DOI:
10.1002/ecs2.3393

2. Analyzing Antarctic ice sheet snowmelt with dynamic Big Earth Data

Author:
Dong Liang; Huadong Guo; Lu Zhang; Mingwei Wang; Lizhe Wang; Lei Liang; Zeeshan Shirazi
Source:
International journal of digital earth 2021 v.14 no.1 pp. 88-105
ISSN:
1753-8955
Subject:
snowmelt,   etc   ; climate; climate change; ice; remote sensing; snow; sustainable development; temperature; time series analysis; Antarctic region; Antarctica;     Show all 11 Subjects
Abstract:
... Earth Data to explore changes in snowmelt over the Antarctic ice sheet from 1979 to 2016. The method uses Zernike moments to observe melt area in Antarctica and uses the Mann-Kendall test to detect temporal changes and abnormal information about the continent's melt area. The melting trend in the time-series data matched the changes in temperature and seasonal transitions. The results do ...
DOI:
10.1080/17538947.2020.1798522

3. Ephemeral gullies caused by snowmelt: A ten-year study in northeastern China

Author:
Jie Tang; Gang Liu; Yun Xie; Xingwu Dun; Daan Wang; Shuai Zhang
Source:
Soil & tillage research 2021 v.212 pp. 105048
ISSN:
0167-1987
Subject:
snowmelt,   etc   ; agricultural land; bulk density; drainage; forest land; forests; gully erosion; research; ridge tillage; runoff; shelterbelts; snow; soil; spring; statistical models; topographic slope; vegetation cover; winter; China;     Show all 19 Subjects
Abstract:
... Ephemeral gully erosion of cultivated land may be serious in early spring because of snowmelt runoff and lack of vegetation cover during this period. The snow in winter is redistributed by winds and accumulates in low-lying gullies, furrows, forest shelterbelts and forest lands, which become the main source of snowmelt runoff in spring. This study selected three different hillslopes according ...
DOI:
10.1016/j.still.2021.105048

4. Impact of climate change on snowmelt runoff in a Himalayan basin, Nepal

Author:
Samit Thapa; Haizhi Li; Bo Li; Donglei Fu; Xiaofei Shi; Stephen Yabo; Lu Lu; Hong Qi; Wei Zhang
Source:
Environmental monitoring and assessment 2021 v.193 no.7 pp. 393
ISSN:
0167-6369
Subject:
snowmelt,   etc   ; basins; climate; climate change; freshwater; hydrograph; monsoon season; neural networks; prediction; rain; river flow; runoff; snow; stream flow; temperature; Himalayan region; Nepal;     Show all 17 Subjects
Abstract:
... . The outputs of climate models were used to project the temperature and precipitation until 2100. Three ML models, including Gated recurrent unit (GRU), Long short-term memory (LSTM), and Recurrent neural network (RNN), were developed for snowmelt runoff prediction, and their performance was compared based on statistical indicators. The result suggests that the mean temperature of the basin could rise ...
DOI:
10.1007/s10661-021-09197-6

5. Evaluation of techniques for mitigating snowmelt infiltration-induced landsliding in a highway embankment

Author:
Eric S. Hinds; Ning Lu; Benjamin B. Mirus; Jonathan W. Godt; Alexandra Wayllace
Source:
Engineering geology 2021 v.291 pp. 106240
ISSN:
0013-7952
Subject:
snowmelt,   etc   ; cost effectiveness; hydraulic conductivity; infrastructure; landslides; remediation; spring; streams; subsurface flow; topographic slope; transportation; Colorado;     Show all 12 Subjects
Abstract:
... of Interstate 70 in Summit County, Colorado (USA), has experienced seasonal failure driven by rapid springtime snowmelt infiltration since the early 1970s, allowing changes in its stability to be studied. Past studies have established that seasonal failure is driven by pore-water pressure increase caused by the rapid infiltration of snowmelt and the hydraulic conductivity contrast between upper slope ...
DOI:
10.1016/j.enggeo.2021.106240

6. Early snowmelt and sea ice breakup enhance algal export in the Beaufort Sea

Author:
Gabrielle Nadaï; Eva-Maria Nöthig; Louis Fortier; Catherine Lalande
Source:
Progress in oceanography 2021 v.190 pp. 102479
ISSN:
0079-6611
Subject:
snowmelt,   etc   ; Nitzschia; Thalassiosira; carbon sequestration; global warming; grazing; ice cover; melting; microalgae; particulate organic carbon; phytoplankton; sea ice; sediment traps; snow; spring; summer; zooplankton; Arctic Ocean; Beaufort Sea;     Show all 19 Subjects
Abstract:
... in 2013 and a premature snowmelt and sea ice breakup that led to an ice-free Beaufort Sea in 2016. Diatoms dominated the microalgal fluxes, with the pelagic centric diatoms Thalassiosira spp. and the ice-associated pennate diatoms Fragilariopsis spp. consistently collected at the three sites. The export of the ice-obligated algae Nitzschia frigida indicated the release of sea ice algae at the onset ...
DOI:
10.1016/j.pocean.2020.102479

7. Do sub-daily temperature fluctuations around the freezing temperature alter macro-scale snowmelt simulations?

Author:
Mohsen Tahmasebi Nasab; Xuefeng Chu
Source:
Journal of hydrology 2021 v.596 pp. 125683
ISSN:
0022-1694
Subject:
snowmelt,   etc   ; energy; hybrids; hydrology; models; snow; temperature; watersheds; Missouri River;     Show all 9 Subjects
Abstract:
... Climate-driven temperature variations manipulate the snowmelt process and affect various aspects of aquatic and terrestrial life. The objective of this study is to evaluate the impacts of sub-daily temperature fluctuations around the freezing temperature on the quantity and spatial distribution of macro-scale snowmelt simulations (i.e., over macro-scale basins and monthly or annual temporal ...
DOI:
10.1016/j.jhydrol.2020.125683

8. Snowpack-stored atmospheric surface-active contaminants traced with snowmelt water surface film rheology

Author:
Stanisław J. Pogorzelski; Paweł Rochowski; Maciej Grzegorczyk; Katarzyna Boniewicz-Szmyt
Source:
Environmental science and pollution research international 2021 v.28 no.5 pp. 5443-5454
ISSN:
0944-1344
Subject:
snowmelt,   etc   ; air pollution; data collection; equations; evolution; hydrochemistry; industrialization; organic matter; polymers; research; rheology; snow; snowpack; solubility; stress relaxation; surfactants; viscoelasticity; Poland;     Show all 18 Subjects
Abstract:
... The aim of the study was to quantify the adsorptive and thermo-elastic properties of snowmelt water surface films and their spatial-temporal evolution with snowpack structure characteristics and the entrapped surface-active organic composition. Surface pressure–area (π-A)T isotherms, surface pressure-temperature (π-T)A isochors, and stress–relaxation (π-t) measurements were performed using ...
DOI:
10.1007/s11356-020-10874-1

9. Past and future snowmelt trends in the Swiss Alps: the role of temperature and snowpack

Author:
Maria Vorkauf; Christoph Marty; Ansgar Kahmen; Erika Hiltbrunner
Source:
Climatic change 2021 v.165 no.3-4 pp. 44
ISSN:
0165-0009
Subject:
snowmelt,   etc   ; air; air temperature; climate change; risk; snow; snowpack; spring; time series analysis; variance;     Show all 10 Subjects
Abstract:
... The start of the growing season for alpine plants is primarily determined by the date of snowmelt. We analysed time series of snow depth at 23 manually operated and 15 automatic (IMIS) stations between 1055 and 2555 m asl in the Swiss Central Alps. Between 1958 and 2019, snowmelt dates occurred 2.8 ± 1.3 days earlier in the year per decade, with a strong shift towards earlier snowmelt dates ...
DOI:
10.1007/s10584-021-03027-x

10. Runoff Projection from an Alpine Watershed in Western Canada: Application of a Snowmelt Runoff Model

Author:
Kyle Siemens; Yonas Dibike; Rajesh R Shrestha; Terry Prowse
Source:
Water 2021 v.13 no.9 pp. -
ISSN:
2073-4441
Subject:
Snowmelt Runoff Model,   etc   ; basins; cold season; heat sums; runoff; snow; snowmelt; snowpack; stream flow; summer; temperature; temporal variation; watersheds; Canada;     Show all 14 Subjects
Abstract:
... The rising global temperature is shifting the runoff patterns of snowmelt-dominated alpine watersheds, resulting in increased cold season flows, earlier spring peak flows, and reduced summer runoff. Projections of future runoff are beneficial in preparing for the anticipated changes in streamflow regimes. This study applied the degree–day Snowmelt Runoff Model (SRM) in combination with the MODIS ...
DOI:
10.3390/w13091199

11. Tracking snowmelt to jump the green wave: phenological drivers of migration in a northern ungulate

Author:
Michel P. Laforge; Maegwin Bonar; Eric Vander Wal
Source:
Ecology 2021 v.102 no.3 pp. e03268
ISSN:
0012-9658
Subject:
snowmelt,   etc   ; Rangifer tarandus; females; forage; life history; phenology; snow; snowpack; spring; travel; ungulates; vegetation;     Show all 12 Subjects
Abstract:
... examined the timing of female caribou (Rangifer tarandus, n = 94) migration and parturition in five herds across 7 yr in Newfoundland, Canada, as a function of two measures of environmental change—snowmelt and vegetation green‐up. We generated resource selection functions to test whether caribou selected for areas associated with snowmelt and green‐up during migration and following calving. We found ...
DOI:
10.1002/ecy.3268

12. Implications of observed changes in high mountain snow water storage, snowmelt timing and melt window

Author:
Emile Elias; Darren James; Sierra Heimel; Caiti Steele; Heidi Steltzer; Cynthia Dott
Source:
Journal of hydrology 2021 v.35 pp. 100799
ISSN:
2214-5818
Subject:
snowmelt,   etc   ; basins; dust; hydrograph; hydrologic cycle; regression analysis; riparian vegetation; runoff; snow; snowpack; sublimation; water storage;     Show all 12 Subjects
Abstract:
... of the snowmelt window using measured data with both linear regression and Mann-Kendall methods to provide an integrated understanding of the trends.Of 16 locations with the longest data record (1980–2018) in the region, more than half had significant declines in maximum SWE. Regional trends using all sites collectively showed a decline in maximum SWE of -0.4 cm/year. Maximum SWE was earlier at 10–13 of 16 ...
DOI:
10.1016/j.ejrh.2021.100799

13. Hydrological, physicochemical and metabolic signatures in groundwater and snowmelt streams in the Japanese Alps

Author:
Fredric M. Windsor; Catherine L. Docherty; Nicolai Brekenfeld; Koji Tojo; Stefan Krause; Alexander M. Milner
Source:
Journal of hydrology 2021 v.600 pp. 126560
ISSN:
0022-1694
Subject:
snowmelt,   etc   ; Japan; biochemical pathways; biodiversity; ecosystems; fauna; flora; groundwater; habitats; hydrochemistry; macrophytes; oxygen; silica; snow; streams; water temperature; Europe; Greenland; South America;     Show all 19 Subjects
Abstract:
... , hydrology, physicochemistry and metabolic activity of snowmelt and groundwater fed streams in the Kamikochi region of the Japanese Alps. Stream discharge, water chemistry (major ions, silica, dissolved oxygen), water temperature and channel stability were measured over a period of 16 months in 2017–2018. Metabolic activity was determined using Resazurin-Resorufin (Raz-Rru) Smart Tracer and variation ...
DOI:
10.1016/j.jhydrol.2021.126560

14. Flowering phenology in alpine grassland strongly responds to shifts in snowmelt but weakly to summer drought

Author:
Maria Vorkauf; Ansgar Kahmen; Christian Körner; Erika Hiltbrunner
Source:
Alpine botany 2021 v.131 no.1 pp. 73-88
ISSN:
1664-2201
Subject:
snowmelt,   etc   ; Anthoxanthum alpinum; Carex; Geum montanum; Helictotrichon; Leontodon; Potentilla; Trifolium alpinum; alpine grasslands; alpine plants; drought; grasses; microclimate; phenology; photoperiod; photoperiodism; risk; snow; summer; temperature;     Show all 20 Subjects
Abstract:
... Alpine plants complete their seasonal phenological cycle during two to three snow-free months. Under climate change, snowmelt advances and the risk of summer droughts increases. Yet, photoperiodism may prevent alpine plants from benefiting from an earlier start of the growing season. To identify the drivers of flowering phenology in the seven main species of an alpine grassland, we experimentally ...
DOI:
10.1007/s00035-021-00252-z

15. Time-series snowmelt detection over the Antarctic using Sentinel-1 SAR images on Google Earth Engine

Author:
Dong Liang; Huadong Guo; Lu Zhang; Yun Cheng; Qi Zhu; Xuting Liu
Source:
Remote sensing of environment 2021 v.256 pp. 112318
ISSN:
0034-4257
Subject:
snowmelt,   etc   ; Internet; climate change; data collection; environment; freeze-thaw cycles; geometry; ice; ice shelf; landscapes; sea level; synthetic aperture radar; time series analysis; wind; Antarctic region; Antarctica;     Show all 16 Subjects
Abstract:
... The Antarctic ice sheet is an important mass of glacier ice. It is particularly sensitive to climate change, and the flow of Antarctica's inland glaciers into the sea, accelerated by collapsing ice shelves, threatens global sea level rise. The amount of snowmelt on the surface of the ice sheet is an important metric for accurately assessing surface material loss and albedo change, which affect ...
DOI:
10.1016/j.rse.2021.112318

16. Effect of snowmelt on the dynamics, isotopic and chemical composition of runoff in mature and regenerated forested catchments

Author:
Y. Vystavna; M. Paule-Mercado; R. Juras; S.I. Schmidt; J. Kopáček; J. Hejzlar; F. Huneau
Source:
Journal of hydrology 2021 v.598 pp. 126437
ISSN:
0022-1694
Subject:
snowmelt,   etc   ; chemical composition; dieback; forests; hydrochemistry; rain; runoff; snow; snowpack; spring; stable isotopes; surface water; throughfall; trees; winter;     Show all 15 Subjects
Abstract:
... Using isotopic and hydrochemical tools, we focused our study on water and element fluxes with snowmelt in two headwater catchments with different forest stands. One catchment is with mature, and the other catchment is with forest regenerating after a tree dieback. Sampling and analysis of the surface water and precipitation throughout one hydrological year, and of snowpack in snow season, enabled ...
DOI:
10.1016/j.jhydrol.2021.126437

17. Analysis of seasonal snowmelt contribution using a distributed energy balance model for a river basin in the Altai Mountains of northwestern China

Author:
Xuejiao Wu; Wei Zhang; Hongyi Li; Yinping Long; Xiaoduo Pan; Yongping Shen
Source:
Hydrological processes 2021 v.35 no.3 pp. e14046
ISSN:
0885-6087
Subject:
snowmelt,   etc   ; cold; energy balance; evaporation; freshwater; hydrologic cycle; meteorological data; models; observational studies; prediction; rivers; runoff; snow; snowpack; spring; watersheds; China;     Show all 17 Subjects
Abstract:
... Snowmelt water is a vital freshwater resource in the Altai Mountains of northwestern China. Yet its seasonal hydrological cycle characteristics could change under a warming climate and more rapid spring snowmelt. Here, we simulated snowmelt runoff dynamics in the Kayiertesi River catchment, from 2000 to 2016, by using an improved hydrological distribution model that relied on high‐resolution ...
DOI:
10.1002/hyp.14046

18. Stable isotopes of water and specific conductance reveal complimentary information on streamflow generation in snowmelt-dominated, seasonally arid watersheds

Author:
Samuel A. Miller; Jason J. Mercer; Steve W. Lyon; David G. Williams; Scott N. Miller
Source:
Journal of hydrology 2021 v.596 pp. 126075
ISSN:
0022-1694
Subject:
snowmelt,   etc   ; fractionation; hydrograph; rain; runoff; snowpack; spring; stable isotopes; stream flow; streams; summer; uncertainty; watersheds; Wyoming;     Show all 14 Subjects
Abstract:
... spring snowmelt and for one summer rain event at two seasonally arid, montane watersheds in southeastern Wyoming using two independent tracer systems: Stable water isotopes (¹⁸O and ²H; 1–4 h resolution) and specific conductance (SC; 15 min resolution). Event water dominated streamflow generation during snowmelt using both tracers, but much lower uncertainty in hydrograph separations were achieved ...
DOI:
10.1016/j.jhydrol.2021.126075

19. Snowmelt characteristics in a pristine mountain catchment of the Jalovecký Creek, Slovakia, over the last three decades

Author:
Ladislav Holko; Michal Danko; Patrik Sleziak
Source:
Hydrological processes 2021 v.35 no.4 pp. e14128
ISSN:
0885-6087
Subject:
snowmelt,   etc   ; air; air temperature; cold; hydrologic cycle; runoff; snow; snowpack; spring; stream flow; streams; watersheds; wavelet; Slovakia;     Show all 14 Subjects
Abstract:
... be related to the cold part of the year, direct links with snow storage and the contribution of snowmelt water to catchment runoff were not confirmed. The second part of the article is therefore focused on an analysis of daily cycles in streamflow in March to June 1988–2018 to obtain a deeper insight into the snowmelt process. We describe characteristics of the cycles and examine their variability over ...
DOI:
10.1002/hyp.14128

20. Introducing intense rainfall and snowmelt variables to implement a process-related non-stationary shallow landslide susceptibility analysis

Author:
Corrado A.S. Camera; Greta Bajni; Irene Corno; Mattia Raffa; Stefania Stevenazzi; Tiziana Apuani
Source:
Science of the total environment 2021 v.786 pp. 147360
ISSN:
0048-9697
Subject:
snowmelt,   etc   ; evolution; hydrology; land cover; landslides; model validation; models; rain; variance; Italy;     Show all 10 Subjects
Abstract:
... the relationships between landslide occurrences and intense rainfall and snowmelt events (period 1991–2020). For landslide susceptibility mapping, we set up a Generalized Additive Model. We defined a reference model through variable penalization (relief, NDVI, land cover and geology predictors). Similarly, we optimized a model including the climate variables, checking their smooth functions to ensure physical ...
DOI:
10.1016/j.scitotenv.2021.147360