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1. Transport of oxygen into granitic rocks: Role of physical and mineralogical heterogeneity

Author:
Trinchero, Paolo; Sidborn, Magnus; Puigdomenech, Ignasi; Svensson, Urban; Ebrahimi, Hedieh; Molinero, Jorge; Gylling, Björn; Bosbach, Dirk; Deissmann, Guido
Source:
Journal of contaminant hydrology 2019 v.220 pp. 108-118
ISSN:
0169-7722
Subject:
snowmelt,   etc   ; biotite; oxygen; radionuclides; rocks; surface area;     Show all 6 Subjects
Abstract:
... The rock matrix of granites is expected to be an important buffer against the dispersion of contaminants, e.g. radionuclides, and against the ingress of oxygenated glacial meltwater. The influence of matrix heterogeneity on O2 diffusive transport is assessed here by means of numerical experiments based on a micro-Discrete Fracture Network (micro-DFN) representation of the diffusion-available pore ...
DOI:
10.1016/j.jconhyd.2018.12.001

2. The vertical influence of temperature and precipitation on snow cover variability in the Central Tianshan Mountains, Northwest China

Author:
Wu, Senyao; Zhang, Xueliang; Du, Jinkang; Zhou, Xiaobing; Tuo, Ye; Li, Runjie; Duan, Zheng
Source:
Hydrological processes 2019 v.33 no.12 pp. 1686-1697
ISSN:
0885-6087
Subject:
snowmelt,   etc   ; altitude; climate; hydrology; mountains; snow; snowpack; temperature; China;     Show all 9 Subjects
Abstract:
... Seasonal snow cover in mountainous regions will affect local climate and hydrology. In this study, we assessed the role of altitude in determining the relative importance of temperature and precipitation in snow cover variability in the Central Tianshan Mountains. The results show that: (a) in the study area, temperature has a greater influence on snow cover than precipitation during most of the t ...
DOI:
10.1002/hyp.13431

3. Switch in chemical weathering caused by the mass balance variability in a Himalayan glacierized basin: a case of Chhota Shigri Glacier

Author:
Kumar, Naveen; Ramanathan, AL.; Tranter, Martyn; Sharma, Parmanand; Pandey, Manish; Ranjan, Prabhat; Raju, N. Janardhan
Source:
Hydrological sciences journal 2019 v.64 no.2 pp. 179-189
ISSN:
2150-3435
Subject:
snowmelt,   etc   ; basins; chemistry; drainage systems; glaciers; runoff; solutes; weathering; India;     Show all 9 Subjects
Abstract:
... Long-term data (2003–2015) on meltwater chemistry, mass balance and discharge of a benchmark glacier (Chhota Shigri Glacier, India) were studied to determine any association between these variables. To infer the factors governing the alteration of chemical weathering processes in glacierized basins, multi-annual records of the hydrochemical indices (Ca²⁺+Mg²⁺/Na⁺+K⁺) and the C-ratio were also exam ...
DOI:
10.1080/02626667.2019.1572152

4. A progressive segmented optimization algorithm for calibrating time-variant parameters of the snowmelt runoff model (SRM)

Author:
Xie, Shunping; Du, Jinkang; Zhou, Xiaobing; Zhang, Xueliang; Feng, Xuezhi; Zheng, Wenlong; Li, Zhiguang; Xu, Chong-Yu
Source:
Journal of hydrology 2018 v.566 pp. 470-483
ISSN:
0022-1694
Subject:
Snowmelt Runoff Model; snowmelt,   etc   ; algorithms; model validation; stream flow; temporal variation; watersheds; China;     Show all 8 Subjects
Abstract:
... To capture the temporal variability of parameters of hydrological models, the segmented optimization algorithm (SOA) is usually used which subdivides the calibration period into a number of sub-periods and seeks optimal parameters for each sub-period by optimizing the objective function based on the measured and estimated data in the same sub-period. In this paper, we developed a new method that i ...
DOI:
10.1016/j.jhydrol.2018.09.030

5. An automated method for mapping geomorphological expressions of former subglacial meltwater pathways (hummock corridors) from high resolution digital elevation data

Author:
Lewington, Emma L.M.; Livingstone, Stephen J.; Sole, Andrew J.; Clark, Chris D.; Ng, Felix S.L.
Source:
Geomorphology 2019 v.339 pp. 70-86
ISSN:
0169-555X
Subject:
snowmelt,   etc   ; automation; digital elevation models; glaciers; ice; morphometry; roughness; Canada; Scandinavia;     Show all 9 Subjects
Abstract:
... Elongated tracts of hummocks or ‘hummock corridors’, exposed on palaeo-ice sheet beds, are believed to represent former subglacial meltwater pathways. Here, we present a method, coded in MATLAB, for automatically detecting and mapping hummock corridors from high-resolution digital elevation models (DEMs). Initially the DEM is filtered to remove bed roughness outside the size range of hummocks. A F ...
DOI:
10.1016/j.geomorph.2019.04.013

6. Parabolic antenna snow melting and removal using waste heat from the transmitter room

Author:
Lan, Yun Cheng; Li, Cheng; Wang, Sui Lin
Source:
Energy 2019 v.181 pp. 738-744
ISSN:
0360-5442
Subject:
snowmelt,   etc   ; air; air conditioning; energy use and consumption; equipment; heat; melting; satellites; snow; wind speed;     Show all 10 Subjects
Abstract:
... This study simulated snow melting and removal using hot waste heat air generated in a transmitter room which was used to melt and remove snow from a satellite antenna. The air was supplied at 30 °C and 20 m/s and removed the 10 mm thick snow cover within 17.6 min with the snowmelt consuming 135 W/m2 with an average melting rate of 0.57 mm/min. The heat dissipation from the waste heat air to melt s ...
DOI:
10.1016/j.energy.2019.05.215

7. Rock glaciers in Pearse Valley, Antarctica record outlet and alpine glacier advance from MIS 5 through the Holocene

Author:
Swanger, Kate M.; Babcock, Esther; Winsor, Kelsey; Valletta, Rachel D.
Source:
Geomorphology 2019 v.336 pp. 40-51
ISSN:
0169-555X
Subject:
snowmelt,   etc   ; glaciers; ground-penetrating radar; ice; oxygen; paleoclimatology; sediments; stable isotopes; streams; valleys; Antarctic region; Antarctica;     Show all 12 Subjects
Abstract:
... Rock glaciers and buried ice are common in the McMurdo Dry Valleys, Antarctica. In central Taylor and Pearse valleys rock glaciers cover at least 10% of the valley walls and occur at elevations of 300–800 m above sea level. We investigate the origin and geomorphology of a ~1.5 km2 rock glacier in northern Pearse Valley, the westernmost extension of Taylor Valley. The rock glacier is cored by spora ...
DOI:
10.1016/j.geomorph.2019.03.019

8. Plasticity in elk migration timing is a response to changing environmental conditions

Author:
Rickbeil, Gregory J. M.; Merkle, Jerod A.; Anderson, Greg; Atwood, M. Paul; Beckmann, Jon P.; Cole, Eric K.; Courtemanch, Alyson B.; Dewey, Sarah; Gustine, David D.; Kauffman, Matthew J.; McWhirter, Douglas E.; Mong, Tony; Proffitt, Kelly; White, Patrick J.; Middleton, Arthur D.
Source:
Global change biology 2019 v.25 no.7 pp. 2368-2381
ISSN:
1354-1013
Subject:
snowmelt,   etc   ; autumn; climatic factors; ecosystems; elks; forage; herds; phenology; snow; spring; summer; telemetry; winter;     Show all 13 Subjects
Abstract:
... Migration is an effective behavioral strategy for prolonging access to seasonal resources and may be a resilient strategy for ungulates experiencing changing climatic conditions. In the Greater Yellowstone Ecosystem (GYE), elk are the primary ungulate, with approximately 20,000 individuals migrating to exploit seasonal gradients in forage while also avoiding energetically costly snow conditions. H ...
DOI:
10.1111/gcb.14629

9. Plutonium fallout reconstructed from an Antarctic Plateau snowpack using inductively coupled plasma sector field mass spectrometry

Author:
Hwang, Heejin; Hur, Soon Do; Lee, Jeonghoon; Han, Yeongcheol; Hong, Sungmin; Motoyama, Hideaki
Source:
The Science of the total environment 2019 v.669 pp. 505-511
ISSN:
0048-9697
Subject:
snowmelt,   etc   ; ice; mass spectrometry; melting; plutonium; snow; snowpack; sulfates; Antarctic region;     Show all 9 Subjects
Abstract:
... Anthropogenic plutonium (Pu) in the environment is a result of atmospheric nuclear testing during the second half of the 20th century. In this work, we analyzed a 4-meter deep Antarctic Plateau snowpack characterized by a low snow accumulation rate and negligible snow impurities. These sample conditions enabled us to measure the snowpack Pu fallout by applying inductively coupled plasma sector fie ...
DOI:
10.1016/j.scitotenv.2019.03.105

10. Changes in the Rate of Soil Loss in River Basins within the Southern Part of European Russia

Author:
Mal’tsev, K. A.; Ivanov, M. A.; Sharifullin, A. G.; Golosov, V. N.
Source:
Eurasian soil science 2019 v.52 no.6 pp. 718-727
ISSN:
1064-2293
Subject:
snowmelt,   etc   ; Universal Soil Loss Equation; crops; forest steppe; forests; landscapes; rain; runoff; soil erosion; watersheds; Russia;     Show all 11 Subjects
Abstract:
... Four river basins located in the forest, forest-steppe, and steppe zones of European Russia were evaluated for two time intervals (1960–1985 and 1986–2015) based on the use of the Universal Soil Loss Equation (USLE) and State Hydrological Institute (SHI) models. The obtained results attest to multidirectional tendencies in the mean annual rates of erosion rates in different landscape zones. The ra ...
DOI:
10.1134/S1064229319060097

11. Understanding subgrid variability of snow depth at 1‐km scale using Lidar measurements

Author:
He, Siwei; Ohara, Noriaki; Miller, Scott N.
Source:
Hydrological processes 2019 v.33 no.11 pp. 1525-1537
ISSN:
0885-6087
Subject:
snowmelt,   etc   ; energy balance; forests; geostatistics; hydrology; land cover; lidar; models; mountains; normal distribution; snow; Wyoming;     Show all 12 Subjects
Abstract:
... It is well known that snow plays an important role in land surface energy balance; however, modelling the subgrid variability of snow is still a challenge in large‐scale hydrological and land surface models. High‐resolution snow depth data and statistical methods can reveal some characteristics of the subgrid variability of snow depth, which can be useful in developing models for representing such ...
DOI:
10.1002/hyp.13415

12. Effects of snow-depth change on spring runoff in cryosphere areas of China

Author:
Liu, Xiaojiao; Chen, Rensheng; Liu, Junfeng; Wang, Xiqiang; Zhang, Baogui; Han, Chuntan; Liu, Guohua; Guo, Shuhai; Liu, Zhangwen; Song, Yaoxuan; Yang, Yong; Zheng, Qin; Wang, Lei
Source:
Hydrological sciences journal 2019 v.64 no.7 pp. 789-797
ISSN:
2150-3435
Subject:
snowmelt,   etc   ; cold; cold season; global warming; mountains; runoff; snow; spring; temperature; watersheds; China;     Show all 11 Subjects
Abstract:
... Based on snow-depth and measured runoff data in the 19 river basins of the cryosphere areas of China, changes in cold season snow depth (CSSD) and spring runoff, and the relationship between CSSD and spring runoff were analysed. Decreasing trends in CSSD were detected mainly in the plains (plateaus), while increasing trends were found mainly in the mountainous regions. Different combinations of pr ...
DOI:
10.1080/02626667.2019.1599486

13. Evolution of debris flow and moraine failure in the Gangotri Glacier region, Garhwal Himalaya: Hydro-geomorphological aspects

Author:
Kumar, Amit; Bhambri, Rakesh; Tiwari, Sameer Kumar; Verma, Akshaya; Gupta, Anil Kumar; Kawishwar, Prashant
Source:
Geomorphology 2019 v.333 pp. 152-166
ISSN:
0169-555X
Subject:
snowmelt,   etc   ; glaciation; glaciers; hydrometeorology; lakes; mass movement; rain; remote sensing; sediments; streams; suspended sediment; Himalayan region;     Show all 12 Subjects
Abstract:
... A debris flow occurred in the foreland of Gangotri Glacier by its former tributary, Meru (Bamak) Glacier between 16 and 19 July 2017. We investigated the debris flow using pre- and post-event field observations; hydro-meteorological data along with remote sensing assessments to understand the mechanism and evolution of the debris flow. A large volume of sediments (−7.9 × 106 m3 ± 0.1 × 106 m3) mov ...
DOI:
10.1016/j.geomorph.2019.02.015

14. Snow cover area change and its relations with climatic variability in Kashmir Himalayas, India

Author:
Shafiq, Mifta ul; Ahmed, Pervez; Islam, Zahoor ul; Joshi, P. K.; Bhat, Waseem A.
Source:
Geocarto international 2019 v.34 no.6 pp. 688-702
ISSN:
1752-0762
Subject:
snowmelt,   etc   ; climate; hydrology; moderate resolution imaging spectroradiometer; snowpack; statistical analysis; temperature; Himalayan region; India;     Show all 9 Subjects
Abstract:
... Snowmelt makes an essential component of the hydrological system of Kashmir Himalayas. The present study was carried out to examine the status of Snow Cover Area (SCA) using Moderate Resolution Imaging Spectroradiometer (MODIS) 8-day Snow Cover Product between 2000 and 2016. The intra- and inter-annual variability in SCA and in meteorological parameters was observed and various statistical tests w ...
DOI:
10.1080/10106049.2018.1469675

15. Method for Correcting Continuous Ice-Core Elemental Measurements for Under-Recovery

Author:
Arienzo, Monica M.; McConnell, Joseph R.; Chellman, Nathan; Kipfstuhl, Sepp
Source:
Environmental science & technology 2019 v.53 no.10 pp. 5887-5894
ISSN:
1520-5851
Subject:
snowmelt,   etc   ; acidification; aerosols; aluminum; cadmium; calcium; ice; iron; magnesium; manganese; particulates; sodium; strontium; Antarctica; Greenland;     Show all 15 Subjects
Abstract:
... Measurement of elemental concentrations in ice cores are critical for determining atmospheric aerosol variations. For such measurements, acidified ice-core meltwater typically is analyzed continuously (<5 min after acidification) or discretely (∼3 months after acidification). The reduced acidification time during continuous analysis may result in a measured elemental concentration that is lower th ...
DOI:
10.1021/acs.est.9b00199

16. Amery Ice Shelf surface snowmelt detected by ASCAT and Sentinel-1

Author:
Zhou, Chunxia; Zheng, Lei; Sun, Qizhen; Liu, Ruixi
Source:
Remote sensing letters 2019 v.10 no.5 pp. 430-438
ISSN:
2150-7058
Subject:
snowmelt,   etc   ; global warming; ice; melting; remote sensing; snow; summer; synthetic aperture radar; wind direction;     Show all 9 Subjects
Abstract:
... Widespread movement of meltwater has been found on the Amery Ice Shelf (AIS). Intensive surface snowmelt could accelerate ice loss and endanger the ice shelves under climate warming. In this study, the Advanced Scatterometer (ASCAT) was used to study the detailed melt patterns on the AIS, which was confirmed by the wet snow mapped by Sentinel-1 Synthetic Aperture Radar (SAR) images with a much hig ...
DOI:
10.1080/2150704X.2018.1553317

17. Climate background, relative rate, and runoff effect of multiphase water transformation in Qilian Mountains, the third pole region

Author:
Li, Zongxing; Yuan, Ruifeng; Feng, Qi; Zhang, Baijuan; Lv, Yueming; Li, Yongge; Wei, Wei; Chen, Wen; Ning, Tingting; Gui, Juan; Shi, Yang
Source:
The Science of the total environment 2019 v.663 pp. 315-328
ISSN:
0048-9697
Subject:
snowmelt,   etc   ; climate; flood control; glaciers; mountains; permafrost; rivers; runoff; snow; vegetation; China;     Show all 11 Subjects
Abstract:
... Multiphase water transformation has great effects on alpine hydrology, but these effects remain unclear in the third pole region. Taking the Qilian Mountains as an example, the climate background and relative rates of multiphase water transformation were analyzed, and the runoff effect was evaluated based on long-term field observations. There are three climatic aspects driving multiphase water tr ...
DOI:
10.1016/j.scitotenv.2019.01.339

18. Spatial-temporal analysis and risk characterisation of pesticides in Alpine glacial streams

Author:
Rizzi, C.; Finizio, A.; Maggi, V.; Villa, S.
Source:
Environmental pollution 2019 v.248 pp. 659-666
ISSN:
0269-7491
Subject:
snowmelt,   etc   ; aquatic ecosystems; chlorpyrifos; glaciers; ice; melting; risk; streams; summer; terbuthylazine; water quality; Alps region; Italy;     Show all 13 Subjects
Abstract:
... We analysed the spatial and temporal distribution of a selection of pesticides in Alpine glaciers used on the Po Plain in Northern Italy, near the Alps. By analysing a 102-m ice core taken from the Lys Glacier (Monte Rosa massif, Italy), we highlight historical contamination from the insecticide chlorpyrifos and the herbicide terbuthylazine, confirming the role of alpine glaciers as temporal sinks ...
DOI:
10.1016/j.envpol.2019.02.067

19. Understanding flooding in poljes: a modelling perspective

Author:
Mayaud, Cyril; Gabrovšek, Franci; Blatnik, Matej; Kogovšek, Blaž; Petrič, Metka; Ravbar, Nataša
Source:
Journal of hydrology 2019
ISSN:
0022-1694
Subject:
snowmelt,   etc   ; aquifers; floods; humid zones; karsts; lakes; mathematical models; rain; villages;     Show all 9 Subjects
Abstract:
... Poljes are large flat closed depressions that can be found in most karst areas around the world. They are prone to regular flooding, which occurs after abundant rainfall or snowmelt events. The floods can form several meters deep intermittent lakes that can persist for months. Human settlements around poljes have been traditionally positioned above the level of the most severe floods. However, man ...
DOI:
10.1016/j.jhydrol.2019.04.092

20. Snow and Ice melt contributions in a highly glacierized catchment of Chhota Shigri Glacier (India) over the last five decades

Author:
Farooq Azam, Mohd.; Wagnon, P.; Vincent, C.; Ramanathan, AL.; Kumar, N.; Srivastava, S.; Pottakkal, J.G.; Chevallier, P.
Source:
Journal of hydrology 2019
ISSN:
0022-1694
Subject:
snowmelt,   etc   ; air temperature; altitude; glaciers; ice; melting; models; rain; runoff; summer; watersheds; winter; India;     Show all 13 Subjects
Abstract:
... Glacier-wide mass balances and runoffs are reconstructed over 1969-2016 for Chhota Shigri Glacier catchment (India) applying a glacio-hydrological model. The model is forced using in-situ daily air-temperature and precipitation records from the meteorological stations at Bhuntar Observatory (1092 m a.s.l.), glacier base camp (3850 m a.s.l.) and glacier side moraine (4863 m a.s.l.). The modelled me ...
DOI:
10.1016/j.jhydrol.2019.04.075