scholarly journals On thin ice: Linking elevation and long‐term losses of lake ice cover

2021 ◽  
Vol 6 (2) ◽  
pp. 77-84
Author(s):  
Kyle R. Christianson ◽  
Kelly A. Loria ◽  
Peter D. Blanken ◽  
Nel Caine ◽  
Pieter T. J. Johnson
Keyword(s):  
Ice Cover ◽  
Lake Ice ◽  
Lake Ice Cover

scholarly journals Terms and conditions of high-mountain lake ice-cover chemistry (Carpathians, Poland)

2015 ◽  
Vol 61 (230) ◽  
pp. 1207-1212 ◽  
Author(s):  
Iwona Kurzyca ◽  
Adam Choiński ◽  
Joanna Pociask-Karteczka ◽  
Agnieszka Lawniczak ◽  
Marcin Frankowski
Keyword(s):  
Water Body ◽  
Ice Cover ◽  
Multilayered Structure ◽  
Mountain Lake ◽  
High Mountain ◽  
Lake Ice ◽  
High Mountain Lake ◽  
Spatial Diversification ◽  
The Tatra Mountains

AbstractWe discuss the results of an investigation of the chemical composition of the ice cover on the high-mountain lake Morskie Oko in the Tatra Mountains, Carpathians, Poland. In the years 2007–13, the ice cover was characterized by an average duration of 6 months, a thickness range of 0.40–1.14 m, and a multilayered structure with water or slush inclusion. In water from the melted ice cover, chloride (max. 69%) and sulphate (max. 51%) anions and ammonium (max. 66%) and calcium (max. 78%) cations predominated. Different concentrations of ions (F−, Cl−, NO3−, SO42−, Na+, K+, Mg2+, Ca2+, NH4+) in the upper, middle and bottom layers of ice were observed, along with long-term variability and spatial diversification within the ice layer over the lake. Snowpack lying on the ice and the water body under the ice were also investigated, and the influence on the ice cover of certain ions in elevated concentrations was observed (e.g. Cl− in the upper ice cover and the snowpack, and Ca2+ in the bottom ice cover and water body).

scholarly journals Calving Seasonality Associated With Melt‐Undercutting and Lake Ice Cover

2020 ◽  
Vol 47 (8) ◽  
Author(s):  
Joseph Mallalieu ◽  
Jonathan L. Carrivick ◽  
Duncan J. Quincey ◽  
Mark W. Smith
Keyword(s):  
Ice Cover ◽  
Lake Ice ◽  
Lake Ice Cover

Simulation of North American lake-ice cover characteristics under contemporary and future climate conditions

2011 ◽  
Vol 32 (5) ◽  
pp. 695-709 ◽  
Author(s):  
Yonas Dibike ◽  
Terry Prowse ◽  
Barrie Bonsal ◽  
Laurent de Rham ◽  
Tuomo Saloranta
Keyword(s):  
North American ◽  
Ice Cover ◽  
Future Climate ◽  
Lake Ice ◽  
Climate Conditions ◽  
Lake Ice Cover

scholarly journals Changes in Lake Ice Cover on the Morskie Oko Lake in Poland (1971-2007)

2013 ◽  
Vol 1 (2) ◽  
pp. 71-75
Author(s):  
Choiński Adam ◽  
Kolendowicz Leszek ◽  
Pociask-Karteczka Joanna ◽  
Sobkowiak Leszek
Keyword(s):  
Ice Cover ◽  
Lake Ice ◽  
Lake Ice Cover

scholarly journals Decay of a High Arctic lake-ice cover: observations and modelling

1994 ◽  
Vol 40 (135) ◽  
pp. 283-292 ◽  
Author(s):  
Richard Heron ◽  
Ming-Ko Woo
Keyword(s):  
Energy Balance ◽  
Ice Cover ◽  
High Arctic ◽  
Shortwave Radiation ◽  
Balance Model ◽  
Lake Ice ◽  
Ice Melt ◽  
Density Reduction ◽  
Ice Water ◽  
Lake Ice Cover

AbstractThe decay of a lake-ice cover in the Canadian High Arctic was studied for 2 years. Melt at the upper surface accounted for 75% of the decrease in ice thickness, while 25% occurred at the ice–water interface. An energy-balance model, incorporating density reduction due to internal ice melt, was used to simulate the decay of the ice cover. The overall performance of the model was satisfactory despite periods when computed results differed from the observed ice decay. Energy-balance calculations indicated that the absorption of shortwave radiation within the ice provided 52% of the melt energy while 33 and 15% came from the surface-energy balance and heat flux from the water.

Phenology of alpine zooplankton populations and the importance of lake ice-out

2020 ◽  
Author(s):  
Kelly A Loria ◽  
Kyle R Christianson ◽  
Pieter T J Johnson
Keyword(s):  
Open Water ◽  
Ice Cover ◽  
Lake Ice ◽  
Aquatic Life ◽  
Phenological Shifts ◽  
Hesperodiaptomus Shoshone ◽  
Term Data ◽  
Alpine Zooplankton ◽  
Observation Period

Abstract The prolonged ice cover inherent to alpine lakes incurs unique challenges for aquatic life, which are compounded by recent shifts in the timing and duration of ice cover. To understand the responses of alpine zooplankton, we analyzed a decade (2009–2019) of open-water samples of Daphnia pulicaria and Hesperodiaptomus shoshone for growth, reproduction and ultraviolet radiation tolerance. Due to reproductive differences between taxa, we expected clonal cladocerans to exhibit a more rapid response to ice-cover changes relative to copepods dependent on sexual reproduction. For D. pulicaria, biomass and melanization were lowest after ice clearance and increased through summer, whereas fecundity was highest shortly after ice-off. For H. shoshone, biomass and fecundity peaked later but were generally less variable through time. Among years, ice clearance date varied by 49 days; years with earlier ice-out and a longer growing season supported higher D. pulicaria biomass and clutch sizes along with greater H. shoshone fecundity. While these large-bodied, stress tolerant zooplankton taxa were relatively resilient to phenological shifts during the observation period, continued losses of ice cover may create unfavorably warm conditions and facilitate invasion by montane species, emphasizing the value of long-term data in assessing future changes to these sensitive ecosystems.

scholarly journals Decay of a High Arctic lake-ice cover: observations and modelling

1994 ◽  
Vol 40 (135) ◽  
pp. 283-292 ◽  
Author(s):  
Richard Heron ◽  
Ming-Ko Woo
Keyword(s):  
Energy Balance ◽  
Ice Cover ◽  
High Arctic ◽  
Shortwave Radiation ◽  
Balance Model ◽  
Lake Ice ◽  
Ice Melt ◽  
Density Reduction ◽  
Ice Water ◽  
Lake Ice Cover

AbstractThe decay of a lake-ice cover in the Canadian High Arctic was studied for 2 years. Melt at the upper surface accounted for 75% of the decrease in ice thickness, while 25% occurred at the ice–water interface. An energy-balance model, incorporating density reduction due to internal ice melt, was used to simulate the decay of the ice cover. The overall performance of the model was satisfactory despite periods when computed results differed from the observed ice decay. Energy-balance calculations indicated that the absorption of shortwave radiation within the ice provided 52% of the melt energy while 33 and 15% came from the surface-energy balance and heat flux from the water.

Decadal Variability of Great Lakes Ice Cover in Response to AMO and PDO, 1963–2017

2018 ◽  
Vol 31 (18) ◽  
pp. 7249-7268 ◽  
Author(s):  
Jia Wang ◽  
James Kessler ◽  
Xuezhi Bai ◽  
Anne Clites ◽  
Brent Lofgren ◽  
...  
Keyword(s):  
Surface Temperature ◽  
Great Lakes ◽  
Regression Model ◽  
Decadal Variability ◽  
Ice Cover ◽  
Lake Surface ◽  
Lake Ice ◽  
Relationship Of ◽  
The Relationship ◽  
Lake Ice Cover

Abstract In this study, decadal variability of ice cover in the Great Lakes is investigated using historical airborne and satellite measurements from 1963 to 2017. It was found that Great Lakes ice cover has 1) a linear relationship with the Atlantic multidecadal oscillation (AMO), similar to the relationship of lake ice cover with the North Atlantic Oscillation (NAO), but with stronger impact than NAO; 2) a quadratic relationship with the Pacific decadal oscillation (PDO), which is similar to the relationship of lake ice cover to Niño-3.4, but with opposite curvature; and 3) decadal variability with a positive (warming) trend in AMO contributes to the decreasing trend in lake ice cover. Composite analyses show that during the positive (negative) phase of AMO, the Great Lakes experience a warm (cold) anomaly in surface air temperature (SAT) and lake surface temperature (LST), leading to less (more) ice cover. During the positive (negative) phase of PDO, the Great Lakes experience a cold (warm) anomaly in SAT and LST, leading to more (less) ice cover. Based on these statistical relationships, the original multiple variable regression model established using the indices of NAO and Niño-3.4 only was improved by adding both AMO and PDO, as well as their interference (interacting or competing) mechanism. With the AMO and PDO added, the correlation between the model and observation increases to 0.69, compared to 0.48 using NAO and Niño-3.4 only. When November lake surface temperature was further added to the regression model, the prediction skill of the coming winter ice cover increased even more.

Coherence between lake ice cover, local climate and teleconnections (Lake Mendota, Wisconsin)

2009 ◽  
Vol 374 (3-4) ◽  
pp. 282-293 ◽  
Author(s):  
Reza Namdar Ghanbari ◽  
Hector R. Bravo ◽  
John J. Magnuson ◽  
William G. Hyzer ◽  
Barbara J. Benson
Keyword(s):  
Ice Cover ◽  
Lake Ice ◽  
Local Climate ◽  
Lake Mendota ◽  
Lake Ice Cover
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