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Statements

Subject Item
n2:RIV%2F00216208%3A11310%2F13%3A10173806%21RIV14-GA0-11310___
rdf:type
skos:Concept n18:Vysledek
rdfs:seeAlso
http://dx.doi.org/10.1002/wrcr.20261
dcterms:description
Diamond Lake in Minnesota is covered every winter with ice and snow providing a modified thermal insulation between water and air. Autonomous temperature sensors, data loggers, were placed in this lake so that hourly measurements could be obtained from the snow-covered ice and water. The sensors that became frozen measured damped and delayed thermal response from the air-temperature fluctuation. Those sensors that were deeper within the snow-covered ice measured continuous, almost constant, temperature values near freezing. Several of them were within the liquid water and responded with a fluctuation of 24 h periods of amplitudes up to 0.2oC. Our analysis of the vertical temperature profiles suggested that the source of periodic water heating comes from the lake bottom. Because of the absence of daily temperature variations of the snow-covered ice, the influence of the air-temperature fluctuation can be ruled out. We attribute the heating process to the periodic inflow of groundwater to the lake and the cooling to the heat diffusion to the overlying ice cover. The periodic groundwater inflow is interpreted due to solid Earth tides, which cause periodic fluctuations of the groundwater pressure head. Diamond Lake in Minnesota is covered every winter with ice and snow providing a modified thermal insulation between water and air. Autonomous temperature sensors, data loggers, were placed in this lake so that hourly measurements could be obtained from the snow-covered ice and water. The sensors that became frozen measured damped and delayed thermal response from the air-temperature fluctuation. Those sensors that were deeper within the snow-covered ice measured continuous, almost constant, temperature values near freezing. Several of them were within the liquid water and responded with a fluctuation of 24 h periods of amplitudes up to 0.2oC. Our analysis of the vertical temperature profiles suggested that the source of periodic water heating comes from the lake bottom. Because of the absence of daily temperature variations of the snow-covered ice, the influence of the air-temperature fluctuation can be ruled out. We attribute the heating process to the periodic inflow of groundwater to the lake and the cooling to the heat diffusion to the overlying ice cover. The periodic groundwater inflow is interpreted due to solid Earth tides, which cause periodic fluctuations of the groundwater pressure head.
dcterms:title
Temperature fluctuations underneath the ice in Diamond Lake, Hennepin County, Minnesota Temperature fluctuations underneath the ice in Diamond Lake, Hennepin County, Minnesota
skos:prefLabel
Temperature fluctuations underneath the ice in Diamond Lake, Hennepin County, Minnesota Temperature fluctuations underneath the ice in Diamond Lake, Hennepin County, Minnesota
skos:notation
RIV/00216208:11310/13:10173806!RIV14-GA0-11310___
n18:predkladatel
n20:orjk%3A11310
n3:aktivita
n4:Z n4:I n4:P
n3:aktivity
I, P(GA205/09/1879), P(IAA300120905), P(LK21303), Z(AV0Z30120515), Z(AV0Z30130516), Z(MSM0021620855)
n3:cisloPeriodika
6
n3:dodaniDat
n5:2014
n3:domaciTvurceVysledku
n7:8908168 n7:3822346 n7:2224445
n3:druhVysledku
n21:J
n3:duvernostUdaju
n8:S
n3:entitaPredkladatele
n16:predkladatel
n3:idSjednocenehoVysledku
110264
n3:idVysledku
RIV/00216208:11310/13:10173806
n3:jazykVysledku
n22:eng
n3:klicovaSlova
baroclinic seiches; Lacustrine temperature; Lacustrine ice; Lacustrine water; ground water; tides
n3:klicoveSlovo
n6:ground%20water n6:Lacustrine%20ice n6:Lacustrine%20temperature n6:Lacustrine%20water n6:baroclinic%20seiches n6:tides
n3:kodStatuVydavatele
SI - Slovinská republika
n3:kontrolniKodProRIV
[F66822484245]
n3:nazevZdroje
Water Resources Research
n3:obor
n19:DB
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
4
n3:projekt
n11:LK21303 n11:IAA300120905 n11:GA205%2F09%2F1879
n3:rokUplatneniVysledku
n5:2013
n3:svazekPeriodika
49
n3:tvurceVysledku
Mls, Jiří Dedecek, Petr Kletetschka, Günther Fischer, Tomáš
n3:wos
000322241300016
n3:zamer
n15:AV0Z30120515 n15:AV0Z30130516 n15:MSM0021620855
s:issn
0043-1397
s:numberOfPages
8
n17:doi
10.1002/wrcr.20261
n10:organizacniJednotka
11310