Latitudinal-altitudinal inter-relationships for the surface temperatures of the Northern hemisphere freshwater lakes

Ryanzhin, S. V.

doi:10.1016/0304-3800(94)90121-x

Cited by 6 publications

(8 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In contrast, Ryanzhin’s (1994) approximation of the relationship between mean surface water temperatures and latitude was estimated using a cubic‐spline model. However, in his analysis the study lakes ( n =123) were located across much of the Northern hemisphere, thus traditional regression models did not adequately describe the scatter below about 10°N or above about 70°N (Ryanzhin, 1994). Nonetheless, considering the Ryanzhin (1994) scatter plot between 25°N and 65°N (see his Fig.…”

Section: Discussionmentioning

confidence: 99%

“…However, in his analysis the study lakes ( n =123) were located across much of the Northern hemisphere, thus traditional regression models did not adequately describe the scatter below about 10°N or above about 70°N (Ryanzhin, 1994). Nonetheless, considering the Ryanzhin (1994) scatter plot between 25°N and 65°N (see his Fig. 2) we estimated the slope to be about −0.44.…”

Section: Discussionmentioning

confidence: 99%

“…Thus, our regression equations relating thermal characteristics as a function of latitude are probably applicable at least to lakes in sub‐arctic and northern temperate zones in the U.S.A. and Canada. However, morphometry and water clarity modify thermal responses such as MD and epilimnetic temperatures to climatic forces (Geller, 1992; Mazumder & Taylor, 1994; Ryanzhin, 1994; Fee et al ., 1996; Perez‐Fuentetaja et al ., 1999; Benson et al ., 2000).…”

Section: Discussionmentioning

confidence: 99%

“…thickness, duration of cover) from various climatic, geographic and morphometric parameters. Ryanzhin (1994) quantified (surface) water temperatures (minimum, mean and maximum) from a large number and variety of lakes ( n =123) in relation to a northern hemispherical latitude gradient. However, effects of morphometry and transparency were not considered (or quantified).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Regional and hierarchical perspectives of thermal regimes in subarctic, Alaskan lakes

Edmundson

Mazumder

2002

Freshwater Biology

View full text Add to dashboard Cite

1. We examined 60 clear, stained and glacial lakes in Alaska to quantify the relative importance of climate setting, morphometry, transparency, and lake typology influences on various thermal characteristics including duration of growing season, water temperature, mixing depth (MD) and heat content. We used analysis of variance (ANOVA) to test for differences in thermal characteristics in association with lake type and employed simple and multiple regression techniques to determine functional relationships between variables. 2. Latitude accounted for 60% of the total variance in length of growing season. Although the date of maximum heat content was consistent among lake types, stained lakes had longer growing seasons compared with clear and glacially turbid lakes. 3. Maximum water temperatures were approximately 3 °C higher in stained lakes and 3 °C lower in glacial lakes compared with clear lakes. Mean water column temperature was significantly lower in glacial lakes (5.9 °C) compared with clear lakes (7.4 °C), but there was no statistical difference between clear and stained lakes (7.2 °C) or between stained and glacial lakes. Maximum surface temperatures were positively related (r2=0.51) to colour (humic stain), but negatively related (r2=0.40) to inorganic turbidity (glacial silt). 4. Only about half of the lakes in our data set underwent summer stratification. None of the glacial lakes developed a distinct thermocline, but stained lakes had shallower MDs (mean 8 m) than clear lakes (mean 12 m). Thus, the MD to total depth ratio for glacial lakes was unity compared with mean values of 0.66 for clear lakes and 0.34 for stained lakes. Fetch explained a significant fraction (51%) of the total variance in MD. Considering all lakes, MD was inversely related to transparency (Secchi depth). In contrast, considering only stratified clear and stained lakes, MD was positively related to Secchi depth (SD), the fraction of the total variance explained was 23%. The sign of the slope was dependent on the mixture of lake types. 5. Despite significant (ANOVA) differences in water temperatures, growing season, and MDs among the three lake types, there were no statistical differences in the summer heat budget associated with lake type. In addition, heat budgets were poorly correlated with lake area, depth and volume. In contrast, mean water column temperature was strongly and inversely related (r2=0.77) to mean depth. 6. Potential explanations for the similarity in summer heat budget among lake types and weak correlation with morphometry were attributed to different patterns in vertical heat distribution associated with lake typology (colour and turbidity) differences. 7. Multiple linear regression including climatic (latitude and altitude), morphometric, and lake typology (colour and turbidity) factors demonstrated a hierarchical (climate–morphometry–typology) regulation of growing season characteristics, water temperatures, stratification and heat retention. A regional and hierarchical framework for lake thermal characteris...

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Regional and hierarchical perspectives of thermal regimes in subarctic, Alaskan lakes

Edmundson

Mazumder

2002

Freshwater Biology

View full text Add to dashboard Cite

show abstract

“…Beadle 1981;Melack and Fisher 1983;Lewis 1987;Vyverman 1994) owing to increased change in density at higher water temperatures (Bauer 1983). The warm monomictic category for Lake Tinaroo is in disagreement with the arrangement of Northern Hemisphere thermal lake classes of Ryanzhin (1994), whereby Lake Tinaroo would be classified as warm polymictic on the basis of altitude and latitude. However, shallower sites did demonstrate a warm polymictic pattern of stratification owing to seasonal rainfall influences (see below).…”

Section: Stratification and Circulation Patternsmentioning

confidence: 99%

Temperature, dissolved oxygen and stratification in a tropical reservoir, Lake Tinaroo, Northern Queensland, Australia

MacKinnon¹,

Herbert²

1996

Mar. Freshwater Res.

View full text Add to dashboard Cite

Thermal and oxygen depth profiles in Lake Tinaroo were measured monthly at six sites over a two-year period from May 1988 to July 1990. Lake Tinaroo exhibits thermal layering throughout most of the year. Partitioning of the water column into an oxygenated epilimnion and a deoxygenated hypolimnion was well established by October each year. Breakdown of stratification occurred in late May to June and persisted until September. From October to May multiple thermoclines (diurnal, parent) developed, particularly during still weather. Localized disruption of stratification by oxygenated, cool, denser inflows during flood events in the catchment occurred during the rainy season. Thermocline tilting was noted after prolonged periods of south-easterly winds, with a deeper thermocline/oxycline at the north-westem end of the lake. South-westerly winds had a corresponding effect on the north-east of the lake. The distribution of oxygenated water and deoxygenated water, affected by seasonal stratification, thermocline tilting, upwelling and flood-mediated disruption of stratification, is of importance to recreational fisheries and the location of water intake points for urban and domestic use. Lake Tinaroo has thermal characteristics of outer tropical rather than equatorial tropical lakes, owing in part to altitude effects.

show abstract

Temporal variations in lake water temperature: Paleoenvironmental implications of lake carbonate δ18O and temperature records

Hren

Sheldon

2012

Earth and Planetary Science Letters

View full text Add to dashboard Cite

Latitudinal-altitudinal inter-relationships for the surface temperatures of the Northern hemisphere freshwater lakes

Cited by 6 publications

References 4 publications

Regional and hierarchical perspectives of thermal regimes in subarctic, Alaskan lakes

Regional and hierarchical perspectives of thermal regimes in subarctic, Alaskan lakes

Temperature, dissolved oxygen and stratification in a tropical reservoir, Lake Tinaroo, Northern Queensland, Australia

Temporal variations in lake water temperature: Paleoenvironmental implications of lake carbonate δ18O and temperature records

Contact Info

Product

Resources

About