Comparision of 5 hypsometric curves
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Comparision of 5 hypsometric curves For Lower Mystic Lake (blue points are average of 3) PowerPoint PPT Presentation


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Comparision of 5 hypsometric curves For Lower Mystic Lake (blue points are average of 3). Kalff, Ch. 11 Highlights. Heat and Stratification Key ideas The Heat budget of a lake Definitions The components of the heat budget:

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Comparision of 5 hypsometric curves For Lower Mystic Lake (blue points are average of 3)

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Comparision of 5 hypsometric curves

For Lower Mystic Lake

(blue points are average of 3)


Kalff, Ch. 11

Highlights


Heat and Stratification

Key ideas

The Heat budget of a lake

Definitions

The components of the heat budget:

(1-A) Rs +RLd –Rlup-LE-H +Qin-Qout-Qsed+M = rate of change in storage

Individual fluxes:

Shortwave radiation (from last class, mostly)

Longwave radiation: Boltzmann eqn, Wein displacement law, emissivity

Longwave back radiation: sky, clouds, canopy

Evaporative heat flux

Sensible Heat

Ice formation and melting

Stratification

Definitions

Local stability

Water column stability

Relationships with lake morphometry and size

Vertical Mixing and entrainment

Quantitative models

Empirical: mass tracer or heat as a tracer


In Eagleson,

1970


Ragotzkie, in Lerman

et al. 1979


In: Eagleson, 1970


In: Ragotzkie,

1978


From Kalff, 2002


From Kalff, 2002


From Charu Varadharajan thesis, 2009


Upper Mystic Lake Data, October 1, 1984

DepthTemp deg CDO mg/LLight Intensity (uE/(m2s)

018.39.1660

0.5540

118.3300

218.2105

318.29

618.28.3

7187.6

816.50.7

9170.5

10140.075

1111.7

1211.7

1310.9

149.8

159.8

Secchi Depth = 2 m


In Ragotzkie, 1978


In Lerman, 1978


In Fischer et al., 1979


In Kalff, 2002


In Fischer et al, 1979


From Kalff, 2002


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