The relationship between lake surface area and maximum depth

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Authors

B. B. Cael, David Seekell

Abstract

Maximum depth varies among lakes from $<$1 to 1741 meters, but attempts to explain this variation have achieved little predictive power. In this paper, we describe the probability distribution of maximum depths based on recent developments in the theory of fractal Brownian motions. The theoretical distribution is right-tailed and adequately captures variations in maximum depth in a dataset of 8,164 lakes (maximum depths 0.1 to 135 meters) from the northeastern United States. Maximum depth increases with surface area, but with substantial random variation - the 95\% prediction interval spans more than an order of magnitude for lakes with any specific surface area. Our results explain the observed variability in lake maximum depths, capture the link between topographic characteristics and lake bathymetry, and provide a means to upscale maximum-depth-dependent processes, which we illustrate by upscaling the diffusive flux of methane from northern lakes to the atmosphere.

DOI

https://doi.org/10.31223/X5N925

Subjects

Environmental Sciences

Keywords

Dates

Published: 2022-03-09 07:05

Last Updated: 2022-03-09 15:05

License

CC BY Attribution 4.0 International

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Data Availability (Reason not available):
Data are available from sources cited in the text.