Vertical Transport of Oxygen into the Hypolimnion of Lakes

Autor:	R. J. Cornett, F. H. Rigler
Rok vydání:	1987
Předmět:	Heat budget Ecology chemistry.chemical_element Aquatic Science Seasonality Atmospheric sciences medicine.disease Oxygen Eddy diffusion chemistry Epilimnion medicine Environmental science Hypolimnion Surface water Ecology Evolution Behavior and Systematics
Zdroj:	Canadian Journal of Fisheries and Aquatic Sciences. 44:852-858
ISSN:	1205-7533 0706-652X
DOI:	10.1139/f87-103
Popis:	Rates of vertical transport of oxygen into the hypolimnion were calculated by multiplying the vertical eddy diffusivity coefficients, determined from the heat budget, by the measured gradients in oxygen concentration. In 12 lakes, transport ranged from 0 to 70 mg O2∙m−2∙d−1and was insensitive to the depth defining the upper boundary of the hypolimnion. Oxygen was transported into the hypolimnion of lakes with a thinner hypolimnion and out of the hypolimnion of lakes with a thick hypolimnion. Transport averaged 4% of the measured total rate of hypolimnetic oxygen depletion and −1) and size (areas from 0.4 to 70 km2), vertical oxygen transport accounts for less than 15% of the hypolimnetic oxygen deficit. Oxygen depletion models will gain relatively little precision by including a vertical transport flux parameter.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8270c234a38e9f9aa454c31486ea7e32 https://doi.org/10.1139/f87-103 Zobrazit plný text záznamu