Fayetteville Green Lake, New York. I. Physical and Chemical Limnology1

A new bathymetric map of Fayetteville Green Lake, New York, has been made. From morphometric parameters and an approximation of the density differential between the mixolimnion and monimolimnion (Δ ρ = 0.6 × 10 −3 g cm −3 ), a meromictic stability of 1,700 g‐cm cm −2 was estimated. From semimonthly measurements of temperature over a 2‐yr period, the work of the wind in distributing summer mixolimnetic heat income (16,800 g cal cm −2 ) was 760 g‐cm cm −2 . Surface runoff from the 4.33 km 2 drainage area of Green and Round Lakes supplies less than 50% of the observed outflow of Green Lake (3.3 × 10 6 m 3 /yr) in 1967. A theoretical replenishment time of the total Green Lake water mass was estimated as 2 to 3 years, or 1.0 to 1.7 years if the monimolimnion was considered static. Concentrations of major elements are given for the Green Lake water column and for groundwater of the area.