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southern boreal vegetation zone (airT 3.6 º C, precip 660 mm/a ) ▪ dimictic, humic, oligo-mesotrophy ▪ A 13.4 km 2 , z max 85 m ▪ ice cover ~ 150 d Nov/Dec-Apr/May Buoy Station ▪ met-variables 2001 ▪ temp, O 2 , pH, conductivity, chl-a, color (DOC) 2006/7 . Lake Pääjärvi
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southern boreal vegetation zone (airT 3.6ºC, precip 660 mm/a ) ▪ dimictic, humic, oligo-mesotrophy ▪ A 13.4 km2, zmax 85 m ▪ ice cover ~150 d Nov/Dec-Apr/May Buoy Station ▪ met-variables 2001 ▪ temp, O2, pH, conductivity, chl-a, color (DOC) 2006/7 Lake Pääjärvi Automated monitoring station Lake Paajarvi (southern Finland, Europe 60º04’ N, 25º08’ E) photos: llpo Hakala
Lake Vesijärvi, southern Finland lake A 111 km2, Catchment A 509 km2 Max depth 42 m, Mean depth 6 m Mean retention time 5.4 yrs Long history of pollution and partial recovery Map: www.vesku.net / Nevicom Oy
Automatic monitoring station at Vesijärvi 2004-> Water temperature (5,10,15,20,25,30m) Dissolved oxygen ―II ― Chlorophyll a (2, 7 12 m) Turbidity ― II ― Frequency: every 3-hrs, open water period 2 new stations to the lake in 2007 http://www.vesku.net/?Mittausasema