Lake Paajarvi (southern Finland, Europe 60º04 N, 25º08 E) Lake Pääjärvi Automated monitoring...

Lake Paajarvi (southern Finland, Europe 60º04’ N, 25º08’ E)Lake PääjärviAutomated monitoring station

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

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

Va a sa

Ko kko la

Kuo p io

J yvä skylä

Ka ja a ni

O ulu

Ro va nie m i

Ta m p e rePo ri

Turku

He lsinki

La p p e e nra nta

J o e nsuu

100 km

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

Automatic monitoring station at Vesijärvi 2004->