Detection of oil pollution on sea ice with airborne and spaceborne spectrometer. - Jaan Praks; Miia Eskelinen; Jouni Pulliainen; Timo Pyhälahti; Martti Hallikainen (IGARSS, 2004)

Water quality classification of lakes using 250-m MODIS data. - Sampsa S. Koponen; Kari Y. Kallio; Jouni Pulliainen; Jenni Vepsäläinen; Timo Pyhälahti; Martti Hallikainen (IEEE Geosci. Remote. Sens. Lett., 2004)

A filtering approach for estimating lake water quality from remote sensing data. - Arto Voutilainen; Timo Pyhälahti; Kari Y. Kallio; Jouni Pulliainen; Heikki Haario; Jari P. Kaipio (Int. J. Appl. Earth Obs. Geoinformation, 2007)

Advances in combining optical citizen observations on water quality with satellite observations as part of an environmental monitoring system. - Timo Pyhälahti; Timo Toivanen; Kari Y. Kallio; Marko Jarvinen; Matthieu Molinier; Sampsa S. Koponen; Ville Kotovirta; Chengyuan Peng; Saku Anttila; Marnix Laanen; Matti Lindholm (IGARSS, 2015)