| 2018 | IGARSS | Comparative Validation of Clear Sky Irradiance Models over Finland. | Viivi Kallio, Aku Riihel |
| 2012 | IGARSS | The change of seasonal snow surface roughness in Sodankyl finnish lapland during winters 2009 and 2010. | Kati Anttila, Terhikki Manninen, Tuure Karjalainen, Panu Lahtinen, Aku Riihel, Niilo Siljamo |
| 2012 | IGARSS | Boreal forest albedo and LAI in SNORTEX 2008-2010. | Terhikki Manninen, Lauri Korhonen, Aku Riihel, Panu Lahtinen, Pauline Stenberg, Jean-Louis Roujean, Olivier Hautecoeur |
| 2010 | IGARSS | Surface Albedo of the inner Arctic: Validation of the Climate-SAF satellite Albedo Product with in-situ observations. | Aku Riihel, Vesa Laine, Terhikki Manninen, Timo Vihma, Timo Palo |
| 2009 | IGARSS | SNORTEX (Snow Reflectance Transition Experiment): Remote Sensing Measurement of the Dynamic Properties of the Boreal Snow-forest in Support to Climate and Weather Forecast: Report of IOP-2008. | Jean-Louis Roujean, Terhikki Manninen, Anna Kontu, Jouni Peltoniemi, Olivier Hautecoeur, Aku Riihel, Panu Lahtinen, Niilo Siljamo, Hanne Suokanerva, Timo Sukuvaara, Sanna Kaasalainen, Osmo Aulamo, Veijo Aaltonen, Laura Thlix, Juha Karhu, Juha Suomalainen, Teemu Hakala, Harri Kaartinen |
| 2008 | IGARSS | Subarctic Boreal Forest Albedo Estimation Using Envisat ASAR for BRDF Determination. | Terhikki Manninen, Aku Riihel |
| 2007 | IGARSS | Estimation of the bidirectional reflectance distribution function of subarctic boreal forest using C-band SAR. | Aku Riihel, Terhikki Manninen |