TY - T1 - Relasphone - Mobile and Participative In Situ Forest Biomass Measurements Supporting Satellite Image Mapping SN - / UR - http://hdl.handle.net/10138/169885 T3 - A1 - Molinier, Matthieu; Lopez-Sanchez, Carlos A.; Toivanen, Timo; Korpela, Ilkka; Corral-Rivas, Jose J.; Tergujeff, Renne; Häme, Tuomas A2 - PB - Y1 - 2016 LA - eng AB - Due to the high cost of traditional forest plot measurements, the availability of up-to-date in situ forest inventory data has been a bottleneck for remote sensing image analysis in support of the important global forest biomass mapping. Capitalizing on the proliferation of smartphones, citizen science is a promising approach to increase spatial and temporal coverages of in situ forest observations in a cost-effective way. Digital cameras can be used as a relascope device to measure basal area, ... VO - IS - SP - OP - KW - citizen science; participatory sensing; digital relascope; basal area; optical satellite images; aboveground forest biomass; growing stock volume; digital camera; smartphone app; VOLUNTEERED GEOGRAPHIC INFORMATION; TREE SPECIES CLASSIFICATION; EUROPEAN BOREAL FOREST; GROUND-BASED LIDAR; LAND-COVER; TROPICAL FORESTS; CITIZEN SCIENCE; COMBINING SATELLITE; AIRBORNE LIDAR; ACCURACY; 4112 Forestry N1 - PP - ER -