While previous sections of this report have focused on the kinds of systematic biases that may be the largest worry when it comes to public opinion polls, the variance (or precision) of estimates is ...

WRITTEN by a practical surveyor and teacher, this manual is just what is required by the beginner, be he student or practitioner, in surveying. It contains just what is necessary and little that is ...

Survey researchers increasingly recognize that a single survey of the general public can rarely represent the views of small groups of Americans. Such surveys frequently have too few interviews with ...

Collectively, recreational fisheries can take a significant fraction of the yearly catch—in some cases more than commercial fisheries. It is important that systems used to monitor fishing catch are ...

Cheap cameras on drones can be used to measure environmental change which affects billions of people around the world, new research shows. Cheap cameras on drones can be used to measure environmental ...

An international collaborative research group consisting of members from 7 institutions has developed a method of determining which amphibious species (types of frog, newt and salamander) inhabit an ...

Montreux, Switzerland – TOPODRONE, a Swiss-based designer and manufacturer of high-precision surveying equipment, has synchronized airborne photogrammetry, and LiDAR and bathymetric surveying methods ...