1. USGS Thesaurus
Marine Realms Information Bank (MRIB) keyword categories > research method
field observation
scientific investigation of physical or biological features and processes in a natural setting.
This category is also used for field methods
Subtopics
Global Positioning System (GPS) observations
acoustic methods
altimetry
biological observations
chemical tracer studies
controlled burn experiments
diving
electrical resistivity measurements
electromagnetic conductivity measurements
excavation
fossil collecting and description
gamma ray logging
geodetic measurements
geotechnical measurements
gravimetry
heat flow observations
hydraulic conductivity observations
hydrologic observations
magnetic field observations
mapping
meteorological observations
oceanographic observations
photography
remote sensing
sampling
seismic methods
seismographic measurements
stratigraphic characterization and correlation
underwater vehicle observations
video observation
See also
(none)
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