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Field methods

Research procedures and instrumental means to measure, collect data and samples, and observe in the natural areas where the materials, phenomena, structures, or species being studied occur.

Subtopics:
Field experiments (9 items)
Field inventory and monitoring (382 items)
Field sampling (141 items)
Geolocation measurement (39 items)
Real-time monitoring and reporting (174 items)

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Results 51 - 60 of 617 listed alphabetically [list by similarity]

Buck Island Reef National Monument Sea Turtle Research Program: Sea turtle nesting research & monitoring protocols manual [More info]: Manual for research program on the nesting habits of sea turtles of the Virgin Islands, with descriptions of species, nesting behavior, observation methods, record keeping, tagging, and tissue sample collection. (PDF file, 121 pp.)
Burrowing owls winter in south Texas [More info]: Experimental use of artificial burrows in south Texas to help in conservation of the migratory burrowing owls (Athene cunicularia) that breed in dry grasslands using animal burrows.
Calculating weighted estimates of peak streamflow statistics [More info]: A method of improving our estimates of statistics used to describe flood frequency, taking into account information obtained from the stream whose flood frequency is being investigated.
Carolina slate belt gold deposits in Virginia, North Carolina, South Carolina, and Georgia [More info]: Report of research on the Carolina slate belt and gold deposits in Virginia, North Carolina, South Carolina, and Georgia with geologic mapping, mineralogic, geochemical, and fluid evolution studies, radiogenic dating, and stable isotope studies.
Cascades Volcano Observatory [More info]: Portal to information provided by the Cascades Volcano Observatory in Vancouver, WA with links to reports and activity in the Cascade Range and other volcanoes and multiple links to general information on volcanology, reports, research, and maps.
Cascades Volcano Observatory - Mount St. Helens real-time hydrologic monitoring [More info]: Real-time and historic data from gaging stations for water and mudflow detection in the Mount St. Helens, WA vicinity with data tables and plots, interactive location map and station descriptions.
Catalogue of Polar Bear (Ursus maritimus) Maternal Den Locations in the Beaufort Sea and Neighboring Regions, Alaska, 1910-2010 [More info]: Approximate locations of 392 polar bear maternal dens found between 1910 and 2010, along with the method and year of discovery.
Central California /San Francisco Bay Earthquake Hazards Project [More info]: Information on earthquakes in central California and the San Francisco region with links to four types of field studies, deep seismic investigations, geotechnical investigations, shallow seismic imaging, and airborne geophysical surveys.
Characterization of Fish Creek, Teton County, Wyoming, 2004-08 [More info]: Preliminary results of hydrologic and biological sampling confirm anecdotal reports that this stream shows unusually high algal growth due to elevated nutrients, probably from groundwater.
Characterizing contaminant concentrations with depth by using the USGS well profiler in Oklahoma, 2003-9 [More info]: Use of specialized sampling equipment to study public water supply wells, with examples showing Arsenic in two aquifers.

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