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Field inventory and monitoring
Repeated observation or sampling at a site, on a scheduled or event basis, for study and analysis. In general, this category excludes sampling programs in which materials are obtained in the field and brought back to a laboratory for study and analysis.
Subtopics:
Acoustic methods (30 items)
Borehole logging (5 items)
CTD measurement (1 items)
Ecosystem monitoring (71 items)
Electromagnetic surveying (10 items)
Handheld field spectroscopy (1 items)
Seismic methods (41 items)
Stream-gage measurement (110 items)
Telemetry (10 items)
Tiltmeter measurement (5 items)
Video monitoring (6 items)
Vocalization methods (1 items)
Animal and plant census (3 items)
Optical methods (3 items)
Gravimeter measurement (3 items)
Magnetometer measurement (1 items)
Tomography (1 items)

Ocean current measurement (1 items)
Ocean monitoring (29 items)
Volcano monitoring (11 items)
Weather monitoring (40 items)
Precipitation measurement (10 items)
Related topics:
Results 21 - 30 of 321 listed by similarity [list alphabetically]
Field guide to amphibian larvae and eggs of Minnesota, Wisconsin, and Iowa [New Window]
Field guide to identify amphibian species from the larvae and eggs. Available to download in Adobe PDF or UMESC format.
Field guide to the reptiles and amphibians of coastal Southern California [New Window]
Field guide to identify the reptiles and amphibians of coastal Southern California with glossary and map.
Field methods: capture and marking of pintails [New Window]
Method of tracking pintail ducks by capturing with rocket nets or swim-in traps and attaching telemetry devices that allow satellite tracking. Includes video of rocket nets.
PDF Field techniques for estimating water fluxes between surface water and ground water [New Window]
A guide to measuring the flow of water across the ground water surface water interface, with an overview of available methods and details of specific methods to use.
Fish passage through dams in large temperate floodplain rivers: an annotated bibliography [New Window]
Report describes an electronic database of annotated citations relevant to fish passage through dams. Document may be searched using the search form or downloaded as an Endnote, Microsoft Word, or WordPerfect
Geographic Analysis and Monitoring Program [New Window]
Geographic Analysis and Monitoring Program (GAM) conducts studies about land surface change, environmental and human health, fire and urban ecology, and natural hazards to help decision-makers in land-use planning and land management.
Hawaiian Volcano Observatory (HVO) earthquakes: HVO seismic network [New Window]
Description of the seismic monitoring of the active Hawaiian volcanoes with information on the network, instrumentation, and recording stations with links to related information.
Hudson River salt front data [New Window]
Tide stage, specific conductance, water temperature, and freshwater inflow at selected Hudson River (New York) gages updated every 4-hours to measure the effects of freshwater withdrawals and upstream movement of the salt front.
PDF Introduction to potential fields: Gravity [New Window]
Explanation of the Earth's gravitational field, emphasizing how USGS scientists measure gravity and portray these measurements on maps. Explains terminology of gravity anomaly maps and their relationship to the rock types and other geologic features.
PDF Introduction to potential fields: Magnetics [New Window]
Explanation of the Earth's magnetic field and how USGS measures it. Defines magnetic anomaly, induced and remanent magnetism in rocks, and describes magnetic anomaly maps.
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