Provides hydrologic instruments, equipment, and supplies for USGS, other Federal agencies, and cooperators. Also tests, evaluates, repairs, calibrates, and develops hydrologic equipment and instruments.
Explains the long history of this series of satellites, from which we have obtained a wealth of information. Includes a summary of the scientific capabilities of the sensors each satellite carried, and describes what we can do with this information.
Instructions on how to build a protective outdoor seismic vault used as stations for broadband seismic sensors that respond to seismic energy, temperature, and atmospheric pressure for the United States National Seismic Network in PDF format.