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Search indexed USGS publications on groundwater, aquifers, geologic maps, mineral resources and earthquakes. Explore source records by subject and place.

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At least 1,639 records · Page 91Linked to original sources
USGS1985

Water Resources Data for California, Water Year 1984; Volume 2. Pacific Slope Basins from Arroyo Grande to Oregon State Line except Central Valley

Water resources data for the 1984 water year for California consists of records of stage, discharge, and water quality of streams; stage and contents in lakes and reservoirs; and water levels and water quality in wells. Volume 2 contains discharge records for 132 gaging stations; stage and contents for 18 lakes and reservoirs; water quality for 11 stations; water levels for 9 observation wells. Also included are 2 low-flow partial-record stations and 19 water-quality partial-record stations. These data represent that part of the National Water Data System operated by the U.S. Geological Survey and cooperating State and Federal agencies in California.

California↗
USGS2001

Water Resources Data--California, Water Year 2000, Volume 2. Pacific Slope Basins from Arroyo Grande to Oregon State Line except Central Valley

Water-resources data for the 2000 water year for California consist of records of stage, discharge, and water quality of streams, stage and contents in lakes and reservoirs, and water levels and water quality in wells. Volume 2 contains discharge records for 121 gaging stations, gage-height records for 10 stations, stage and contents for 6 lakes and reservoirs, and water quality for 34 stations. Also included are data for 1 low-flow partial-record station, and 32 miscellaneous-measurement stations. These data represent that part of the National Water Data System operated by the U.S. Geological Survey and cooperating State and Federal agencies in California.

Water Data Report↗
USGS1978

Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Afognak, Karluk, Kodiak, and Trinity Islands quadrangles, Alaska

These summaries of references are designed to aid in library research on metallic and nonmetallic (other than mineral fuels and construction materials) mineral occurrences in the Afognak, Karluk, Kodiak, and Trinity Islands quadrangle, Alaska. References to most reports of the Geological Survey, the U.S. Bureau of Mines, and the State of Alaska Division of Geological and Geophysical Surveys and its predecessor State and Territorial agencies released before January 1, 1979, are summarized. Certain, mainly statistical, reports such as the annual Minerals Yearbook of the U.S. Bureau of Mines and biennial and annual reports of the Alaska Division of Geological and Geophysical Surveys and its predecessor State and Territorial agencies are not included. Also not included are data on many claims about which little more than their locations is known (for example, MacKevett and Holloway, 1977, p. 18). These omissions should not be interpreted as a judgement on my part that the claims are not valid mineral occurrences, but only that there are insufficient data to describe any mineral deposit that might be present. This report is divided into three parts: a section made up of summaries of references arranged alphabetically first by occurrence name; a section that lists synonyms for names in the first section, claim names, and the names of operators and owners of mines and prospects; and a section that lists, by author, all references in the first section and in these introductory paragraphs.

Alaska↗
USGS1991

Water Resources Data, California, Water Year 1990. Volume 2. Pacific Slope Basins from Arroyo Grande to Oregon State Line except Central Valley

Water resources data for the 1990 water year for. California consist of records of stage, discharge, and water quality of streams; stage and contents in lakes and reservoirs; and water levels and water quality in wells. Volume 2 contains discharge records for 125 streamflow-gaging stations and 1 low-flow partial-record station; stage and contents for 7 lakes and reservoirs; precipitation records for 4 stations; and water-quality records for 29 streamflow-gaging stations and 10 water-quality partial-record stations. These data represent that part of the National Water Data System operated by the U.S. Geological Survey and cooperating State and Federal agencies in California.

California↗
USGS1997

Water Resources Data, California, Water Year 1996. Volume 2. Pacific Slope Basins from Arroyo Grande to Oregon State Line except Central Valley

Water-resources data for the 1996 water year for California consist of records of stage, discharge, and water quality of streams, stage and contents in lakes and reservoirs, and water levels and water quality in wells. Volume 2 contains discharge records for 107 gaging stations, gage height records for 7 stations, stage and contents for 6 lakes and reservoirs, precipitation data for 1 station, and water quality for 21 stations. Also included are data for 1 low-flow partial-record station and 7 miscellaneous measurement stations. These data represent that part of the National Water Data System operated by the U.S. Geological Survey and cooperating State and Federal agencies in California.

California↗
USGS1986

Water Resources Data for California, water year 1984. Volume 4. Northern Central Valley Basins and the Great Basin from Honey Lake Basin to Oregon State Line

Water resources data for the 1984 water year for California consists of records of stage, discharge, and water quality of streams; stage and contents in lakes and reservoirs; and water levels and water quality in wells. Volume 4 contains discharge records for 152 gaging stations; stage and contents for 25 lakes and reservoirs; water precipitation data for 2 stations; water quality for 9 stations; water levels for 12 and water quality for 46 observation wells. Also included is one low-flow partialrecord station and 19 water-quality partial-record stations. These data represent that part of the National Water Data System operated by the U.S. Geological Survey and cooperating State and federal agencies in California.

California↗
USGS2024

Tracking surface changes caused by volcanic activity

Introduction Dynamic volcanic landscapes produce various changes at the surface of volcanic edifices. For example, rising magma can induce thermal emissions, formation of ground cracks, and variations in glacier and edifice morphology; volcanic deposits from eruptions can transform the land surface with tephra fall, pyroclastic flows, lava flows and domes, and lahars; and geomorphic changes from landslides and lahars can occur in the absence of unrest or eruption. The best way to detect these changes is with imagery obtained via satellite, aircraft (including unoccupied aircraft systems, or UAS), and ground-based imaging. Rapid advances in imaging technologies have been leveraged by the U.S. Geological Survey (USGS) Volcano Hazards Program to improve the ability to monitor volcanoes. To this end, the guidance outlined here provides a framework for tracking volcanic unrest and the emplacement and evolution of volcanic deposits, further elucidating the processes associated with volcanic eruptions. The techniques currently used include (1) various telemetered and non-telemetered cameras, (2) high-resolution ground-based optical (visible to short-wave infrared wavelengths) and thermal infrared photography, (3) satellite and airborne thermal, optical, and synthetic aperture radar (SAR) imagery, and (4) light detection and ranging (lidar) surveys from airborne and ground-based platforms. Given that similar or overlapping techniques are applied to meet the capabilities listed in this chapter, we first provide an overview of remote sensing techniques. The use of UAS in monitoring surface change is briefly mentioned in this chapter and described in more detail in the dedicated UAS chapter ( of Flinders, A.F., Lowenstern, J.B., Coombs, M.L., and Poland, M.P., eds., Recommended capabilities and instrumentation for volcano monitoring in the United States: U.S. Geological Survey Scientific Investigations Report 2024–5062–L, 5 p., https://doi.org/10.3133/sir20245062l.">chapter L , this volume; Diefenbach, 2024).

Scientific Investigations Report↗
USGS1992

Water Resources Data, California, Water Year 1991. Volume 2. Pacific Slope Basins from Arroyo Grande to Oregon State Line except Central Valley

Water resources data for the 1991 water year for California consist of records of stage, discharge, and water quality of streams; stage and contents in lakes and reservoirs; and water levels and water quality in wells. Volume 2 contains discharge records for 130 streamflow-gaging stations, 1 low-flow partial-record station, and 6 miscellaneous measurement sites; stage and contents for 7 lakes and reservoirs; precipitation records for 3 stations; and water-quality records for 41 streamflow-gaging stations and 3 water-quality partial-record stations. These data represent that part of the National Water Data System operated by the U.S. Geological Survey and cooperating State and Federal agencies in California.

California↗
USGS2003

Water Resources Data--California, Water Year 2002, Volume 2, Pacific Slope Basins from Arroyo Grande to Oregon State Line except Central Valley

Water-resources data for the 2002 water year for California consist of records of stage, discharge, and water quality of streams, stage and contents in lakes and reservoirs, and water levels and water quality in wells. Volume 2 contains discharge records for 133 gaging stations, stage and contents for 8 lakes and reservoirs, gage-height records for 6 stations, water quality for 43 streamflow-gaging stations and 5 partial-record stations. Also included are data for 1 low-flow partial-record station, and 5 miscellaneous-measurement stations. These data represent that part of the National Water Data System operated by the U.S. Geological Survey and cooperating State and Federal agencies in California.

Water Data Report↗
USGS1998

Water Resources Data, California, Water Year 1997. Volume 2. Pacific Slope Basins from Arroyo Grande to Oregon State Line except Central Valley

Water-resources data for the 1997 water year for California consist of records of stage, discharge, and water quality of streams, stage and contents in lakes and reservoirs, and water levels and water quality in wells. Volume 2 contains discharge records for 101 gaging stations, gage height records for 7 stations, stage and contents for 6 lakes and reservoirs, and water quality for 12 stations and 10 water-quality partial-record miscellaneous sites. Also included are data for l low-flow partial-record station and 3 miscellaneous measurement stations. These data represent that prut of the National Water Data System operated by the U.S. Geological Survey and cooperating State and Federal agencies in California.

California↗
USGS2002

Water resources data West Virginia water wear 2001

Water-resources data for the 2001 water year for West Virginia consist of records of discharge and water quality of streams and water levels of observation wells. This report contains discharge records for 65 streamflow-gaging stations; discharge records provided by adjacent states for 7 streamflow-gaging stations; annual maximum discharge at 18 crest-stage partial-record stations; water-quality records for 4 stations; and water-level records for 10 observation wells. Locations of these sites are shown on figures 4 and 5. Additional water data were collected at various sites, not involved in the systematic data collection program, and are published as miscellaneous sites. These data represent that part of the National Water Data System collected by the U.S. Geological Survey and cooperating State and Federal agencies in West Virginia.

Water Data Report↗
USGS1999

Water resources data, West Virginia, water year 1998

Water-resources data for the 1998 water year for West Virginia consist of records of discharge and water quality of streams and water levels of observation wells. This report contains discharge records for 65 streamflow-gaging stations; discharge records provided by adjacent states for 10 streamflow-gaging stations; annual maximum discharge at 37 crest-stage partial-record stations; water-quality records for 21 stations; and water-level records for 14 observation wells. Locations of these sites are shown on figures 4 and 5. Additional water data were collected at various sites, not involved in the systematic data collection program, and are published as miscellaneous sites. These data represent that part of the National Water Data System collected by the U.S. Geological Survey and cooperating State and Federal agencies in West Virginia.

West Virginia↗
USGS2002

Water Resources Data--California, Water Year 2001, Volume 2. Pacific Slope Basins from Arroyo Grande to Oregon State Line except Central Valley

Water-resources data for the 2001 water year for California consist of records of stage, discharge, and water quality of streams, stage and contents in lakes and reservoirs, and water levels and water quality in wells. Volume 2 contains discharge records for 128 gaging stations, stage and contents for 6 lakes and reservoirs, gage-height records for 8 stations, water quality for 43 streamflow-gaging stations and 2 partial-record stations, and precipitation data for 1 station. Also included are data for 1 low-flow partial-record station, and 8 miscellaneous-measurement stations. These data represent that part of the National Water Data System operated by the U.S. Geological Survey and cooperating State and Federal agencies in California.

Water Data Report↗
USGS2004

Water Resources Data -- California, Water Year 2003, Volume 2, Pacific Slope Basins from Arroyo Grande to Oregon State Line except Central Valley

Water-resources data for the 2003 water year for California consist of records of stage, discharge, and water quality of streams, stage and contents in lakes and reservoirs, and water levels and water quality in wells. Volume 2 contains discharge records for 134 gaging stations, stage and content records for 8 lakes and reservoirs, gage-height records for 6 stations, and water-quality records for 43 streamflow-gaging stations and 5 water-quality partial-record stations. Also included are data for 1 low-flow partial-record station, and 1 miscellaneous-measurement station. These data represent that part of the National Water Data System operated by the U.S. Geological Survey and cooperating State and Federal agencies in California.

Water Data Report↗
USGS2005

Water resources data, California, water year 2004, volume 2. Pacific Slope basins from Arroyo Grande to Oregon state line except Central Valley

Water-resources data for the 2004 water year for California consist of records of stage, discharge, and water quality of streams, stage and contents in lakes and reservoirs, and water levels and water quality in wells. Volume 2 contains discharge records for 134 gaging stations, stage and content records for 8 lakes and reservoirs, gage-height records for 8 stations, and water-quality records for 36 streamflow-gaging stations and 4 water-quality partial-record stations. Also included are data for 1 low-flow partial-record station, and 1 miscellaneous-measurement station. These data represent that part of the National Water Data System operated by the U.S. Geological Survey and cooperating State and Federal agencies in California.

Water Data Report↗
USGS1985

Water Resources Data for California, Water Year 1983, Volume 4. Northern California Valley Basins and the Great Basin from Honey Lake Basin to Oregon State Line

Water-resources data for the 1983 water year for California consists of records of stage, discharge, and water quality of streams; stage and contents in lakes and reservoirs; and water levels and water quality in wells. Volume 4 contains discharge records for 153 gaging stations; stage and contents for 25 lakes and reservoirs; precipitation data for 2 stations; water quality for 7 stations; and water levels for 147 observation wells. Also included is one low-flow partial-record station. Additional water data are collected at various sites, not part of the systematic data collection program, and are published as special investigations. These data represent that part of the National Water Data System operated by the U.S. Geological Survey and cooperating State and Federal agencies in California.

California↗
USGS2011

Integrating science and resource management in Tampa Bay, Florida

Tampa Bay is recognized internationally for its remarkable progress towards recovery since it was pronounced "dead" in the late 1970s. Due to significant efforts by local governments, industries and private citizens throughout the watershed, water clarity in Tampa Bay is now equal to what it was in 1950, when population in the watershed was less than one-quarter of what it is today. Seagrass extent has increased by more than 8,000 acres since the mid-1980s, and fish and wildlife populations are increasing. Central to this successful turn-around has been the Tampa Bay resource management community's long-term commitment to development and implementation of strong science-based management strategies. Research institutions and agencies, including Eckerd College, the Florida Wildlife Commission Fish and Wildlife Research Institute, Mote Marine Laboratory, National Oceanic and Atmospheric Administration, the Southwest Florida Water Management District, University of South Florida, U.S. Environmental Protection Agency, U.S. Geological Survey, local and State governments, and private companies contribute significantly to the scientific basis of our understanding of Tampa Bay's structure and ecological function. Resource management agencies, including the Tampa Bay Regional Planning Council's Agency on Bay Management, the Southwest Florida Water Management District's Surface Water Improvement and Management Program, and the Tampa Bay Estuary Program, depend upon this scientific basis to develop and implement regional adaptive management programs. The importance of integrating science with management has become fully recognized by scientists and managers throughout the region, State and Nation. Scientific studies conducted in Tampa Bay over the past 10–15 years are increasingly diverse and complex, and resource management programs reflect our increased knowledge of geology, hydrology and hydrodynamics, ecology and restoration techniques. However, a synthesis of this research and its integration into resource management has not been prepared for Tampa Bay since the mid-1980s. The need for an up-to-date synthesis of Tampa Bay science and management has resulted in the production of this document. The U.S. Geological Survey recently completed a 5-year Tampa Bay Integrated Science Study, and the Tampa Bay Estuary Program updated the Comprehensive Conservation and Management Plan for Tampa Bay in 2006. These efforts build upon results of the many research and management studies and programs summarized here.

Florida↗
USGS1972

Map showing general availability of ground water in the Salina quadrangle, Utah

The general availability of ground water was determined from well records collected by the U.S. Geological Survey and cooperating State, local, and Federal agencies. Data are for aquifers that in most places are less than 1,000 feet below the land surface. In areas of few or no wells, potential well yields are inferred from geologic data. Special investigations are needed to determine specific factors such as depths and sustained yields of aquifers, water levels, and suitability of water for use in any given area. More detailed information about principal aquifers for specific parts of the map area are obtainable from the district office of the Water Resources Division, U.S. Geological Survey, Salt Lake City, Utah.

Utah↗