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138 Titles Match Your Query
Showing 1 through 50 of 138 Next
1. Aquatic Cycling of Mercury in the Everglades Project Database [USGS_SOFIA_ACME_DB]
Between 1995 and 2008, the Aquatic Mercury Cycling in the Everglades (ACME) project examined in detail the biogeochemical parameters that influence methylmercury (MeHg) production in the Florida Everglades. ...


2. Aquifer Sensitivity to Contamination by Nitrate Leaching in Illinois [IGDNR_NO3AQSENS]   CHILD METADATA
This data set was designed for statewide evaluation of agrichemical leaching characteristics and associated aquifer sensitivity to contamination. It was created to classify soils ...


3. Assessment of Nitrogen Loading in the Upper Connecticut River Basin, New Hampshire, Vermont, and Massachusetts [USGS_CT_NLOAD]
The primary pollutant contributing to hypoxia in Long Island Sound (LIS) is nitrogen. The U.S. Geological Survey (USGS), in cooperation with the New England Interstate Water Pollution Control Commission ...


4. Atlantic Salmon Watersheds [gomc_359]
Welcome to PEARL's focus on the Atlantic Salmon Watersheds. These pages are being designed to provide direct access to key data sets and information summaries for the salmon watersheds. Completion ...


5. Availability of Organic Carbon for Denitrification of Nitrate in Subsoils and Groundwaters [USDA0511]
The purpose of "Availability of Organic Carbon for Denitrification of Nitrate in Subsoils and Groundwaters" is to determine the amounts of organic carbon and nitrate in subsoils and groundwaters from ...


6. Bacterioplankton dynamics in Antarctic lakes [ASAC_2154]
---- Public Summary from Project ---- Bacteria are an important part of the planktonic community of lakes and other aquatic environments. They use dissolved organic carbon in the water as a ...


7. Biological Atlas of the Arctic Seas 2000-Plankton of the Barents and Kara Seas [NOAA_bioatlas_arctic]
Presented are (a) physical and biological data collected during 158 scientific cruises carried out in the period 1913-1999 and (b) data on phytoplankton collected in 1994-1999 during cruises ...


8. Pilot 2006 Environmental Performance Index (EPI) [CIESIN_SEDAC_EPI_2006_2006.00]
The Pilot 2006 Environmental Performance Index (EPI) centers on two broad environmental protection objectives: (1) reducing environmental stresses on human health, and (2) promoting ecosystem vitality ...


9. Planktonic community structure and species interactions in melt ponds on the McMurdo Ice Shelf and at Cape Bird [K083_1991_1992_NZ_1]
Depth integrated water samples were taken from 20 ponds near Bratina Island on the McMurdo Ice Shelf and 6 ponds from Cape Bird to characterise the planktonic community structure of the ponds and ...


10. Pre-LBA Carbon in the Amazon River Experiment (CAMREX) Data [PRE-LBA_CAMREX_904_1]
The objective of CAMREX (Carbon in the Amazon River Experiment) project which was conducted from 1982 through 1991, was been to define by mass balances and direct measurements those processes which ...


11. Puget Sound Monitoring Program [WA_pswqat]
The Puget Sound Water Quality Action Team and Puget Sound Council require information about the condition of the Puget Sound environment to evaluate progress toward meeting the Plan's ...


12. Nitrogen Transport and Attenuation in the Connecticut River Basin, New Hampshire, Vermont, and Massachusetts [USGS_CT_NATTEN]
The objective of this project is to estimate the rate of nitrogen loss in selected reaches of the Connecticut River. In-stream loss of nitrogen may influence the total nitrogen loads being input to ...


13. SPARROW Model Results: Nutrient Loads and Sources for New England Watersheds [USGS_SPARROW_RES]
The U.S. Geological Survey (USGS), in cooperation with the New England Interstate Water Pollution Control Commission (NEIWPCC) and the U.S. Environmental Protection Agency (USEPA), developed the New ...


14. LBA-ECO CD-06 Carbon Cycling in Rivers in Amazonas and Acre, Brazil: 2005-2006 [CD06_CARBON_RESPIRATION_1125_1]
This data set provides measured and calculated variables describing the carbon pools in river waters, CO2 respired from the water and total amount of CO2 evaded, dissolved oxygen isotopes (delta 18O-O2), ...


15. LBA-ECO ND-30 Water Chemistry, Rainfall Exclusion, km 67, Tapajos National Forest [ND30_REE_WATER_CHEMISTRY_1131_1]
This data set reports the results of chemical analyses of rainfall, throughfall, litter leachate, and soil water samples collected before, during, and after a rainfall exclusion experiment conducted ...


16. Modeling Water Quality in the Tualatin River, Oregon, 1991-1997 [WRIR_01_4062]
The calibration of a model of flow, temperature, and water quality in the Tualatin River, Oregon, originally calibrated for the summers of 1991 through 1993, was extended to the summers of 1991 through ...


17. NERC Land Ocean Interaction Study (LOIS) River-Atmosphere-Coast Study (RACS) data off the east coast of England (from 1992) [BODC_NERC_LOIS_RACS]   CHILD METADATA
The River-Atmosphere-Coast Study (RACS) of the Natural Environment Research Council (NERC) of the United Kingdom studies land-sea interactions in the coastal zone and the major exchanges (physical, ...


18. National Pesticide Survey (NPS) [EPA0129]
The "National Pesticide Survey (NPS)" contains the results of a one-time survey conducted by EPA to determine the frequency and concentration of pesticides and nitrate in drinking water wells nationwide, ...


19. New Hampshire Environmental Monitoring Data (EMD) [NHDES_EMD]
The Environmental Monitoring Database (EMD) started out as a repository for river, lake, estuary, and ocean data collected by the New Hampshire Department of Environmental Services (NHDES) Watershed ...


20. Nitrate Leaching Class Ranges [IGDNR_NO3LRANGE]   PARENT METADATA
This is a statewide Arc/Info data set of nitrate leaching class ranges for soils in Illinois. It was generated to aid in determining aquifer sensitivity to nitrate leaching in Illinois. ...


21. Nitrate Leaching Classes of Illinois Soils [IGDNR_NO3LEACH]   PARENT METADATA
This data set was designed for statewide evaluation of agrichemical leaching characteristics and associated aquifer sensitivity to contamination. It was created to classify soils ...


22. Nitrogen Circulation in Rokkaku River [KUSUDA-ROKKAKU]
Water quality in Rokkaku River had been observed from 1983 to 1995.The water quality includes suspended solids, salinity, BOD, DO, nitrogen and phosphorous. Runoff water in sediments was also observed. ...


23. Nutrient Concentrations in Upper and Lower Echo, Fallen Leaf, Spooner, and Marlette Lakes and Associated Outlet Streams, California and Nevada, 2002-03 [USGS_OFR_2004_1333]
Five lakes and their outlet streams in the Lake Tahoe Basin were sampled for nutrients during 2002-03. The lakes and streams sampled included Upper Echo, Lower Echo, Fallen Leaf, Spooner, and Marlette ...


24. Nutrients Data (Lietz) [USGS_SOFIA_Nut_Data_Lietz]
This project attempted to quantify nitrogen and phosphorus loads to Biscayne Bay based upon models developed from ordinary least squares regression techniques. It also examined which historical methods ...


25. Rainfall, Runoff, and Water-Quality Data for the Urban Storm-Water Program in the Albuquerque, New Mexico, Metropolitan Area, Water Year 2004 [USGS_OFR_2006_1105]
Urbanization has dramatically increased precipitation runoff to the system of drainage channels and natural stream channels in the Albuquerque, New Mexico, metropolitan area. Rainfall and runoff data ...


26. Raster dataset showing the probability of detecting atrazine/desethyl-atrazine in ground water in Colorado, hydrogeomorphic regions and atrazine use estimates included. [USGS_atra_hyd_use]
This dataset is one of eight datasets produced by this study. Four of the datasets predict the probability of detecting atrazine and(or) desethyl-atrazine (a breakdown product of atrazine) in ground ...


27. Raster dataset showing the probability of detecting atrazine/desethyl-atrazine in ground water in Colorado, hydrogeomorphic regions included and atrazine use estimates not included [USGS_atra_hyd_nuse]
This dataset is one of eight datasets produced by this study. Four of the datasets predict the probability of detecting atrazine and(or) desethyl-atrazine (a breakdown product of atrazine) in ground ...


28. Residue Decomposition Processes and Soil C Storage in Agro-Ecosystems [USDA.ARS.GSWRL.ResidueDecomp]
(Adapted from Abstract presented at ARS Carbon Storage Workshop, Baltimore, MD, Jan 1999) Problems: The combined impact of population increases, industrial expansion, and deforestation has resulted ...


29. Risk of nitrate contamination in ground waters of the United States-- A national perspective [USGS_gwrisk]
This map was designed to present patterns of risk for nitrate contamination at large regional or national scales. Knowing where and what type of risks to ground water exist can alert water-resources ...


30. River and Stream Water Quality Monitoring in Washington State [wa_de_riverandstreamwaterqual]
The Washington State Department of Ecology has conducted monthly water quality monitoring at hundreds of stream stations throughout the state since before 1959. Currently, the Stream Monitoring Unit ...


31. State of the Chesapeake Bay Report [CBF_StateofChesapeake]
The State of the Bay Report is an annual report that provides the results on the health and environmental condition of the Chesapeake Bay. To create the ...


32. Streamflow and Nutrient Fluxes of the Mississippi-Atchafalaya River Basin and Subbasins for the Period of Record Through 2005 [USGS_OFR_2007_1080]
The U.S. Geological Survey has monitored streamflow and water quality systematically in the Mississippi-Atchafalaya River Basin (MARB) for more than five decades. This report provides streamflow and ...


33. Surface- and Ground-Water Monitoring and Mapping of Selected Features at the Blue Ridge Parkway Mt. Pisgah Campground, Haywood County, North Carolina, 2002 [USGS_OFR_2004_1073]
During 2002, a baseline study of hydrologic conditions was conducted, and selected features were mapped within the Mt. Pisgah campground on the Blue Ridge Parkway in Haywood County, North Carolina. ...


34. Surface-Water-Quality Assessment of the Yakima River Basin, Washington [WRIR_98_4113]
Surface-water-quality conditions were assessed in the Yakima River Basin, which drains 6,155 square miles of mostly forested, range, and agricultural land in Washington. The Yakima River Basin is ...


35. The Distribution of Trace Metals in Florida Bay Sediments. [RSMAS_FJM-003]
The distribution of trace metals based on surface sediments collected at 40 stations across Florida Bay was done in June, November and February 2000-2001. Concentrations of Sc, V, Ba, Cd, Cr, Co, ...


36. The changes in the physical, chemical and biological processes in melt water ponds during the late season freeze processes into the polar winter at Bratina Island [K081_2007_2008_NZ_2]
How the onset of winter conditions affects the physical and chemical conditions within the melt water ponds on the McMurdo Ice Shelf (of which summer information is available) and how these changes ...


37. The ecology (tidal and weather records, distribution and abundance of microbes and quantification of nitrogen transformation) of an Antarctic tidal lagoon and mudflats at Bratina Island, McMurdo Ice Shelf [K081_1992_1993_NZ_2]
A tidal lagoon at Bratina Island experiences a daily inundation with tidal height varying. Low tide reveals a network of ponds, streams and tidal flats that appear to be highly productive with all ...


38. The physical and biological structure of the water column in Lake Vanda and the influences to it from the inflow of the Onyx River [K081_1993_1996_NZ_2]
The waters of Lake Vanda, Wright Valley have risen at a rate of 1m per year. The rise was largely attributed to increased flows in its only significant inflow, the Onyx River. Prior to the first flows ...


39. The transformation of nutrients in glacial meltstream waters from origin to discharge [K081_2000_2001_NZ_3]
Two stream were examined for the rates and directions of transformation of nutrients, Green Creek and Canada Stream. Both of these streams drain into Lake Frxyell in the Taylor Valley. Each stream ...


40. USGS Chesapeake Bay Activities [USGS_Chesapeake]
The Chesapeake Bay, the Nation's largest estuary, has been degraded due to water quality problems, loss of habitat, and over harvesting of living resources. Additionally, the Bay was listed under ...


41. Upper Klamath Lake Basin Nutrient-Loading Study-Assessment of Historic of Flows in the Williamson and Sprague Rivers [WRIR_98_4198]
The Williamson River Basin, located in south-central Oregon, has a drainage area of approximately 3,000 square miles. The Sprague River, which flows into the Williamson River Basin, has a drainage ...


42. Vermont Department of Environmental Conservation - Lake Champlain Long-term Monitoring [VTANR_VTDEC_WQD_LAKE-CHAMPLAIN]
On-going 10 year monitoring dataset from 12 long-term and 52 synoptic stations on Lake Champlain. Water chemistry parameters are measures bi-weekly throughout the openwater season. Tributary loadings ...


43. Vermont Department of Environmental Conservation - Long Term Acid Precipitation Monitoring Program [VTANR_VTDEC_WQD_ACID-LAKES]
Long-term acidification monitoring dataset. This is a component of the LRTAP and NADP programs.


44. Vermont Public Water System Water Quality Information [anr_dec_wsd_pwswaterquality]
The water quality data is submitted under the requirements of the Safe Drinking Water Act. The results may represent water quality from multiple sources or types of sources (i.e., surface water and ...


45. Walnut Creek Watershed Database from the USDA National Soil Tilth Laboratory [USDA_WALNUT_CREEK]
The Walnut Creek Watershed is a 12,700-acre watershed located south of Ames, IA. The watershed has been monitored since 1990 for the transport of herbicides (atrazine, alachlor, metribuzin, metolachlor) ...


46. Water Pollution Indicators for the World Water Development Report II [UNH_WWRDII_WATPOL]
Gridded fields of nitrogen (N) loads and flux. Mobilizable N (N loads) represent the amount of N on the land surface that is available to be transported to aquatic systems. N fluxes represent the ...


47. Water Quality Data for the Cuyahoga Valley National Recreation Area, 1957-1994, from EPA/STORET [CSUOHIO_CESTP_EDP_19970040]
This dataset was compiled as part of the National Park Service's (NPS) Baseline Water Quality Data Inventory and Analysis Project. The objective of this project was to retrieve, format, and analyze ...


48. Water Quality Data from the Chesapeake Bay Program [CBP_WATERQUAL_WWW]
The Chesapeake Bay Program is a voluntary partnership among the states of Maryland, Virginia, and Pennsylvania; the District of Columbia; the Chesapeake Bay Commission, a tri-state legislative body; ...


49. Water Quality Physical Parameters Data (Lietz) [USGS_SOFIA_waterqual_lietz]
The data set contains values for water temperature, pH, specific conductance, dissolved oxygen, sample location cross section, and sampling depth at 5 sites. The sites are: Biscayne Canal at S-28 ...


50. Water Quality and Algal Data for the North Umpqua River Basin, Oregon, 2005 [USGS_DS_2006_229]
The upper North Umpqua River Basin has experienced a variety of water-quality problems since at least the early 1990's. Several reaches of the North Umpqua River are listed as water-quality limited ...


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