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45 Titles Match Your Query
Showing 1 through 45 of 45
1. Lake Fryxell benthic ecology [K081_2009_2013_NZ_2]
In 2012/2013 we collected Samples and data collected along a depth transect at Lake Fryxell. This samples were collected by a dive team. The samples included water chemistry and microbial mat sampling. ...


2. Field measurement, major ion, and nutrient data for water from the Big Cypress National Preserve [USGS_SOFIA_field_data_bicy]
The data catagories include site name, date, time, station ID, record #, agency analyzing sample, agency collecting sample, discharge (daily mean), gage height, lab spec condition, field spec condition, ...


3. LBA-ECO ND-11 Stream Carbon and Nutrients, Mato Grosso, Brazil: 2003-2006 [LBA_ND11_Stream]
This data set contains baseflow streamwater concentrations of pH, specific conductivity, base cations, carbon (dissolved organic carbon (DOC), particulate organic carbon (POC) and bicarbonate alkalinity) ...


4. Validations of a numerical model of solute transport in a snowpack [KPDC_VNMST_2012]
Snowmelt from seasonal snow covers can be significant in many environments of northern and alpine areas. Water flow and chemical transport resulting from snowmelt have been studied for an understanding ...


5. LBA-ECO ND-01 STREAMWATER AND WATERSHED CHARACTERISTICS, RONDONIA, BRAZIL: 1998-1999 [ND01_STREAM_CHEMISTRY]
This data set provides the results of (1) synoptic streamwater sampling and analyses from numerous sites across Rondonia and (2) corresponding watershed characteristics derived from remote sensing ...


6. LBA-ECO ND-03 FOREST AND PASTURE WATERSHED HYDROCHEMISTRY, RONDONIA, BRAZIL [ND03_FLOWPATH_CHEMISTRY]
This data set consists of water chemistry data from streams, wells, rainwater, and canopy throughfall samples. The field measurements were carried out at Rancho Grande in the Brazilian state of Rondonia, ...


7. LBA-ECO ND-02 STREAM WATER CHEMISTRY, PARAGOMINAS, PARA, BRAZIL: 1999-2005 [ND02_WATER_CHEMISTRY_PARAGOMIN]
This data set includes measurements of dissolved nutrient and organic carbon concentrations, as well as dissolved oxygen, alkalinity, conductivity, turbidity, pH, and discharge from three streams ...


8. Characterisation of aquatic resources in McMurdo Sound region of Antarctica: water chemistry, biological identity and genomic samples [K081_2009_2010_NZ_1]
Aquatic environments in Antarctica have changes over time with a changing climate. Small aquatic zones on the surface of glaciers ablation zones are comparatively constant and represent perhaps the ...


9. LBA-ECO ND-07 HYDROCHEMISTRY OF NATURAL AND DEVELOPED LAND COVER, BRASILIA, BRAZIL [LBA_ND07_STREAMWATER_CHEMISTRY]
This data set reports on dissolved nutrient concentrations, as well as dissolved oxygen, alkalinity, conductivity, turbidity, and pH measured in water samples collected from nine streams located in ...


10. Water Quality in the Yukon River Basin, Alaska, Water Years 2006-2008 [USGS_OFR_2010_1241]
The Yukon River Inter-Tribal Watershed Council and the U.S. Geological Survey developed a water-quality monitoring program to address a shared interest in the water quality of the Yukon River and ...


11. The hydrology (pattern of flow and composition of meltwater) of a cold based glacier, Wright Lower Glacier, Wright Valley, Antarctica [K064_2004_2007_NZ]   CHILD DIFs
The seasonal melt regime of the Wright Lower Glacier, Wright Valley, Dry Valleys, Antarctica was investigated and monitored over three field seasons (04-05, 05-06 and 06-07). The water cycle, which ...


12. Sampling based chemical and biogeochemical stratification profiles of melt water ponds at Bratina Island, McMurdo Ice Shelf [K081_2005_2006_NZ_2]
A comprehensive suite of geochemical samples and measurements from a selection of meltwater ponds at Bratina Island was collected in the 2005/06 and 2006/07 seasons. The purpose was to help identify ...


13. Polar Urals Environmental Change after Last Ice Age (#1217, PUECH, IV IPY) – hydrology, hydrochemistry and meteorology [PUECH-hydro]
The PUECH-Hydro consists of hydrological and meteorological data, which were collected during project Polar Urals Environmental Change after Last Ice Age (PUECH, no. #1217). The PUECH was organized ...


14. Data on freshwater and hydrochemistry in the Antarctic Peninsula region. [CNDP-ESP_GEOANT-UAM_Freshwater]   PARENT DIF
In English: Surface freshwater, snow and groundwater studies in the Antarctic Peninsula region and Ellsworth Mountains. Hydrochemical data. From projects of the research group on Geology of the University ...


15. Investigation of the physics (heat balance) and chemistry of Lake Bonney, Taylor Valley, 1962-1963 [K042_1962_1963_NZ_1]
The heat balance and chemistry of Lake Bonney was investigated in the 1962-63 field season. Temperature profiles were measured through 11 holes drilled in the surface ice of Lake Bonney. Of these, ...


16. Investigation of the physics (heat balance) and chemistry of Lake Vanda, Wright Valley, 1961-1962 [K042_1961_1962_NZ_1]
The first study of the physics and chemistry of Lake Vanda and the geology of the surrounding area were investigated in the 1961-1962 field season. Twelve holes were drilled at 1000ft intervals along ...


17. Measurements of water temperature, spectral irradiance (amount of sunlight), density and salt concentration from lakes in the Taylor and Wright Valley [K042_1963_1964_NZ_1]
The physics and chemistry of the many lakes and ponds in the McMurdo Dry Valleys was investigated in the 1963-64 field season. Previous work on Lakes Vanda and Bonney in the Wright and Taylor Valleys ...


18. Effects of water hardness on slough-wet prairie plant communities of the A. R. M. Loxahatchee National Wildlife Refuge [USGS_SOFIA_hardness_swp_lnwr]
Alterations to ground-water and surface-water hydrology and water chemistry in South Florida have contributed to increased flows of mineral-rich (hard water) canal water into historically rain-fall ...


19. Field measurements, major ions, nutrient, and carbon data for Bridge-105 and the 40-Mile Bend to Monroe reach in the Big Cypress National Preserve [USGS_SOFIA_field_data_br105]
The data catagories include site name, date, time, station ID, medium, record #, agency analyzing sample, agency collecting sample, discharge (daily mean and instantaneous), gage height, lab spec ...


20. Field measurements, major ions, nutrient, and carbon data for sites in the interior of the Everglades National Park [USGS_SOFIA_field_data_interEver]
The data catagories include site name, date, time, station ID, medium, record #, agency analyzing sample, agency collecting sample, discharge (daily mean and instantaneous), gage height, lab spec ...


21. Water chemistry and biology of the Canada Glacier glacial meltwater stream [K009_1981_1982_NZ_1]
Lake water chemistry is relatively well understood, whereas in comparison stream waters have been little studied. The chemistry of glacial meltwater from the Canada Glacier was characterised and the ...


22. Chemical and nutrient analysis of meltwaters in the Victoria Valley and Bull Pass [K091_1989_1990_NZ_1]
Baseline chemistry data for ponds and lakes in the Victoria Valley/Bull Pass region was collected in January 1990. Water samples were taken from Upper Victoria Glacier drainage, Lake Victoria, Lake ...


23. Trace element distribution and speciation in Lake Vanda, Wright Valley, Antarctica [K093_1987_1988_NZ_1]
In Nov/Dec 1987, waters were sampled from Lake Vanda, Don Juan Pond, and the Onyx River (Wright Valley) to provide information on major ion and trace element chemistry and behaviour under the range ...


24. Analysis of water and soil samples for pollutants (trace metals, major anions, mercury) to determine the nature and extent of contamination in meltwaters in the Ross Dependency [K105_1992_1994_NZ_1]
A set of baseline data for the composition of meltwaters in the Ross Dependency, with particular concentrations on the levels of ultra trace heavy metals in waters remote from significant or current ...


25. Heavy metal analysis of soil samples from pits excavated around Scott Base [K105_1993_1994_NZ_1]
Comparison of soils from Scott Base (site with human activity) with baseline data taken from pristine sites around the Ross Dependency (without human activity) found elevated levels of most heavy ...


26. Salt, nutrient and other contaminant analysis of soil samples taken near the old Vanda Station [K105_1993_1994_NZ_2]
Water and soil samples from Vanda Station were found to have contamination by apparently anthropogenically derived components (such as heavy metals) and these contaminants are moving in the soils ...


27. Soil and salt samples and geological observations from high altitude sites in the Upper Taylor Valley to determine the history of the Antarctic environment through the composition of salts in soils [K105_1997_1998_NZ_1]
To understand the processes of Antarctic soils as they affect the composition and distributions of salts and ice in and below the soils, the salts in very old soils and paleosols were investigated. ...


28. Loxahatchee National Wildlife Refuge Data [USGS_SOFIA_LOX_NWR_data]
The Loxahatchee National Wildlife Refuge (LOX) is a water-dominated ecosystem that is susceptible to water-quality impacts. A comprehensive analysis of historical water-quality and ancillary data ...


29. Ecological investigation of nitrogen sources and sinks in Lake Wilson and three catchment ponds in the Darwin Glacier region [K081_1992_1993_NZ_1]
Ecological investigations into the waters of the Darwin Glacier region (extreme southern end member to the Dry Valley system) were carried out to extend knowledge of microbial processes to high latitude ...


30. The change in metabolism, and chemical and physical dynamics, after a transition from light to dark conditions, of melt water ponds on the McMurdo Ice Shelf [K081_2007_2008_NZ_1]
Detailed assessments of the metabolism in one melt water pond on the McMurdo Ice Shelf was investigated. The pond chosen had considerable background knowledge on its general chemistry and biology, ...


31. 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 ...


32. The factors controlling planktonic primary and secondary production in 22 meltwater ponds varying in chemical conditions, and in layers of stratified ponds [K081_2006_2007_NZ_1]
The importance of the large differences in chemistry in the ponds of the McMurdo ice shelf for their planktonic productivity was examined by comparing rates of primary (algal) production and secondary ...


33. Aqueous geochemistry of the melt pools on the McMurdo Ice Shelf : A collaboration with the RISE (Ross Ice Shelf Ecosystem) programme [K013_1987_1988_NZ_1]
A large freshwater ecosystem on the McMurdo Ice Shelf and the lower Koettlitz Glacier, in the Ross Dependency, is an area some 1500 km2 . The area is covered by pools, lakes, streams and rivers, many ...


34. Biogenic gas emissions from glacial melt water ponds on the McMurdo Ice Shelf : A collaboration with the RISE (Ross Ice Shelf Ecosystem) programme [K013_1993_1994_NZ_1]
Aspects of the biogeochemical cycling of sulphur and iodine was examined on the McMurdo Ice Shelf at Bratina Island to investigate the role of glacial melt water ponds as a biogenic source of sulphur ...


35. Global Water Quality Data and Statistics (GEMStat) from UNEP Global Environmental Monitoring System (GEMS) Water Programme [UNEP_GEMSTAT]
The United Nations Environment Programme Global Environment Monitoring System (GEMS) Water Programme is a multi-faceted water science centre oriented towards building knowledge on inland ...


36. Ground-Water Quality in the Mohawk River Basin, New York, 2006 [USGS_OFR_2008_1086]
Water samples were collected from 27 wells from August through November 2006 to characterize ground-water quality in the Mohawk River Basin. The Mohawk River Basin covers 3,500 square miles in central ...


37. Circulation and Physical Processes within the San Gabriel River Estuary During Summer 2005 [USGS_OFR_2007_1011]
The Southern California Coastal Water Research Project (SCCWRP) is developing a hydrodynamic model of the SGR estuary, which is part of the comprehensive water-quality model of the SGR estuary and ...


38. 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 ...


39. Water-Chemistry Data for Selected Hot Springs, Geysers, and Streams in Yellowstone National Park, Wyoming, 2001-2002 [USGS_OFR_2004_1316]
Water analyses are reported for one-hundred-twenty-one samples collected from hot springs and their overflow drainages, the Gibbon River, and one ambient-temperature acid stream in Yellowstone National ...


40. Water-Quality Data, Huron County, Michigan 2004 [USGS_OFR_2005_1380]
The U.S. Geological Survey (USGS) conducted a survey of water quality and quantity in Huron County, Michigan from 1988-1990 (Sweat, 1992). In that study atrazine, a widely-used agricultural herbicide ...


41. Changes of major ion concentrations in melting snow and terrestrial waters from northern Victoria Land, Antarctica. [Ion_concentr_Victoria_Land]
Concentrations of major ions (Cl-, NO3-, SO42-, Na+, K+,Mg2+, Ca2+) where measure in melting snow and water samples from stream and lakes in ice-free areas throughout northern Victoria Land. Most ...


42. Evolution and biogeochemical cycles of metal species in marine and lacustrine environments [MetalIonsInMarineAndLacustrEnv]
1995/96 Characterization of minor and trace metals in lacustrine ecosystems (Carezza Lake, Inexpressible Island, Tarn Flat, Edmondson Point). Determinations in lake waters, sediments, algae and soil. ...


43. The Sea as major source of ions to lichens in terrestrial ecosystems of Victoria Land [Ions_to_lichens_Victoria_Land]
Lichens and mosses constitute the bulk of plant biomass in terrestrial ecosystem of continental Antarctica. On the hypothesis that cryptogams can be used as an early warning system to detect the effects ...


44. Watershed Assessment, Tracking and Environmental Results [EPA_WATERS]
The Environmental Protection Agency (EPA), in partnership with states, territories and tribes, is improving communication with the regulated community and the public about the quality of the Nation?s ...


45. 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 ...


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