Filters: Tags: DOC (X) > Types: Map Service (X)

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Water quality and gas fluxes of Interior Alaska (2014-2018) This product consists of multiple tabular datasets and associated metadata of water quality information related to rivers, streams, and lakes in the Yukon River watershed between 2014 and 2018. This data release is apart of the National Aeronautics and Space Administration (NASA) funded Arctic-Boreal Vulnerability Experiment (ABoVE) and is an assessment of water quality and greenhouse gas fluxes within the interior of Alaska. Sampling frequency varied across locations, with some sites sampled twice a year or more. Data consist of: organic and inorganic carbon related species, carbon dioxide and methane gas fluxes calculated from manual chamber measurements, nitrogen species, carbon isotopes, oxygen and deuterium... Categories: Data; Types: Data, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alaska, Boot Lake, CH4, CO2, CO2 Bubble Trap, All tags... Canvasback Lake, Carbon, DIC, DOC, Dalton Highway, Datasets/Database, Interior Alaska, Steese Highway, USGS Science Data Catalog (SDC), Water Quality, Water Resources, Yukon Flats, alkalinity, ammonium, anion, biogeochemical cycling, calcium, carbon dioxide, carbon flux, cation, chloride, deuterium, dissolved inorganic carbon, dissolved organic carbon, greenhouse gas flux, lake chemistry, magnesium, methane, nitrate, nitrogen, sodium, specific conductance, stream chemistry, sulfate, total dissolved nitrogen, total iron, water chemistry, water isotopes, water quality, water resources, Fewer tags USA Average Household Size This thematic map presents the average household size in the United States in 2010; the average household size for the U.S. in 2010 is 2.59. The 2010 Average Household Size is the household population divided by total households. This map shows Esri's 2010 estimates using Census 2000 geographies. The geography depicts States at greater than 25m scale, Counties at 750k to 25m scale, Census Tracts at 150k to 750km scale, and Census Block Groups at less than 150k scale. This thematic map presents the average household size in the United States in 2010; the average household size for the U.S. in 2010 is 2.59. The 2010 Average Household Size is the household population divided by total households. This map shows... Categories: Data; Types: ArcGIS REST Map Service, Map Service; Tags: Census, Children, DOC, Demographics, US Census Bureau, All tags... US Department of Commerce, average household size, family, population, size, Fewer tags USA Unemployment Rate This thematic map illustrates the unemployment rates in the United States in 2010. The 2010 Unemployment Rate reflects Esri's estimates for July 1, 2010. All civilians aged 16 years and older were classified as unemployed if they were looking for work during the last 4 weeks, and were available to start a job. Esri's totals do not include figures for seasonal workers. This data is part of Esri's Updated Demographics (2010/2015). This map shows Esri's 2010 estimates using Census 2000 geographies. This thematic map illustrates the unemployment rates in the United States in 2010. The 2010 Unemployment Rate reflects Esri's estimates for July 1, 2010. All civilians aged 16 years and older were classified as unemployed... Categories: Data; Types: ArcGIS REST Map Service, Map Service; Tags: Block groups, Census, DOC, Department of Commerce, Employment, All tags... Tracts, US Census Bureau, Unemployment rate, Fewer tags Spatial heterogeneity of the spring flood acid pulse in a boreal stream network. Synopsis: This paper describes the spatial distribution of pH measurements from 60 sites distributed throughout the Kychlan River catchment, a 67km⊃2; boreal watershed in northern Sweden. Water samples were collected during a period of winter baseflow and during a spring flood episode. Chemical analyses included pH, Dissolved Organic Carbon (DOC), major cations (K, Mg, Na, Ca) and total filterable aluminum. Spring flood pH was shown to be highest in larger, lower altitude catchments underlain by fine sorted sediments, and lowest in small, higher altitude catchments underlain by a mixture of peat wetlands and forested till. There was also a trend with distance downstream of higher pH, acid neutralizing capacity and... Categories: Publication; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ANC, Boreal Watershed, DOC, Krychlan River, Natural cover amount, All tags... Sweden, boreal catchments, local, pH, percent native, protected area, snowmelt, spatial heterogeneity, wetlands, Fewer tags Landscape indictors of human impacts to riverine systems Conclusions: The proportion of wetlands in the watershed at different scales affects dissolved organic carbon (DOC) concentrations in downstream lakes and rivers. Thresholds/Learnings: Synopsis: This study quantifies how the proportion of wetlands in the watershed at different scales affects dissolved organic carbon (DOC) concentrations in downstream lakes and rivers. Whether the watershed influence varies with season or hydrologic type of lake was also examined. The scaling and modelling approach used offered a useful way to examine heterogeneity of land cover types within the watershed and spatial arrangements, while allowing generality of conclusions with a large sample size. Zones of increasing distance from... Categories: Publication; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Agriculture, DOC, Dissolved Organic Carbon, Forest, Human Impacts, All tags... Indicator, Landscape metrics, Natural cover amount, North America, Rivers, Wetland, configuration, forest/agriculture, habitat configuration, lakes, local (watershed), rivers, wetland extent, Fewer tags