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Routed regional river centerline data layer using the polylineM feature format with measures in kilometers. The stream route layer includes stream locations where, on the basis of the raster model used to create the data layer, surface water may have once existed, but is now piped, culverted or thought to be buried. Likewise the layer includes centerlines through water bodies, i.e. portions of streams that connect with larger bodies of water such as wetlands, ponds, etc. Thus many portions of a stream route feature are included primarily to complete the centerline network for routing purposes. Downloaded from Metro's RLIS Discovery site on 7/2/2012.
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Benthic invertebrate communities are monitored because the composition of those communities can affect and be affected by the water quality of an aquatic system. Benthic communities use and sometimes regulate the cycling of essential elements (for example, carbon). Benthic invertebrate taxa may also indicate acute and chronic stressors in an environment because they accumulate contaminants and can respond – sometimes dramatically - to oligotrophic and eutrophic conditions. Benthic communities affect water quality by grazing pelagic food resources and increasing the rate of nutrient regeneration through feeding and bioturbating sediments. South San Francisco Bay is a system dependent on phytoplankton as the base...
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Final distribution model for the aquatic coarse filter CE: Low Gradient Streams (Lowland Stream and Slough). These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. These data may not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications that potential users of the data may contemplate. The User is encouraged to carefully consider the content of the metadata file associated with these data. The BLM should be cited as the data source in any products...
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This dataset includes mercury and other constituent concentration and physical properties data for seven deep sediment profiles (ranging from 79 cm to 214 cm in length) collected from the thalwag of Alviso Slough, a major tributary to South San Francisco Bay (California, USA). Field sampling occurred during May 2012 (4 sites) and January 2016 (3 sites). Each profile was comprised of 1–4 core sub-sections, which were collected from adjacent boreholes with 10–18 cm of vertical overlap. This data product includes two data tables (*.csv): 1) ‘T1_ALSL_DC_Sed_Data.csv’, the deep core analytical results; 2) ‘T2_ALSL_DC_QA_Data.csv’, quality assurance data. The two image files, ‘ALSL_DC_Log_2012.pdf’ and ‘ALSL-DC_Log_2016.pdf’,...
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Rivers, streams, lakes and other water bodies of the Metro region. Downloaded from Metro's RLIS Discovery site on 7/2/2012.
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Final distribution model for the aquatic coarse filter CE: Low Gradient Streams (Lowland Stream and Slough). These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. These data may not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications that potential users of the data may contemplate. The User is encouraged to carefully consider the content of the metadata file associated with these data. The BLM should be cited as the data source in any products...
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Major river and water body outlines derived from Metro's Riv_poly data layer. Includes: the Columbia, Willamette, Sandy, Clackamas and Lewis Rivers; Lake Oswego; Smith, Bybee, Vancouver and Sturgeon Lakes. Downloaded from Metro's RLIS Discovery site 7/2/2012.
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Major rivers and water bodies derived from Metro's Riv_poly data layer. Includes: the Columbia, Willamette, Sandy, Clackamas and Lewis Rivers; Lake Oswego; Smith, Bybee, Vancouver and Sturgeon Lakes. Downloaded from Metro's RLIS Discovery site 7/2/2012.


    map background search result map search result map Stream routes (projected and existing), Portland Metro Region, Oregon Major Rivers (line), Portland Metro Region, Oregon Major Rivers (polygon), Portland Metro Region, Oregon Streams (line) of the Portland Metro region, Oregon Mercury speciation and other constituent data from deep sediment cores in Alviso Slough, South San Francisco Bay, California, 2012-16 Benthic Community Dynamics in Coyote Creek and Artesian Slough, Southern San Francisco Bay, California, May 2016 to March 2018 BLM REA SNK 2010 AE Ecosystems Status Low Gradient Streams Mercury speciation and other constituent data from deep sediment cores in Alviso Slough, South San Francisco Bay, California, 2012-16 Benthic Community Dynamics in Coyote Creek and Artesian Slough, Southern San Francisco Bay, California, May 2016 to March 2018 Major Rivers (line), Portland Metro Region, Oregon Major Rivers (polygon), Portland Metro Region, Oregon Stream routes (projected and existing), Portland Metro Region, Oregon Streams (line) of the Portland Metro region, Oregon BLM REA SNK 2010 AE Ecosystems Status Low Gradient Streams