de.pangaea.dataset909230 und dataset PANGAEA

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https://www.pangaea.de/ information pointOfContact 2026-04-30T22:01:50Z https://doi.pangaea.de/10.1594/PANGAEA.909230 2019-11-29T09:17:43 publication https://doi.org/10.1594/PANGAEA.909230 Wickham, James

wickham.james@epa.gov

author PANGAEA

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https://www.pangaea.de/ information publisher tableDigital Although rarely studied, stream confluences may be biological hotspots within fluvial networks and the surrounding landscape. To invigorate study of the ecological value and role of stream confluences in fluvial networks, we have produced a database of stream confluences and their associated watershed attributes for the conterminous United States. The database includes 1,085,629 stream confluences and 383 attributes for each confluence that are organized into 15 database tables for both tributary and mainstem upstream catchments ("local" watersheds) and watersheds. Themes represented by the database tables include hydrology (e.g., headwater or not), land cover and land cover change, geology (e.g., sodium content of underlying lithosphere), physical condition (e.g., elevation), measures of ecological integrity, and stressors (e.g., impaired streams). We also used the measures of ecological integrity to assess the condition of the stream confluences. Aside from a generally positive east-to-west gradient in ecological condition, we found that approximately one-third of the confluences have markedly contrasting ecological conditions between mainstem and tributary, catchment and watershed, or both. completed Wickham, James

wickham.james@epa.gov

principalInvestigator EnviroAltas fluvial networks NLCD StreamCat theme 1995-01-01 creation PANGAEA

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https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-4.0: Creative Commons Attribution 4.0 International textTable und geoscientificInformation -123.8 -80.8 27.7 48.2 File name thematicClassification File format thematicClassification File size physicalMeasurement kByte kByte Uniform resource locator/link to file thematicClassification text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.909230?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: USA_cont * LATITUDE START: 48.200000 * LONGITUDE START: -123.800000 * LATITUDE END: 27.700000 * LONGITUDE END: -80.800000 * LOCATION: United States of America