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Location Folder Show Tree ROOT _ScienceBase Catalog __Alaska Science Center (ASC) ____Water Ice & Landscapes Low-Altitude Photographic Transects of the Arctic Network of National Park Units and Selawik National Wildlife Refuge, Alaska, July 2013 Filters Date Types (for Date Range) Contacts Alaska Science Center USGS ScienceBase Team Janet H Curran Water Resources Paul V Schauer Water Resources Categories Data (2) Data Release - Revised (1) Tag Types Theme (2) USGS Scientific Topic Keyword (2) Harvest Set (2) Place (2) Tag Schemes NASA GCMD Earth Science Keyword Thesaurus (2) USGS Thesaurus (2) ISO 19115 Topic Category (2) None (1) USGS Geographic Names Information System (GNIS) (2) Alexandria Digital Library Feature Type Thesaurus (1) View Results as: JSON ATOM CSV Browse Folder

Sounding Cross Section Surveys at Alaska Bridge Crossings Since 1993 the U.S. Geological Survey (USGS) has worked with the Alaska Department of Transportation and Public Facilities (ADOT&PF) to provide hydraulic assessments of scour for bridges throughout Alaska. As part of this effort, repeat channel cross section surveys, or channel soundings, have been collected at either the upstream or downstream side of bridges on an annual or as needed basis. Streambed and bank elevations are measured using USGS sounding weights and reels, weighted measuring tapes, acoustic Doppler current profilers, multibeam echo sounders and light detection and ranging and are referenced to the datum of as-built plan set to provide context for the streambed elevations in relation to bridge structures.... Categories: Data, Data Release - Revised; Tags: ADCP, Acoustic Doppler Current Profiling, Alaska, Bridges, Discharge/flow, All tags... Geomorphology, Hydrology, Hydrology, InlandWaters, Rivers/streams, Scour, Streambed, Terrestrial Hydrosphere, USGS Science Data Catalog (SDC), Water Resources, Fewer tags Summary of Selected Basin and Streamflow Special Conditions for USGS Streamgages in Alaska This dataset summarizes selected basin and streamflow special conditions for USGS streamgages in Alaska that are commonly used for site and period of record selection for regional analyses, through water year 2022. The data consist of a table providing information about the type of streamflow available for the site, site special conditions related to the timing of data collection, basin special conditions related to drainage area and urbanization, and a summary of water years for daily mean streamflow and annual peak streamflow affected by regulation or outburst flooding. The data were compiled using peak-streamflow codes assigned in the USGS National Water Information System (NWIS; https://doi.org/10.5066/F7P55KJN),... Categories: Data; Tags: Alaska, Discharge/flow, Floods, Hydrographic datasets, Hydrology, All tags... Hydrology, InlandWaters, Rivers/streams, Terrestrial Hydrosphere, Time series datasets, USGS Science Data Catalog (SDC), Water Resources, Fewer tags