Streamgages

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Frequently anticipated questions:


What does this data set describe?

Title: Streamgages
Abstract:
Digital shapefile showing the location of three streamgages, 1. Winooski River at Montpelier, Vermont, 2. Winooski River above Crossett Brook in Waterbury, Vermont, and 3. Winooski River at Essex Junction, Vermont.
  1. How should this data set be cited?

    Scott Olson, U.S. Geological Survey, 20150228, Streamgages: Scientific Investigations Report 2015-5077.

    Other_Citation_Details:
    Additional details regarding the shapefile and its development can be found in Olson, S.A., 2015, Flood maps for the Winooski River in Waterbury, Vermont, 2014: U.S. Geological Survey Scientific Investigations Report 2015-5077, xx p.
    This is part of the following larger work.

    U.S. Geological Survey, 20150331, Flood maps for the Winooski River in Waterbury, Vermont, 2014: U.S. Geological Survey Scientific Investigations Report 2015-5077.

    Online Links:

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -73.138456
    East_Bounding_Coordinate: -72.593176
    North_Bounding_Coordinate: 44.480127
    South_Bounding_Coordinate: 44.254931

  3. What does it look like?

  4. Does the data set describe conditions during a particular time period?

    Calendar_Date: 05-Dec-2014
    Currentness_Reference: Generated in 2014

  5. What is the general form of this data set?

    Geospatial_Data_Presentation_Form: vector digital data

  6. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

      This is a Vector data set. It contains the following vector data types (SDTS terminology):

      • Entity point (3)

    2. What coordinate system is used to represent geographic features?

      The map projection used is NAD 1983 StatePlane Vermont FIPS 4400.

      Projection parameters:
      Scale_Factor_at_Central_Meridian: 0.9999642857142858
      Longitude_of_Central_Meridian: -72.5
      Latitude_of_Projection_Origin: 42.5
      False_Easting: 500000.0
      False_Northing: 0.0

      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 0.0000000022208457295391785
      Ordinates (y-coordinates) are specified to the nearest 0.0000000022208457295391785
      Planar coordinates are specified in meter

      The horizontal datum used is D North American 1983.
      The ellipsoid used is GRS 1980.
      The semi-major axis of the ellipsoid used is 6378137.0.
      The flattening of the ellipsoid used is 1/298.257222101.

  7. How does the data set describe geographic features?

    Streamgages
    Streamgage location (Source: Author)

    FID
    Internal feature number. (Source: Esri)

    Sequential unique whole numbers that are automatically generated.

    Shape
    Feature geometry. (Source: ESRI)

    Coordinates defining the features.

    Id
    Internal feature number (Source: ESRI)

    Sequential unique whole numbers that are automatically generated.

    STANUM
    Station number of the streamgage (Source: USGS)

    Numbers representing streamgage indentifer.

    name
    Streamgage name (Source: USGS)

    Text


Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  2. Who also contributed to the data set?

    U.S. Geological Survey, New England Water Science Center, in cooperation with the Federal Emergency Management Agency (FEMA).

  3. To whom should users address questions about the data?


Why was the data set created?

The shapefile portrays the location of the three streamgages used in the investigation flood maps for the Winooski River in Waterbury, Vermont, 2014.


How was the data set created?

  1. From what previous works were the data drawn?

  2. How were the data generated, processed, and modified?

  3. What similar or related data should the user be aware of?


How reliable are the data; what problems remain in the data set?


How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints: None
Use_Constraints:
Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of this data, software, or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. The flood boundaries shown were estimated using water stages at the USGS streamgaging station 04288040, Winooski River above Crossett Brook at Waterbury, Vermont, steady-state hydraulic modeling (assuming unobstructed flow) and a digital elevation model. The hydraulic model reflects the land-cover characteristics and any bridge, dam, levee, or other hydraulic structures existing July 2013. Unique meteorological factors (timing and distribution of storm) could cause actual streamflows along the modeled reach to vary from those assumed during a flood, which may lead to deviations from the water-surface elevations and inundation boundaries shown here. Additional areas may be flooded owing to unanticipated backwater from major tributaries along the main stem or from localized debris- or ice-jams. Inundated areas shown should not be used for navigation, regulatory, permitting, or other legal purposes. Although USGS intends to make this server available 24 hours a day, 7 days a week, timely delivery of data and products from this server through the Internet is not guaranteed. The USGS provides these maps "as-is" for a quick reference, emergency planning tool but assumes no legal liability or responsibility resulting from the use of this information. If this series of flood inundation maps will be used in conjunction with National Weather Service (NWS) river forecasts, the user needs to be aware of additional uncertainties which may be inherent or factored into NWS forecast procedures. The NWS uses river forecast models to estimate the quantity and timing of water flowing through selected river reaches in the United States. These forecast models (1) estimate the amount of runoff generated by a precipitation event, (2) compute how the water will move downstream, and (3) predict the flow and stage (water-surface elevation) for the river at a given location (Advanced Hydrologic Predictions Service forecast point) throughout the forecast period (every 6 hours and 3 to 5 days out in many locations). For more information on AHPS forecasts, please see <http://water.weather.gov/ahps/pcpn_and_river_forecasting.pdf>.

  1. Who distributes the data set? (Distributor 1 of 1)

    U.S. Geological Survey
    Reston, Virginia

  2. What's the catalog number I need to order this data set?

  3. What legal disclaimers am I supposed to read?

    Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of this data, software, or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. The flood boundaries shown were estimated using water stages at the USGS streamgaging station 04288040, Winooski River above Crossett Brook at Waterbury, Vermont, steady-state hydraulic modeling (assuming unobstructed flow) and a digital elevation model. The hydraulic model reflects the land-cover characteristics and any bridge, dam, levee, or other hydraulic structures existing July 2013. Unique meteorological factors (timing and distribution of storm) could cause actual streamflows along the modeled reach to vary from those assumed during a flood, which may lead to deviations from the water-surface elevations and inundation boundaries shown here. Additional areas may be flooded owing to unanticipated backwater from major tributaries along the main stem or from localized debris- or ice-jams. Inundated areas shown should not be used for navigation, regulatory, permitting, or other legal purposes. Although USGS intends to make this server available 24 hours a day, 7 days a week, timely delivery of data and products from this server through the Internet is not guaranteed. The USGS provides these maps "as-is" for a quick reference, emergency planning tool but assumes no legal liability or responsibility resulting from the use of this information. If this series of flood inundation maps will be used in conjunction with National Weather Service (NWS) river forecasts, the user needs to be aware of additional uncertainties which may be inherent or factored into NWS forecast procedures. The NWS uses river forecast models to estimate the quantity and timing of water flowing through selected river reaches in the United States. These forecast models (1) estimate the amount of runoff generated by a precipitation event, (2) compute how the water will move downstream, and (3) predict the flow and stage (water-surface elevation) for the river at a given location (Advanced Hydrologic Predictions Service forecast point) throughout the forecast period (every 6 hours and 3 to 5 days out in many locations). For more information on AHPS forecasts, please see <http://water.weather.gov/ahps/pcpn_and_river_forecasting.pdf>.

  4. How can I download or order the data?


Who wrote the metadata?

Dates:
Last modified: 02-Jun-2015
Metadata author:
U.S. Geological Survey
Attn: Scott Olson

Metadata standard:
FGDC Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)


Generated by mp version 2.9.16 on Tue Jun 02 10:35:18 2015