Surficial-geologic map of the Kavik River area, west-central Mount Michelson Quadrangle, northeastern Brooks Range, Alaska

Metadata also available as - [Parseable text] - [XML]

Frequently-anticipated questions:


What does this data set describe?

Title:
Surficial-geologic map of the Kavik River area, west-central Mount Michelson Quadrangle, northeastern Brooks Range, Alaska
Abstract:
This dataset is comprised of a vector topographic and hydrologic base map illustrating the Kavik River map area, including the Mount Michelson C-5 and B-5 Quadrangles and portions of the Mount Michelson C-4 and B-4 Quadrangles. The geospatial data in this dataset were vectorized from scanned raster topographic maps published by the U.S. Geological Survey.
Supplemental_Information:
The metadata for the vector topographic base maps (Mount Michelson C-5 and B-5 as well as the C-4 and B-4 on the west side of the Canning River) are addressed as a collective work.The layers listed below are present as ArcGIS shapefiles.Attribute information for the following layers is included in this metadata file under the "Entity _and_Attribute_Information" section.Each layer is listed and described in detail under its own heading starting "Entity_Type_Label."Layers include:
contours		topographic contours
hydro_lines		hydrology lines
hydro_polygons		hydrology polygons
sec_grid_clip		section grid clipped to the shape of the map area
kavik_outline		outline of the Kavik River map area
pt_elevations		elevation points
  1. How should this data set be cited?

    Loveland, A.M., Design Presentation Associates, 2009, Surficial-geologic map of the Kavik River area, west-central Mount Michelson Quadrangle, northeastern Brooks Range, Alaska: Report of Investigation RI 2009-3, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska.

    Online Links:

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -147.00000
    East_Bounding_Coordinate: -146.00000
    North_Bounding_Coordinate: 69.75000
    South_Bounding_Coordinate: 69.25000

  3. What does it look like?

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

    Calendar_Date: 2006
    Currentness_Reference: ground condition

  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?

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

      Grid_Coordinate_System_Name: Universal Transverse Mercator
      Universal_Transverse_Mercator:
      UTM_Zone_Number: 6
      Transverse_Mercator:
      Scale_Factor_at_Central_Meridian: 0.99960
      Longitude_of_Central_Meridian: -147.0
      Latitude_of_Projection_Origin: 0.00001
      False_Easting: 500000.0
      False_Northing: 0.1

      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 0.00001
      Ordinates (y-coordinates) are specified to the nearest 0.00001
      Planar coordinates are specified in meters

      The horizontal datum used is North American Datum of 1927.
      The ellipsoid used is Clarke 1866.
      The semi-major axis of the ellipsoid used is 6378137.
      The flattening of the ellipsoid used is 1/298.25722210088.

  7. How does the data set describe geographic features?

    sec_grid_clip.shp
    section grid clipped to the shape of the map area (Source: US Geological Survey and Alaska Department of Natural Resources, Land Records Information Section)

    Section
    section number (Source: U.S. Geological Survey)

    Range of values
    Minimum:1
    Maximum:36
    Units:section

    kavik_outline.shp
    outline of the Kavik River map area, polygon feature (Source: Alaska Division of Geological & Geophysical Surveys)

    contours.shp
    topographic contours (Source: U.S. Geological Survey)

    line_wt
    line weight, defines symbology (Source: U.S. Geological Survey)

    ValueDefinition
    bbold; defines index contour symbology
    boldbold; defines line weight symbology

    Elevation
    elevation in feet (Source: U.S. Geological Survey)

    Range of values
    Minimum:650
    Maximum:5000
    Units:feet

    pt_elevations.shp
    elevation points (Source: U.S. Geological Survey)

    Elevation
    elevation at a point (Source: U.S. Geological Survey)

    Range of values
    Minimum:235
    Maximum:4290
    Units:feet
    Resolution:0.00001

    benchmark
    benchmark name (Source: U.S. Geological Survey)

    ValueDefinition
    BuryBury benchmark
    FinFin benchmark
    BeliBeli benchmark
    TonTon benchmark
    IgnekIgnek benchmark
    CopCop benchmark

    hydro_lines.shp
    hydrology line features (Source: U.S. Geological Survey)

    hydro_polygons.shp
    hydrology polygon features (Source: U.S. Geological Survey)

    poly_type
    polygon type; defines symbology (Source: U.S. Geological Survey)

    ValueDefinition
    sandsand
    pondpond
    swampswamp


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?

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


Why was the data set created?

This dataset was created to serve as a base map for the Kavik River STATEMAP project which includes surficial and bedrock geology.


How was the data set created?

  1. From what previous works were the data drawn?

    USGS, Mount Michelson (B-4) (source 1 of 4)
    USGS, 1971, Mount Michelson (B-4), Alaska: U.S. Geological Survey, Reston, VA, USA.

    Other_Citation_Details: 1 sheet; scale 1:63,360
    Type_of_Source_Media: paper
    Source_Scale_Denominator: 63360
    Source_Contribution: topographic base map

    USGS, Mount Michelson (B-5) (source 2 of 4)
    USGS, 1971, Mount Michelson (B-5), Alaska: U.S. Geological Survey, Reston, VA, USA.

    Other_Citation_Details: 1 sheet; scale 1:63360
    Type_of_Source_Media: paper
    Source_Scale_Denominator: 63360
    Source_Contribution: topographic base map

    USGS, Mount Michelson (C-4) (source 3 of 4)
    USGS, 1971, Mount Michelson (C-4), Alaska: U.S. Geological Survey, Reston, VA, USA.

    Other_Citation_Details: 1 sheet; scale 1:63360
    Type_of_Source_Media: paper
    Source_Scale_Denominator: 63360
    Source_Contribution: topographic base map

    USGS, Mount Michelson (C-5) (source 4 of 4)
    USGS, 1971, Mount Michelson (C-5), Alaska: U.S. Geological Survey, Reston, VA, USA.

    Other_Citation_Details: 1 sheet; scale 1:63360
    Type_of_Source_Media: paper
    Source_Scale_Denominator: 63360
    Source_Contribution: topographic base map

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

    Date: 2006 (process 1 of 2)
    A software program titled All Topo was used to stitch together multiple scanned US Geological Survey, 1:63,360 scale, topographic maps into a single raster image of the mapping area.The resulting TIFF image was then georeferenced and vectorized by Design Presentation Associates and the Alaska Division of Geological & Geophysical Surveys. A geodatabase for both the topography and hydrology was created and entities were attributed using ArcGIS 9.0.

    Data sources used in this process:

    • USGS, Mount Michelson (B-4)
    • USGS, Mount Michelson (B-5)
    • USGS, Mount Michelson (C-4)
    • USGS, Mount Michelson (C-5)

    Date: 2006 (process 2 of 2)
    Township and range grids were acquired from the Alaska Department of Natural Resources, Land Records Information Section. The grids were clipped to exactly overlay the map extent.

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


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

  1. How well have the observations been checked?

    Attribute accuracy was visually verified via visual spot check comparison of the resultant digital files against the paper originals.

  2. How accurate are the geographic locations?

    The magnitude of horizontal error associated with digitization of the raster linework is unknown but is thought to be ~60 ft. This distance is essentially the ground width of two pixels within the digitized image.

  3. How accurate are the heights or depths?

  4. Where are the gaps in the data? What is missing?

    This dataset includes geospatial data that contain information about the topography and hydrology of the Mount Michelson C-5 and B-5 and portions of the C-4 and C-5 1:63,360 quadrangle maps as illustrated by the U.S. Geological Survey.

  5. How consistent are the relationships among the observations, including topology?

    Topology is present on appropriate line and polygon data sets.


How can someone get a copy of the data set?

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

Access_Constraints:
This report, map, and/or data set are available directly from the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys
Use_Constraints:
Any hardcopies or published data sets utilizing these data sets shall clearly indicate their source.If the user has modified the data in any way, the user is obligated to describe the types of modifications the user has made.User specifically agrees not to misrepresent these data sets, nor to imply that changes made by the user were approved by the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys.

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

    Alaska Division of Geological & Geophysical Surveys
    3354 College Road
    Fairbanks, Alaska 99709
    USA

    (907) 451-5020 (voice)
    (907) 451-5050 (FAX)
    dggspubs@alaska.gov

    Hours_of_Service: 8 am to 4:30 pm, Monday through Friday, except State holidays
    Contact_Instructions:
    Please view our web site (<http://www.dggs.dnr.state.ak.us>) for the latest information on available data. Please contact us using the e-mail address provided above when possible.
  2. What's the catalog number I need to order this data set?

  3. What legal disclaimers am I supposed to read?

    The State of Alaska makes no express or implied warranties (including warranties of merchantability and fitness) with respect to the character, function, or capabilities of the electronic services or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products, any failure thereof, or otherwise, and in no event will the State of Alaska's liability to the requester or anyone else exceed the fee paid for the electronic service or product.

  4. How can I download or order the data?


Who wrote the metadata?

Dates:
Last modified: 26-Mar-2009
Metadata author:
Alaska Division of Geological & Geophysical Surveys
3354 College Road
Fairbanks, Alaska 99709
USA

(907) 451-5020 (voice)
(907) 451-5050 (FAX)
dggspubs@alaska.gov

Hours_of_Service: 8 am to 4:30 pm, Monday through Friday, except State holidays.
Contact_Instructions:
Please contact us through the e-mail address above whenever possible.
Metadata standard:
FGDC Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)


Generated by mp version 2.9.6 on Tue May 5 12:46:03 2009