Frequently-asked questions:

What does this data set describe?


Polygon layer (builts) 1:1000000 scale. created from data VMap0

Supplemental information:
This layer has not been checked, updated and attributes have not been changed. Reflects situation in the 1990s.

  1. How should this data set be cited?

    NGA (National Geospatial-Intelligence Agency), VMap0, Eugene Egidarev, 2000, pop-built-up-a: http://geoengine.nga.mil.

    Online links:
  2. What geographic area does the data set cover?

    Bounding coordinates:
    West: 99.801170
    East: 145.867249
    North: 59.369946
    South: 36.682056

  3. What does it look like?

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

    Beginning date: 30.01.2000
    Beginning time: unknown
    Ending date: 01.04.2008
    Currentness reference:
    publication date

  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):
      • G-polygon (1342)

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

      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.000000. Longitudes are given to the nearest 0.000000. Latitude and longitude values are specified in Decimal degrees.

      The horizontal datum used is D_WGS_1984.
      The ellipsoid used is WGS_1984.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257224.

  7. How does the data set describe geographic features?

    locations of built area
    Data VMap0

    Internal feature number.

    Sequential unique whole numbers that are automatically generated.

    FACC Feature Code

    Value Definition
    Built-Up Area

    Feature geometry.

    Coordinates defining the features.

    special field

    Special field

    Value Definition
    Special field

    description of "f_code" field
    from "f_code" field

    Name from original Vmap

    Value Definition
    No entry present

    description of "nam" field
    from "nam" field


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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?

    Eugene Egidarev, Eugene Simonov
    WWF , Amur Branch
    Russia Vladivostok
    18a, Verkhneportovaya St.
    Vladivostok, Primorskii krai 690003

    +7 9242311633 (voice)
    +7 4232 414863 (FAX)
    eugene simonov <esimonovster@gmail.com>
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Why was the data set created?

To show  built-up areas territory in Amur River basin on topomaps. supplements settlements point layer.

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How was the data set created?

  1. Where did the data come from?

    (source 1 of 1)

    NGA (National Geospatial-Intelligence Agency), 09 2000, Railroads (VMap0).

    Online links:
    Type of source media: Downloaded DATA Vmap0 http://geoengine.nga.mil
    Source scale denominator: 1:1000000
    Source contribution:
    Topomaps ONC (Operational Navigation Chart) Scale 1:1000000

  2. What changes have been made?

    Date: 2006 (change 1 of 1)
    Clip and merge data on amur region from all source(VMap0)

    Person responsible for change:
    Eugene Egidarev

    Data sources used in this process:
    • trans-road-l

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

  1. How well have the observations been checked?

    Geographic names have not been corrected and updated

  2. How accurate are the geographic locations?

    Горизонтальная (плановая) точность: 2040 м (доверительный интервал 90%)

  3. How accurate are the heights or depths?

    Вертикальная точность: 152.4 м (доверительный интервал 90%)

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

    Reasonably well presents situation in Russia and Mongolia, but lacks large number of built-up areas in china that emerged after the mid 1990s.

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

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How can someone get a copy of the data set?

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

Access constraints: Data VMap0 free, layer updated- permission WWF Amur Branch
Use constraints:
Free, when using reference to authors required.

Distributor 1 of 1

  1. Who distributes the data set?

    WWF Amur Branch
    18a, Verkhneportovaya St.
    Vladivostok, Primorskii krai 690003

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

    Downloadable Data is free http://geoengine.nga.mil

  3. What legal disclaimers am I supposed to read?

    Data VMap0 free, layer updated- permission WWF Russia, Amur Branch

  4. How can I download or order the data?

    • Availability in digital form:

    • Data format:
      Size: 0.430

  5. Is there some other way to get the data?

  6. What hardware or software do I need in order to use the data set?

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Who wrote the metadata?

Last modified: 20080311

Metadata author:
Egidarev Eugene
WWF Russia, Amur Branch
Russia, Vladivostok
18a Verkhneportovaya str
Vladivostok, Primorskii krai 690003

+79242311633 (voice)

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

Metadata extensions used:
  • http://www.esri.com/metadata/esriprof80.html

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