Magnetic anomaly data of the former U.S.S.R

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Frequently-anticipated questions:

What does this data set describe?

Title: Magnetic anomaly data of the former U.S.S.R
Abstract:
Magnetic anomaly data of the former U.S.S.R., clipped to the NE Asia study area
Supplemental_Information:
In 1974, the Ministry of Geology of the U.S.S.R. published a mosaic series of 18 sheets at 1:2.5 million scale showing the residual magnetic intensity over the land mass of the U.S.S.R These sheets were digitized by U.S. Naval Oceanographic Office and the digital data provided to the National Geophysical Data Center for archival and public dissemination.

Errors were identified in the original one-arc-minute digital data. These errors were removed by reprocessing of the digitized contour data by Conoco Inc., who returned these corrections to NGDC as 18 latitude/longitude contour level files and a 2.5 km and 5.0 km easting/northing/anomaly grid. NGDC converted these data to a latitude/longitude projection, and regridded to a 3 minute grid.

  1. How should this data set be cited?

    National Oceanic and Atmospheric Administration, U.S. Naval Oceanographic Office, and National Geophysical Data Center, REQUIRED: The date when the data set is published or otherwise made available for release., Magnetic anomaly data of the former U.S.S.R.

    Online Links:

    • \\MILLER-PC\G$\NEAsia_gis\raster_data\aeromag.tif

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -180.000000
    East_Bounding_Coordinate: 180.000000
    North_Bounding_Coordinate: 84.195315
    South_Bounding_Coordinate: 23.057040

  3. What does it look like?

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

    Calendar_Date: REQUIRED: The year (and optionally month, or month and day) for which the data set corresponds to the ground.
    Currentness_Reference:
    REQUIRED: The basis on which the time period of content information is determined.

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

    Geospatial_Data_Presentation_Form: remote-sensing image

  6. How does the data set represent geographic features?

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

      This is a Raster data set. It contains the following raster data types:

      • Dimensions 2866 x 3293 x 1, type Pixel

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

      The map projection used is Lambert Azimuthal Equal Area.

      Projection parameters:
      Longitude_of_Projection_Center: 110.000000
      Latitude_of_Projection_Center: 60.000000
      False_Easting: 0.000000
      False_Northing: 0.000000

      Planar coordinates are encoded using row and column
      Abscissae (x-coordinates) are specified to the nearest 1999.949730
      Ordinates (y-coordinates) are specified to the nearest 1999.949730
      Planar coordinates are specified in meters

      The horizontal datum used is D_Clarke_1866.
      The ellipsoid used is Clarke 1866.
      The semi-major axis of the ellipsoid used is 6378206.400000.
      The flattening of the ellipsoid used is 1/294.978698.

  7. How does the data set describe geographic features?

    Band_1

    ObjectID
    Internal feature number. (Source: ESRI)

    Sequential unique whole numbers that are automatically generated.

    Value

    Count

    Band_2

    ObjectID
    Internal feature number. (Source: ESRI)

    Sequential unique whole numbers that are automatically generated.

    Value

    Count

    Band_3

    ObjectID
    Internal feature number. (Source: ESRI)

    Sequential unique whole numbers that are automatically generated.

    Value

    Count

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?

Provides regional magnetic anomaly data for the northern part of the study area.

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

  1. Who distributes the data set?[Distributor contact information not provided.]

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

    Downloadable Data

  3. What legal disclaimers am I supposed to read?

  4. How can I download or order the data?

Who wrote the metadata?

Dates:
Last modified: 07-Apr-2006
Metadata author:
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c/o REQUIRED: The person responsible for the metadata information.
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Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)
Metadata extensions used:

Generated by mp version 2.8.6 on Fri Apr 07 14:04:37 2006