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Coal Geology, Land Use, and Human Health in the Peoples Republic of China: Power line locations

Frequently-anticipated questions:

• What does this data set describe?
  1. How should this data set be cited?
  2. What geographic area does the data set cover?
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
  5. What is the general form of this data set?
  6. How does the data set represent geographic features?
  7. How does the data set describe geographic features?
• Who produced the data set?
  1. Who are the originators of the data set?
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
• Why was the data set created?
• 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?
  1. How well have the observations been checked?
  2. How accurate are the geographic locations?
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
  5. How consistent are the relationships among the data, including topology?
• How can someone get a copy of the data set?
  1. Are there legal restrictions on access or use of the data?
  2. Who distributes the data?
  3. What's the catalog number I need to order this data set?
  4. What legal disclaimers am I supposed to read?
  5. How can I download or order the data?
• Who wrote the metadata?

What does this data set describe?

1. How should this data set be cited?

   Alex W. Karlsen (comp.), Adam C. Schultz (comp.), Peter D. Warwick (comp.), Steven M. Podwysocki (comp.), and Vivian S. Lovern (comp.), 2001, Coal Geology, Land Use, and Human Health in the Peoples Republic of China: Power line locations: U.S. Geological Survey Open-File Report 01-318, U.S. Geological Survey Eastern Energy Resources Team, Reston, VA.

2. What geographic area does the data set cover?

   West_Bounding_Coordinate: 98.1689

   East_Bounding_Coordinate: 131.748

   North_Bounding_Coordinate: 21.1354

   South_Bounding_Coordinate: 49.0443

3. What does it look like?

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

   Calendar_Date: 15-Aug-2001

   Currentness_Reference: Publication Date

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

   Geospatial_Data_Presentation_Form: map

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?

      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.001. Longitudes are given to the nearest 0.001. Latitude and longitude values are specified in Decimal degrees.

7. How does the data set describe geographic features?

   power_line.dbf

   Polyline attribute table of powerline networks in the People's Republic of Chna

   Type

   Type of powerline (power handling capacity) (text) (Source: Electric Power Industry in China, 1998)

   Value	Definition
   200 kV AC line
   220 kV AC line
   330 kV AC line
   500 kV AC line
   Planned 220 kV
   Planned ±500 kV
   ±500 kV AC line

Who produced the data set?

1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
   • Alex W. Karlsen (comp.)
   • Adam C. Schultz (comp.)
   • Peter D. Warwick (comp.)
   • Steven M. Podwysocki (comp.)
   • Vivian S. Lovern (comp.)

2. Who also contributed to the data set?

3. To whom should users address questions about the data?
   Energy Resources Team, U.S Geological Survey
   Energy Resources Team, MS 956
   12201 Sunrise Valley Dr.
   Reston, VA 20192
   USA
   

   703-648-6401 (voice)
   

Why was the data set created?

The purpose of this dataset is to give geologists and other scientists a spatial database of the electrical power line network in China. This data set will be utilized in energy research and cartographic projects.

How was the data set created?

1. From what previous works were the data drawn?

   EPIC map (source 1 of 1)

   China Electric Power Information Center (ed.), Unknown, Electric Power Industry in China: Epoch Printing Co., Ltd, People's Republic of China.

   Type_of_Source_Media: paper

   Source_Scale_Denominator: 5000000 (approximate)

   Source_Contribution:

   The paper map provided location and capacity of powerline networks in the People's Republic of China.

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

   Date: 1999 (process 1 of 1)

   The locations of powerlines in the People's Republic were hand-digitized from 1:5000000 maps in the atlas "Electric Power Industry in China."

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?

   Line data was captured by hand digitizing from an 5000000 paper map. Line data attributes are based on the published thematic map.

2. How accurate are the geographic locations?

   The original paper version of powerline networks is at 5000000; resolution is limited and it is not intended to be used at a more detailed scale.

3. How accurate are the heights or depths?

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

   This data set is a complete coverage of powerlines based on information present on the original 5000000 thematic map.

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

   The dataset is a line coverage. Each line has a class attribute classifying powerline type.

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: None

1. Who distributes the data set? (Distributor 1 of 1)
   Energy Resources Team, U.S. Geological Survey
   Energy Resources Team, MS 956
   U.S Geological Survey
   12201 Sunrise Valley Drive
   Reston, VA 20192
   USA
   

   703-648-6401 (voice)
   

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

   USGS Open-File Report 01-318

3. What legal disclaimers am I supposed to read?

   This report is preliminary and has not been reviewed for conformity with U.S. Geoloical Survey editorial standards. Any use of trade, product, or firm names is for the descriptive purposes only and does not imply endorsement by the U.S. Government.

4. How can I download or order the data?
   • Availability in digital form:

     Data format:	ArcView Shapefile (version 1.0)
     Network links:	<http://energy.er.usgs.gov/>

   • Cost to order the data: none

Who wrote the metadata?

Dates:

Last modified: 16-Aug-2001

Metadata author:

Energy Resources Team, U.S. Geological Survey
Energy Resources Team, MS 956
U.S. Geological Survey
12201 Sunrise Valley Drive
Reston, VA 20192
USA

703-648-6401 (voice)

Metadata standard:

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