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Calculations of the Total Number of Electrons in a Column of Unit Cross Section Extending from the Transmitter to the Receiver
Metadata from the NOAA Metadata Manager's Repository (NMMR)
- Identification_Information:
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- Citation:
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- Citation_Information:
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- Originator:DOD/USAF/GWC > Global Weather Center, U.S. Air Force, U.S. Department of Defense
- Originator:DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
- Publication_Date:1977
- Title:
- Calculations of the Total Number of Electrons in a Column of Unit Cross Section Extending from the Transmitter to the Receiver
- Edition:First
- Series_Information:
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- Series_Name:International Standard Serial Numbers (ISSN)
- Issue_Identification:'ISSN 0579-7144, Numerical Modeling of Polar Ionospheric Dynamics.'
- Publication_Information:
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- Publication_Place:Boulder, CO
- Publisher:National Geophysical Data Center
- Online_Linkage:http://www.ngdc.noaa.gov/stp
- Description:
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- Abstract:
Ionospheric Total Electron Content (TEC) is the total number of electrons in a column of unit cross section extending from
the transmitter to receiver. TEC is calculated from observations of the rotation of a polarized signal (Faraday rotations)
transmitted from the satellite. Most of the TEC data have had limited quality control work done and are considered "raw" data.
USAF Global Weather Central (GWC) has supplied data from January 1980 through May 1992. During this period, there have been
a many as twelve and as few as ten recording stations. The stations are Anchorage (61.2N,210.1E), Athens (38.0N,23.60E), Boulder(40.0N,254.7E),
Goose Bay (53.3N,299.2E), La Posta (32.8N,243.5E), Lunping (24.9N,121.2E), Osan (37.2N,127.1E), Palehua (20.7N,203.7E), Patrick
(28.2N,279.4E), Ramey (18.1N,293.8E), Sagamore Hill (42.6N,289.2E), and Shemya (52.7N,174.1E). There is a limited amount of
TEC data available from Sagamore Hill and Sydney (34.0S,150.7E) from 1967 - 1974. The data consist of hourly values, medians,
and median counts. Data are available on magnetic tape or IBM-compatible diskette. The smallest division of data that will
be pulled for a data request is a network month. Each month has from one to twelve stations for each network month. For GWC
data, there will be at least ten to twelve stations for each month.
- Purpose:
Ionospheric Research
- Supplemental_Information:
Observing station type: Solar-Terrestrial Observatory, Satellite. Number of sites: 12 observatories. Quality control: Accuracy
of data range from 2 percent to 30 percent,depending on the technique used for calculations and the validity of assumptions
for the particular observational condition.
- Time_Period_of_Content:
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- Time_Period_Information:
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- Range_of_Dates/Times:
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- Beginning_Date:19670901
- Ending_Date:Present
- Currentness_Reference:
Ground Condition
- Status:
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- Progress:In work
- Maintenance_and_Update_Frequency:Monthly
- Spatial_Domain:
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- Bounding_Coordinates:
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- West_Bounding_Coordinate:-180.000000
- East_Bounding_Coordinate:180.000000
- North_Bounding_Coordinate:90.000000
- South_Bounding_Coordinate:-90.000000
- Keywords:
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- Theme:
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- Theme_Keyword_Thesaurus:NASA/GCMD Earth Science Keywords
- Theme_Keyword:EARTH SCIENCE > Solar-terrestrial Interactions > Ionosphere/Magnetosphere Particles > Particle Density
- Theme_Keyword:EARTH SCIENCE > Solar-terrestrial Interactions > Ionosphere/Magnetosphere Particles > Total Electron Content
- Theme:
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- Theme_Keyword_Thesaurus:ISO 19115 Topic Category
- Theme_Keyword:geoscientificInformation
- Theme:
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- Theme_Keyword_Thesaurus:NASA/GCMD Data Center Keywords
- Theme_Keyword:WDC/STP, BOULDER > World Data Center for Solar-Terrestrial Physics, Boulder
- Theme_Keyword:DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
- Place:
-
- Place_Keyword_Thesaurus:NASA/GCMD Location Keywords
- Place_Keyword:Global
- Access_Constraints:No Constraints
- Point_of_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
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- Contact_Organization:DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
- Contact_Person:Rob Redmon
- Contact_Address:
-
- Address_Type:Mailing and Physical
- Address:
NOAA/NESDIS/NGDC 325 Broadway
- City:Boulder
- State_or_Province:CO
- Postal_Code:80305
- Country:USA
- Contact_Voice_Telephone:(303) 497-4331
- Contact_Facsimile_Telephone:(303) 497-6513
- Contact_Electronic_Mail_Address:ionosphere@noaa.gov
- Hours_of_Service:7:30 - 5:00 Mountain
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- Distribution_Information:
-
- Distributor:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization:DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
- Contact_Person:Rob Redmon
- Contact_Address:
-
- Address_Type:Mailing and Physical
- Address:
NOAA/NESDIS/NGDC 325 Broadway
- City:Boulder
- State_or_Province:CO
- Postal_Code:80305
- Country:USA
- Contact_Voice_Telephone:(303) 497-4331
- Contact_Facsimile_Telephone:(303) 497-6513
- Contact_Electronic_Mail_Address:ionosphere@noaa.gov
- Hours_of_Service:7:30 - 5:00 Mountain
- Resource_Description:TEC
- Distribution_Liability:
While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state
of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of
the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact
of distribution constitute such a warranty.
- Standard_Order_Process:
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- Digital_Form:
-
- Digital_Transfer_Information:
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- Format_Name:ASCII
- Transfer_Size:91.500000
- Digital_Transfer_Option:
-
- Offline_Option:
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- Offline_Media:Cartridge Tape
- Recording_Format:Tar
- Fees:Depends on the Data Set
- Ordering_Instructions:
Contact Data Center
- Custom_Order_Process:
Contact data center for information
- Technical_Prerequisites:
- Contact data center for information
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- Metadata_Reference_Information:
-
- Metadata_Date:20101022
- Metadata_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization:DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
- Contact_Person:Rob Redmon
- Contact_Address:
-
- Address_Type:Mailing and Physical
- Address:
NOAA/NESDIS/NGDC 325 Broadway
- City:Boulder
- State_or_Province:CO
- Postal_Code:80305
- Country:USA
- Contact_Voice_Telephone:(303) 497-4331
- Contact_Facsimile_Telephone:(303) 497-6513
- Contact_Electronic_Mail_Address:ionosphere@noaa.gov
- Hours_of_Service:7:30 - 5:00 Mountain
- Metadata_Standard_Name:Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata
- Metadata_Standard_Version:FGDC-STD-012-2002
- Metadata_Extensions:
-
- Online_Linkage:http://www.ngdc.noaa.gov/metadata/extensions/local_extensions.html
- Profile_Name:NGDC Extensions to FGDC Metadata
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Metadata stylesheets are provided courtesy of ESRI. Copyright (c) 2000-2002, Environmental Systems Research Institute, Inc.
All rights reserved.
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