| startDate: | 2011-03-02 10:00 |
| created: | 2011-03-02 10:29 |
| tecUnits: | TECU (10^16 electrons/m^2) x 10 |
| latLonUnits: | degrees x 10 |
| source: | Kalman filter data assimilation model using ground-based GPS data from CORS, RTIGS, GPS/MET |
| _FillValue: | 0 |
| eorIdentifier: | 999 |
| timeRange: | 2011 Feb 03 2200 - 2215 UTC |
| cadence: | 15 minutes |
| endDate: | 2011-03-02 10:15 |
| url: | http://www.swpc.noaa.gov/ustec/, http://www.ngdc.noaa.gov/stp/IONO/USTEC/ |
| numStations: | 79 |
| Satellites_Used: | 32,22,12,31,11,21,09,19,18,27,06,25,15,24,14,03 |
| CONUS_MAX_LAT: | 50.1 |
| CONUS_MIN_LAT: | 24.4 |
| CONUS_MAX_LON: | -124.6 |
| CONUS_MIN_LON: | -64.9 |
| Conventions: | CF-1.4 |
| Metadata_Conventions: | FGDC, Unidata Dataset Discovery v1.0 |
| metadata_url: | http://ngdc.noaa.gov/nmmrview/fgdc.jsp?id=gov.noaa.ngdc:G10009 |
| id: | gov.noaa.ngdc:G10009 |
| title: | US-Total Electron Content Product (USTEC) |
| summary: | The US Total Electron Content (US-TEC) product is designed to specify TEC over the Continental US (CONUS) in near real-time. The product uses a Kalman Filter data assimilation model, described in the Technical Documentation. This technique is driven by data from ground-based Global Positioning System (GPS) dual frequency receivers. The primary data stream comes from the Maritime and Nationwide Differential GPS (M/NDGPS) real time network of stations operated by the US Coast Guard (USCG). As of January 2006, there were about 130 stations ingested into the model. This number has been gradually increasing and will be augmented by Federal Aviation Administration/Wide Area Augmentation System (FAA/WAAS) data, and new stations in areas with poor coverage. This product has evolved through a collaboration between the Space Weather Prediction Center (SWPC), the National Geodetic Survey (NGS), the National Geophysical Data Center (NGDC), and the Global Systems Division (GSD). |
| keywords: | Earth Science > Sun-Earth Interactions > Ionosphere/Magnetosphere Particles, Earth Science > Sun-Earth Interactions > Solar Energetic Particle Properties > Total Electron Content, geoscientificInformation |
| keywords_vocabulary: | NASA/GCMD Earth Science Keywords, ISO 19115 Topic Categories |
| comment: | http://www.swpc.noaa.gov/ustec/docs/USTEC_Doc.html |
| creator_name: | Rob Redmon |
| creator_email: | ionosphere@noaa.gov |
| institution: | DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce |
| project: | The TEC and slant path maps can be used to estimate the GPS signal delay due to the ionospheric electron content between a receiver and a GPS satellite |
| license: | ACCESS CONSTRAINTS: none, USE CONSTRAINTS: none, DISTRIBUTION LIABILITY: None |
| publisher_name: | DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce, Rob Redmon |
| publisher_url: | http://www.swpc.noaa.gov/ustec/text/, http://www.ngdc.noaa.gov/stp/IONO/USTEC/, http://www.ngdc.noaa.gov/stp/IONO/USTEC/products/, http://www.swpc.noaa.gov/ustec/all_tec_plots.html |
| publisher_email: | ionosphere@noaa.gov |
| metadata_contact: | Rob Redmon, DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce |
| update_frequency: | Daily |
| progress: | In work |
| instrument: | GPS |
| date_created: | 20060401 |
| date_issued: | 20060401 |
| geospatial_lat_min: | 10 |
| geospatial_lat_max: | 60 |
| geospatial_lon_min: | -50 |
| geospatial_lon_max: | -150 |
| time_coverage_start: | 20041014 |
| time_coverage_end: | Present |
| verticalTEC_Count: | 5151.0 |
| verticalTEC_Minimum: | 8.0 |
| verticalTEC_Maximum: | 52.70000076293945 |
| verticalTEC_Mean: | 17.332149099595643 |
| verticalTEC_Standard_Deviation: | 7.674331639193234 |
| verticalTEC_Sum: | 89277.9000120163 |
| verticalTEC_Sum_of_Squares: | 1850689.009765017 |
| Unlimited_Dimension: | Time |
| Latitude: | Array of 64 bit Reals [Latitude = 0..50] long_name: Latitude units: degrees_north valid_min: 10.00000000000000 valid_max: 60.00000000000000 |
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| Longitude: | Array of 64 bit Reals [Longitude = 0..100] long_name: Longitude units: degrees_east valid_min: -50.00000000000000 valid_max: -150.0000000000000 |
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| Time: | Array of 32 bit Integers [Time = 0..0] units: minutes since 1970-01-01 00:00:00 UTC standard_name: time |
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| verticalTEC: | Grid long_name: Observations made from Vertical Total Electron Content
|