gov.noaa.ngdc.stp.ionosphere:G00145 eng; USA utf8 dataset Redmon, Robert DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce 303-497-4331 325 Broadway Boulder CO 80305-3328 USA ionosonde@noaa.gov 7:30-5:00 Mountain pointOfContact 2015-09-18 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Measurement of Incoherent Scatter 1975-01-01 publication First NOAA National Centers for Environmental Information publisher DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce publisher DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce originator https://www.ngdc.noaa.gov/stp/iono http Ionosphere Program at NCEI The Ionospheric Physics Group of NCEI operates the Ionosphere portion of the World Data Center for Solar-Terrestrial Physics, Boulder, which seeks out and archives data, data products, and information related to the Ionosphere. information For radio waves transmitted through the ionosphere with frequencies much larger (50 to 1300MHz) than the plasma frequency (up to 15MHz), very small-scale fluctuations of electron density will scatter a portion of the signal back toward the transmitter. These fluctuations are caused by the random thermal motions of the electrons. The height at which the scattering occurs can be determined by either a pulse technique or by the use of two intersecting cylindrical radar beams. The height resolutions of a backscattered pulse or beam can vary from 4 to 35 km at a height of 100 km to about 300 km at altitudes above 1000 km, depending on the equipment used and the geographical location of the station. From analysis of the backscattered signals, electron density profiles, electron and ion temperature profiles, and ion composition and ionospheric drift can be determined. The equipment used for the observations determines the vertical extent of the backscattered profiles and the resolution, as well as influencing the procedures used to convert the scattered return to measures of meaningful ionospheric parameters. Radar installations that can make these observations are complex and expensive to operate; consequently, these observations are scheduled on an "as needed" basis, and the equipment is shared for other uses. Although the NOAA National Centers for Environmental Information (formerly National Geophysical Data Center) has several data tapes, each one is an independent experiment with its own parameters and data format. The National Center for Atmospheric Research (NCAR) now archives these data. Their collection includes the NCEI data and newer Incoherent Scatter data that they receive. NCAR has done significant development work on these data sets. They have created a common archive data format and converted all data to this new format. For additional details about this data set, contact one of the people at the address listed below. NCAR HAO, P.O. Box 3000, Boulder, CO 80307-3000, USA. FAX: 303-497-1589. Barbara Emery: 303-497-1596, emery@ncar.ucar.edu. Roy Barnes: 303-497-1230; bozo@ncar.ucar.edu. Radio Signal Research completed Redmon, Robert DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce 303-497-4331 325 Broadway Boulder CO 80305-3328 USA ionosonde@noaa.gov 7:30-5:00 Mountain pointOfContact notPlanned EARTH SCIENCE > Solar-terrestrial Interactions > Ionosphere/Magnetosphere Particles > Particle Density theme NASA/GCMD Earth Science Keywords ICSU-WDS > International Council for Science - World Data System project Global Change Master Directory (GCMD) Project Keywords 2020-01-09 publication 9.1 NASA Goddard Space Flight Center, Earth Science Data and Information System https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information custodian Global place NASA/GCMD Location Keywords DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2020-01-09 publication 9.1 NASA Goddard Space Flight Center, Earth Science Data and Information System https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information custodian 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. otherRestrictions Use Constraints: None otherRestrictions Access Constraints: No Constraints eng; USA geoscientificInformation -180.000000 180.000000 -90.000000 90.000000 1965-11-15 1977-12-15 Observing station type: Solar-Terrestrial Observatory. Data collection type: Network.Quality control: The incoherent scatter data consist of the following data sets: Arecibo I9/I29, N12, N34(Raw), N35(Raw), and N35(reduced); Jicamarca: November 1966-April 1969; Millstone Hill: 1970 and 1971; Saint Santin: November 1965-November 1967, February 1971-May 1975, and January 1976-December 1977. ASCII Redmon, Robert DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce 303-497-4331 325 Broadway Boulder CO 80305-3328 USA ionosonde@noaa.gov 7:30-5:00 Mountain pointOfContact No cost Ordering Instructions: Download data via the ftp site Custom Order Process: Contact data center for information 161.200000 ftp://ftp.ngdc.noaa.gov/ionosonde ftp Index of STP/Ionosphere ftp characteristics of Ionospheric data download ftp://ftp.ngdc.noaa.gov/STP/IONOSPHERE/ CARTRIDGE TAPE tar repository NOAA National Centers for Environmental Information NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015. 2015-04-22T00:00:00 annually This metadata was automatically generated from the Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata standard (version FGDC-STD-012-2002) using the 2012-08-08 version of the FGDC RSE to ISO 19115-2 transform. Translated from FGDC 2012-10-10T11:10:05.391-06:00 This record was automatically modified on 2015-09-18 to include references to NCEI where applicable. NOAA National Centers for Environmental Information Metadata Specialist editor Redmon, Robert DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce 303-497-4331 325 Broadway Boulder CO 80305-3328 USA ionosonde@noaa.gov 7:30-5:00 Mountain pointOfContact