Version:2.5.0
NumericalData
ResourceID
spase://IUGONET/NumericalData/ISEE/Riometer/ITK/PT1S_cna_cdf
ResourceHeader
ResourceName
CDF data of cosmic noise absorption measured with the 30MHz broadbeam riometer at Istok (near Norilisk), Russia.
ReleaseDate
2017-06-01 00:00:00
Description
Cosmic Noise Absorption (CNA) measured at 1-sec intervals with the 30MHz broadbeam riometer at Istok (near Norilisk), Russia. The data are distributed in the Common Data Format (CDF).
Acknowledgement
Riometer Data. PI: Kazuo Shiokawa and Shinichiro Oyama, Institute for Space-Earth Environmental Research, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8601, Japan. Rules of the Road for OMTI ASI Data Use: 1. Please contact the Principal Investigator (PI), K. Shiokawa (shiokawa at isee.nagoya-u.ac.jp) or S. Oyama, ISEE, Nagoya University before using the data at any publications and/or presentations. 2. Please cite Shiokawa et al. (1999) and/or Shiokawa et al. (2009) in the publication. The detailed citation is: * Shiokawa et al., Earth Planets Space, 51, p.887-896, 1999. * Shiokawa et al., Earth Planets Space, 61, p.479-491, 2009. For more information, see http://stdb2.isee.nagoya-u.ac.jp/omti/
Contacts
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Format
CDF
InstrumentIDs
MeasurementType
Waves
TemporalDescription
TimeSpan
StartDate
2017-06-01 00:00:00
RelativeStopDate
P1D
ObservedRegion
Earth.NearSurface.Ionosphere.ERegion
ObservedRegion
Earth.NearSurface.Ionosphere.DRegion
SpatialCoverage
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
WGS84
CenterLatitude
70.03
NorthernmostLatitude
70.53
SouthernmostLatitude
69.53
CenterLongitude
88.01
EasternmostLongitude
88.51
WesternmostLongitude
87.51
Keywords
EARTH SCIENCE Sun-earch Interaction Ionosphere/Magnetosphere Dynamics Aurorae
Parameter #1
Name
Epoch for the cna data
ParameterKey
epoch_1sec
Description
time label in CDF_EPOCH (the number of milliseconds since 01-Jan-0000) for the cna data. All time values are in the universal time.
Units
millisecond
Support
Parameter #2
Name
Cosmic Noise Absorption (CNA)
ParameterKey
cna
Description
CNA values at 30 MHz measured with 8x8-element Imaging Riometer.
Cadence
PT1S
Units
decibel (dB)
Structure
Wave
WaveType
Electromagnetic
WaveQuantity
Absorption
FrequencyRange
Low
29.9
High
30.1
Units
MHz
Parameter #3
Name
Quiet-Day Curve (QDC)
ParameterKey
qdc
Description
QDC values derived at 1-min resolution for the 8x8-element Imaging Riometer.
Cadence
PT1M
Units
decibel (dB)
Structure
Wave
WaveType
Electromagnetic
WaveQuantity
Absorption
FrequencyRange
Low
29.9
High
30.1
Units
MHz
Parameter #4
Name
Azimuth angle of each antenna beam
ParameterKey
azimuth_angle
Units
degree
Structure
Support
Parameter #5
Name
Zenith angle of each antenna beam
ParameterKey
zenith_angle
Units
degree
Structure
Support
Parameter #6
Name
Geographic latitude of each antenna beam center at D-region altitude
ParameterKey
glat_beam
Units
degree
Structure
Support
Parameter #7
Name
Geographic longitude of each antenna beam center at D-region altitude
ParameterKey
glon_beam
Units
degree
Structure
Support