Brisbane Ionogram
SPASE version 2.2.3
Numerical Data Preduct: Australian Space Weather Forecasting Centre Brisbane Ionogram
- Resource ID
- spase://ASWS/NumericalData/Ionogram/Bri_Ionogram
- Name
- Australian Space Weather Forecasting Centre Brisbane Ionogram
- Alternate name
- Bribie Island
- Description
-
Ionograms are an image of frequency versus time delay (virtual height) of HF echoes from the ionosphere recorded by an ionosonde. An ionosonde is a swept frequency HF pulsed radar used to monitor the ionosphere. The WDC has archived ionogram data from 30 stations, 12 of them are still active at present. An IPS 5D ionosonde has been sounding since 29/03/1998 until 05/04/2022. An IPS 5F ionosonde has been sounding since 06/04/2022. The 5D/5F vertical sounding ionosondes normally sweep in frequency from about 1 to 21.5 MHz. Frequency step resolution for the 5D/5F is 5kHz, with up to 4095 steps available. The step interval is variable, becoming more coarse at higher frequencies as ionograms are generally displayed on a logarithmic scale. Every five minutes, a Ionogram data file is recorded, cleaned and the cleaned ionogram is transfered to Sydney for autoscaling and further analysis. The raw ionogram file is recorded in a DVD monthly, which will be posted to Sydney every month. During 10/06/1997 to 29/04/1998, Brisbane also had an IPS 5C ionosonde. The WDC archives all raw ionogram files and cleaned ionogram files. The Brisbane digital clean ionogram data is available since 10/06/1997, and digital raw ionogram data since 29/03/1998. The Brisbane scaled hourly ionospheric data include parameters of foF2, foF1, FoE, foEs, fbEs, fmin, fxl, f'scaling F/s, M(3000)F2, h'F2, h'F, h'E, h'Es, h'Scaling R/S and Type Es. They are avalable since 01/01/1950. The Brisbane median data of foF2 and M(3000)F2 are available since 06/1943.
- Additional information
-
- World Data Centre: Data Display and Download: Hourly Ionospheirc Data
-
includes browse display interface, button to get yearly data file and link to data availability chart
- Language
- en
- World Data Centre: Data Display and Download: Monthly Median Ionospheirc Data
-
includes browse display interface, button to get the median data file and link to data availability chart
- Language
- en
- Documentation
-
includes descriptions of data format of raw ionogram data and clean ionogram data
- Language
- en
- Software
-
Softwares to view clean ionogram data with scaling function
- Language
- en
- Real Time Display
-
Online viewer of Real Time clean ionogram data
- Language
- en
- Acknowledgement
-
- Contact
-
Role Person 1. General contact spase://SMWG/Person/Kehe.Wang 2. Metadata contact spase://SMWG/Person/Kehe.Wang - Release date
- 2016-02-25 17:00:00
- Repository
-
- Name
- spase://SMWG/Repository/SWS
- Availability
- Online
- Access rights
- Open
- URL
-
- https access to raw and clean ionogram data
-
https access to the raw and clean ionogram data of Brisbane IPS 5C (bri5c) and IPS 5D (bri5d) ionosondes
- Language
- en
- Format
- Binary
- Encoding
- None
- Acknowledgement
- Provider processing level
- The original ionogram data are raw data, they are then cleaned by reducing noise signals at the station. The manually scaled data is calibrated and the autoscaled data is uncalibrated.
- Instrument
- spase://ASWS/Instrument/Ground/Brisbane/Ionosonde
- Measurement type
- Active waves
- Temporal description
-
- Start date
- 1943-06-01 00:00:00
- Relative stop date
- 1 day ago
- Note
-
The earliest median ionospheric data since 01/06/1943. Digital clean ionogram data are current to within a day.
- Spectral range
- RadioFrequency
- Observed regions
- Earth.NearSurface.Ionosphere
- Caveats
- Keywords
- Hourly ionospheric data
- Ionogram
- Ionosphere
- Ionospheric data
- Median ionospheric data
- Scaled parameters
Parameters
Parameter #1
- Name
- Frequency
- Description
-
Frequencies used to sonde ionopshere
- Caveats
- Cadence
- 5 minutes
- Units
- MHz
- Wave type
- Electromagnetic
- Quantity
- Frequency
- Qualifier
- Directional
- Group
- Frequency range
-
- Spectral range
- RadioFrequency
- Low frequency
- 1
- High frequency
- 21.5
- Units
- MHz
Parameter #2
- Name
- Virtual Height
- Description
-
The apparent height of an ionospheric layer deduced from the time delay of a reflected radio pulse upon the assumption that it travelled at the speed of light over its entire path. However, the radio wave actually slows down as it is refracted so that the virtual height is greater than the true height of the refracting layer.
- Caveats
- Cadence
- 5 minutes
- Units
- Km
- Valid minimum
- 50
- Valid maximum
- 1000
- Quantity
- Other