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Last Updated: 04/07/2022

CEDAR ETI

About the study

Model Output File Format Description

Model output files should be in ASCII text format. Each file size should not exceed 1Mb. Full path name to the input file at your local disk should not contain any blank spaces or quotation marks. On DOS/Windows systems the recommended extension for the input file name is "txt".

The following file formats for model outputs for different physical parameters studies are expected.

Ionosphere/Thermosphere models or coupled model components:


TEC from ground-based GPS in eight 5° geographic longitude sectors

Year DOY Hour Min Sec Lat Lon TEC[TECU]

Here DOY is day of year, and TEC is Total Electron Content [TECU] at Lat + 2.5 [deg] and Lon + 2.5 [deg]. Lat and Lon are geographic latitude and longitude that correspond to first latitude and first longitude of the bin for measurement data to be compared with. Hour, Min and Sec also correspond to first Hour, Min, and Sec of the temporal bin for measurement data to be compared with.

TEC modeled value will be compared with GPS TEC measurement, which is median value over 15-min temporal bin (e.g., 00:00:00-00:15:00) and 5° lat x 5° lon spatial bin (e.g., -90°~ -85° lat and 25°~30° lon).

Click here [TXT] to view the FORTRAN statement to write the required format.

Sample file [TXT]


NmF2 from COSMIC in eight 5° geographic longitude sectors

Year DOY Hour Min Sec Lat Lon NmF2[cm-3]

Here DOY is day of year, and NmF2 is maximum electron density at Lat + 2.5 [deg] and Lon + 2.5 [deg]. Lat and Lon are geographic latitude and longitude that correspond to first latitude and first longitude of the bin for measurement data to be compared with. Hour, Min and Sec also correspond to first Hour, Min, and Sec of the temporal bin for measurement data to be compared with.

NmF2 modeled value will be compared with COSMIC NmF2 measurement, which is median value over 15-min temporal bin (e.g., 00:00:00-00:15:00) and 5° lat x 5° lon spatial bin (e.g., -90°~ -85° lat and 25°~30° lon).

Click here [TXT] to view the FORTRAN statement to write the required format.

Sample file [TXT]


hmF2 from COSMIC in eight 5° geographic longitude sectors

Year DOY Hour Min Sec Lat Lon hmF2[km] hmF2_a[km] hmF2_b[km]

Here DOY is day of year, and hmF2 is height of maximum electron density at Lat + 2.5 [deg] and Lon + 2.5 [deg]. Lat and Lon are geographic latitude and longitude that correspond to first latitude and first longitude of the bin for measurement data to be compared with. Hour, Min and Sec also correspond to first Hour, Min, and Sec of the temporal bin for measurement data to be compared with.

As optional parameters, hmF2_a and hmF2_b are height of 90% of the maximum electron density above hmF2, and below hmF2, respectively.

hmF2 modeled value will be compared with COSMIC hmF2 measurement, which is median value over 15 min temporal bin (e.g., 00:00:00-00:15:00) and 5° lat x 5° lon spatial bin (e.g., -90°~ -85° lat and 25°~30° lon).

Click here [TXT] to view the FORTRAN statement to write the required format.

Sample file [TXT]


Vertical and horizontal drifts at Jicamarca (VperpN and VperpE)

Year DOY Hour Min Sec Lat[deg] Lon[deg] Height[km] VperpN[m/s] VperpE[m/s]

Here DOY is day of year, andVperpN is vertical drift [m/s] and VperpE is horizontal drift [m/s] toward the east at Jicamarca (Lat[deg], Lon[deg]) at 155 km height. Lat and Lon are geographic latitude and longitude.

Sample file [TXT]


Neutral density at CHAMP orbit (Nden)

Year DOY Hour Min Sec Lat[deg] Lon[deg] Height[km] Nden[kg/m3]

Here DOY is day of year, andNden is neutral density [kg/m3] at CHAMP position (Lat [deg], Lon [deg], Height [km]. Lat and Lon are geographic latitude and longitude.

Sample file [TXT]


Electron density at CHAMP orbit (Eden)

Year DOY Hour Min Sec Lat[deg] Lon[deg] Height[km] Eden[1/cm3]

Here DOY is day of year, andEden is electron density [1/cm3] at CHAMP position (Lat [deg], Lon [deg], Height [km]). Lat and Lon are geographic latitude and longitude.

Sample file [TXT]


NmF2 from LEO satellites (CHAMP and COSMIC) and ISRs

Year DOY Hour Min Sec Lat[deg] Lon[deg] NmF2[1/cm3]

Here DOY is day of year, andNmF2 [1/cm3] is maximum electron density from either LEO satellites or ISRs. Lat [deg] and Lon [deg] for NmF2 from ISRs are geographic latitude and longitude of ISRs. For NmF2 from LEO radio occultation measurements, Hour, Min, Sec, Lat [deg] and Lon [deg] are universal time and geographic location at which maximum electron density occurs that are not on the satellite track.

Please see "Available measurements/locations/trajectories" to extract the maximum location and time.

Sample file [TXT]


HmF2 from LEO satellites (CHAMP and COSMIC) and ISRs

Year DOY Hour Min Sec Lat[deg] Lon[deg] HmF2[km] HmF2_a[km] HmF2_b[km]

Here DOY is day of year, and HmF2 [km] is height of maximum electron density from LEO satellites or ISRs. HmF2_a and HmF2_b [GIF] are height of 90% of the maximum electron density above HmF2, and below HmF2, respectively. Lat [deg] and Lon [deg] for NmF2 from ISRs are geographic latitude and longitude of ISRs. For NmF2 from LEO radio occultation measurements, Hour, Min, Sec, Lat [deg] and Lon [deg] are universal time and geographic location at which maximum electron density occurs that are not on the satellite track.

Please see "Available measurements/locations/trajectories" to extract the maximum location and time.

Sample file [TXT]


Temperature Tn obtained by Fabry-Perot Spectrometer at 250 km (Arrival height, Antarctica; Resolute Bay, Canada)

Year DOY Hour Min Sec Lat [deg] Lon[deg] Height[km] Tn[K]

Neutral temperature Tn at 250 km height obtained by the Fabry-Perot Spectrometer at Arrival heights, Antarctica (only for E.2005.190 event) and Resolute Bay, Canada (only for E.2006.348 event)

Here DOY is day of year, and Hour, Min, Sec are universal time. Height[km] is 250 km which corresponds to the emission peak for atomic oxygen red line (630 nm). Tn[K] represents neutral temperature in kelvin. There are measurements from 5 observation look directions at Arrival heights the geographic locations (lat, lon) become

  • N (-72.60, 166.67)
  • W (-77.83, 142.62)
  • S (-83.06, 166.67)
  • Z (-77.83, 166.67)
  • E (-77.83, 190.72).

Also, the geographic locations (lat, lon) from the 5 directions at Resolute Bay are

  • N (76.98, -94.89)
  • W (74.73, -103.42)
  • S (72.48, -94.89)
  • Z (74.73, -94.89)
  • E (74.73, -86.36)

Lat [deg] and Lon [deg] are geographic location of one of ten geographic locations shown above.

View sample file for Tn from eastward direction (E) at Arrival heights during E.2005.190 event.

Sample file [TXT]


Neutral winds obtained by Fabry-Perot Spectrometer at 250 km (Arrival height, Antarctica; Resolute Bay, Canada)

Year DOY Hour Min Sec Lat [deg] Lon[deg] Height[km] Un[m/s] Vn[m/s] Wn[ms]

Here Un[m/s], Vn[m/s], and Wn[m/s] are zonal, meridional , and vertical winds, respectively. Un is positive eastwards, Vn is positive northwards, and Wn is positive upwards.

View sample file for winds from eastward direction at Arrival heights during E.2005.190 event.

Sample file [TXT]


Ne at 300 km (Millstone Hill, Sondrestrom, EISCAT, Svalbard ISRs).

Year DOY Hour Min Sec Lat[deg] Lon[deg] Height[km] Ne[1/cm3]

Here DOY is day of year, and Ne is electron density [1/cm3] at 300 km height. Lat [deg] and Lon [deg] are geographic latitude and longitude of ISRs.

Ne at 300 km rom ISRs:

  • Millstone Hill(42.62, -71.49),
  • Sondrestrom(66.99, -50.95) ,
  • EISCAT (69.58, 19.23),
  • EISCAT Svalbard (78.1, 16.05)

View sample file for Ne from Millstone Hill ISR during E.2006.348 event.

Sample file [TXT]


Te at 300 km (Millstone Hill, Sondrestrom, EISCAT, Svalbard ISRs).

Year DOY Hour Min Sec Lat[deg] Lon[deg] Height[km] Te[K]

Here DOY is day of year, and Te is electron temperature [K] at 300 km height

Te at 300 km rom ISRs:

  • Millstone Hill(42.62, -71.49),
  • Sondrestrom(66.99, -50.95) ,
  • EISCAT (69.58, 19.23),
  • EISCAT Svalbard (78.1, 16.05)

View sample file for Te from Millstone Hill ISR during E.2006.348 event.

Sample file [TXT]


Ti at 300 km (Millstone Hill, Sondrestrom, EISCAT, Svalbard ISRs).

Year DOY Hour Min Sec Lat[deg] Lon[deg] Height[km] Ti[K]

Here DOY is day of year, and Ti is ion temperature [K] at 300 km height

Ti at 300 rm from ISRs:

  • Millstone Hill(42.62, -71.49),
  • Sondrestrom(66.99, -50.95) ,
  • EISCAT (69.58, 19.23),
  • EISCAT Svalbard (78.1, 16.05)

View sample file for Ti from Millstone Hill ISR during E.2006.348 event.

Sample file [TXT]


Ion vertical velocity at Sonderstrom ISR

Year DOY Hour Min Sec Lat[deg] Lon[deg] Height[km] Wi[m/s]

Here DOY is day of year, and Wi[m/s] is ion vertical velocity at 300km height.

Sample file [TXT]

List of runs for the study performed at the CCMC

Run NumberKey WordsModelModel VersionYearDoY at StartStart TimeRun Duration [days]E-field Model
CCMC_CETIC_060210_IT_1CETIC metricsUSU-GAIM2.4.320077900:00:003--
CCMC_CETIC_052510_IT_3CETIC metricsUSU-GAIM2.4.320085900:00:005--
CCMC_CETIC_052510_IT_2CETIC metricsUSU-GAIM2.4.3200714200:00:005--
CCMC_CETIC_052510_IT_1CETIC metricsUSU-GAIM2.4.320079100:00:003--
CCMC_CETIC_052010_IT_1CETIC metricsUSU-GAIM2.4.3200634800:00:003--
CCMC_CETIC_051710_IT_1CETIC metricsUSU-GAIM2.4.3200524100:00:004--
CCMC_CETIC_E.2008.059CETIC metricsTIE-GCM1.9220085900:00:003Heelis
CCMC_CETIC_E.2007.341CETIC metricsTIE-GCM1.92200734100:00:002Heelis
CCMC_CETIC_E.2007.190CETIC metricsTIE-GCM1.92200719000:00:001Heelis
CCMC_CETIC_E.2007.142CETIC metricsTIE-GCM1.92200714200:00:003Heelis
CCMC_CETIC_E.2007.091CETIC metricsTIE-GCM1.9220079100:20:002Heelis
CCMC_CETIC_E.2007.079CETIC metricsTIE-GCM1.9220077900:20:001Heelis
CCMC_CETIC_E.2006.348CETIC metricsTIE-GCM1.92200634800:20:003Heelis
CCMC_CETIC_E.2005.243CETIC metricsTIE-GCM1.92200524300:20:002Heelis
CCMC_CETIC_E.2001.243CETIC metricsTIE-GCM1.92200124300:20:001Heelis
CCMC_CETIC_053110CETIC metricsCTIPCTIPe2002100:10:001440Weimer
CCMC_CETIC_053010CETIC metricsCTIPCTIPe2002100:10:001440Weimer
CCMC_CETIC_052910CETIC metricsCTIPCTIPe2002100:10:001440Weimer
CCMC_CETIC_052710CETIC metricsCTIPCTIPe2002100:10:001440Weimer
CCMC_CETIC_052610CETIC metricsCTIPCTIPe2002100:20:001440Weimer
CCMC_CETIC_052510CETIC metricsCTIPCTIPe2002100:10:001440Weimer
CCMC_CETIC_052410CETIC metricsCTIPCTIPe2002100:10:001440Weimer

View Results via the Time-series Plotting Tool

VperpN/VperpENdenEdenNmF2HmF2TnUn/Vn/WnNe300Te300Ti300Wi300
E.2006.348JicamarcaCHAMPCHAMPCOSMIC1   CHAMP   COSMIC3   COSMIC4   COSMIC5   COSMIC2   Millstone_HillCHAMP   COSMIC2   COSMIC5   COSMIC4   COSMIC1   COSMIC3   Millstone_HillResolute_Bay_E   Resolute_Bay_S   Resolute_Bay_W   Resolute_Bay_Z   Resolute_Bay_NResolute_Bay_E   Resolute_Bay_N   Resolute_Bay_S   Resolute_Bay_W   Resolute_Bay_ZMillstone_Hill   EISCAT   EISCAT-Svalbard   SondrestromMillstone_Hill   EISCAT   EISCAT-Svalbard   SondrestromMillstone_Hill   EISCAT   EISCAT-Svalbard   SondrestromSondrestrom
E.2001.243JicamarcaCHAMPCHAMPno data availableno data available
E.2005.243JicamarcaCHAMPCHAMPCHAMP   Millstone_HillCHAMP   Millstone_Hill
E.2005.135CHAMPCHAMPCHAMPCHAMPSondrestromSondrestromSondrestromSondrestrom
E.2005.190CHAMPCHAMPCHAMPCHAMPArrival_Heights_E   Arrival_Heights_N   Arrival_Heights_S   Arrival_Heights_W   Arrival_Heights_ZArrival_Heights_E   Arrival_Heights_N   Arrival_Heights_S   Arrival_Heights_W   Arrival_Heights_Z
E.2007.091JicamarcaCHAMPCHAMPCHAMP   COSMIC1   COSMIC2   COSMIC3   COSMIC4   COSMIC5   COSMIC6   EISCAT-Svalbard   Poker_FlatCHAMP   COSMIC1   COSMIC2   COSMIC3   COSMIC4   COSMIC5   COSMIC6   EISCAT-Svalbard   Poker_Flat
E.2007.142JicamarcaCHAMPCHAMPCHAMP   COSMIC1   COSMIC2   COSMIC3   COSMIC4   COSMIC5   COSMIC6   Millstone_Hill   EISCAT-Svalbard   Poker_Flat   SondrestromCHAMP   COSMIC1   COSMIC2   COSMIC3   COSMIC4   COSMIC5   COSMIC6   Millstone_Hill   EISCAT-Svalbard   Poker_Flat   Sondrestrom
E.2008.059JicamarcaCHAMPCHAMPCHAMP   COSMIC2   COSMIC3   COSMIC4   COSMIC6   Millstone_Hill   SondrestromCHAMP   COSMIC2   COSMIC3   COSMIC4   COSMIC6   Millstone_Hill   Sondrestrom
E.2007.079JicamarcaCHAMPCHAMPCHAMP   COSMIC1   COSMIC2   COSMIC3   COSMIC5   COSMIC6   EISCAT-Svalbard   Poker_Flat   SondrestromCHAMP   COSMIC1   COSMIC2   COSMIC3   COSMIC5   COSMIC6   EISCAT-Svalbard   Poker_Flat   Sondrestrom
E.2007.190JicamarcaCHAMPCHAMPCHAMP   COSMIC1   COSMIC2   COSMIC4   COSMIC6   EISCAT-SvalbardCHAMP   COSMIC1   COSMIC2   COSMIC4   COSMIC6   EISCAT-Svalbard
E.2007.341JicamarcaCHAMPCHAMPCHAMP   COSMIC1   COSMIC2   COSMIC3   COSMIC4   COSMIC6   Millstone_Hill   Poker_Flat   SondrestromCHAMP   COSMIC1   COSMIC2   COSMIC3   COSMIC4   COSMIC6   Millstone_Hill   Poker_Flat   Sondrestrom

Status of the Challenge

Phys. Parameter / Metrics StudyWhen InitiatedObservational data time series preparationDatabase of model resultsPaper completion.
1. NmF2 and hmF2 from ISRs, and Vertical drift at Jicamarcasummer 2009completed observ. data provided by:for vertical drift - J.L.Chau and D.Andersonfor NmF2 and hMF2 from ISRs - J.Sojka and B.Rideoutcompleteddoi:10.1029/2011SW000727
2. Electron and neutral densities at CHAMP orbits, and NmF2 and hmF2 from LEOsummer 2009completed observ. data for neutral density at CHAMP orbits provided by E.SuttoncompletedAssessment of the predictive capability of IT models at the Community Coordinated Modeling Center, doi:10.1029/2012SW000851, doi:10.1002/9781118704417.ch13
3. Thermospheric parameters at 250 km (Tn and Un/Vn/Wn) and ionospheric parameters at 300 km (Ne, Te, Ti, and Wi)summer 2010completed observ. data provided by: for neutral winds and temperatures - Q.Wufor Ne,Te,Ti and Wi at 300 km - by J.Holtsubmissions are being acceptedpending
4. Climatology studysummer 2010available observ. data provided by:for TEC - A.Coster, L.Goncharenko and Xiaoqing Pifor NmF2 and hmF2 from Cosmic - L.Lomidze and L.Scherliessfor CHAMP Neutral density - E.Suttonfor ion drifts - C/NOFSavailableDiscussions were held at GEM mini-workshops 2011-2013, CEDAR Workshops 2012 and 2013  and pre Space Weather 2013 Workshop
5. Global TEC, NmF2 and hmF2summer 2011available for TEC - A.Coster and L.Goncharenkofor NmF2 and hmF2 from Cosmic - L.Lomidze and L.SchierliessavailableDiscussions were held at 2011, 2013 and 2014 GEM mini workshops as well as 2012-2014 CEDAR Workshops. Paper: Shim et al. manuscript was submitted in April, 2017. Further discussions are planned for 2017 CEDAR Workshop.
6. Role of drivers (models for ionosphere potential patterns) (joint with GEM)summer 2011observ. data for AMIE potentials provided by A.Ridley and G.Crowleysubmissions are being acceptedDiscussions on tools for drivers swap were held at 2011 and 2012 GEM mini workshop, CEDAR Workshop 2012 and 2013 and pre Space Weather 2013 workshop
7. Neutral Densities/Satellite Drag2013observ. data for neutral density at CHAMP orbits provided by E.SuttonHASDM data provided by B.BowmanavailableE.Kalafatoglu Eyiguler et al., 2013, 2014-1, and 2014-2. Discussions were held at the 2015 CEDAR Workshop
8. Quantification of Storm Impacts: Ionospheric/Thermospheric disturbances2013available observ. data provided by:for TEC - A.Coster, L.Goncharenko and Xiaoqing Pifor NmF2 and hmF2 from I. Tsagourifor CHAMP Neutral density - E.SuttonavailableDiscussions were held at the CEDAR Workshops (2013, 2014, 2016) and at the GEM mini Workshops (2013 , 2016). Further discussions are planned for the 2017 CEDAR Workshop.
9. Regional TEC2014GPS TEC data provided by A.Coster and L.GoncharenkoavailableDiscussions were held at the 2015 GEM mini workshop. Further discussions are planned for the 2017 CEDAR Workshop.

Presentations

Presentations from CEDAR Workshop 2012 (Santa Fe, NM)

Mini-workshop at the Fall AGU 2011 Meeting (San Francisco, CA)

Presentations from GEM-CEDAR Workshop 2011

Summer 2010 CEDAR Workshop (Boulder, CO)

Contact