Version:2.4.1
NumericalData
ResourceID
spase://CNES/NumericalData/CDPP-AMDA/SWARM-B/GNSS/swarmb-gps-all
ResourceHeader
ResourceName
Swarm-B - GNSS - tec
AlternateName
total electron content
ReleaseDate
2025-06-04 15:28:04Z
Description
The signals transmitted by the Global Navigation Satellite System (GNSS) satellites are delayed
by ionospheric/plasmaspheric electrons before reaching the Swarm GNSS antenna. From the
GNSS signal delay we can estimate slant total electron content (STEC), which is defined as
‘integrated’ electron density along the line of sight from Swarm to GNSS satellites.
Acknowledgement
The access and use of Swarm products are regulated by the ESA's Data Policy (https://earth.esa.int/eogateway/documents/20142/1564626/ESA-Data-Policy-ESA-PB-EO-2010-54.pdf) and subject to the acceptance of the specific Terms and Conditions (https://earth.esa.int/eogateway/documents/20142/1564626/Terms-and-Conditions-for-the-use-of-ESA-Data.pdf).
Users accessing Swarm products are intrinsically acknowledging and accepting the above.
Contacts
InformationURL
InformationURL
Name
Swarm Product Data Handbook
URL
InformationURL
Name
Swarm Data Access
URL
InformationURL
Name
Swarm L2 TEC Product Description, SW-TR-GFZ-GS-0007, Rev: 4, 2017-05-22
URL
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
CDPP/AMDA HAPI Server
URL
Style
HAPI
ProductKey
swarmb-gps-all
Description
Web Service to this product using the HAPI interface.
Format
CSV
Acknowledgement
Thank you for acknowledging the use of AMDA in publications with wording like "Data analysis was performed with the AMDA science analysis system provided by the Centre de Données de la Physique des Plasmas (CDPP) supported by CNRS, CNES, Observatoire de Paris and Université Paul Sabatier, Toulouse". See the Rules of the road at https://amda.cdpp.eu/help/policy.html . Please acknowledge the Data Providers.
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
CDPP/AMDA Web application
URL
Description
Access to Data via CDPP/AMDA Web application.
Format
CSV
Format
VOTable
Format
CDF
Format
PNG
Acknowledgement
Thank you for acknowledging the use of AMDA in publications with wording like "Data analysis was performed with the AMDA science analysis system provided by the Centre de Données de la Physique des Plasmas (CDPP) supported by CNRS, CNES, Observatoire de Paris and Université Paul Sabatier, Toulouse". See the Rules of the road at https://amda.cdpp.eu/help/policy.html . Please acknowledge the Data Providers.
ProviderName
ESA
ProviderResourceName
SW_TECxTMS_2F
InstrumentIDs
MeasurementType
Waves
TemporalDescription
TimeSpan
StartDate
2013-11-25 11:01:15Z
StopDate
2025-05-30 23:59:59Z
Cadence
PT1S
ObservedRegion
Earth.Magnetosphere
Caveats
It is recommended to use absolute VTEC data with corresponding elevation angles of the GPS
rays of at least 50◦ . The recommendation is given since the uncertainty of the mapping function increases with decreasing elevation angle.
Note that AMDA keeps STEC / VTEC data for the highest elevation angle only.
Parameter #1
Name
stec
ParameterKey
swb_stec
Description
Absolute slant TEC from largest elevation GNSS satellite
Units
TECU
RenderingHints
Support
Parameter #2
Name
vtec
ParameterKey
swb_vtec
Description
Absolute vertical TEC from largest elevation GNSS satellite
Units
TECU
RenderingHints
Support
Parameter #3
Name
relative stec
ParameterKey
swb_stec_rel
Description
Relative slant TEC
Units
TECU
RenderingHints
Support
Parameter #4
Name
gps elevation angle
ParameterKey
swb_gps_elev
Description
gps elevation angle
Units
deg
RenderingHints
Support
Parameter #5
Name
gps number
ParameterKey
swb_gps_number
Description
gps number
RenderingHints
Support
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