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TIMED GUVI Electron Density Profile PS Images

(2025). TIMED GUVI Electron Density Profile PS Images [Data set]. Johns Hopkins University Applied Physics Laboratory; Space Physics Data Facility.

ResourceID
spase://NASA/DisplayData/TIMED/GUVI/Electron_Density_Profiles_PS

Description

F region electron density as a function of altitude and latitude derived from the GUVI limb data. Summaries of estimated peak electron density and total electron content are also given. The profiles are derived from the 135.6 nm channel of the GUVI limb data. The 135.6 nm emission at night is due almost exclusively to recombination of O+ ions. Since O+ is the primary ion in the F region, the 135.6 nm volume emission rate is closely related to the square of the electron density. The file spans roughly 63 days in one-day plots

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Details

Version:2.7.1

MetadataRightsList

Rights
SchemeURI
https://spdx.org/licenses/
RightsIdentifierScheme
SPDX
RightsIdentifier
CC0-1.0
RightsURI
https://spdx.org/licenses/CC0-1.0.html
RightsName
Creative Commons Zero v1.0 Universal
Note
CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions

Version:2.7.1

DisplayData

ResourceID
spase://NASA/DisplayData/TIMED/GUVI/Electron_Density_Profiles_PS
NamingAuthority
NASA
ResourceType
DisplayData
ResourceHeader
ResourceName
TIMED GUVI Electron Density Profile PS Images
ReleaseDate
2025-12-04 13:28:07Z
RevisionHistory
RevisionEvent
ReleaseDate
2020-10-02 19:45:37Z
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2025-11-14 16:17:32Z
Note
Added PublicationInfo. Added ResourceType and NamingAuthority. Changed http to https in top-level schemaLocation attribute. Fixed version number separator in top-level schemaLocation attribute. Matched version number in schemaLocation attribute to updated value in Version tag. ZCB
RevisionEvent
ReleaseDate
2025-12-04 13:28:07Z
Note
Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB
Description

F region electron density as a function of altitude and latitude derived from the GUVI limb data. Summaries of estimated peak electron density and total electron content are also given. The profiles are derived from the 135.6 nm channel of the GUVI limb data. The 135.6 nm emission at night is due almost exclusively to recombination of O+ ions. Since O+ is the primary ion in the F region, the 135.6 nm volume emission rate is closely related to the square of the electron density. The file spans roughly 63 days in one-day plots

Acknowledgement
The GUVI data used here are provided through support from the NASA MOamp;DA program. The GUVI instrument was designed and built by The Aerospace Corporation and The Johns Hopkins University. The Principal Investigator is Dr. Andrew B. Christensen and the Chief Scientist and co-PI is Dr. Larry J. Paxton. See also Data Usage Policy at http://guvitimed.jhuapl.edu/home_guvi-datausage.
PublicationInfo
Authors
Christensen, Andrew B.; Paxton, Larry J.
PublicationDate
2025-11-14 16:17:32Z
PublishedBy
Johns Hopkins University Applied Physics Laboratory; Space Physics Data Facility
Contacts
RolePersonStartDateStopDateNote
1.PrincipalInvestigatorspase://SMWG/Person/Andrew.B.Christensen
2.CoInvestigatorspase://SMWG/Person/Larry.J.Paxton
InformationURL
Name
Electron Density Profiles Information
URL
PriorIDs
spase://VITMO/DisplayData/TIMED/GUVI/Electron_Density_Profiles_PS
spase://VSPO/DisplayData/TIMED/GUVI/Electron_Density_Profiles_PS
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
GUVI POC EDP Summary PostScript Data Request
URL
Description

This web page allows the request of PostScript-formatted image files for this product. To request data: select the year then click the link of the desired file name.

AccessURL
Name
GUVI Data Products Access
URL
Description

This web page provides access to data products as well as to descriptions and availability information.

Format
Postscript
Encoding
None
Acknowledgement
NASA, Andrew B. Christensen
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
GUVI POC EDP Summary PostScript Data Request
URL
Description

This web page allows the request of PDF-formatted image files for this product. To request data: select the year then click the link of the desired file name.

AccessURL
Name
GUVI Data Products Access
URL
Description

This web page provides access to data products as well as to descriptions and availability information.

Format
PDF
Encoding
None
Acknowledgement
NASA, Andrew B. Christensen
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
RightsList
Rights
SchemeURI
https://spdx.org/licenses/
RightsIdentifierScheme
SPDX
RightsIdentifier
CC0-1.0
RightsURI
https://spdx.org/licenses/CC0-1.0.html
RightsName
Creative Commons Zero v1.0 Universal
Note
CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products
AccessURL
Name
FTPS from SPDF (not with most browsers)
URL
Description

FTP repository of TIMED GUVI L2B EDP data in CDF format at CDAWeb

AccessURL
Name
HTTPS from SPDF
URL
Description

In CDF via HTTP from SPDF

Format
CDF
Acknowledgement
Please acknowledge the support from the CDAWeb team at GSFC/SPDF.
ProcessingLevel
Calibrated
ProviderResourceName
Electron Density Profile Daily Summaries
ProviderProcessingLevel
Level 3
InstrumentIDs
MeasurementType
EnergeticParticles
TemporalDescription
TimeSpan
StartDate
2002-02-22 00:00:00.000Z
StopDate
2006-05-20 00:00:00.000Z
DisplayCadence
P1D
ObservedRegion
Earth.NearSurface.Ionosphere
Caveats
The L1C files currently available are being evaluated. Please contact GUVI team before using
Keywords
TIMED
GUVI
lower thermosphere
ionosphere
MLTI
aurora