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TIMED SEE Level2 EGS Solar Irradiance Data

ResourceID
spase://VSPO/NumericalData/TIMED/SEE/L2_EGS

Description

The EUV Grating Spectrograph (EGS) aboard SEE performs measurements of the Sun for about 3 minutes every orbit (97 minutes) which usually gives 14-15 measurements per day. The Level 2 data is time averaged over the entire day, after being 1-AU corrected and removing flares. The 1-AU correction is provided.

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Details

Version:2.2.2

NumericalData

ResourceID
spase://VSPO/NumericalData/TIMED/SEE/L2_EGS
ResourceHeader
ResourceName
TIMED SEE Level2 EGS Solar Irradiance Data
ReleaseDate
2018-01-18 21:30:14.386
Description

The EUV Grating Spectrograph (EGS) aboard SEE performs measurements of the Sun for about 3 minutes every orbit (97 minutes) which usually gives 14-15 measurements per day. The Level 2 data is time averaged over the entire day, after being 1-AU corrected and removing flares. The 1-AU correction is provided.

Acknowledgement
NASA, Thomas N. Woods
Contacts
RolePerson
1.PrincipalInvestigatorspase://SMWG/Person/Thomas.N.Woods
InformationURL
Name
L2 EGS Data Information
URL
http://lasp.colorado.edu/home/see/data/daily-averages/level-2-egs/
PriorIDs
spase://VITMO/NumericalData/TIMED/SEE/L2_EGS
AccessInformation
RepositoryID
spase://SMWG/Repository/TIMED/SEE_POC
Availability
Online
AccessRights
Open
AccessURL
Name
SEE Data Products web page
URL
http://lasp.colorado.edu/home/see/data/
Description

This web page allows the request of data files for this product. To request data: for the EGS data type of interest, click the year of interest to go the the ftp directory of files and download the desired day-long file by clicking on it.

Format
NetCDF
Encoding
None
Acknowledgement
NASA, Thomas N. Woods
ProcessingLevel
Calibrated
ProviderResourceName
SEE Level 2 EGS Solar Irradiance data
ProviderProcessingLevel
Level 2
ProviderVersion
10
InstrumentIDs
spase://SMWG/Instrument/TIMED/SEE
MeasurementType
Irradiance
TemporalDescription
TimeSpan
StartDate
2002-02-08 00:00:00.000
RelativeStopDate
P2D
ObservedRegion
Sun
Keywords
TIMED
SEE
EGS
Sun
Parameter #1
Name
DATE
ParameterKey
DATE
Description

Date of observation

Units
YYYYDOY
UnitsConversion
Structure
Size
1
Description
ValidMin
ValidMax
Support
SupportQuantity
Other
Parameter #2
Name
Wavelength intervals
ParameterKey
WAVE
Description

Array of wavelength intervals, half-Angstrom centers

Units
nm
UnitsConversion
Structure
Size
1690
Description

Dimensions: [Number_of_wavelength_intervals] - where Number_of_wavelength_intervals is the number of wavelength intervals.

ValidMin
ValidMax
Support
SupportQuantity
Other
Parameter #3
Name
EGS median solar irradiance
ParameterKey
FLUX_MEDIAN
Description

Array of median solar irradiances for each wavelength interval. This is the spectrum.

Units
W / m^2 / nm
UnitsConversion
Structure
Size
1690
Description

Dimensions: [Number_of_wavelength_intervals] - where Number_of_wavelength_intervals is the number of wavelength intervals.

Wave
WaveType
Electromagnetic
WaveQuantity
Wavelength
WavelengthRange
Low
26.05
High
194.95
Units
nm
Parameter #4
Name
Differences between the median and weighted averaged solar irradiances
ParameterKey
DIFF_MA
Description

Array of differences between the median and weighted averaged solar irradiances for each wavelength interval

Units
W / m^2 / nm
UnitsConversion
Structure
Size
1690
Description

Dimensions: [Number_of_wavelength_intervals] - where Number_of_wavelength_intervals is the number of wavelength intervals.

ValidMin
ValidMax
Support
SupportQuantity
Other
Parameter #5
Name
Accuracy of solar irradiance
ParameterKey
ERR_TOT
Description

Accuracy of solar irradiance

Units
Fractional
UnitsConversion
Structure
Size
1690
Description

Dimensions: [Number_of_wavelength_intervals] - where Number_of_wavelength_intervals is the number of wavelength intervals.

ValidMin
ValidMax
Support
SupportQuantity
Other
Parameter #6
Name
Measurement precision
ParameterKey
ERR_MEAS
Description

Measurement precision

Units
Fractional
UnitsConversion
Structure
Size
1690
Description

Dimensions: [Number_of_wavelength_intervals] - where Number_of_wavelength_intervals is the number of wavelength intervals.

ValidMin
ValidMax
Support
SupportQuantity
Other
Parameter #7
Name
Standard deviation of the median
ParameterKey
STDEV_MEAS
Description

Standard deviation of the median

Units
Fractional
UnitsConversion
Structure
Size
1690
Description

Dimensions: [Number_of_wavelength_intervals] - where Number_of_wavelength_intervals is the number of wavelength intervals.

ValidMin
ValidMax
Support
SupportQuantity
Other
Parameter #8
Name
Number of points used in determining the daily average
ParameterKey
NUMPT
Description

Array of the Number of points (1-Angstrom-gridded measurements) used in determining the daily average for each wavelength interval

Units
UnitsConversion
Structure
Size
1690
Description

Dimensions: [Number_of_wavelength_intervals] - where Number_of_wavelength_intervals is the number of wavelength intervals.

ValidMin
ValidMax
Support
SupportQuantity
Other
Parameter #9
Name
AU correction factor
ParameterKey
COR_1AU
Description

AU correction factor for date

Units
1 / (AU^2)
UnitsConversion
Structure
Size
1
Description
ValidMin
ValidMax
Support
SupportQuantity
Other
Parameter #10
Name
Order Sorting correction applied to flux_median
ParameterKey
COR_OS_MED
Description

Order Sorting correction applied to flux_median

Units
W/m^2/nm
UnitsConversion
Structure
Size
1690
Description

Dimensions: [Number_of_wavelength_intervals] - where Number_of_wavelength_intervals is the number of wavelength intervals.

ValidMin
ValidMax
Support
SupportQuantity
Other
Parameter #11
Name
Order Sorting correction applied to weighted avg irradiance
ParameterKey
COR_OS_AVG
Description

Order Sorting correction applied to weighted avg irradiance

Units
W/m^2/nm
UnitsConversion
Structure
Size
1690
Description

Dimensions: [Number_of_wavelength_intervals] - where Number_of_wavelength_intervals is the number of wavelength intervals.

ValidMin
ValidMax
Support
SupportQuantity
Other
Parameter #12
Name
Degradation function linear extrapolation/interpolation flag
ParameterKey
DEGRADE_MODEL
Description

Long value = 1 if degradation function is linearly extrapolated, 0 if linearly interpolated

Units
UnitsConversion
Structure
Size
1
Description
ValidMin
ValidMax
Support
SupportQuantity
Other
Parameter #13
Name
Averaged atmospheric correction factors
ParameterKey
COR_ATMOS.AVG
Description

Array of Averaged atmospheric correction factors for each wavelength interval

Units
Fractional
UnitsConversion
Structure
Size
1690
Description

Dimensions: [Number_of_wavelength_intervals] - where Number_of_wavelength_intervals is the number of wavelength intervals.

ValidMin
ValidMax
Support
SupportQuantity
Other
Parameter #14
Name
Minimum atmospheric correction factors
ParameterKey
COR_ATMOS.MIN
Description

Array of Minimum atmospheric correction factors

Units
Fractional
UnitsConversion
Structure
Size
1690
Description

Dimensions: [Number_of_wavelength_intervals] - where Number_of_wavelength_intervals is the number of wavelength intervals.

ValidMin
ValidMax
Support
SupportQuantity
Other
Parameter #15
Name
Maximum atmospheric correction factors
ParameterKey
COR_ATMOS.MAX
Description

Array of Maximum atmospheric correction factors

Units
Fractional
UnitsConversion
Structure
Size
1690
Description

Dimensions: [Number_of_wavelength_intervals] - where Number_of_wavelength_intervals is the number of wavelength intervals.

ValidMin
ValidMax
Support
SupportQuantity
Other
Parameter #16
Name
Average instrument degradation correction factors
ParameterKey
COR_DEGRADE.AVG
Description

Array of Average instrument degradation correction factors

Units
Fractional
UnitsConversion
Structure
Size
1690
Description

Dimensions: [Number_of_wavelength_intervals] - where Number_of_wavelength_intervals is the number of wavelength intervals.

ValidMin
ValidMax
Support
SupportQuantity
Other
Parameter #17
Name
Minimum instrument degradation correction factors
ParameterKey
COR_DEGRADE.MIN
Description

Array of Minimum instrument degradation correction factors

Units
Fractional
UnitsConversion
Structure
Size
1690
Description

Dimensions: [Number_of_wavelength_intervals] - where Number_of_wavelength_intervals is the number of wavelength intervals.

ValidMin
ValidMax
Support
SupportQuantity
Other
Parameter #18
Name
Maximum instrument degradation correction factors
ParameterKey
COR_DEGRADE.MAX)
Description

Array of Maximum instrument degradation correction factors

Units
Fractional
UnitsConversion
Structure
Size
1690
Description

Dimensions: [Number_of_wavelength_intervals] - where Number_of_wavelength_intervals is the number of wavelength intervals.

ValidMin
ValidMax
Support
SupportQuantity
Other