Shortname: OMSO2
Longname: OMI/Aura Sulphur
Dioxide (SO2) Total Column 1-Orbit L2 Swath 13x24 km
PFS Version: 1.2.0
Date: 01
October 2014
Author(s): Can Li,
Joanna Joiner, Nick Krotkov, Pawan
Bhartia
PGE Version:
1.2.0 and
later
Lead Algorithm Scientist:
Nick Krotkov, Can Li
Lead Algorithm Developer:
Can Li
Lead PGE Developer:
Can Li
PGE Developer(s):
Phil Durbin, Arnold Martin
Description: >
This document specifies
the product format for the Version 1.2.0 and
subsequent
delivery of the OMSO2 L2 PGE, which uses OMTO3 L2 measurements
to
estimate the total column amount of volcanic SO2 (Reference 1) and PCA
algorithm
to
estimate anthopogenic SO2 in the boundary
layer(Reference 2). The product is
stored as
one
HDF-EOS 5 swath file for each granule (i.e., one orbit) of OMSO2
L2 data, and has a
size range of 20 to 30 Mb.
Global Metadata:
- Metadata Name: AuthorAffiliation
Mandatory: T
Data Type: HE5T_NATIVE_CHAR
Number of
Values: 1
Range or Valids: Not
applicable (free format).
Data Source: PCF
Description: Actual is "GSFC".
- Metadata Name: AuthorName
Mandatory: T
Data Type:HE5T_NATIVE_CHAR
Number of
Values: 1
Range or Valids: Not
applicable (free format).
Data Source: PCF
Description: >
Actual is
"Can Li, Joanna Joiner, Nick Krotkov, Pawan Bhartia".
- Metadata Name: GranuleDay
Mandatory: T
Data Type: HE5T_NATIVE_INT
Number of
Values: 1
Range or Valids: Range is 1
to 31.
Data Source: PGE
Description: >
The day of the
month at the start of the granule.
- Metadata Name: GranuleMonth
Mandatory: T
Data Type: HE5T_NATIVE_INT
Number of
Values: 1
Range or Valids: Range is 1
to 12.
Data Source:PGE
Description: The month at the start of the granule.
- Metadata Name: GranuleYear
Mandatory: T
Data Type: HE5T_NATIVE_INT
Number of
Values: 1
Range or Valids: Range is
2000 to 2099.
Data Source: PGE
Description: >
The (four-digit)
year at the start of the granule.
- Metadata Name: HDFEOSVersion
Mandatory: T
Data Type: HE5T_NATIVE_CHAR
Number of
Values: 1
Range or Valids:
Automatically set by HDF-EOS.
Data Source: HE
Description: Example is "HDFEOS_5.1.5".
- Metadata Name: InputVersions
Mandatory: T
Data Type: HE5T_NATIVE_CHAR
Number of
Values: 1
Range or Valids: Not
applicable (free format).
Data Source: PGE
Description:
A list of every
ESDT (including version) whose product was used as
input
for the processing.
- Metadata Name: InstrumentName
Mandatory: T
Data Type: HE5T_NATIVE_CHAR
Number of
Values: 1
Range or Valids:
are "HIRDLS", "MLS", "OMI" and "TES".
Data Source: PCF
Description: Actual is "OMI" (see Section
6.1 of Reference 3).
- Metadata Name: OrbitData
Mandatory: T
Data Type: HE5T_NATIVE_CHAR
Number of
Values: 1
Range or Valids: Valids are "DEFINITIVE" and
"PREDICTED".
Data Source: L1B
Description: >
Indicates whether
orbit data used by the L1B processor is definitive
or
predicted.
- Metadata Name: PGEVERSION
Mandatory: T
Data Type: HE5T_NATIVE_CHAR
Number of
Values: 1
Range or Valids: Range is
"0.0.0" to "9.9.99".
Data Source: PCF
Description: Actual is "1.2.0".
- Metadata Name: ProcessingCenter
Mandatory: T
Data Type: HE5T_NATIVE_CHAR
Number of
Values: 1
Range or Valids: Not
applicable (free format).
Data Source: PCF
Description: Example is "OMIDAPS".
- Metadata Name: ProcessingHost
Mandatory: T
Data Type: HE5T_NATIVE_CHAR
Number of
Values: 1
Range or Valids: Not
applicable (free format).
Data Source: PCF
Description: >
The output from
executing the Unix "uname
-a" command on the
processing machine.
- Metadata Name: ProcessLevel
Mandatory: T
Data Type: HE5T_NATIVE_CHAR
Number of
Values: 1
Range or Valids: Valids are "1b", "2" and "3".
Data Source: PCF
Description: Actual is "2".
- Metadata Name: TAI93At0zOfGranule
Mandatory: T
Data Type: HE5T_NATIVE_DOUBLE
Number of
Values: 1
Range or Valids: Range is
0.0d+00 to 1.0d+30.
Data Source: PGE
Description: >
The TAI93 time at
0z of the granule (see Section 6.1 of Reference 3).
Swath Metadata:
- Metadata Name: SwathName
Mandatory: T
Data Type: HE5T_NATIVE_CHAR
Number of
Values: 1
Range or Valids: Valid is
"OMI Total Column Amount SO2".
Data Source: PGE
Description: Actual is "OMI Total Column Amount
SO2".
/span>- Metadata Name: VerticalCoordinate
Mandatory: T
Data Type: HE5T_NATIVE_CHAR
Number of
Values: 1
Range or Valids: >
Valids are "Pressure", "Altitude",
"Potential Temperature",
"Slant
Column" and "Total Column".
Data Source: PGE
Description: >
Actual is
"Total Column" (see Section 6.2 of Reference 3).
Swath Dimensions:
- Dimension
Name: nTimes
Data Type: HE5T_NATIVE_INT
Dimension
Type: FIXED
Number of
Values: 1
Range or Valids: Range is 0
to 9999.
Data Source: L1B
Description: The number of "scan" lines in
the swath.
- Dimension
Name: nXtrack
Data Type: HE5T_NATIVE_INT
Dimension
Type: FIXED
Number of
Values: 1
Range or Valids: Range is 1
to 60.
Data Source: L1B
Description: The number of ground pixels per
"scan" line.
Geolocation Fields:
- Field Name: GroundPixelQualityFlags
Data Type: HE5T_NATIVE_UINT16
Dimensions: nTimes,nXtrack
Range or Valids: Range is 0 to 65534.
Missing Value: 65535
Offset: 0.0d0
Scale Factor: 1.0d0
Units: NoUnits
Data Source: L1B
Title: "Ground Pixel Quality
Flags"
Unique Field
Definition: TOMS-OMI-Shared
Description: >
Bits 0 to 3
together contain the land/water flags:
0 - shallow ocean
1 - land
2 - shallow inland
water
3 - ocean
coastline/lake shoreline
4 - ephemeral
(intermittent) water
5 - deep inland
water
6 - continental
shelf ocean
7 - deep ocean
8-14 - not used
15 - error flag for
land/water
Bits 4 to 6 are
flags that are set to 0 for FALSE, or 1 for TRUE:
Bit 4 - sun
glint possibility flag
Bit 5 - solar
eclipse possibility flag
Bit 6 -
geolocation error flag
Bit 7 is reserved for future use (currently set to 0).
Bits 8 to 14
together contain the snow/ice flags (based on NISE):
0 - snow-free land
1-100 - sea ice concentration (percent)
101 - permanent ice
(Greenland, Antarctica)
102 - not used
103 - dry snow
104 - ocean
(NISE-255)
105-123 -
reserved for future use
124 - mixed pixels at
coastline (NISE-252)
125 - suspect ice
value (NISE-253)
126 - corners
undefined (NISE-254)
127 - error
Bit 15 - NISE
nearest neighbor filling flag.
(See Section 6.2
of Reference 5 for more details.)
- Field Name: Latitude
Data Type: HE5T_NATIVE_FLOAT
Dimensions: nTimes,nXtrack
Range or Valids:
Range is -90.0 to 90.0.
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d+00
Scale Factor: 1.0d+00
Units: deg
Data Source: L1B
Title: "Geodetic
Latitude"
Unique Field Definition: TOMS-Aura-Shared
Description: >
The geodetic
latitude (in deg) at the center of the ground pixel.
- Field Name: Longitude
Data Type: HE5T_NATIVE_FLOAT
Dimensions:nTimes,nXtrack
Range or Valids:
Range is -180.0 to 180.0.
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d+00
Scale Factor: 1.0d+00
Units: deg
Data Source: L1B
Title: "Geodetic
Longitude"
Unique Field
Definition: TOMS-Aura-Shared
Description: >
The geodetic
longitude (in deg) at the center of the ground pixel.
- Field Name: RelativeAzimuthAngle
Data Type: HE5T_NATIVE_FLOAT
Dimensions: nTimes,nXtrack
Range or Valids:
Range is -180.0 to 180.0.
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d+00
Scale Factor: 1.0d+00
Units: deg(EastofNorth)
Data Source: L1B
Title: >
"Relative
Azimuth Angle (sun + 180 - view)"
Unique Field
Definition: TOMS-Aura-Shared
Description: >
The relative (sun
+ 180 - view) azimuth angle (in deg) at the center
of
the ground pixel.
- Field Name: SecondsInDay
Data Type: HE5T_NATIVE_FLOAT
Dimensions: nTimes
Range or Valids:
Range is 0.0 to 86401.0.
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d+00
Scale Factor: 1.0d+00
Units: s
Data Source: L1B
Title: "Seconds after UTC
midnight"
Unique Field
Definition: TOMS-Aura-Shared
Description: >
The time (in s) after UTC midnight at the start of the
"scan".
- Field Name: SolarAzimuthAngle
Data Type: HE5T_NATIVE_FLOAT
Dimensions: nTimes,nXtrack
Range or Valids:
Range is -180.0 to 180.0.
Missing Value:"-0X1P+100 (C language
representation)"
Offset: 0.0d+00
Scale Factor: 1.0d+00
Units: deg(EastofNorth)
Data Source: L1B
Title: "Solar Azimuth
Angle"
Unique Field
Definition: TOMS-Aura-Shared
Description: >
The solar azimuth
angle (in deg) at the center of the ground pixel.
- Field Name: SolarZenithAngle
Data Type: HE5T_NATIVE_FLOAT
Dimensions: nTimes,nXtrack
Range or Valids:
Range is 0.0 to 180.0.
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d+00
Scale Factor: 1.0d+00
Units: deg
Data Source: L1B
Title: "Solar Zenith
Angle"
Unique Field
Definition: TOMS-Aura-Shared
Description: >
The solar zenith
angle (in deg) at the center of the ground pixel.
- Field Name: SpacecraftAltitude
Data Type: HE5T_NATIVE_FLOAT
Dimensions: nTimes
Range or Valids:
Range is 4.0E05 to 9.0E05.
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d+00
Scale Factor: 1.0d+00
Units: m
Data Source: L1B
Title: "Spacecraft Altitude"
Unique Field
Definition: TOMS-Aura-Shared
Description: >
Height above WGS84
ellipsoid.
- Field Name: SpacecraftLatitude
Data Type: HE5T_NATIVE_FLOAT
Dimensions: nTimes
Range or Valids: Range is -90.0 to 90.0.
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d+00
Scale Factor: 1.0d+00
Units: deg
Data Source: L1B
Title: "Spacecraft Latitude"
Unique Field
Definition: TOMS-Aura-Shared
Description: >
Geodetic latitude
above WGS84 ellipsoid.
- Field Name: SpacecraftLongitude
Data Type: HE5T_NATIVE_FLOAT
Dimensions: nTimes
Range or Valids:
Range is -180.0 to 180.0.
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d+00
Scale Factor: 1.0d+00
Units: deg
Data Source: L1B
Title: "Spacecraft
Longitude"
Unique Field
Definition: TOMS-Aura-Shared
Description: >
Geodetic longitude
above WGS84 ellipsoid.
- Field Name: TerrainHeight
Data Type: HE5T_NATIVE_INT16
Dimensions: nTimes,nXtrack
Range or Valids:
Range is -100.0 to 10000.0.
Missing Value: -32767
Offset: 0.0d+00
Scale Factor: 1.0d+00
Units: m
Data Source: L1B
Title: "Terrain Height"
Unique Field
Definition: TOMS-Aura-Shared
Description: >
The terrain height
(in m) at the center of the ground pixel (from
the
OMI Level 1B file).
- Field Name: Time
Data Type: HE5T_NATIVE_DOUBLE
Dimensions: nTimes
Range or Valids:
Range is -5.0D09 to 1.0D10.
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d+00
Scale Factor: 1.0d+00
Units: s
Data Source: L1B
Title: "Time at Start of Scan
(TAI93)"
Unique Field
Definition: TOMS-Aura-Shared
Description: >
The TAI93 time (in s) at the start of the "scan".
- Field Name: ViewingAzimuthAngle
Data Type: HE5T_NATIVE_FLOAT
Dimensions: nTimes,nXtrack
Range or Valids:
Range is -180.0 to 180.0.
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d+00
Scale Factor: 1.0d+00
Units: deg(EastofNorth)
Data Source: L1B
Title: "Viewing Azimuth
Angle"
Unique Field
Definition: TOMS-Aura-Shared
Description: >
The viewing
azimuth angle (in deg) at the center of the ground
pixel.
- Field Name: ViewingZenithAngle
Data Type: HE5T_NATIVE_FLOAT
Dimensions:nTimes,nXtrack
Range or Valids:
Range is 0.0 to 70.0.
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d+00
Scale Factor: 1.0d+00
Units: deg
Data Source: L1B
Title: "Viewing Zenith
Angle"
Unique Field
Definition: TOMS-Aura-Shared
Description: >
The viewing zenith
angle (in deg) at the center of the ground pixel.
Data Fields:
- Field Name: AlgorithmFlag_PBL
Data Type: HE5T_NATIVE_UINT8
Dimensions: nTimes,nXtrack
Range or Valids: Range is 0 to 16.
Missing Value: 255
Offset: 0.0d+00
Scale Factor: 1.0d+00
Units: NoUnits
Data Source: PGE
Title: "Algorithm Flag for
PBL"
Unique Field
Definition: OMI-Specific
Description: >
The PBL processing
flag for each ground pixel, indicating the algorithm path:
0 - skipped
1 - linear fitting, vertical column SO2, short wavelength window
2 - linear fitting, vertical column SO2, long wavelength window
Add 10 for
snow/ice
- Field Name: AlgorithmFlag_TRL
Data Type: HE5T_NATIVE_UINT8
Dimensions: nTimes,nXtrack
Range or Valids: Range is 0 to 16.
Missing Value: 255
Offset: 0.0d+00
Scale Factor: 1.0d+00
Units: NoUnits
Data Source: PGE
Title: "Algorithm Flag for
TRL"
Unique Field Definition: OMI-Specific
Description: >
The TRL processing
flag for each ground pixel, indicating the algorithm path:
0 - skipped
1 - linear fitting, vertical column SO2, short wavelength window
2 - linear fitting, vertical column SO2, long wavelength window
Add 10 for
snow/ice
- Field Name: AlgorithmFlag_TRM
Data Type: HE5T_NATIVE_UINT8
Dimensions: nTimes,nXtrack
Range or Valids:
Range is 0 to 16.
Missing Value: 255
Offset: 0.0d+00
Scale Factor: 1.0d+00
Units: NoUnits
Data Source:PGE
Title: "Algorithm Flag for
TRM"
Unique Field
Definition: OMI-Specific
Description: >
The TRM processing
flag for each ground pixel, indicating the algorithm path:
0 - skipped
1 - linear fitting, vertical column SO2, short wavelength window
2 - linear fitting, vertical column SO2, long wavelength window
Add 10 for
snow/ice
- Field Name: AlgorithmFlag_STL
Data Type: HE5T_NATIVE_UINT8
Dimensions: nTimes,nXtrack
Range or Valids:
Range is 0 to 16.
Missing Value: 255
Offset: 0.0d+00
Scale Factor:1.0d+00
Units: NoUnits
Data Source: PGE
Title: "Algorithm Flag for
STL"
Unique Field
Definition: OMI-Specific
Description: >
The STL processing
flag for each ground pixel, indicating the algorithm path:
0 - skipped
1 - linear fitting, vertical column SO2, short wavelength window
2 - linear fitting, vertical column SO2, long wavelength window
Add 10 for
snow/ice
- Field Name: ChiSquare
Data Type: HE5T_NATIVE_FLOAT
Dimensions: nTimes,nXtrack
Range or Valids:
Range is 0 to 100.0.
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d+00
Scale Factor: 1.0d+00
Units: NoUnits
Data Source: PGE
Title: "Chi square of the
fitting residuals"
Unique Field
Definition: OMI-Specific
Description: The Chi square for STL from the
linear least square fit.
- Field Name:fc
Data Type: HE5T_NATIVE_FLOAT
Dimensions: nXtrack,nTimes
Minimum Value: 0.0
Maximum Value: 1.0
Missing Value: -1.2676506e+30
Offset: 0.0
Scale Factor: 1.0
Units: NoUnits
Data Source: PGE
Title: MLER Cloud Fraction
Unique Field
Definition: TOMS-OMI-Shared
Description: The MLER model parameter,
effective cloud fraction.
- Field Name: RadiativeCloudFraction
Data Type: HE5T_NATIVE_FLOAT
Dimensions: nTimes,nXtrack
Range or Valids:
Range is 0 to 1.0.
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d+00
Scale Factor: 1.0d+00
Units: NoUnits
Data Source: PGE
Title: "Effective Cloud
Fraction"
Unique Field
Definition: TOMS-OMI-Shared
Description: The effective cloud fraction.
- Field Name: CloudPressure
Data Type: HE5T_NATIVE_FLOAT
Dimensions: nXtrack,nTimes
Range or Valids:
Range is 0.0 to 1013.25
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d0
Scale Factor:1.0d0
Units: hPa
Data Source: PGE
Title: "Radiative Cloud
Pressure"
Unique Field
Definition: OMI-Specific
Description: >
The effective
cloud pressure associated with the ground pixel.
- Field Name: ColumnAmountO3
Data Type: HE5T_NATIVE_FLOAT
Dimensions: nXtrack,nTimes
Range or Valids:
Range is 50.0 to 700.0
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d0
Scale Factor: 1.0d0
Units: DU
Data Source: PGE
Title: "Best Total Ozone
Solution"
Unique Field
Definition: OMI-Specific
Description: >
The best retrieved
total column O3 from OMTO3.
- Field Name: deltaO3
Data Type: HE5T_NATIVE_FLOAT
Dimensions: nXtrack,nTimes
Range or Valids:
Range is -1000.0 to 1000.0
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d0
Scale Factor: 1.0d0
Units: DU
Data Source: PGE
Title: "adjustment to ColumnAmount O3 "
Unique Field
Definition: OMI-Specific
Description: >
The ozone
adjustment derived from fitting method.
- Field Name: ColumnAmountSO2_TRL
Data Type: HE5T_NATIVE_FLOAT
Dimensions: nXtrack,nTimes
Range or Valids:
Range is -10.0 to 2000.0
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d0
Scale Factor: 1.0d0
Units: DU
Data Source: PGE
Title: "Vertical Column
Amount SO2 (TRL)"
Unique Field
Definition: OMI-Specific
Description: >
The retrieved
vertical column amount SO2 with a prscribed SO2
profile
similar
to the standard ozone profile in Umkher layer 0
(roughly
between
0 and 5 KM altitude).
- Field Name: ColumnAmountSO2_TRM
Data Type: HE5T_NATIVE_FLOAT
Dimensions: nXtrack,nTimes
Range or Valids:
Range is -10.0 to 2000.0
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d0
Scale Factor: 1.0d0
Units: DU
Data Source: PGE
Title: "Vertical Column
Amount SO2 (TRM)"
Unique Field
Definition: OMI-Specific
Description: >
The retrieved
vertical column amount SO2 with a prscribed SO2
profile
similar
to the standard ozone profile in Umkher layer 1
(roughly
between
5 and 10 KM altitude).
- Field Name: ColumnAmountSO2_TRMbrd
Data Type: HE5T_NATIVE_FLOAT
Dimensions: nXtrack,nTimes
Range or Valids:
Range is -10.0 to 2000.0
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d0
Scale Factor: 1.0d0
Units: DU
Data Source: PGE
Title: "BRD Vertical Column
Amount SO2 (TRM)"
Unique Field
Definition: OMI-Specific
Description: >
The retrieved
vertical column amount SO2 with a prscribed SO2 profile
similar
to the standard ozone profile in Umkher layer 1
(roughly
between
5 and 10 KM altitude).
- Field Name: ColumnAmountSO2_STL
Data Type: HE5T_NATIVE_FLOAT
Dimensions: nXtrack,nTimes
Range or Valids:
Range is -10.0 to 2000.0
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d0
Scale Factor: 1.0d0
Units: DU
Data Source:PGE
Title:"Vertical Column
Amount SO2 (STL)"
Unique Field
Definition: OMI-Specific
Description: >
The retrieved
vertical column amount SO2 with a prscribed SO2
profile
similar
to the standard ozone profile in Umkher layer 3
(roughly
between
15 and 20 KM altitude).
- Field Name:ColumnAmountSO2_STLbrd
Data Type:HE5T_NATIVE_FLOAT
Dimensions: nXtrack,nTimes
Range or Valids:
Range is -10.0 to 2000.0
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d0
Scale Factor: 1.0d0
Units: DU
Data Source: PGE
Title: "BRD Vertical Column
Amount SO2 (STL)"
Unique Field
Definition: OMI-Specific
Description: >
The retrieved
vertical column amount SO2 with a prscribed SO2
profile
similar
to the standard ozone profile in Umkher layer 3
(roughly
between
15 and 20 KM altitude).
- Field Name: ColumnAmountSO2_PBL
Data Type: HE5T_NATIVE_FLOAT
Dimensions: nXtrack,nTimes
Range or Valids:
Range is -10.0 to 2000.0
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d0
Scale Factor: 1.0d0
Units: DU
Data Source:PGE
Unique Field
Definition: OMI-Specific
Description: >
The retrieved
vertical column amount SO2 with a boundary-layer
SO2 profile
averaged from in-situ aircraft measurments over
eastern
United States.
- Field Name: ColumnAmountSO2_PBLbrd
Data Type: HE5T_NATIVE_FLOAT
Dimensions: nXtrack,nTimes
Range or Valids:
Range is -10.0 to 2000.0
Missing Value: "-0X1P+100 (C language representation)"
Offset: 0.0d0
Scale Factor: 1.0d0
Units: DU
Data Source: PGE
Title: "BRD Vertical Column
Amount SO2 (PBL)"
Unique Field
Definition: OMI-Specific
Description: >
The retrieved
vertical column amount SO2 with a boundary-layer
SO2 profile
averaged from in-situ aircraft measurments over
eastern
United States.
- Field Name: deltaRefl
Data Type: HE5T_NATIVE_FLOAT
Dimensions: nXtrack,nTimes
Range or Valids:
Range is -1.0 to 1.0
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d0
Scale Factor: 1.0d0
Units: NoUnits
Data Source: PGE
Title: "adjustment to
reflectivity at 331nm"
Unique Field
Definition: OMI-Specific
Description: >
The reflectivity
vs wavelength is described by a second order polynomial,
R = R331 +
c1*(lambda-331) + c2 *(lambda-331)**2. The deltaRefl is
the
reflectivity adjustment to the zero-th order term,
R331.
- Field Name: dN_dSO2_TRM
Data Type: HE5T_NATIVE_FLOAT
Dimensions: nTimes,nXtrack,nWavel
Range or Valids:
Range is 0.0 to 10.
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d+00
Scale Factor: 1.0d+00
Units:1/DU
Data Source: PGE
Title: "Umkehr
Layer 1 SO2 Sensitivity Ratio, dN/dSO2"
Unique Field
Definition: TOMS-OMI-Shared
Description: Umkehr
Layer 1 SO2 sensitivity ratio, dN/dSO2.
- Field Name: dN_dSO2_STL
Data Type: HE5T_NATIVE_FLOAT
Dimensions:nTimes,nXtrack,nWavel
Range or Valids:
Range is 0.0 to 10.
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d+00
Scale Factor: 1.0d+00
Units: 1/DU
Data Source: PGE
Title: "Umkehr
Layer 3 SO2 Sensitivity Ratio, dN/dSO2"
Unique Field
Definition: TOMS-OMI-Shared
Description: Umkehr
Layer 3 SO2 sensitivity ratio, dN/dSO2.
- Field Name: dN_dSO2_TRL
Data Type: HE5T_NATIVE_FLOAT
Dimensions: nTimes,nXtrack,nWavel
Range or Valids:
Range is 0.0 to 10.
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d+00
Scale Factor: 1.0d+00
Units: 1/DU
Data Source: PGE
Title: "Umkehr
Layer 0 SO2 Sensitivity Ratio, dN/dSO2"
Unique Field
Definition: TOMS-OMI-Shared
Description: Umkehr
Layer 0 SO2 sensitivity ratio, dN/dSO2.
- Field Name: LayerEfficiency
Data Type: HE5T_NATIVE_FLOAT
Dimensions: nTimes,nXtrack,nLayers
Range or Valids:
Range is 0.0 to 10.0.
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d+00
Scale Factor: 1.0d+00
Units: NoUnits
Data Source: PGE
Title: "Algorithmic Layer
Efficiency"
Unique Field Definition: TOMS-OMI-Shared
Description: The algorithmic layer efficiency.
- Field Name: QualityFlags_PBL
Data Type: HE5T_NATIVE_UINT16
Dimensions: nTimes,nXtrack
Range or Valids:
Range is 0 to 65534.
Missing Value: 65535
Offset: 0.0d+00
Scale Factor:1.0d+00
Units: NoUnits
Data Source:PGE
Title: "Quality Flags for PBL"
Unique Field
Definition: OMI-Specific
Description: >
Each bit
correspond to a flag that is set to 0 for good value,
or 1 for bad value:
Bit 0 - SO2
consistency flag (0 for SO2 from 3 pairs are consistent, 1 for not)
Bit 1 - geometric
slant O3 column >= Threshold (currently set at 1500 D.U.)
Bit 2 - UV Aerosol
Index > 3
Bit 3 - Reflectivity
at 331 nm > 15 %
Bit 4 to 6 together
represents one number whose value ranging from 0 to 7
- it is equal to the first 4 bits of the OMTO3 QualityFalgs.
Bit 7 - Descending
Bit 8 - reflectivity
error
Bit 9 - geolocation
error
Bit 10 - L1B
warning, error, or missing
Bit 11 - set to
be same as bit 6 of the OMTO3 QualityFalgs
Bit 12 - set to
be same as bit 7 of the OMTO3 QualityFalgs
Bit 13 - place
holder, set to zero currently
Bit 14 - place
holder, set to zero currently
Bit 15 - place
holder, set to zero currently
- Field Name: QualityFlags_TRL
Data Type: HE5T_NATIVE_UINT16
Dimensions: nTimes,nXtrack
Range or Valids:
Range is 0 to 65534.
Missing Value: 65535
Offset: 0.0d+00
Scale Factor: 1.0d+00
Units: NoUnits
Data Source:PGE
Title: "Quality Flags for
TRL"
Unique Field
Definition: OMI-Specific
Description: >
Each bit
correspond to a flag that is set to 0 for good value,
or 1 for bad value:
Bit 0 - SO2
consistency flag (0 for SO2 from 3 pairs are consistent, 1 for not)
Bit 1 - geometric
slant O3 column >= Threshold (currently set at 1500 D.U.)
Bit 2 - UV Aerosol
Index > 3
Bit 3 - Reflectivity
at 331 nm > 15 %
Bit 4 to 6 together
represents one number whose value ranging from 0 to 7
- it is equal to the first 4 bits of the OMTO3 QualityFalgs.
Bit 7 - Descending
Bit 8 - reflectivity
error
Bit 9 - geolocation
error
Bit 10 - L1B
warning, error, or missing
Bit 11 - set to
be same as bit 6 of the OMTO3 QualityFalgs
Bit 12 - set to
be same as bit 7 of the OMTO3 QualityFalgs
Bit 13 - place
holder, set to zero currently
Bit 14 - place
holder, set to zero currently
Bit 15 - place
holder, set to zero currently
- Field Name: QualityFlags_TRM
Data Type: HE5T_NATIVE_UINT16
Dimensions: nTimes,nXtrack
Range or Valids:
Range is 0 to 65534.
Missing Value: 65535
Offset: 0.0d+00
Scale Factor: 1.0d+00
Units: NoUnits
Data Source: PGE
Title:"Quality Flags for
TRM"
Unique Field
Definition: OMI-Specific
Description: >
Each bit
correspond to a flag that is set to 0 for good value,
or 1 for bad value:
Bit 0 - SO2
consistency flag (0 for SO2 from 3 pairs are consistent, 1 for not)
Bit 1 - geometric
slant O3 column >= Threshold (currently set at 1500 D.U.)
Bit 2 - UV Aerosol
Index > 3
Bit 3 - Reflectivity
at 331 nm > 15 %
Bit 4 to 6 together
represents one number whose value ranging from 0 to 7
- it is equal to the first 4 bits of the OMTO3 QualityFalgs.
Bit 7 - Descending
Bit 8 - reflectivity
error
Bit 9 - geolocation
error
Bit 10 - L1B
warning, error, or missing
Bit 11 - set to
be same as bit 6 of the OMTO3 QualityFalgs
Bit 12 - set to
be same as bit 7 of the OMTO3 QualityFalgs
Bit 13 - place
holder, set to zero currently
Bit 14 - place
holder, set to zero currently
Bit 15 - place
holder, set to zero currently
- Field Name: QualityFlags_STL
Data Type: HE5T_NATIVE_UINT16
Dimensions: nTimes,nXtrack
Range or Valids:
Range is 0 to 65534.
Missing Value: 65535
Offset: 0.0d+00
Scale Factor: 1.0d+00
Units: NoUnits
Data Source: PGE
Title: "Quality Flags for
STL"
Unique Field
Definition: OMI-Specific
Description: >
Each bit correspond to a flag that is set to
0 for good value,
or 1 for bad value:
Bit 0 - SO2
consistency flag (0 for SO2 from 3 pairs are consistent, 1 for not)
Bit 1 - geometric
slant O3 column >= Threshold (currently set at 1500 D.U.)
Bit 2 - UV Aerosol
Index > 3
Bit 3 - Reflectivity
at 331 nm > 15 %
Bit 4 to 6 together
represents one number whose value ranging from 0 to 7
- it is equal to the first 4 bits of the OMTO3 QualityFalgs.
Bit 7 - Descending
Bit 8 - reflectivity
error
Bit 9 - geolocation
error
Bit 10 - L1B
warning, error, or missing
Bit 11 - set to
be same as bit 6 of the OMTO3 QualityFalgs
Bit 12 - set to
be same as bit 7 of the OMTO3 QualityFalgs
Bit 13 - place
holder, set to zero currently
Bit 14 - place
holder, set to zero currently
Bit 15 - place
holder, set to zero currently
- Field Name:Rlambda1st
Data Type: HE5T_NATIVE_FLOAT
Dimensions: nXtrack,nTimes
Range or Valids:
Range is -1.0 to 1.0
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d0
Scale Factor: 1.0d0
Units: NoUnits
Data Source: PGE
Title: "First order term of
the R-Lambda function"
Unique Field
Definition: OMI-Specific
Description: >
The reflectivity
vs wavelength is described by a second order polynomial,
R = R331 +
c1*(lambda-331) + c2 *(lambda-331)**2. Rlambda1st is
the first
order
coefficient c1.
- Field Name: Rlambda2nd
Data Type:HE5T_NATIVE_FLOAT
Dimensions: nXtrack,nTimes
Range or Valids:
Range is -1.0 to 1.0
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d0
Scale Factor: 1.0d0
Units: NoUnits
Data Source:PGE
Title: "Second order term of
the R-Lambda function"
Unique Field
Definition: OMI-Specific
Description:>
The reflectivity
vs wavelength is described by a second order polynomial,
R = R331 +
c1*(lambda-331) + c2 *(lambda-331)**2. Rlambda2nd is
the second
order
coefficient c2.
- Field Name: Reflectivity331
Data Type: HE5T_NATIVE_FLOAT
Dimensions: nXtrack,nTimes
Range or Valids:
Range is -15.0 to 115.0
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d0
Scale Factor: 1.0d0
Units: percent
Data Source: PGE
Title: "Effective Surface
Reflectivity at 331 nm"
Unique Field
Definition: OMI-Specific
Description:>
Effective surface
reflectivity of the surface at the center of
the
pixel.
- Field Name:Residual
Data Type: HE5T_NATIVE_FLOAT
Dimensions:nTimes,nXtrack,nWavel
Range or Valids:
Range is -150.0 to 150.0.
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d+00
Scale Factor: 1.0d+00
Units: NoUnits
Data Source: PGE
Title: "N-Value
Residual"
Description: The N-value residual from OMTO3.
- Field Name: ResidualAdjustment
Data Type: HE5T_NATIVE_FLOAT
Dimensions: nTimes,nXtrack,nWavel
Range or Valids:
Range is -50.0 to 50.0.
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d+00
Scale Factor:1.0d+00
Units: NoUnits
Data Source: PGE
Title: "N-Value Residual
Adjustment"
Unique Field
Definition: TOMS-OMI-Shared
Description:The N-value adjustment made to
OMTO3 residual.
- Field Name: SO2indexP1
Data Type:HE5T_NATIVE_FLOAT
Dimensions:nXtrack,nTimes
Range or Valids:
Range is -30.0 to 30.0
Missing Value:"-0X1P+100 (C language
representation)"
Offset: 0.0d0
Scale Factor:1.0d0
Units: NoUnits
Data Source: PGE
Title: "Pair 1 SO2
Index"
Unique Field
Definition: OMI-Specific
Description: >
The pair 1 (311.9
and 310.8 nm) SO2 Index.
- Field Name: SO2indexP2
Data Type: HE5T_NATIVE_FLOAT
Dimensions: nXtrack,nTimes
Range or Valids:
Range is -30.0 to 30.0
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d0
Scale Factor: 1.0d0
Units: NoUnits
Data Source: PGE
Title: "Pair 2 SO2
Index"
Unique Field
Definition: OMI-Specific
Description: >
The pair 2 (313.2
and 311.9 nm) SO2 Index.
- Field Name: SO2indexP3
Data Type: HE5T_NATIVE_FLOAT
Dimensions: nXtrack,nTimes
Range or Valids:
Range is -30.0 to 30.0
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d0
Scale Factor:1.0d0
Units: NoUnits
Data Source: PGE
Title: "Pair 3 SO2
Index"
Unique Field
Definition: OMI-Specific
Description: >
The pair 3 (314.4
and 313.2 nm) SO2 Index.
- Field Name: TerrainPressure
Data Type: HE5T_NATIVE_FLOAT
Dimensions: nXtrack,nTimes
Range or Valids:
Range is 0.0 to 2000.0
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d0
Scale Factor: 1.0d0
Units: hPa
Data Source: PGE
Title: "Terrain
Pressure"
Unique Field
Definition: OMI-Specific
Description: >
The terrain
pressure at the center of the ground pixel.
- Field Name: UVAerosolIndex
Data Type: HE5T_NATIVE_FLOAT
Dimensions: nTimes,nXtrack
Range or Valids:
Range is -50.0 to 50.0.
Missing Value: "-0X1P+100 (C language
representation)"
Offset: 0.0d+00
Scale Factor: 1.0d+00
Units: NoUnits
Data Source: PGE
Title: "UV Aerosol
Index"
Unique Field
Definition: TOMS-OMI-Shared
Description: >
The UV aerosol
index associated with the ground pixel.
Core Metadata:
- Metadata Name: AssociatedInstrumentShortName
Mandatory: T
Data Type: VA20
Number of
Values: 1
Range or Valids: Valid is
"OMI".
Data Source: MCF
Description: Actual is "OMI".
- Metadata Name: AssociatedPlatformShortName
Mandatory: T
Data Type: VA20
Number of
Values: 1
Range or Valids: Valid is
"Aura".
Data Source: MCF
Description: Actual is "Aura".
- Metadata Name: AssociatedSensorShortName
Mandatory: T
Data Type: VA20
Number of
Values: 1
Range or Valids: Valids are "CCD Ultra Violet" and "CCD
Visible".
Data Source: MCF
Description: Actual is "CCD Ultra Violet".
- Metadata Name: AutomaticQualityFlag
Mandatory: T
Data Type: VA64
Number of
Values: 1
Range or Valids: Valids are "Passed", "Suspect" and
"Failed".
Data Source: PGE
Description: >
A granule-level
quality flag that applies generally to the granule
and
specifically to the parameters at the granule level.
- Metadata Name: AutomaticQualityFlagExplanation
Mandatory: T
Data Type: VA255
Number of
Values: 1
Range or Valids: Not
applicable (free format).
Data Source: PGE
Description: >
The definitions of
"Passed", "Suspect" and "Failed" should go here.
- Metadata Name: DayNightFlag
Mandatory: T
Data Type:VA5
Number of
Values: 1
Range or Valids: Valids are "Day", "Night" and
"Both".
Data Source: MCF
Description: Actual is "Day".
- Metadata Name: EquatorCrossingDate
Mandatory: T
Data Type: D
Number of
Values:1
Range or Valids: Range is
"1995-01-01" to "2099-12-31".
Data Source: L1B
Description: >
The date of the
descending equator crossing in the granule.
- Metadata Name: EquatorCrossingLongitude
Mandatory:T
Data Type:LF
Number of
Values: 1
Range or Valids: Range is
-180.0d0 to 180.0d0.
Data Source: L1B
Description: >
The longitude of
the descending equator crossing in the granule.
- Metadata Name: EquatorCrossingTime
Mandatory: T
Data Type: T
Number of
Values: 1
Range or Valids: Range is
"01:00:0.000000" to "01:59:59.999999".
Data Source: L1B
Description: >
The time of the
descending equator crossing in the granule.
- Metadata Name: InputPointer
Mandatory: T
Data Type: VA255
Number of
Values: 0 to 10
Range or Valids: >
Valid file names,
each in double quotes, separated by commas, all
surrounded
by curved brackets.
Data Source: PGE
Description: >
A list of the input
files used to produce the OMSO2 product.
- Metadata Name: LocalGranuleID
Mandatory:T
Data Type: VA80
Number of
Values: 1
Range or Valids: >
Range is
"OMI-Aura_L2-OMSO2_1995m0101t0000-o00000_v001-1995m0101t000000.he5"
to
"OMI-Aura_L2-OMSO2_2099m1231t2359-o99999_v999-2099m1231t235959.he5".
Data Source: PGE
Description: >
Example is
"OMI-Aura_L2-OMSO2_2002m0630t2354-o21434_v001-2003m0515t181917.he5"
(see Appendix E of Reference 4).
- Metadata Name: LOCALVERSIONID
Mandatory: T
Data Type: VA60
Number of
Values: 1
Range or Valids: >
Valids are "RFC1321 MD5 = not yet calculated" and
"RFC1321 MD5
= [0-9,a-f]{32}"
Data Source: PCF
Description: >
MD5 fingerprint of
the HDF product file.
- Metadata Name: OperationalQualityFlag
Mandatory: T
Data Type:VA20
Number of
Values: 1
Range or Valids: >
Valids are "Passed", "Failed",
"Being Investigated", "Not Investigated",
"Inferred
Passed", "Inferred Failed" and "Suspect".
Data Source: L1B
Description: >
A granule-level
quality flag that applies generally to the granule
and
specifically to the parameters at the granule level.
- Metadata Name: OperationalQualityFlagExplanation
Mandatory: T
Data Type: VA255
Number of
Values: 1
Range or Valids: Not
applicable (free format).
Data Source: L1B
Description: >
The criteria for
setting the OperationalQualityFlag should be stated
here
(this Metadata will not appear in the granule).
- Metadata Name: OPERATIONMODE
Mandatory: T
Data Type:VA20
Number of
Values: 1
Range or Valids: >
Valids are "Calibration", "Diagnostic",
"Initialization", "Launch",
"Normal", "Roll", "Routine",
"Safe", "Solar Calibration", "Standby",
"Survival" and "Test".
Data Source: PCF
Description: Actual is "Test".
- Metadata Name: OrbitNumber
Mandatory: T
Data Type: I
Number of
Values: 1
Range or Valids: Range is 1
to 999999
Data Source: L1B
Description: The OMI orbit number.
- Metadata Name: ParameterName
Mandatory: T
Data Type: VA40
Number of
Values: 1
Range or Valids: Valid is
"Total Column Sulphur Dioxide".
Data Source: PGE
Description: >
The measured
science parameter expressed in the granule.
- Metadata Name: PGEVERSION
Mandatory: T
Data Type: VA10
Number of
Values: 1
Range or Valids: Range is
"0.0.0" to "9.9.99".
Data Source: PCF
Description: Actual is "1.2.0".
- Metadata Name: ProductionDateTime
Mandatory: T
Data Type: DT
Number of
Values: 1
Range or Valids: >
"2003-01-01T00:00:00.000Z" to
"2099-12-31T24:59:59.999Z"
Data Source: TK
Description: The date and time of the Level 2
processing.
- Metadata Name: QAPercentCloudCover
Mandatory: T
Data Type:I
Number of
Values: 1
Range or Valids: Range is 0
to 100
Data Source: PGE
Description: >
The percent of the
data in the granule that have cloud cover.
- Metadata Name: QAPercentInterpolatedData
Mandatory: T
Data Type: I
Number of
Values: 1
Range or Valids: Range is 0
to 100
Data Source: PGE
Description: >
The percent of the
data in the granule that are interpolated.
- Metadata Name: QAPercentMissingData
Mandatory: T
Data Type: I
Number of
Values: 1
Range or Valids: Range is 0
to 100.
Data Source: PGE
Description: >
The percent of the
data in the granule that are missing.
- Metadata Name: QAPercentOutofBoundsData
Mandatory: T
Data Type: I
Number of
Values: 1
Range or Valids: Range is 0
to 100.
Data Source: PGE
Description: >
The percent of the
data in the granule that are out of bounds data.
- Metadata Name: RangeBeginningDate
Mandatory: T
Data Type: D
Number of
Values: 1
Range or Valids: Range is
"1995-01-01" to "2099-12-31".
Data Source: L1B
Description: The year, month and day when the granule
began.
- Metadata Name: RangeBeginningTime
Mandatory: T
Data Type: T
Number of
Values: 1
Range or Valids: Range is
"00:00:00.000000" to "23:59:59.999999".
Data Source: L1B
Description: >
The hour, minute,
second and fraction of a second when the granule
began.
- Metadata Name: RangeEndingDate
Mandatory: T
Data Type: D
Number of
Values: 1
Range or Valids: Range is
"1995-01-01" to "2099-12-31".
Data Source: L1B
Description: The year, month and day when the granule
ended.
- Metadata Name: RangeEndingTime
Mandatory: T
Data Type: T
Number of
Values: 1
Range or Valids: Range is
"00:00:00.000000" to "23:59:59.999999".
Data Source: L1B
Description: >
The hour, minute,
second and fraction of a second when the granule
ended.
- Metadata Name: REPROCESSINGACTUAL
Mandatory: T
Data Type: VA20
Number of
Values: 1
Range or Valids: >
Valids are "processed 1 time", "processed 2
times", etc...
Data Source: PCF
Description: >
An indication of
what reprocessing has been performed on the granule.
- Metadata Name: ReprocessingPlanned
Mandatory: T
Data Type: VA45
Number of
Values: 1
Range or Valids: >
Valids are "no further update anticipated",
"further update is anticipated"
and
"further update anticipated using enhanced PGE".
Data Source: DP
Description: Actual is "further update is
anticipated".
- Metadata Name: ScienceQualityFlag
Mandatory: T
Data Type: VA20
Number of
Values: 1
Range or Valids: >
Valids are "Passed", "Failed",
"Being Investigated", "Not Investigated",
"Inferred
Passed", "Inferred Failed" and "Suspect".
Data Source: DP
Description: Actual is "Not Investigated".
- Metadata Name: ScienceQualityFlagExplanation
Mandatory: T
Data Type:VA255
Number of
Values: 1
Range or Valids: Not
applicable (free format).
Data Source: DP
Description: >
An explanation of
the criteria used to set the science quality flag
should
go here.
- Metadata Name: ShortName
Mandatory: T
Data Type: VA8
Number of
Values: 1
Range or Valids: Valid is
"OMSO2".
Data Source: MCF
Description: Actual is "OMSO2".
- Metadata Name: SizeMBECSDataGranule
Mandatory: F
Data Type: LF
Number of
Values: 1
Range or Valids: Range is
0.00d+00 to 1.00d+04.
Data Source: DSS
Description: >
The volume of data
contained in the granule in Mb (this Metadata
will
not appear in the granule).
- Metadata Name: VersionID
Mandatory: T
Data Type: SI
Number of
Values: 1
Range or Valids: Range is 0
to 999.
Data Source: MCF
Description: Actual is 1 for test and pre-launch.
Product Specific Attributes:
# - Metadata Name:
AverageCloudCover
# Mandatory: T
# Data Type: F
# Number of
Values: 1
# Range or Valids: Range is
0.0 to 100.0.
# Data Source: PGE
# Description: >
# Indicates the average cloud cover of the scene.
# - Metadata Name:
ClearSceneFlag
# Mandatory: T
# Data Type: VA6
# Number of
Values: 1
# Range or Valids: Valids are "clear" and "cloudy".
# Data Source: PGE
# Description: >
# This flag indicates whether the scene is "clear"
or "cloudy".
- Metadata Name: EndBlockNr
Mandatory: T
Data Type: SI
Number of
Values: 1 to 500
Range or Valids: Range is 1
to 50.
Data Source: L1B
Description: The number of the NOSE end block along
the track.
# - Metadata Name:
EndPollLatitude
# Mandatory: T
# Data Type: F
# Number of
Values: 1
# Range or Valids: Range is
-90.0 to 90.0.
# Data Source: PGE
# Description: >
# Indicates the ending bounding latitude of the pollution
activity.
# - Metadata Name:
EndVolLatitude
# Mandatory: T
# Data Type: F
# Number of
Values: 1
# Range or Valids: Range is
-90.0 to 90.0.
# Data Source: PGE
# Description: >
# Indicates the ending bounding latitude of the volcanic
activity.
# - Metadata Name:
ExpeditedData
# Mandatory: T
# Data Type: VA10
# Number of
Values: 1
# Range or Valids: Valids are "TRUE" and "FALSE".
# Data Source: L1B
# Description: The indicator for expedited L0 data.
# - Metadata Name:
ExposureTimes
# Mandatory: T
# Data Type: F
# Number of
Values: 1 to 256
# Range or Valids: Range is
0.0 to 2000.0.
# Data Source: L1B
# Description: >
# An array containing the exposure times in seconds used for
the
# measurements.
# - Metadata Name:
InstrumentConfigurationIDs
# Mandatory: T
# Data Type: SI
# Number of
Values: 1 to 256
# Range or Valids: Range is 0
to 255.
# Data Source: L1B
# Description: >
# An array containing the instrument configuration identifiers
used
# for the measurements.
# - Metadata Name:
MasterClockPeriods
# Mandatory: T
# Data Type: F
# Number of
Values: 1 to 128
# Range or Valids: Range is
0.0 to 10.0.
# Data Source: L1B
# Description: >
# An array containing the master clock periods in seconds used
for
# the measurements.
# - Metadata Name:
NrMeasurements
# Mandatory: T
# Data Type: I
# Number of
Values: 1
# Range or Valids: Range is 0
to 9999.
# Data Source: L1B
# Description: >
# The number of measurements in the granule (per output
product).
# - Metadata Name:
NrSpatialZoom
# Mandatory: T
# Data Type: I
# Number of
Values: 1
# Range or Valids: Range is 0
to 9999.
# Data Source: L1B
# Description: The number of measurements in spatial
zoom mode.
# - Metadata Name:
NrSpectralZoom
# Mandatory: T
# Data Type: I
# Number of
Values: 1
# Range or Valids: Range is 0
to 9999.
# Data Source: L1B
# Description: The number of measurements in spectral
zoom mode.
# - Metadata Name:
NrZoom
# Mandatory: T
# Data Type: I
# Number of
Values: 1
# Range or Valids: Range is 0
to 9999.
# Data Source: L1B
# Description: The number of measurements in zoom
modes.
- Metadata Name: PathNr
Mandatory: T
Data Type: I
Number of
Values: 1 to 500
Range or Valids: Range is 1
to 466.
Data Source: L1B
Description: Number of the NOSE path within the
repeat cycle.
# - Metadata Name:
PollutionActivityFlag
# Mandatory: T
# Data Type: VA4
# Number of
Values: 1
# Range or Valids: Valids are "yes" and "none".
# Data Source: PGE
# Description: >
# This flag indicates whether the retrieved total column
amount SO2
# indicates
pollution activity. Examples are
"yes" or "none".
- Metadata Name: SolarEclipse
Mandatory: T
Data Type: VA10
Number of
Values: 1
Range or Valids: Valids are "TRUE" and "FALSE".
Data Source: L1B
Description: >
The indicator that
during part of the measurements a solar eclipse
occurred.
- Metadata Name: SouthAtlanticAnomalyCrossing
Mandatory: T
Data Type: VA10
Number of
Values: 1
Range or Valids: Valids are "TRUE" and "FALSE".
Data Source: L1B
Description: >
The indicator that
during part of the measurements the spacecraft
was
in the SAA.
# - Metadata Name:
SpacecraftManeuverFlag
# Mandatory: T
# Data Type: VA10
# Number of
Values: 1
# Range or Valids: Valids are "TRUE", "FALSE" and
"UNKNOWN".
# Data Source: L1B
# Description: >
# The indicator that during part of the measurements the
spacecraft
# was performing a
maneuver.
- Metadata Name: StartBlockNr
Mandatory: T
Data Type:SI
Number of
Values: 1 to 500
Range or Valids: Range is 1
to 50.
Data Source: L1B
Description: Number of the NOSE start block along the
track.
# - Metadata Name:
StartPollLatitude
# Mandatory: T
# Data Type: F
# Number of
Values: 20
# Range or Valids: Range is
-90.0 to 90.0.
# Data Source: PGE
# Description: >
# Indicates the starting bounding latitude of the pollution
activity.
# - Metadata Name:
StartVolLatitude
# Mandatory: T
# Data Type: F
# Number of
Values: 20
# Range or Valids: Range is
-90.0 to 90.0.
# Data Source: PGE
# Description: >
# Indicates the starting bounding latitude of the volcanic
activity.
# - Metadata Name:
VolcanicActivityFlag
# Mandatory:T
# Data Type: VA4
# Number of
Values: 1
# Range or Valids: Valids are "yes" and "none".
# Data Source: PGE
# Description: >
# This flag indicates whether the retrieved total column
amount SO2
# indicates
volcanic activity. Examples are
"yes" or "none".
Archived Metadata:
- Metadata Name: ESDTDescriptorRevision
Mandatory: T
Data Type:VA20
Number of
Values: 1
Range or Valids: Range is
"0.0.0" to "9.9.99".
Data Source: MCF
Description: >
This is the
version of the ESDT descriptor file as determined by ECS.
- Metadata Name: LongName
Mandatory:T
Data Type: VA80
Number of
Values: 1
Range or Valids: >
Valid is
"OMI/Aura Sulphur Dioxide (SO2) Total Column 1-Orbit L2 Swath 13x24
km".
Data Source: MCF
Description: >
Actual is
"OMI/Aura Sulphur Dioxide (SO2) Total Column 1-Orbit L2 Swath 13x24
km"
(see Section 7.0 of Reference 3).
References: >
1. "Retrieval
of large volcanic SO2 columns from the Aura Ozone Monitoring Instrument(OMI)
comparison and limitations"
(Yang, K., N.A. Krotkov, A.J. Krueger, S.A. Carn,
P.K. Bhartia, P.F. Levelt,
J. Geophys. Res., 112, D24S43, doi:10.1029/2007JD008825.OMI,
2007)
2. "A fast and
sensitive new satellite SO2 retrieval algorithm based on principal component
analysis Application to the Ozone Monitoring
Instrument"
(Li, C., J.
Joiner, N. A. Krotkov, and P. K. Bhartia,
Geophys. Res. Lett., 40, doi:10.1002/2013GL058134, 2013).
3. "A File
Format for Satellite Atmospheric Chemistry Data Based on Aura File Format
Guidelines"
(Craig, C., Veefkind, P., Leonard, P., Wagner, P., Vuu,
C., and Shepard, D.
ESDS-RCF-009,
May 2008)
4. "OMI Science
Software Delivery Guide for Version 0.9"
(OMI-SSDG-0.9.9,
Version 0.9.9, 21 October 2003)
5. "OMI GDPS Input/Output Data Specification (IODS) Volume 2"
(OMI-GDPS-IODS-2,
SD-OMIE-7200-DS-467, 9 April 2003)
6. "Release 6A
Implementation Earth Science Data Model for the ECS Project"
(420-TP-022-002,
June 2001)
(http://edhs1.gsfc.nasa.gov/waisdata/rel6/html/tp4202202.html
and
http://edhs1.gsfc.nasa.gov/waisdata/rel6/html/tp42022_adds.html)