Gap analyses by variable or by type of mission or by WIGOS subcomponent

Please select either a variable or a type of mission to display a time chart of satellite instruments having the potential to provide the corresponding measurements. The selection is based on design characteristics (Expert analysis) or declared mission objectives (Simplified analysis). Such a preliminary analysis does not replace a detailed assessment of the actual instrument performances, data availability, and quality of derived environmental data records against specific user requirements.

Note: The chart can be sorted by clicking on the header columns and filtered by instrument properties when applicable. Select the period of interest with the cursor at the bottom of the chart. Future missions which are not firmly planned are shaded with stripes. A warning icon (Important note) indicates degraded satellite: hover over the icon for details. The chart is followed by a table of all potentially relevant instruments.

Select a variable

or select a type of mission

Select WIGOS subcomponents

Analysis
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In "Simplified" mode, the results in the analysis are calculated by looking at each instrument's mission objectives: for each instrument we keep track of what the primary, secondary, and opportunity mission objectives are. These mission objectives indicate that an instrument is primarily envisioned to measure variable X, Y and Z, that variables A, B and C are its secondary objective, and that it may offer the opportunity to measure variables I and II although it is not optimized for that. The simplified Gap analysis produces a timeline based on this information. The simplified Gap analysis is only available for analyzing variables, not for missions.
In "Expert system" mode, the results in the analysis are calculated with an expert system. Internally, OSCAR works with a large set of 1700 rules that determine whether or not an instrument is capable of measuring a given variable, and to what degree. When you select "Expert system", the Gap analysis is performed based on this large set of rules.

Variable sorting criteria

 

Each instrument is assigned with a 5-step rating, evaluated as a blend of several elements such as the uncertainty, the vertical resolution, and the frequency and spatial resolution of the retrieved measurement in comparison with the space-time variability of the geophysical parameter.  For this particular Variable, the rating is driven by:

  • the spectral band and resolution;
  • the scanning mode (cross-nadir, limb).

 

RATING CRITERIA:

1

  • High-resolution TIR spectrometer
  • High-resolution UV spectrometer

2

  • Medium-resolution TIR spectrometer
  • Medium-resolution UV spectrometer

3

  • Coarse-resolution TIR spectrometer

4

  • Mm-submm spectrometer
  • TIR spectrometer scanning the limb mechanically or electronically

5

  • UV spectrometer limb scanning by star occultation
  • UV spectrometer limb scanning by solar occultation
  • TIR spectrometer limb scanning by solar occultation
Measurement timeline for SO2

Definition:

3D field of amount of SO2 (Sulfur dioxide, expressed in moles) divided by the total amount of all constituents in dry air (also expressed in moles)

Hint: Move around in the timeline by scrolling up, down, left or right.

Found 89 results

This table has a large number of results.
Hide inactive instruments
Instrument NRT? Relevance Satellite Orbit
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
IASI-NG1 - primaryMetop-SG-A209:30 descXXXXXXXX
IASI-NG1 - primaryMetop-SG-A309:30 descXXXXXXXX
IASI-NG1 - primaryMetop-SG-A109:30 descXXXXXXXX
TES-nadir Important note1 - primaryAura13:45 asc
X
XXXXXXXXXXXXX
X
IMG1 - primaryADEOS10:30 desc
X
X
IASIYes1 - primaryMetop-A08:46 desc
X
XXXXXXXXXXXXXXX
IASIYes1 - primaryMetop-B09:30 desc
X
XXXXXXXXXXXX
IASI1 - primaryMetop-C09:30 desc
X
XXXXXXXXX
IKFS-31 - primaryMeteor-MP N115:30 ascXXXXXXXX
IKFS-31 - primaryMeteor-MP N209:30 descXXXXXXXX
TANSO-FTSNo1 - primaryGOSAT13:00 desc
X
XXXXXXXXXXXX
TANSO-FTS/21 - primaryGOSAT-213:00 desc
X
XXXXX
GEMS1 - primaryGEO-KOMPSAT-2B128.2°E
X
XXXXXXXXXXX
TEMPO1 - primaryTEMPO100°W
X
XXX
EMI1 - primaryGF-513:30 asc
X
XXXXXXXX
GOME1 - primaryERS-210:30 desc
X
XXXXXXXXXXXXXXX
X
GOME-2Yes1 - primaryMetop-A08:46 desc
X
XXXXXXXXXXXXXXX
GOME-2Yes1 - primaryMetop-B09:30 desc
X
XXXXXXXXXXXX
GOME-21 - primaryMetop-C09:30 desc
X
XXXXXXXXX
SCIAMACHY-nadir1 - primaryEnvisat10:00 desc
X
XXXXXXXXX
X
IRFS-GS2 - very highElectro-M N114.5°WXXXXXXXXXXX
IRFS-GS2 - very highElectro-M N276°EXXXXXXXXXXX
IRFS-GS2 - very highElectro-M N3165.8°EXXXXXXXXXXX
IRS2 - very highMTG-S1XXXXXXXXX
IRS2 - very highMTG-S2XXXXXXXXX
IKFS-22 - very highMeteor-M N209:30 asc
X
XXXXXXX
IKFS-22 - very highMeteor-M N2-115:09 asc
X
IKFS-22 - very highMeteor-M N2-215:00 asc
X
IKFS-22 - very highMeteor-M N2-309:00 descXXXXXX
IKFS-22 - very highMeteor-M N2-415:00 ascXXXXXX
IKFS-22 - very highMeteor-M N2-515:00 descXXXXXX
IKFS-22 - very highMeteor-M N2-609:00 ascXXXXXX
FORUM2 - very highFORUM09:30 descXXXX
Sentinel-42 - very highMTG-S1XXXXXXXXX
Sentinel-42 - very highMTG-S2XXXXXXXXX
ACS-nadir2 - very highMeteor-MP N115:30 ascXXXXXXXX
ACS-nadir2 - very highMeteor-MP N209:30 descXXXXXXXX
OMI 2 - very highAura13:45 asc
X
XXXXXXXXXXXXXXXXXXX
OMPS-nadirYes2 - very highNOAA-2013:25 asc
X
XXXXXXX
OMPS-nadir2 - very highJPSS-213:30 ascXXXXXXXX
OMPS-nadirYes2 - very highSNPP13:25 asc
X
XXXXXXXXXX
OMPS-nadir2 - very highJPSS-313:30 ascXXXXXXXX
OMPS-nadir2 - very highJPSS-413:30 ascXXXXXXXX
OMS-nadir2 - very highFY-3F10:00 descXXXXXX
Sentinel-52 - very highMetop-SG-A209:30 descXXXXXXXX
Sentinel-52 - very highMetop-SG-A309:30 descXXXXXXXX
Sentinel-52 - very highMetop-SG-A109:30 descXXXXXXXX
TROPOMI Important note2 - very highSentinel-5P13:30 asc
X
XXXXXXX
GIIRSYes3 - highFY-4A104.7°E
X
XXXXX
GIIRS3 - highFY-4B123.5°E
X
XXXXXXX
GIIRS3 - highFY-4C86.5°E
X
XXXXXXX
GIIRS3 - highFY-4D105°EXXXXXXXX
GIIRS3 - highFY-4E86.5°EXXXXXXXX
GIIRS3 - highFY-4F105°EXXXXXXXX
GIIRS3 - highFY-4G86.5°EXXXXXXXX
AIRSYes3 - highAqua13:30 asc
X
XXXXXXXXXXXXXXXXXXXXX
CrISYes3 - highNOAA-2013:25 asc
X
XXXXXXX
CrIS3 - highJPSS-213:30 ascXXXXXXXX
CrIS Important noteYes3 - highSNPP13:25 asc
X
XXXXXXXXXX
CrIS3 - highJPSS-313:30 ascXXXXXXXX
CrIS3 - highJPSS-413:30 ascXXXXXXXX
HIRASYes3 - highFY-3D13:29 asc
X
XXXXX
HIRAS-23 - highFY-3E05:30 descXXXXXX
HIRAS-23 - highFY-3H14:00 ascXXXXXX
HIRAS-23 - highFY-3F10:00 descXXXXXX
HIRAS-23 - highFY-3I05:30 descXXXXXX
MLS (EOS-Aura)4 - fairAura13:45 asc
X
XXXXXXXXXXXXXXXXXXX
SMRNo4 - fairOdin06:42 desc
X
XXXXXXXXXXXXXXXXXXXXX
ACS-limb4 - fairMeteor-MP N115:30 ascXXXXXXXX
ACS-limb4 - fairMeteor-MP N209:30 descXXXXXXXX
SCIAMACHY-limb4 - fairEnvisat10:00 desc
X
XXXXXXXXX
X
OMPS-limb4 - fairJPSS-213:30 ascXXXXXXXX
OMPS-limbYes4 - fairSNPP13:25 asc
X
XXXXXXXXXX
OMPS-limb4 - fairJPSS-313:30 ascXXXXXXXX
OMPS-limb4 - fairJPSS-413:30 ascXXXXXXXX
OMS-limb4 - fairFY-3F10:00 descXXXXXX
OSIRISNo4 - fairOdin06:42 desc
X
XXXXXXXXXXXXXXXXXXXXX
MIPAS4 - fairEnvisat10:00 desc
X
XXXXXXXXX
X
TES-limb Important note4 - fairAura13:45 asc
X
XXXXXXXXXXXXX
X
CLAES4 - fairUARS57 °
X
XXXXXXXXXXXXX
X
ILAS-II4 - fairADEOS-210:30 desc
X
X
GOMOS Important note5 - marginalEnvisat10:00 desc
X
XXXXXXXX
X
MAESTRO Important note5 - marginalSCISAT-173.9 °
X
XXXXXXXXXXXXXXXXXXXXX
SAGE-II5 - marginalERBS57 °
X
XXXXXXXXXXXXXXXXXXXX
X
SAGE-III5 - marginalMeteor-3M09:15 asc
X
XXXX
X
SAGE-III5 - marginalISS SAGE-III51.6 °
X
XXXXXXXXX
ACE-FTS5 - marginalSCISAT-173.9 °
X
XXXXXXXXXXXXXXXXXXXXX
AIUS5 - marginalGF-513:30 asc
X
XXXXXXXX
ILAS-I5 - marginalADEOS10:30 desc
X
X
All instruments for measuring SO2
Instruments Relevance Operational limitations
IASI-NG1 - primary
TES-nadir1 - primary
IMG1 - primary
IASI1 - primary
IKFS-31 - primary
TANSO-FTS1 - primary
TANSO-FTS/21 - primary
GEMS1 - primary
TEMPO1 - primary
EMI1 - primary
GOME1 - primary
GOME-21 - primary
SCIAMACHY-nadir1 - primary
IRFS-GS2 - very high
IRS2 - very high
IKFS-22 - very high
FORUM2 - very high
IR spectrometer2 - very high
Sentinel-42 - very high
ACS-nadir2 - very high
OMI 2 - very high
OMPS-nadir2 - very high
OMS-nadir2 - very high
Sentinel-52 - very high
TROPOMI2 - very high
UVAS2 - very high
GIIRS3 - high
AIRS3 - high
CrIS3 - high
HIRAS3 - high
HIRAS-23 - high
MLS (EOS-Aura)4 - fair
SMR4 - fair
ACS-limb4 - fair
SCIAMACHY-limb4 - fair
OMPS-limb4 - fair
OMS-limb4 - fair
OSIRIS4 - fair
MIPAS4 - fair
TES-limb4 - fair
CLAES4 - fair
ILAS-II4 - fair
GOMOS5 - marginal
MAESTRO5 - marginal
SAGE-II5 - marginal
SAGE-III5 - marginal
ACE-FTS5 - marginal
AIUS5 - marginal
ILAS-I5 - marginal