Gap analyses by variable or by type of mission

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

Instrument types
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 resolution;
  • the scanning mode.(cross-nadir, limb).

 

RATING CRITERIA:

1

  • High-resolution UV spectrometer

2

  • Medium-resolution UV spectrometer

3

  • UV spectrometer scanning the limb mechanically or electronically

4

  • UV spectrometer limb scanning by star occultation

5

  • UV spectrometer limb scanning by solar occultation
Measurement timeline for HCHO

Definition:

HCHO Mole Fraction: 3D field of amount of HCHO (Formaldehyde, 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 37 results

This table has a large number of results.
HideShow inactive instruments
Instrument NRT? Relevance Satellite Orbit
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GEMS1 - primaryGEO-KOMPSAT-2B128.2°E
X
XXXXXXXXXXX
TEMPO1 - primaryTEMPO100°WXXXXXXXX
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
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
XXXXXXXXXXXXXXXX
OMPS-nadirYes2 - very highSNPP13:25 asc
X
XXXXXXXXX
OMPS-nadir2 - very highJPSS-313:30 ascXXXXXXXX
OMPS-nadir2 - very highJPSS-413:30 ascXXXXXXXX
OMPS-nadirYes2 - very highNOAA-2013:25 asc
X
XXXXXXX
OMPS-nadir2 - very highJPSS-213:30 ascXXXXXXXX
OMS-nadir2 - very highFY-3H14:00 ascXXXXXX
Sentinel-52 - very highMetop-SG-A109:30 descXXXXXXXX
Sentinel-52 - very highMetop-SG-A209:30 descXXXXXXXX
Sentinel-52 - very highMetop-SG-A309:30 descXXXXXXXX
TROPOMI2 - very highSentinel-5P13:30 asc
X
XXXXXXX
ACS-limb3 - highMeteor-MP N115:30 ascXXXXXXXX
ACS-limb3 - highMeteor-MP N209:30 descXXXXXXXX
SCIAMACHY-limb3 - highEnvisat10:00 desc
X
XXXXXXXXX
X
OMPS-limbYes3 - highSNPP13:25 asc
X
XXXXXXXXX
OMPS-limb3 - highJPSS-313:30 ascXXXXXXXX
OMPS-limb3 - highJPSS-413:30 ascXXXXXXXX
OMPS-limb3 - highJPSS-213:30 ascXXXXXXXX
OMS-limb3 - highFY-3H14:00 ascXXXXXX
OSIRISNo3 - highOdin06:00 desc
X
XXXXXXXXXXXXXXXXXXXXX
GOMOS Important note4 - fairEnvisat10:00 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
XXXXX
All instruments for measuring HCHO
Instruments Relevance Operational limitations
GEMS1 - primary
TEMPO1 - primary
EMI1 - primary
GOME1 - primary
GOME-21 - primary
SCIAMACHY-nadir1 - primary
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
ACS-limb3 - high
SCIAMACHY-limb3 - high
OMPS-limb3 - high
OMS-limb3 - high
OSIRIS3 - high
GOMOS4 - fair
MAESTRO5 - marginal
SAGE-II5 - marginal
SAGE-III5 - marginal