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

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.
Measurement timeline for Soil moisture (in the roots region)

Definition:

Sub-soil 3D field of the fractional content of water in a volume of wet soil. Requested from surface down to ~ 3 m

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

Found 61 results

Instrument NRT? Relevance Satellite Orbit
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Aquarius2 - very highSAC-D06:00 desc
X
XXX
X
MIRAS2 - very highSMOS06:00 asc
X
XXXXXXXX
SMAP Important noteNo2 - very highSMAP06:00 desc
X
XXX
SAR-P2 - very highBIOMASS06:00 descXXXXXX
WindRAD3 - highFY-3E06:00 descXXXXXX
WindRAD3 - highFY-3H06:00 descXXXXXXXX
SAR-Travers3 - highResurs-O1-110:15 asc
X
X
AMI-SCAT4 - fairERS-110:30 desc
X
XXXXXXXX
X
AMI-SCAT4 - fairERS-210:30 desc
X
XXXXXXXXXXXXXXX
X
ASCATYes4 - fairMetop-A09:30 desc
X
XXXXXXXXXXX
ASCATYes4 - fairMetop-B09:30 desc
X
XXXXXX
ASCAT4 - fairMetop-C09:30 descXXXXXXX
SCA (Scatterometer)4 - fairMetop-SG-B109:30 descXXXXXXXX
SCA (Scatterometer)4 - fairMetop-SG-B209:30 descXXXXXXXX
SCA (Scatterometer)4 - fairMetop-SG-B309:30 descXXXXXXXX
AMSR4 - fairADEOS-210:30 desc
X
X
AMSR-2No4 - fairGCOM-W113:30 asc
X
XXXXX
AMSR-24 - fairGCOM-W213:30 ascXXXXXX
AMSR-24 - fairGCOM-W313:30 ascXXXXXX
AMSR-E Important noteNo4 - fairAqua13:30 asc
X
XXXXXXXX
X
Delta-2D4 - fairOkean-O-182.5 °
X
X
MSMR4 - fairOceanSat-1 (IRS-P4)12:00 desc
X
XXXXXXXXXX
X
MTVZA-GY-MP4 - fairMeteor-MP N115:30 ascXXXXXXXX
MTVZA-GY-MP4 - fairMeteor-MP N209:30 descXXXXXXXX
MTVZA-OK (MW)4 - fairSICH-1M82.5 °
X
X
X
MWI (HY-2A)4 - fairHY-2A06:00 desc
X
XXXX
X
MWI (HY-2A)4 - fairHY-2B06:00 descXXXXXX
SHF4 - fairMeteor-P181.2 °
X
X
X
SHF4 - fairMeteor-P281.2 °
X
X
X
SHF4 - fairMeteor-P310:15 asc
X
X
X
SHF4 - fairMeteor-P610:15 asc
X
X
X
SMMR4 - fairNimbus-712:00 desc
X
XXXXXXXXXXXXXXX
X
SMMR4 - fairSeaSat108 °
X
WindSat Important noteNo4 - fairCoriolis06:00 desc
X
XXXXXXXXXXXXXX
PALSAR4 - fairALOS10:30 desc
X
XXXX
X
PALSAR-2No4 - fairALOS-212:00 desc
X
XXXXX
SAR4 - fairSeaSat108 °
X
SAR (JERS)4 - fairJERS10:45 desc
X
XXXXX
X
SAR-L4 - fairSAOCOM-1A06:00 ascXXXXXX
SAR-L4 - fairSAOCOM-1B06:00 ascXXXXXX
SAR-L4 - fairSAOCOM-2A06:00 ascXXXXXX
SAR-L4 - fairSAOCOM-2B06:00 ascXXXXXX
SAR-L (NISAR)4 - fairNI-SAR06:00 ascXXXXXX
SAR-10 Important note4 - fairKondor-E174.75 °
X
XXXXX
SAR-104 - fairKondor-E74.75 °
X
X
SAR-S Important note4 - fairHJ-1C06:00 desc
X
XXXXX
SAR-S (NISAR) 4 - fairNI-SAR06:00 ascXXXXXX
AMI-SAR5 - marginalERS-110:30 desc
X
XXXXXXXX
X
AMI-SAR5 - marginalERS-210:30 desc
X
XXXXXXXXXXXXXXX
X
ASAR5 - marginalEnvisat10:00 desc
X
XXXXXXXXX
X
R6005 - marginalOkean-O-182.5 °
X
X
SAR (RadarSat-1)5 - marginalRadarSat-106:00 desc
X
XXXXXXXXXXXXXXXXX
X
SAR (RadarSat-1)No5 - marginalRadarSat-206:00 desc
X
XXXXXXXXXX
SAR RCM5 - marginalRCM-106:00 descXXXXXXXX
SAR RCM5 - marginalRCM-206:00 descXXXXXXXX
SAR RCM5 - marginalRCM-306:00 descXXXXXXXX
SAR-C (GF-3)5 - marginalGF-306:00 desc
X
XXXXXXXX
SAR-C (RISAT)5 - marginalRISAT-106:00 desc
X
XXXXX
SAR-C (RISAT)5 - marginalRISAT-1A06:00 descXXXXX
SAR-C (Sentinel-1)No5 - marginalSentinel-1A06:00 desc
X
XXXXXXX
SAR-C (Sentinel-1)5 - marginalSentinel-1B06:00 desc
X
XXXXXXX
All instruments for measuring Soil moisture (in the roots region)
Instruments Relevance Operational limitations
Aquarius2 - very highCoarse spatial resolution..
MIRAS2 - very highCoarse spatial resolution..
SMAP2 - very highCoarse spatial resolution..
SAR-P2 - very highInfrequent coverage..
WindRAD3 - highCoarse spatial resolution.. Affected by vegetation..
SAR-Travers3 - highInfrequent coverage..
AMI-SCAT4 - fairCoarse spatial resolution.. Affected by vegetation..
ASCAT4 - fairCoarse spatial resolution.. Affected by vegetation..
SCA (Scatterometer)4 - fairCoarse spatial resolution.. Affected by vegetation..
AMSR4 - fairCoarse spatial resolution.. Affected by vegetation..
AMSR-24 - fairCoarse spatial resolution.. Affected by vegetation..
AMSR-E4 - fairCoarse spatial resolution.. Affected by vegetation..
Delta-2D4 - fairCoarse spatial resolution.. Affected by vegetation..
MIS4 - fairCoarse spatial resolution.. Affected by vegetation..
MSMR4 - fairCoarse spatial resolution.. Affected by vegetation..
MTVZA-GY-MP4 - fairCoarse spatial resolution.. Affected by vegetation..
MTVZA-OK (MW)4 - fairCoarse spatial resolution.. Affected by vegetation..
MWI (HY-2A)4 - fairCoarse spatial resolution.. Affected by vegetation..
SHF4 - fairCoarse spatial resolution.. Affected by vegetation..
SMMR4 - fairCoarse spatial resolution.. Affected by vegetation..
WindSat4 - fairCoarse spatial resolution.. Affected by vegetation..
InSAR4 - fairInfrequent coverage..
PALSAR4 - fairInfrequent coverage..
PALSAR-24 - fairInfrequent coverage..
SAR4 - fairInfrequent coverage..
SAR (JERS)4 - fairInfrequent coverage..
SAR-L4 - fairInfrequent coverage..
SAR-L (NISAR)4 - fairInfrequent coverage..
SAR-104 - fairAffected by vegetation.. Infrequent coverage..
SAR-S4 - fairAffected by vegetation.. Infrequent coverage..
SAR-S (NISAR) 4 - fairAffected by vegetation.. Infrequent coverage..
AMI-SAR5 - marginalAffected by vegetation.. Infrequent coverage..
ASAR5 - marginalAffected by vegetation.. Infrequent coverage..
R6005 - marginalCoarse spatial resolution.. Affected by vegetation.. Along-track only..
SAR (RadarSat-1)5 - marginalAffected by vegetation.. Infrequent coverage..
SAR RCM5 - marginalAffected by vegetation.. Infrequent coverage..
SAR-C (GF-3)5 - marginalAffected by vegetation.. Infrequent coverage..
SAR-C (RISAT)5 - marginalAffected by vegetation.. Infrequent coverage..
SAR-C (Sentinel-1)5 - marginalAffected by vegetation.. Infrequent coverage..