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 Sea-ice type

Definition:

Variable convolving several factors (age, roughness, density, etc.) - Accuracy expressed as number of classes. Actually [ classes^-1 ] is used, so that smaller figure corresponds to better performance, as usual.

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

Found 139 results

Instrument NRT? Relevance Satellite Orbit
1976
1977
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1980
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1991
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2046
WindRAD1 - primaryFY-3E06:00 descXXXXXX
WindRAD1 - primaryFY-3H06:00 descXXXXXX
NSCAT1 - primaryADEOS10:30 desc
X
X
OSCAT Important note1 - primaryOceanSat-211:50 desc
X
XXXX
X
OSCAT1 - primaryOceanSat-312:00 descXXXXXX
OSCAT1 - primaryScatSat-108:45 desc
X
XXXXX
OSCAT1 - primaryOceanSat-3A12:00 descXXXXXX
RapidScat1 - primaryISS RapidScat51.6 °
X
X
X
SASS1 - primarySeaSat108 °
X
SCAT (CFOSAT)1 - primaryCFOSAT07:00 desc
X
XXXX
SCAT (CFOSAT)1 - primaryCFOSAT follow-on07:00 descXXXXXX
SCAT (HY-2A)1 - primaryHY-2A06:00 desc
X
XXXXXXXX
SCAT (HY-2A)1 - primaryHY-2B06:00 desc
X
XXXXX
SCAT (HY-2A)1 - primaryHY-2C66 °XXXXXX
SCAT (HY-2A)1 - primaryHY-2D66 °XXXXXX
SCAT (HY-2A)1 - primaryHY-2E06:00 descXXXXXX
SCAT (HY-2A)1 - primaryHY-2F66 °XXXXXX
SCAT (HY-2A)1 - primaryHY-2G66 °XXXXXX
SCAT (Meteor-M N3)1 - primaryMeteor-M N312:00 ascXXXXXX
SeaWinds1 - primaryADEOS-210:30 desc
X
X
SeaWinds1 - primaryQuikSCAT06:00 asc
X
XXXXXXXXX
X
AMI-SCAT1 - primaryERS-110:30 desc
X
XXXXXXXX
X
AMI-SCAT1 - primaryERS-210:30 desc
X
XXXXXXXXXXXXXXX
X
ASCATYes1 - primaryMetop-A09:30 desc
X
XXXXXXXXXXXXXXX
ASCATYes1 - primaryMetop-B09:30 desc
X
XXXXXXXXXXXX
ASCAT1 - primaryMetop-C09:30 desc
X
XXXXXXX
SCA (Scatterometer)1 - primaryEPS-SG-B109:30 descXXXXXXXX
SCA (Scatterometer)1 - primaryEPS-SG-B209:30 descXXXXXXXX
SCA (Scatterometer)1 - primaryEPS-SG-B309:30 descXXXXXXXX
BRLK “Briz”2 - very highMeteor-MP N115:30 ascXXXXXXXX
BRLK “Briz”2 - very highMeteor-MP N209:30 descXXXXXXXX
BRLK “Briz”2 - very highObzor-R N1TBDXXXXXX
BRLK “Briz”2 - very highObzor-R N2TBDXXXXXX
BRLK “Briz”2 - very highObzor-R N3TBDXXXXXX
BRLK “Briz”2 - very highObzor-R N4TBDXXXXXX
COSI2 - very highKOMPSAT-506:00 asc
X
XXXXXX
HRWS-SAR2 - very highHRWS-SAR06:00 descXXXXXXX
MeteoSAR2 - very highMeteor-M N312:00 ascXXXXXX
MeteoSAR2 - very highMeteor-M N2-315:09 ascXXXXXX
MeteoSAR2 - very highMeteor-M N2-409:00 descXXXXXX
MeteoSAR2 - very highMeteor-M N2-515:00 descXXXXXX
MeteoSAR2 - very high Meteor-M N2-609:00 ascXXXXXX
RLSBO2 - very highOkean-O-182.5 °
X
X
RLSBO2 - very highOkean-O1-182.5 °
X
X
X
RLSBO2 - very highOkean-O1-282.5 °
X
X
X
RLSBO2 - very highOkean-O1-382.5 °
X
X
X
RLSBO2 - very highOkean-O1-582.5 °
X
X
X
RLSBO2 - very highOkean-O1-682.5 °
X
X
X
RLSBO2 - very highOkean-O1-782.5 °
X
X
X
RLSBO2 - very highSICH-182.5 °
X
XXXXX
X
RLSBO2 - very highSICH-1M82.5 °
X
X
X
SAR-2000No2 - very highCSK-1 Important note06:00 asc
X
XXXXXXXXXXXX
SAR-2000No2 - very highCSK-2 Important note06:00 asc
X
XXXXXXXXXXXX
SAR-2000No2 - very highCSK-3 Important note06:00 asc
X
XXXXXXXXXXX
SAR-2000No2 - very highCSK-4 Important note06:00 asc
X
XXXXXXXXX
SAR-2000 S.G.2 - very highCSG-106:00 asc
X
XXXXXXX
SAR-2000 S.G.2 - very highCSG-206:00 ascXXXXXXXX
SAR-X2 - very highTanDEM-X Important note06:00 desc
X
XXXXXXXXX
SAR-X2 - very highTerraSAR-X Important note06:00 desc
X
XXXXXXXXXXXX
SAR-X2 - very highTSX-NG06:00 descXXXXXXXX
SAR-X (Paz (SEOSAR))2 - very highSEOSAR/Paz06:00 asc
X
XXXXX
Severjanin-M Important note2 - very highMeteor-M N109:30 desc
X
XXX
Severjanin-M Important note2 - very highMeteor-M N209:30 asc
X
XXXXX
W-SAR2 - very highHY-3A06:00 descXXXXXXXXX
W-SAR2 - very highHY-3B06:00 descXXXXXXXXX
XSAR2 - very highASNARO-206:00 desc
X
XXXXX
AMI-SAR2 - very highERS-110:30 desc
X
XXXXXXXX
X
AMI-SAR2 - very highERS-210:30 desc
X
XXXXXXXXXXXXXXX
X
ASAR2 - very highEnvisat10:00 desc
X
XXXXXXXXX
X
SAR (RadarSat-1)2 - very highRadarSat-106:00 desc
X
XXXXXXXXXXXXXXXXX
X
SAR (RadarSat-1)No2 - very highRadarSat-206:00 desc
X
XXXXXXXXXXXX
SAR RCM2 - very highRCM-106:00 desc
X
XXXXXXX
SAR RCM2 - very highRCM-206:00 desc
X
XXXXXXX
SAR RCM2 - very highRCM-306:00 desc
X
XXXXXXX
SAR-C (GF-3)2 - very highGF-306:00 desc
X
XXXXXXXX
SAR-C (RISAT)2 - very highRISAT-106:00 desc
X
XXXX
X
SAR-C (RISAT)2 - very highRISAT-1A06:00 desc
X
XXXXX
SAR-C (Sentinel-1)No2 - very highSentinel-1A06:00 desc
X
XXXXXXX
SAR-C (Sentinel-1)2 - very highSentinel-1B06:00 desc
X
XXXXXXX
SAR-C (Sentinel-1)No2 - very highSentinel-1C06:00 descXXXXXXXX
SAR-C (Sentinel-1)No2 - very highSentinel-1D06:00 descXXXXXXXX
SAR-Travers3 - highResurs-O1-110:15 asc
X
X
S-SAR3 - highNovaSAR-S10:30 asc
X
XXXXXXX
SAR-10 Important note3 - highKondor-E174.75 °
X
XXXXX
SAR-103 - highKondor-E74.75 °
X
X
SAR-S Important note3 - highHJ-1C Important note06:00 desc
X
XXXXXXX
SAR-S (NISAR) 3 - highNI-SAR06:00 descXXXXXX
PALSAR3 - highALOS10:30 desc
X
XXXX
X
PALSAR-2No3 - highALOS-212:00 desc
X
XXXXXX
PALSAR-33 - highALOS-412:00 descXXXXXXXX
SAR3 - highSeaSat108 °
X
SAR (JERS)3 - highJERS10:45 desc
X
XXXXX
X
SAR-L3 - highSAOCOM-1A06:00 asc
X
XXXXX
SAR-L3 - highSAOCOM-1B06:00 asc
X
XXXXX
SAR-L3 - highSAOCOM-2A06:00 ascXXXXXX
SAR-L3 - highSAOCOM-2B06:00 ascXXXXXX
SAR-L (NISAR)3 - highNI-SAR06:00 descXXXXXX
AMSR4 - fairADEOS-210:30 desc
X
X
AMSR-2No4 - fairGCOM-W13:30 asc
X
XXXXXXX
AMSR-E Important noteNo4 - fairAqua13:30 asc
X
XXXXXXXX
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
GMI (core)No4 - fairGPM Core Observatory65 °
X
XXXXX
MTVZA-GY Important note4 - fairMeteor-M N109:30 desc
X
XXXX
X
MTVZA-GY Important note4 - fairMeteor-M N209:30 asc
X
XX
X
MTVZA-GY4 - fairMeteor-M N2-215:15 asc
X
XXXXX
MTVZA-GY4 - fairMeteor-M N2-315:09 ascXXXXXX
MTVZA-GY4 - fairMeteor-M N2-409:00 descXXXXXX
MTVZA-GY4 - fairMeteor-M N2-515:00 descXXXXXX
MTVZA-GY4 - fair Meteor-M N2-609:00 ascXXXXXX
MWRI Important note4 - fairFY-3A09:05 desc
X
MWRIYes4 - fairFY-3B13:38 asc
X
XXXXXXXXX
MWRIYes4 - fairFY-3C10:15 desc
X
XXXXXX
MWRIYes4 - fairFY-3D14:00 asc
X
XXXXX
MWRI4 - fairFY-3F10:00 descXXXXXX
MWRI4 - fairFY-3G14:00 ascXXXXXX
MWRI4 - fairFY-3RM-150 °XXXXXX
MWRI4 - fairFY-3RM-250 °XXXXXX
MTVZA4 - fairMeteor-3M09:15 asc
X
XXXX
X
MWI (MetOp-SG)4 - fairEPS-SG-B109:30 descXXXXXXXX
MWI (MetOp-SG)4 - fairEPS-SG-B209:30 descXXXXXXXX
MWI (MetOp-SG)4 - fairEPS-SG-B309:30 descXXXXXXXX
SSM/I4 - fairDMSP-F0806:10 desc
X
XXXXXXXXXXXXXXXXXX
X
SSM/I4 - fairDMSP-F1007:30 desc
X
XXXXXX
X
SSM/I4 - fairDMSP-F1105:00 desc
X
XXXXXXXX
X
SSM/I4 - fairDMSP-F1203:35 desc
X
XXXXXXXXXXXXX
X
SSM/I4 - fairDMSP-F1305:51 desc
X
XXXXXXXXXXXXXXXXXXX
X
SSM/I Important noteNo4 - fairDMSP-F14 Important note17:00 asc
X
XXXXXXXXXXXXXXXXXX
SSM/I Important noteNo4 - fairDMSP-F15 Important note14:50 asc
X
XXXXXXXXXXXXXXXXXXXX
SSMIS Important noteNo4 - fairDMSP-F16 Important note06:20 asc
X
XXXXXXXXXXXXXXXX
SSMIS Important noteNo4 - fairDMSP-F1706:20 desc
X
XXXXXXXXXXXXX
SSMIS Important noteNo4 - fairDMSP-F1807:08 desc
X
XXXXXXXXXX
SSMISNo4 - fairDMSP-F1906:36 desc
X
X
X
MWI (HY-2A)5 - marginalHY-2A06:00 desc
X
XXXX
X
MWI (HY-2A)5 - marginalHY-2B06:00 desc
X
XXXXX
SMMR5 - marginalNimbus-712:00 desc
X
XXXXXXXXXXXXXXX
X
SMMR5 - marginalSeaSat108 °
X
WindSat Important noteNo5 - marginalCoriolis06:10 desc
X
XXXXXXXXXXXXXXXX
All instruments for measuring Sea-ice type
Instruments Relevance Operational limitations
WindRAD1 - primaryNo specific limitation..
NSCAT1 - primaryNo specific limitation..
OSCAT1 - primaryNo specific limitation..
RapidScat1 - primaryNo specific limitation..
SASS1 - primaryNo specific limitation..
SCAT (CFOSAT)1 - primaryNo specific limitation..
SCAT (HY-2A)1 - primaryNo specific limitation..
SCAT (Meteor-M N3)1 - primaryNo specific limitation..
SeaWinds1 - primaryNo specific limitation..
AMI-SCAT1 - primaryNo specific limitation..
ASCAT1 - primaryNo specific limitation..
SCA (Scatterometer)1 - primaryNo specific limitation..
SAR-X/Ku2 - very highNo specific limitation..
BRLK “Briz”2 - very highNo specific limitation..
COSI2 - very highNo specific limitation..
HRWS-SAR2 - very highNo specific limitation..
MeteoSAR2 - very highNo specific limitation..
RLSBO2 - very highNo specific limitation..
SAR-20002 - very highNo specific limitation..
SAR-2000 S.G.2 - very highNo specific limitation..
SAR-X2 - very highNo specific limitation..
SAR-X (Paz (SEOSAR))2 - very highNo specific limitation..
Severjanin-M2 - very highNo specific limitation..
W-SAR2 - very highNo specific limitation..
XSAR2 - very highNo specific limitation..
AMI-SAR2 - very highNo specific limitation..
ASAR2 - very highNo specific limitation..
SAR (RadarSat-1)2 - very highNo specific limitation..
SAR RCM2 - very highNo specific limitation..
SAR-C (GF-3)2 - very highNo specific limitation..
SAR-C (RISAT)2 - very highNo specific limitation..
SAR-C (Sentinel-1)2 - very highNo specific limitation..
SAR-Travers3 - highNo specific limitation..
S-SAR3 - highNo specific limitation..
SAR-103 - highNo specific limitation..
SAR-S3 - highNo specific limitation..
SAR-S (NISAR) 3 - highNo specific limitation..
InSAR3 - highNo specific limitation..
PALSAR3 - highNo specific limitation..
PALSAR-23 - highNo specific limitation..
PALSAR-33 - highNo specific limitation..
SAR3 - highNo specific limitation..
SAR (JERS)3 - highNo specific limitation..
SAR-L3 - highNo specific limitation..
SAR-L (NISAR)3 - highNo specific limitation..
AMSR4 - fairNo specific limitation..
AMSR-24 - fairNo specific limitation..
AMSR-E4 - fairNo specific limitation..
MTVZA-GY-MP4 - fairNo specific limitation..
MTVZA-OK (MW)4 - fairNo specific limitation..
GMI (core)4 - fairNo specific limitation..
MTVZA-GY4 - fairNo specific limitation..
MWRI4 - fairNo specific limitation..
MTVZA4 - fairNo specific limitation..
MWI (MetOp-SG)4 - fairNo specific limitation..
SSM/I4 - fairNo specific limitation..
SSMIS4 - fairNo specific limitation..
MWI (HY-2A)5 - marginalNo specific limitation..
SMMR5 - marginalNo specific limitation..
WindSat5 - marginalNo specific limitation..