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 thickness

Definition:

Thickness of the ice sheet. It is related to sea-ice elevation and ice density

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

Found 84 results

Instrument NRT? Relevance Satellite Orbit
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GEDI Lidar1 - primaryISS GEDI51.6 °
X
XXXXX
MOLI lidar1 - primaryISS MOLI51.6 °XXXXXX
GLAS1 - primaryICESat94 °
X
XXXXXX
X
ATLAS1 - primaryICESat-294 °
X
XXXXX
SRALYes2 - very highSentinel-3A10:00 desc
X
XXXXXXX
SRALYes2 - very highSentinel-3B10:00 desc
X
XXXXXXX
SRAL2 - very highSentinel-3C10:00 descXXXXXXXX
SRAL2 - very highSentinel-3D10:00 descXXXXXXXX
SRAL (JASON)2 - very highJASON-CS-A66 °XXXXXXXX
SRAL (JASON)2 - very highJASON-CS-B66 °XXXXXXXX
SIRAL2 - very highCryoSat92 °
X
SIRALNo2 - very highCryoSat-292 °
X
XXXXXXXXX
KaRIN3 - highSWOT78 °XXXX
SWIM3 - highCFOSAT07:00 desc
X
XXXX
SWIM3 - highCFOSAT follow-on07:00 descXXXXXX
SHIOSAI3 - highCOMPIRA51 °XXXXXX
BRLK “Briz”4 - fairMeteor-MP N115:30 ascXXXXXXXX
BRLK “Briz”4 - fairMeteor-MP N209:30 descXXXXXXXX
BRLK “Briz”4 - fairObzor-R N1TBDXXXXXX
BRLK “Briz”4 - fairObzor-R N2TBDXXXXXX
BRLK “Briz”4 - fairObzor-R N3TBDXXXXXX
BRLK “Briz”4 - fairObzor-R N4TBDXXXXXX
COSI4 - fairKOMPSAT-506:00 asc
X
XXXXXX
HRWS-SAR4 - fairHRWS-SAR06:00 descXXXXXXX
MeteoSAR4 - fairMeteor-M N312:00 ascXXXXXX
MeteoSAR4 - fairMeteor-M N2-315:09 ascXXXXXX
MeteoSAR4 - fairMeteor-M N2-409:00 descXXXXXX
MeteoSAR4 - fairMeteor-M N2-515:00 descXXXXXX
MeteoSAR4 - fair Meteor-M N2-609:00 ascXXXXXX
RLSBO4 - fairOkean-O-182.5 °
X
X
RLSBO4 - fairOkean-O1-182.5 °
X
X
X
RLSBO4 - fairOkean-O1-282.5 °
X
X
X
RLSBO4 - fairOkean-O1-382.5 °
X
X
X
RLSBO4 - fairOkean-O1-582.5 °
X
X
X
RLSBO4 - fairOkean-O1-682.5 °
X
X
X
RLSBO4 - fairOkean-O1-782.5 °
X
X
X
RLSBO4 - fairSICH-182.5 °
X
XXXXX
X
RLSBO4 - fairSICH-1M82.5 °
X
X
X
SAR-2000No4 - fairCSK-1 Important note06:00 asc
X
XXXXXXXXXXXX
SAR-2000No4 - fairCSK-2 Important note06:00 asc
X
XXXXXXXXXXXX
SAR-2000No4 - fairCSK-3 Important note06:00 asc
X
XXXXXXXXXXX
SAR-2000No4 - fairCSK-4 Important note06:00 asc
X
XXXXXXXXX
SAR-2000 S.G.4 - fairCSG-106:00 asc
X
XXXXXXX
SAR-2000 S.G.4 - fairCSG-206:00 ascXXXXXXXX
SAR-X4 - fairTanDEM-X Important note06:00 desc
X
XXXXXXXXX
SAR-X4 - fairTerraSAR-X Important note06:00 desc
X
XXXXXXXXXXXX
SAR-X4 - fairTSX-NG06:00 descXXXXXXXX
SAR-X (Paz (SEOSAR))4 - fairSEOSAR/Paz06:00 asc
X
XXXXX
Severjanin-M Important note4 - fairMeteor-M N109:30 desc
X
XXX
Severjanin-M Important note4 - fairMeteor-M N209:30 asc
X
XXXXX
W-SAR4 - fairHY-3A06:00 descXXXXXXXXX
W-SAR4 - fairHY-3B06:00 descXXXXXXXXX
XSAR4 - fairASNARO-206:00 desc
X
XXXXX
AMI-SAR4 - fairERS-110:30 desc
X
XXXXXXXX
X
AMI-SAR4 - fairERS-210:30 desc
X
XXXXXXXXXXXXXXX
X
ASAR4 - fairEnvisat10:00 desc
X
XXXXXXXXX
X
SAR (RadarSat-1)4 - fairRadarSat-106:00 desc
X
XXXXXXXXXXXXXXXXX
X
SAR (RadarSat-1)No4 - fairRadarSat-206:00 desc
X
XXXXXXXXXXXX
SAR RCM4 - fairRCM-106:00 desc
X
XXXXXXX
SAR RCM4 - fairRCM-206:00 desc
X
XXXXXXX
SAR RCM4 - fairRCM-306:00 desc
X
XXXXXXX
SAR-C (GF-3)4 - fairGF-306:00 desc
X
XXXXXXXX
SAR-C (RISAT)4 - fairRISAT-106:00 desc
X
XXXX
X
SAR-C (RISAT)4 - fairRISAT-1A06:00 descXXXXX
SAR-C (Sentinel-1)No4 - fairSentinel-1A06:00 desc
X
XXXXXXX
SAR-C (Sentinel-1)4 - fairSentinel-1B06:00 desc
X
XXXXXXX
SAR-C (Sentinel-1)No4 - fairSentinel-1C06:00 descXXXXXXXX
SAR-C (Sentinel-1)No4 - fairSentinel-1D06:00 descXXXXXXXX
SAR-Travers5 - marginalResurs-O1-110:15 asc
X
X
S-SAR5 - marginalNovaSAR-S10:30 asc
X
XXXXXXX
SAR-10 Important note5 - marginalKondor-E174.75 °
X
XXXXX
SAR-105 - marginalKondor-E74.75 °
X
X
SAR-S Important note5 - marginalHJ-1C Important note06:00 desc
X
XXXXXXX
SAR-S (NISAR) 5 - marginalNI-SAR06:00 descXXXXXX
PALSAR5 - marginalALOS10:30 desc
X
XXXX
X
PALSAR-2No5 - marginalALOS-212:00 desc
X
XXXXXX
PALSAR-35 - marginalALOS-412:00 descXXXXXXXX
SAR5 - marginalSeaSat108 °
X
SAR (JERS)5 - marginalJERS10:45 desc
X
XXXXX
X
SAR-L5 - marginalSAOCOM-1A06:00 asc
X
XXXXX
SAR-L5 - marginalSAOCOM-1B06:00 asc
X
XXXXX
SAR-L5 - marginalSAOCOM-2A06:00 ascXXXXXX
SAR-L5 - marginalSAOCOM-2B06:00 ascXXXXXX
SAR-L (NISAR)5 - marginalNI-SAR06:00 descXXXXXX
All instruments for measuring Sea-ice thickness
Instruments Relevance Operational limitations
GEDI Lidar1 - primaryCloud sensitive.. Infrequent coverage.. Change detection only..
MOLI lidar1 - primaryCloud sensitive.. Infrequent coverage.. Change detection only..
VCL1 - primaryCloud sensitive.. Infrequent coverage.. Change detection only..
GLAS1 - primaryCloud sensitive.. Change detection only.. Along-track only..
ATLAS1 - primaryCloud sensitive.. Change detection only.. Along-track only..
SRAL2 - very highChange detection only.. Along-track only..
SRAL (JASON)2 - very highChange detection only.. Along-track only..
SIRAL2 - very highChange detection only.. Along-track only..
KaRIN3 - highInfrequent coverage.. Change detection only..
SWIM3 - highInfrequent coverage.. Change detection only..
SHIOSAI3 - highInfrequent coverage.. Change detection only..
SAR-X/Ku4 - fairChange detection only..
BRLK “Briz”4 - fairChange detection only..
COSI4 - fairChange detection only..
HRWS-SAR4 - fairChange detection only..
MeteoSAR4 - fairChange detection only..
RLSBO4 - fairChange detection only..
SAR-20004 - fairChange detection only..
SAR-2000 S.G.4 - fairChange detection only..
SAR-X4 - fairChange detection only..
SAR-X (Paz (SEOSAR))4 - fairChange detection only..
Severjanin-M4 - fairChange detection only..
W-SAR4 - fairChange detection only..
XSAR4 - fairChange detection only..
AMI-SAR4 - fairChange detection only..
ASAR4 - fairChange detection only..
SAR (RadarSat-1)4 - fairChange detection only..
SAR RCM4 - fairChange detection only..
SAR-C (GF-3)4 - fairChange detection only..
SAR-C (RISAT)4 - fairChange detection only..
SAR-C (Sentinel-1)4 - fairChange detection only..
SAR-Travers5 - marginalChange detection only..
S-SAR5 - marginalChange detection only..
SAR-105 - marginalChange detection only..
SAR-S5 - marginalChange detection only..
SAR-S (NISAR) 5 - marginalChange detection only..
InSAR5 - marginalChange detection only..
PALSAR5 - marginalChange detection only..
PALSAR-25 - marginalChange detection only..
PALSAR-35 - marginalChange detection only..
SAR5 - marginalChange detection only..
SAR (JERS)5 - marginalChange detection only..
SAR-L5 - marginalChange detection only..
SAR-L (NISAR)5 - marginalChange detection only..