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.  For this particular Variable, the rating is driven by:

  • the exploited SAR frequency.

 

RATING CRITERIA:

1
  • X- and Ku-band SAR

2
  • X-band SAR

3
  • C-band SAR

4
  • L- and S-band SAR

5
  • L- or S-band SAR
Measurement timeline for Dominant wave period

Definition: The period of the most energetic wave in the ocean wave spectrum.

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

Found 62 results

This table has a large number of results.
Hide inactive instruments
Instrument NRT? Relevance Satellite Orbit
1976
1977
1978
1979
1980
1981
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
BRLK “Briz”2 - very highMeteor-MP N115:30 asc
X
XXXXXXX
BRLK “Briz”2 - very highMeteor-MP N209:30 desc
X
XXXXXXX
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 N4TBDXXXXXXXX
COSI2 - very highKOMPSAT-506:00 asc
X
XXXXXXXXX
COSI2 - very highKOMPSAT-606:00 asc
X
XXXX
CSG-SAR2 - very highCSG-106:00 asc
X
XXXXXXX
CSG-SAR2 - very highCSG-206:00 asc
X
XXXXXX
HRWS-SAR2 - very highHRWS-SAR06:00 descXXXXXXXXX
MeteoSAR2 - very highMeteor-M N2-309:00 desc
X
XXXXX
MeteoSAR2 - very highMeteor-M N2-415:00 ascXXXXX
MeteoSAR2 - very highMeteor-M N2-515:00 desc
X
XXXXX
MeteoSAR2 - very highMeteor-M N2-609:00 asc
X
XXXXX
SAR-2000No2 - very highCSK-106:00 asc
X
XXXXXXXXXXXXXXX
SAR-2000No2 - very highCSK-206:00 asc
X
XXXXXXXXXXXXXXX
SAR-2000No2 - very highCSK-306:00 asc
X
XXXXXXXXXXXXXX
SAR-2000No2 - very highCSK-406:00 asc
X
XXXXXXXXXXXX
SAR-X2 - very highTanDEM-X06:00 desc
X
XXXXXXXXXXXXXXXX
SAR-X2 - very highTerraSAR-X06:00 desc
X
XXXXXXXXXXXXXXXXX
SAR-X (Paz (SEOSAR))2 - very highSEOSAR/Paz06:00 asc
X
XXXXX
SAR-X (RISAT-2) Important note2 - very highRISAT-241 °
X
XXXXXXXXXXXXX
SAR-X (RISAT-2) Important note2 - very highRISAT-2B37 °
X
XXXXX
SAR-X (RISAT-2) Important note2 - very highRISAT-2BR137 °
X
XXXXX
SAR-X (RISAT-2) Important note2 - very highEOS-0137 °
X
XXXXX
W-SAR2 - very highHY-3A06:00 descXXXXXXXX
W-SAR2 - very highHY-3B06:00 descXXXXXXXX
AMI-SAR3 - highERS-110:30 desc
X
XXXXXXXX
X
AMI-SAR3 - highERS-210:30 desc
X
XXXXXXXXXXXXXXX
X
ASAR3 - highEnvisat10:00 desc
X
XXXXXXXXX
X
SAR (RadarSat-1)3 - highRadarSat-106:00 desc
X
XXXXXXXXXXXXXXXXX
X
SAR (RadarSat-1)No3 - highRadarSat-206:00 desc
X
XXXXXXXXXXXXXXX
SAR RCM3 - highRCM-106:00 desc
X
XXXXXXX
SAR RCM3 - highRCM-206:00 desc
X
XXXXXXX
SAR RCM Important note3 - highRCM-306:00 desc
X
XXXXXXX
SAR-C (GF-3)3 - highGF-306:00 desc
X
XXXXXXXX
SAR-C (GF-3)3 - highGF-1206:00 desc
X
XXXXXXXX
SAR-C (GF-3)3 - highGF-12-0206:00 desc
X
XXXXXXXX
SAR-C (GF-3)3 - highGF-3-0206:00 desc
X
XXXXXXXX
SAR-C (RISAT)3 - highRISAT-106:00 desc
X
XXXX
X
SAR-C (RISAT)3 - highEOS 0406:00 descXXXXXX
SAR-C (Sentinel-1)No3 - highSentinel-1A06:00 desc
X
XXXXXXXX
SAR-C (Sentinel-1)3 - highSentinel-1B06:00 desc
X
XXXXXXX
SAR-C (Sentinel-1)No3 - highSentinel-1C06:00 descXXXXXXXX
SAR-C (Sentinel-1)No3 - highSentinel-1D06:00 descXXXXXXXX
SAR-Travers4 - fairResurs-O1-110:15 asc
X
X
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
XXXXXXXXXX
SAR-S (NISAR) 5 - marginalNI-SAR06:00 descXXXX
L-SAR5 - marginalTandem-L06:00 descXXXXXXXXXXXXX
PALSAR5 - marginalALOS10:30 desc
X
XXXX
X
PALSAR-2No5 - marginalALOS-212:00 desc
X
XXXXXXXX
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 asc
X
XXXXXXXXX
SAR-L5 - marginalSAOCOM-2B06:00 asc
X
XXXXXXXXXX
SAR-L (NISAR)5 - marginalNI-SAR06:00 descXXXX
All instruments for measuring Dominant wave period
Instruments Relevance Operational limitations
SAR-X/Ku1 - primary
BRLK “Briz”2 - very high
COSI2 - very high
CSG-SAR2 - very high
HRWS-SAR2 - very high
MeteoSAR2 - very high
SAR-20002 - very high
SAR-X2 - very high
SAR-X (Paz (SEOSAR))2 - very high
SAR-X (RISAT-2)2 - very high
W-SAR2 - very high
AMI-SAR3 - high
ASAR3 - high
SAR (RadarSat-1)3 - high
SAR RCM3 - high
SAR-C (GF-3)3 - high
SAR-C (RISAT)3 - high
SAR-C (Sentinel-1)3 - high
SAR-Travers4 - fair
SAR-105 - marginal
SAR-S5 - marginal
SAR-S (NISAR) 5 - marginal
InSAR5 - marginal
L-SAR5 - marginal
PALSAR5 - marginal
PALSAR-25 - marginal
PALSAR-35 - marginal
ROSE-L5 - marginal
SAR5 - marginal
SAR (JERS)5 - marginal
SAR-L5 - marginal
SAR-L (NISAR)5 - marginal