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 Wind speed (near surface)

Definition:

Speed of air at a known height above the surface which is to be specified in the metadata

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

Found 122 results

Instrument NRT? Relevance Satellite Orbit
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WindRAD1 - primaryFY-3E06:00 descXXXXXX
WindRAD1 - primaryFY-3H06:00 descXXXXXX
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 - primaryMetop-SG-B109:30 descXXXXXXXX
SCA (Scatterometer)1 - primaryMetop-SG-B209:30 descXXXXXXXX
SCA (Scatterometer)1 - primaryMetop-SG-B309:30 descXXXXXXXX
NSCAT1 - primaryADEOS10:30 desc
X
X
OSCAT Important note1 - primaryOceanSat-211:53 desc
X
XXXX
X
OSCAT1 - primaryOceanSat-312:00 descXXXXXX
OSCAT1 - primaryScatSat-108:27 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-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 (HY-2A)1 - primaryHY-2A06:00 desc
X
XXXXXXXXX
SeaWinds1 - primaryADEOS-210:30 desc
X
X
SeaWinds1 - primaryQuikSCAT06:00 asc
X
XXXXXXXXX
X
AMSR2 - very highADEOS-210:30 desc
X
X
AMSR-2No2 - very highGCOM-W13:30 asc
X
XXXXXXXX
AMSR-E Important noteNo2 - very highAqua13:30 asc
X
XXXXXXXX
X
MTVZA-GY-MP2 - very highMeteor-MP N115:30 ascXXXXXXXX
MTVZA-GY-MP2 - very highMeteor-MP N209:30 descXXXXXXXX
MTVZA-OK (MW)2 - very highSICH-1M82.5 °
X
X
X
MWRI (HY-2)2 - very highHY-2B06:00 desc
X
XXXXX
MWRI (HY-2)2 - very highHY-2A06:00 desc
X
XXXX
X
SMMR2 - very highNimbus-712:00 desc
X
XXXXXXXXXXXXXXX
X
SMMR2 - very highSeaSat108 °
X
WindSat Important noteNo2 - very highCoriolis06:10 desc
X
XXXXXXXXXXXXXXXXX
Delta-2D3 - highOkean-O-182.5 °
X
X
SHF3 - highMeteor-P181.2 °
X
X
X
SHF3 - highMeteor-P281.2 °
X
X
X
SHF3 - highMeteor-P310:15 asc
X
X
X
SHF3 - highMeteor-P610:15 asc
X
X
X
GMI (core)No3 - highGPM Core Observatory65 °
X
XXXXXX
MTVZA-GY Important note3 - highMeteor-M N109:30 desc
X
XXXX
X
MTVZA-GY Important note3 - highMeteor-M N209:30 asc
X
XX
X
MTVZA-GY3 - highMeteor-M N2-609:00 ascXXXXXX
MTVZA-GY3 - highMeteor-M N2-315:09 ascXXXXXX
MTVZA-GY3 - highMeteor-M N2-409:00 descXXXXXX
MTVZA-GY3 - highMeteor-M N2-515:00 descXXXXXX
MTVZA-GY3 - highMeteor-M N2-115:09 asc
X
MTVZA-GY3 - highMeteor-M N2-215:00 asc
X
XXXXX
MWRI3 - highFY-3RM-150 °XXXXXX
MWRI3 - highFY-3RM-250 °XXXXXX
MWRI Important note3 - highFY-3A09:05 desc
X
MWRIYes3 - highFY-3B13:38 asc
X
XXXXXXXXXX
MWRI Important noteYes3 - highFY-3C10:15 desc
X
XXXXXX
X
MWRIYes3 - highFY-3D14:00 asc
X
XXXXX
MWRI3 - highFY-3F10:00 descXXXXXX
MWRI3 - highFY-3G14:00 ascXXXXXX
TMI 3 - highTRMM35 °
X
XXXXXXXXXXXXXXXXX
X
COWVR3 - highISS COWVR51.6 °XXXX
MSMR4 - fairOceanSat-1 (IRS-P4)12:00 desc
X
XXXXXXXXXX
X
GNOS-24 - fairFY-3RM-150 °XXXXXX
GNOS-24 - fairFY-3RM-250 °XXXXXX
GNOS-24 - fairFY-3E06:00 descXXXXXX
GNOS-24 - fairFY-3F10:00 descXXXXXX
GNOS-24 - fairFY-3G14:00 ascXXXXXX
GNOS-24 - fairFY-3H06:00 descXXXXXX
MADRAS Important note4 - fairMegha-Tropiques20 °
X
X
X
MTVZA4 - fairMeteor-3M09:15 asc
X
XXXX
X
MWI (MetOp-SG)4 - fairMetop-SG-B109:30 descXXXXXXXX
MWI (MetOp-SG)4 - fairMetop-SG-B209:30 descXXXXXXXX
MWI (MetOp-SG)4 - fairMetop-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-F1417:00 asc
X
XXXXXXXXXXXXXXXXXX
SSM/I Important noteNo4 - fairDMSP-F1514:50 asc
X
XXXXXXXXXXXXXXXXXXX
SSMIS Important noteNo4 - fairDMSP-F1606:20 asc
X
XXXXXXXXXXXXXXXX
SSMIS Important noteNo4 - fairDMSP-F1706:20 desc
X
XXXXXXXXXXXXXX
SSMIS Important noteNo4 - fairDMSP-F1807:08 desc
X
XXXXXXXXXXX
SSMISNo4 - fairDMSP-F1906:36 desc
X
X
X
DDMI4 - fairCYGNSS (8 sats)35 °
X
XXXXX
KaRIN4 - fairSWOT78 °XXXX
SHIOSAI4 - fairCOMPIRA51 °XXXXXX
SWIM4 - fairCFOSAT07:00 desc
X
XXXX
SWIM4 - fairCFOSAT follow-on07:00 descXXXXXX
ESMR (Nimbus-6)5 - marginalNimbus-612:00 desc
X
XXXXXXX
X
MIVZA5 - marginalMeteor-3M09:15 asc
X
XXXX
X
ALT (HY-2A)5 - marginalHY-2B06:00 desc
X
XXXXX
ALT (HY-2A)5 - marginalHY-2C66 °XXXXXX
ALT (HY-2A)5 - marginalHY-2D66 °XXXXXX
ALT (HY-2A)5 - marginalHY-2E06:00 descXXXXXX
ALT (HY-2A)5 - marginalHY-2F66 °XXXXXX
ALT (HY-2A)5 - marginalHY-2G66 °XXXXXX
ALT (HY-2A)5 - marginalHY-2A06:00 desc
X
XXXXXXXXX
ALT (SeaSat)5 - marginalSeaSat108 °
X
AltiKa5 - marginalSARAL05:56 asc
X
XXXXXXX
Altimeter5 - marginalSWOT78 °XXXX
Altimeter (COMPIRA)5 - marginalCOMPIRA51 °XXXXXX
GFO-RA5 - marginalGFO108 °
X
XXXXXXXXX
X
GRA5 - marginalGEOSat108 °
X
XXXX
X
NRA5 - marginalTOPEX-Poseidon66 °
X
XXXXXXXXXXXX
X
Poseidon-25 - marginalJASON-166 °
X
XXXXXXXXXXX
X
Poseidon-35 - marginalJASON-266 °
X
XXXXXXXXXX
X
Poseidon-3BYes5 - marginalJASON-366 °
X
XXXXX
RA5 - marginalERS-110:30 desc
X
XXXXXXXX
X
RA5 - marginalERS-210:30 desc
X
XXXXXXXXXXXXXXX
X
RA-25 - marginalEnvisat10:00 desc
X
XXXXXXXXX
X
SIRAL5 - marginalCryoSat92 °
X
SIRALNo5 - marginalCryoSat-292 °
X
XXXXXXXXXX
SRALYes5 - marginalSentinel-3B10:00 desc
X
XXXXXXX
SRAL5 - marginalSentinel-3C10:00 descXXXXXXXX
SRAL5 - marginalSentinel-3D10:00 descXXXXXXXX
SRALYes5 - marginalSentinel-3A10:00 desc
X
XXXXXXX
SRAL (JASON)5 - marginalJASON-CS-A66 °
X
XXXXXXX
SRAL (JASON)5 - marginalJASON-CS-B66 °XXXXXXXX
SSALT5 - marginalTOPEX-Poseidon66 °
X
XXXXXXXXXXXX
X
All instruments for measuring Wind speed (near surface)
Instruments Relevance Operational limitations
WindRAD1 - primaryOver sea only..
AMI-SCAT1 - primaryOver sea only..
ASCAT1 - primaryOver sea only..
SCA (Scatterometer)1 - primaryOver sea only..
NSCAT1 - primaryOver sea only..
OSCAT1 - primaryOver sea only..
RapidScat1 - primaryOver sea only..
SASS1 - primaryOver sea only..
SCAT (CFOSAT)1 - primaryOver sea only..
SCAT (HY-2A)1 - primaryOver sea only..
SCAT (Meteor-M N3)1 - primaryOver sea only..
SeaWinds1 - primaryOver sea only..
AMSR2 - very highOver sea only..
AMSR-22 - very highOver sea only..
AMSR-E2 - very highOver sea only..
MTVZA-GY-MP2 - very highOver sea only..
MTVZA-OK (MW)2 - very highOver sea only..
MWRI (HY-2)2 - very highOver sea only..
SMMR2 - very highOver sea only..
WindSat2 - very highOver sea only..
Delta-2D3 - highOver sea only..
SHF3 - highOver sea only..
GMI (constellation)3 - highOver sea only..
GMI (core)3 - highOver sea only..
MTVZA-GY3 - highOver sea only..
MWRI3 - highOver sea only..
TMI 3 - highOver sea only..
COWVR3 - highOver sea only..
MSMR4 - fairOver sea only..
GNOS-24 - fairOver sea only..
MADRAS4 - fairOver sea only..
MTVZA4 - fairOver sea only..
MWI (MetOp-SG)4 - fairOver sea only..
SSM/I4 - fairOver sea only..
SSMIS4 - fairOver sea only..
DDMI4 - fairOver sea only..
KaRIN4 - fairOver sea only.. Infrequent coverage..
SHIOSAI4 - fairOver sea only.. Infrequent coverage..
SWIM4 - fairOver sea only.. Infrequent coverage..
ESMR (Nimbus-6)5 - marginalOver sea only..
MIVZA5 - marginalOver sea only..
ALT (HY-2A)5 - marginalOver sea only.. Along-track only..
ALT (SeaSat)5 - marginalOver sea only.. Along-track only..
AltiKa5 - marginalOver sea only.. Along-track only..
Altimeter5 - marginalOver sea only.. Along-track only..
Altimeter (COMPIRA)5 - marginalOver sea only.. Along-track only..
GFO-RA5 - marginalOver sea only.. Along-track only..
GRA5 - marginalOver sea only.. Along-track only..
NRA5 - marginalOver sea only.. Along-track only..
Poseidon-25 - marginalOver sea only.. Along-track only..
Poseidon-35 - marginalOver sea only.. Along-track only..
Poseidon-3B5 - marginalOver sea only.. Along-track only..
RA5 - marginalOver sea only.. Along-track only..
RA-25 - marginalOver sea only.. Along-track only..
SIRAL5 - marginalOver sea only.. Along-track only..
SRAL5 - marginalOver sea only.. Along-track only..
SRAL (JASON)5 - marginalOver sea only.. Along-track only..
SSALT5 - marginalOver sea only.. Along-track only..