WMO OSCAR | Gap analyses by variable

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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 () 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

Instrument types

Analysis

Expert system, based on instrument properties Help icon

Simplified, based on mission objectives Help icon

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 observing trechnique (SAR or optical); for SAR, the frequency: for optical, the viewing geometry and the spectral resolution.. RATING CRITERIA:
1	X- and/or Ku- band SAR C-band SAR
2	L and/or S-band SAR
3	Multi-viewing narrow-bandwidth VIS radiometer
4	Hyperspectral radiometer
5	Narrow-bandwidth VIS radiometer

Measurement timeline for Oil spill cover

Definition: Fraction of an ocean area polluted by hydrocarbons released from ships or off-shore platforms, accidentally or deliberately.

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

Found 159 results

This table has a large number of results.

HideShow lower rated instruments

HideShow inactive instruments

Instrument	NRT?	Relevance	Satellite	Orbit	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	2037	2038	2039	2040	2041	2042	2043	2044
BRLK “Briz”		1 - primary	Meteor-MP N1	15:30 asc																																																X	X	X	X	X	X	X	X
BRLK “Briz”		1 - primary	Meteor-MP N2	09:30 desc																																																	X	X	X	X	X	X	X	X
BRLK “Briz”		1 - primary	Obzor-R N1	TBD																																												X	X	X	X	X	X
BRLK “Briz”		1 - primary	Obzor-R N2	TBD																																														X	X	X	X	X	X
BRLK “Briz”		1 - primary	Obzor-R N3	TBD																																															X	X	X	X	X	X
BRLK “Briz”		1 - primary	Obzor-R N4	TBD																																																X	X	X	X	X	X
COSI		1 - primary	KOMPSAT-6	06:00 asc																																												X	X	X	X	X
COSI		1 - primary	KOMPSAT-5	06:00 asc																																				X	X	X	X	X	X	X	X	X
CSG-SAR		1 - primary	CSG-1	06:00 asc																																										X	X	X	X	X	X	X	X
CSG-SAR		1 - primary	CSG-2	06:00 asc																																												X	X	X	X	X	X	X	X
HRWS-SAR		1 - primary	HRWS-SAR	06:00 desc																																																	X	X	X	X	X	X	X	X	X
ICEYE SAR		1 - primary	ICEYE	TBD																																									X	X	X	X	X	X	X	X	X	X	X	X	X
MeteoSAR		1 - primary	Meteor-M N2-6	09:00 asc																																																X	X	X	X	X	X
MeteoSAR		1 - primary	Meteor-M N2-3	09:00 desc																																												X	X	X	X	X	X
MeteoSAR		1 - primary	Meteor-M N2-4	15:00 asc																																													X	X	X	X	X	X
MeteoSAR		1 - primary	Meteor-M N2-5	15:00 desc																																															X	X	X	X	X	X
RLSBO		1 - primary	Okean-O-1	82.5 °																						X	X
RLSBO		1 - primary	Okean-O1-1	82.5 °									X	X	X
RLSBO		1 - primary	Okean-O1-2	82.5 °										X	X	X
RLSBO		1 - primary	Okean-O1-3	82.5 °											X	X	X
RLSBO		1 - primary	Okean-O1-4	82.5 °												X
RLSBO		1 - primary	Okean-O1-5	82.5 °													X	X	X
RLSBO		1 - primary	Okean-O1-6	82.5 °														X	X	X
RLSBO		1 - primary	Okean-O1-7	82.5 °																	X	X	X
RLSBO		1 - primary	SICH-1	82.5 °																		X	X	X	X	X	X	X
RLSBO		1 - primary	SICH-1M	82.5 °																											X	X	X
SAR-2000	No	1 - primary	CSK-1	06:00 asc																														X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
SAR-2000	No	1 - primary	CSK-2	06:00 asc																														X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
SAR-2000	No	1 - primary	CSK-3	06:00 asc																															X	X	X	X	X	X	X	X	X	X	X	X	X	X
SAR-2000	No	1 - primary	CSK-4	06:00 asc																																	X	X	X	X	X	X	X	X	X	X	X	X
SAR-X		1 - primary	TanDEM-X	06:00 desc																																	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
SAR-X		1 - primary	TerraSAR-X	06:00 desc																														X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
SAR-X (Paz (SEOSAR))		1 - primary	SEOSAR/Paz	06:00 asc																																									X	X	X	X	X	X
SAR-X (RISAT-2)		1 - primary	RISAT-2B	37 °																																										X	X	X	X	X	X
SAR-X (RISAT-2)		1 - primary	RISAT-2BR1	37 °																																										X	X	X	X	X	X
SAR-X (RISAT-2)		1 - primary	EOS-01	37 °																																											X	X	X	X	X	X
SAR-X (RISAT-2)		1 - primary	RISAT-2	41 °																																X	X	X	X	X	X	X	X	X	X	X	X	X
Severjanin-M		1 - primary	Meteor-M N1	09:30 desc																																X	X	X	X
Severjanin-M		1 - primary	Meteor-M N2	09:30 asc																																					X	X	X	X	X	X	X	X
Severjanin-M		1 - primary	Meteor-M N2-6	09:00 asc																																																X	X	X	X	X	X
Severjanin-M		1 - primary	Meteor-M N2-3	09:00 desc																																												X	X	X	X	X	X
Severjanin-M		1 - primary	Meteor-M N2-4	15:00 asc																																													X	X	X	X	X	X
Severjanin-M		1 - primary	Meteor-M N2-5	15:00 desc																																															X	X	X	X	X	X
Severjanin-M		1 - primary	Meteor-M N2-1	15:09 asc																																								X
W-SAR		1 - primary	HY-3A	06:00 desc																																												X	X	X	X	X	X	X	X	X
W-SAR		1 - primary	HY-3B	06:00 desc																																												X	X	X	X	X	X	X	X	X
XSAR		1 - primary	ASNARO-2	06:00 desc																																									X	X	X	X	X	X
AMI-SAR		1 - primary	ERS-1	10:30 desc														X	X	X	X	X	X	X	X	X	X
AMI-SAR		1 - primary	ERS-2	10:30 desc																		X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
ASAR		1 - primary	Envisat	10:00 desc																									X	X	X	X	X	X	X	X	X	X	X
SAR (RadarSat-1)		1 - primary	RadarSat-1	06:00 desc																		X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
SAR (RadarSat-1)	No	1 - primary	RadarSat-2	06:00 desc																														X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
SAR RCM		1 - primary	RCM-1	06:00 desc																																										X	X	X	X	X	X	X	X
SAR RCM		1 - primary	RCM-2	06:00 desc																																										X	X	X	X	X	X	X	X
SAR RCM		1 - primary	RCM-3	06:00 desc																																										X	X	X	X	X	X	X	X
SAR-C (GF-3)		1 - primary	GF-12	06:00 desc																																										X	X	X	X	X	X	X	X	X
SAR-C (GF-3)		1 - primary	GF-3	06:00 desc																																							X	X	X	X	X	X	X	X	X
SAR-C (GF-3)		1 - primary	GF-12-02	06:00 desc																																												X	X	X	X	X	X	X	X
SAR-C (RISAT)		1 - primary	RISAT-1A	06:00 desc																																												X	X	X	X	X	X
SAR-C (RISAT)		1 - primary	RISAT-1	06:00 desc																																			X	X	X	X	X	X
SAR-C (Sentinel-1)	No	1 - primary	Sentinel-1A	06:00 desc																																					X	X	X	X	X	X	X	X
SAR-C (Sentinel-1)		1 - primary	Sentinel-1B	06:00 desc																																							X	X	X	X	X	X	X	X
SAR-C (Sentinel-1)	No	1 - primary	Sentinel-1C	06:00 desc																																													X	X	X	X	X	X	X	X
SAR-C (Sentinel-1)	No	1 - primary	Sentinel-1D	06:00 desc																																														X	X	X	X	X	X	X	X
SAR-Travers		2 - very high	Resurs-O1-1	10:15 asc								X	X
S-SAR		2 - very high	NovaSAR-S	10:30 asc																																									X	X	X	X	X	X	X	X
SAR-10		2 - very high	Kondor-E1	74.75 °																																					X	X	X	X	X	X
SAR-10		2 - very high	Kondor-E	74.75 °																																				X	X
SAR-S		2 - very high	HJ-1C	06:00 desc																																			X	X	X	X	X	X	X	X	X	X
SAR-S (NISAR)		2 - very high	NI-SAR	06:00 desc																																													X	X	X	X	X	X
L-SAR		2 - very high	Tandem-L	06:00 desc																																															X	X	X	X	X	X	X	X	X	X	X	X	X
PALSAR		2 - very high	ALOS	10:30 desc																													X	X	X	X	X	X
PALSAR-2	No	2 - very high	ALOS-2	12:00 desc																																					X	X	X	X	X	X	X	X
PALSAR-3		2 - very high	ALOS-4	12:00 desc																																												X	X	X	X	X	X	X	X
SAR		2 - very high	SeaSat	108 °	X
SAR (JERS)		2 - very high	JERS	10:45 desc															X	X	X	X	X	X	X
SAR-L		2 - very high	SAOCOM-1A	06:00 asc																																									X	X	X	X	X	X
SAR-L		2 - very high	SAOCOM-1B	06:00 asc																																											X	X	X	X	X	X
SAR-L		2 - very high	SAOCOM-2A	06:00 asc																																												X	X	X	X	X	X
SAR-L		2 - very high	SAOCOM-2B	06:00 asc																																												X	X	X	X	X	X
SAR-L (NISAR)		2 - very high	NI-SAR	06:00 desc																																													X	X	X	X	X	X
3MI		3 - high	Metop-SG-A1	09:30 desc																																															X	X	X	X	X	X	X	X
3MI		3 - high	Metop-SG-A2	09:30 desc																																																						X	X	X	X	X	X	X	X
3MI		3 - high	Metop-SG-A3	09:30 desc																																																												X	X	X	X	X	X	X	X
Polarimeters		3 - high	PACE	12:00 desc																																													X	X	X	X	X	X
POLDER		3 - high	ADEOS	10:30 desc																			X	X
POLDER		3 - high	ADEOS-2	10:30 desc																									X	X
POLDER		3 - high	PARASOL	15:20 asc																											X	X	X	X	X	X	X	X	X	X
CHRIS		4 - fair	PROBA-1	10:30 asc																								X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
COMIS		4 - fair	STSat-3	17:30 asc																																				X	X	X	X	X	X	X	X	X
DESIS		4 - fair	ISS DESIS	51.6 °																																									X	X	X	X	X	X
GSA		4 - fair	Resurs-P4	10:30 desc																																												X	X	X	X	X	X
GSA		4 - fair	Resurs-P5	10:30 desc																																												X	X	X	X	X	X
GSA		4 - fair	Resurs-P2	10:30 desc																																					X	X	X	X	X	X	X	X
GSA		4 - fair	Resurs-P3	10:30 desc																																							X	X	X	X	X	X
GSA		4 - fair	Resurs-P1	10:30 desc																																				X	X	X	X	X	X	X	X	X
HICO		4 - fair	ISS HICO	51.6 °																																X	X	X	X	X	X
HISUI		4 - fair	ISS HISUI	51.6 °																																										X	X	X	X
HSI		4 - fair	HJ-1A	10:30 desc																															X	X	X	X	X	X	X	X	X	X	X
HSI (EnMAP)		4 - fair	EnMAP	11:00 desc																																												X	X	X	X	X	X
HSI-2		4 - fair	HJ-2A	10:30 desc																																											X	X	X	X	X	X
HSI-2		4 - fair	HJ-2B	10:30 desc																																											X	X	X	X	X	X
HYC		4 - fair	PRISMA	10:30 desc																																										X	X	X	X	X	X
Hyperion	No	4 - fair	NMP-EO-1	09:45 desc																							X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
HyS-VNIR		4 - fair	GISAT-1	85.5°E																																												X	X	X	X	X	X	X	X
HyS-VNIR		4 - fair	GISAT-2	83°E																																												X	X	X	X	X	X	X	X
HySI-T		4 - fair	IMS-1	09:30 desc																															X	X	X	X	X
HySIS		4 - fair	HySIS	10:34 desc																																									X	X	X	X	X	X
COCTS		5 - marginal	HY-1E	13:30 asc																																													X	X	X	X	X	X	X
COCTS		5 - marginal	HY-1F	13:30 asc																																															X	X	X	X	X	X	X
COCTS		5 - marginal	HY-1A	10:30 desc																									X	X	X
COCTS		5 - marginal	HY-1B	10:30 desc																														X	X	X	X	X	X	X	X	X	X
COCTS		5 - marginal	HY-1C	10:30 desc																																									X	X	X	X	X	X	X
COCTS		5 - marginal	HY-1D	13:30 asc																																											X	X	X	X	X	X	X
DPC		5 - marginal	GF-5	13:30 asc																																									X	X	X	X	X	X	X	X	X
GLI		5 - marginal	ADEOS-2	10:30 desc																									X	X
GOCI		5 - marginal	COMS	128.2°E																																	X	X	X	X	X	X	X	X	X	X	X	X
GOCI-II		5 - marginal	GEO-KOMPSAT-2B	128.2°E																																											X	X	X	X	X	X	X	X	X	X	X	X
MERIS		5 - marginal	Envisat	10:00 desc																									X	X	X	X	X	X	X	X	X	X	X
MERSI-1		5 - marginal	FY-3A	09:05 desc																															X	X	X	X	X	X	X	X
MERSI-1		5 - marginal	FY-3B	14:45 asc																																	X	X	X	X	X	X	X	X	X	X	X
MERSI-1		5 - marginal	FY-3C	09:07 desc																																				X	X	X
MERSI-2		5 - marginal	FY-3G	50 °																																														X	X	X	X	X	X
MERSI-2		5 - marginal	FY-3J	50 °																																																X	X	X	X	X	X
MERSI-2	Yes	5 - marginal	FY-3D	13:29 asc																																								X	X	X	X	X	X
MERSI-2		5 - marginal	FY-3H	14:00 asc																																															X	X	X	X	X	X
MERSI-2		5 - marginal	FY-3F	10:00 desc																																														X	X	X	X	X	X
MODIS	Yes	5 - marginal	Aqua	13:30 asc																									X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
MODIS	Yes	5 - marginal	Terra	10:30 desc																						X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
MOS		5 - marginal	IRS-P3	10:30 desc																			X	X	X	X	X	X	X	X	X
MUS-uv/vis/nir		5 - marginal	SAC-E/SABIA-MAR B	10:30 desc																																														X	X	X	X	X	X
OCI		5 - marginal	PACE	12:00 desc																																													X	X	X	X	X	X
OCI (FORMOSAT)		5 - marginal	FORMOSAT-1	35 °																						X	X	X	X	X	X
OCM (OceanSat-1)		5 - marginal	OceanSat-1 (IRS-P4)	12:00 desc																						X	X	X	X	X	X	X	X	X	X	X	X
OCM (OceanSat-2)	No	5 - marginal	OceanSat-2	11:53 desc																																X	X	X	X	X	X	X	X	X	X	X	X	X
OCM (OceanSat-3)		5 - marginal	OceanSat-3	12:00 desc																																												X	X	X	X	X	X	X	X
OCTS		5 - marginal	ADEOS	10:30 desc																			X	X
OLCI	Yes	5 - marginal	Sentinel-3B	10:00 desc																																									X	X	X	X	X	X	X	X
OLCI		5 - marginal	Sentinel-3C	10:00 desc																																														X	X	X	X	X	X	X	X
OLCI		5 - marginal	Sentinel-3D	10:00 desc																																																X	X	X	X	X	X	X	X
OLCI	Yes	5 - marginal	Sentinel-3A	10:00 desc																																							X	X	X	X	X	X	X	X
OSMI		5 - marginal	KOMPSAT-1	10:50 asc																						X	X	X	X	X	X	X	X	X	X
SeaWiFS		5 - marginal	OrbView-2/SeaStar	12:00 desc																				X	X	X	X	X	X	X	X	X	X	X	X	X	X
SGLI		5 - marginal	GCOM-C	10:30 desc																																								X	X	X	X	X	X
Trasser		5 - marginal	Okean-O-1	82.5 °																						X	X
Trasser		5 - marginal	Okean-O1-3	82.5 °											X	X	X
CZCS		5 - marginal	Nimbus-7	12:00 desc	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
EPIC (DSCOVR)	Yes	5 - marginal	DSCOVR	N/A																																						X	X	X	X	X	X	X	X	X
METimage		5 - marginal	Metop-SG-A1	09:30 desc																																															X	X	X	X	X	X	X	X
METimage		5 - marginal	Metop-SG-A2	09:30 desc																																																						X	X	X	X	X	X	X	X
METimage		5 - marginal	Metop-SG-A3	09:30 desc																																																												X	X	X	X	X	X	X	X
MSU-MR-MP		5 - marginal	Meteor-MP N1	15:30 asc																																																X	X	X	X	X	X	X	X
MSU-MR-MP		5 - marginal	Meteor-MP N2	09:30 desc																																																	X	X	X	X	X	X	X	X
TANSO-CAI/2		5 - marginal	GOSAT-2	13:00 desc																																									X	X	X	X	X	X
VIIRS	Yes	5 - marginal	SNPP	13:25 asc																																		X	X	X	X	X	X	X	X	X	X	X
VIIRS		5 - marginal	JPSS-3	13:30 asc																																																		X	X	X	X	X	X	X	X
VIIRS		5 - marginal	JPSS-4	13:30 asc																																																							X	X	X	X	X	X	X	X
VIIRS	Yes	5 - marginal	NOAA-20	13:25 asc																																								X	X	X	X	X	X	X	X
VIIRS		5 - marginal	JPSS-2	13:30 asc																																													X	X	X	X	X	X	X	X

All instruments for measuring Oil spill cover

Instruments	Relevance	Operational limitations
SAR-X/Ku	1 - primary
BRLK “Briz”	1 - primary
COSI	1 - primary
CSG-SAR	1 - primary
HRWS-SAR	1 - primary
ICEYE SAR	1 - primary
MeteoSAR	1 - primary
RLSBO	1 - primary
SAR-2000	1 - primary
SAR-X	1 - primary
SAR-X (Paz (SEOSAR))	1 - primary
SAR-X (RISAT-2)	1 - primary
Severjanin-M	1 - primary
W-SAR	1 - primary
XSAR	1 - primary
AMI-SAR	1 - primary
ASAR	1 - primary
SAR (RadarSat-1)	1 - primary
SAR RCM	1 - primary
SAR-C (GF-3)	1 - primary
SAR-C (RISAT)	1 - primary
SAR-C (Sentinel-1)	1 - primary
SAR-Travers	2 - very high
S-SAR	2 - very high
SAR-10	2 - very high
SAR-S	2 - very high
SAR-S (NISAR)	2 - very high
SAR-S (NovaSAR)	2 - very high
InSAR	2 - very high
L-SAR	2 - very high
PALSAR	2 - very high
PALSAR-2	2 - very high
PALSAR-3	2 - very high
SAR	2 - very high
SAR (JERS)	2 - very high
SAR-L	2 - very high
SAR-L (NISAR)	2 - very high
3MI	3 - high
Polarimeters	3 - high
POLDER	3 - high
APS	3 - high
CHRIS	4 - fair
COMIS	4 - fair
DESIS	4 - fair
GSA	4 - fair
HICO	4 - fair
HISUI	4 - fair
HSI	4 - fair
HSI (EnMAP)	4 - fair
HSI-2	4 - fair
HYC	4 - fair
Hyperion	4 - fair
HyS-VNIR	4 - fair
HySI-T	4 - fair
HySIS	4 - fair
OHIS	4 - fair
COCTS	5 - marginal
DPC	5 - marginal
GLI	5 - marginal
GOCI	5 - marginal
GOCI-II	5 - marginal
MERIS	5 - marginal
MERSI-1	5 - marginal
MERSI-2	5 - marginal
MODIS	5 - marginal
MOS	5 - marginal
MUS-uv/vis/nir	5 - marginal
OCI	5 - marginal
OCI (FORMOSAT)	5 - marginal
OCM (OceanSat-1)	5 - marginal
OCM (OceanSat-2)	5 - marginal
OCM (OceanSat-3)	5 - marginal
OCS	5 - marginal
OCTS	5 - marginal
OLCI	5 - marginal
OSMI	5 - marginal
SeaWiFS	5 - marginal
SGLI	5 - marginal
Trasser	5 - marginal
CZCS	5 - marginal
EPIC (DSCOVR)	5 - marginal
METimage	5 - marginal
MSU-MR-MP	5 - marginal
SZS	5 - marginal
TANSO-CAI/2	5 - marginal
VIIRS	5 - marginal