WMO OSCAR | Gap analyses by variable or by type of mission or by WIGOS subcomponent

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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 () 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

Subcomponent 1

Subcomponent 2

Subcomponent 3

Subcomponent 4

Instrument types

ECT range

Orbit types

Longitude range

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 spectral range (IR or MW, not in priority order); the covered spectral range. RATING CRITERIA:
1	IR spectrometer covering the range 3.5-15 mm
2	IR spectrometer covering the range 5-15 mm
3	MW radiometer covering the range from 7 GHz onwards
4	MW radiometer covering the range from 10 GHz onwards
5	MW radiometer covering the range from 19 GHz onwards

Measurement timeline for Long-wave Earth surface emissivity

Definition: Emissivity of the Earth surface in the thermal IR, function of the wavelength

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

Found 93 results

This table has a large number of results.

Hide lower rated instruments

Hide inactive instruments

Instrument	NRT?	Relevance	Satellite	Orbit	1969	1970	1971	1972	1973	1974	1975	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	2037	2038	2039	2040	2041	2042	2043	2044	2045
AIRS	Yes	1 - primary	Aqua	13:30 asc																																		X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
CrIS	Yes	1 - primary	NOAA-20	13:25 asc																																																	X	X	X	X	X	X	X	X
CrIS		1 - primary	JPSS-2	13:30 asc																																																						X	X	X	X	X	X	X	X
CrIS	Yes	1 - primary	SNPP	13:25 asc																																											X	X	X	X	X	X	X	X	X	X	X
CrIS		1 - primary	JPSS-3	13:30 asc																																																											X	X	X	X	X	X	X	X
CrIS		1 - primary	JPSS-4	13:30 asc																																																																X	X	X	X	X	X	X	X
GIIRS	Yes	1 - primary	FY-4A	104.7°E																																																X	X	X	X	X	X
GIIRS		1 - primary	FY-4B	123.5°E																																																					X	X	X	X	X	X	X	X
GIIRS		1 - primary	FY-4C	86.5°E																																																									X	X	X	X	X	X	X	X
GIIRS		1 - primary	FY-4D	105°E																																																										X	X	X	X	X	X	X	X
GIIRS		1 - primary	FY-4E	86.5°E																																																											X	X	X	X	X	X	X	X
GIIRS		1 - primary	FY-4F	105°E																																																														X	X	X	X	X	X	X	X
GIIRS		1 - primary	FY-4G	86.5°E																																																																	X	X	X	X	X	X	X	X
HIRAS	Yes	1 - primary	FY-3D	13:29 asc																																																	X	X	X	X	X	X
HIRAS-2		1 - primary	FY-3E	05:30 desc																																																					X	X	X	X	X	X
HIRAS-2		1 - primary	FY-3H	14:00 asc																																																								X	X	X	X	X	X
HIRAS-2		1 - primary	FY-3F	10:00 desc																																																							X	X	X	X	X	X
HIRAS-2		1 - primary	FY-3I	05:30 desc																																																									X	X	X	X	X	X
IASI	Yes	1 - primary	Metop-A	08:46 desc																																						X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
IASI	Yes	1 - primary	Metop-B	09:30 desc																																												X	X	X	X	X	X	X	X	X	X	X	X	X
IASI		1 - primary	Metop-C	09:30 desc																																																		X	X	X	X	X	X	X	X	X	X
IASI-NG		1 - primary	Metop-SG-A2	09:30 desc																																																															X	X	X	X	X	X	X	X
IASI-NG		1 - primary	Metop-SG-A3	09:30 desc																																																																					X	X	X	X	X	X	X	X
IASI-NG		1 - primary	Metop-SG-A1	09:30 desc																																																								X	X	X	X	X	X	X	X
IKFS-3		1 - primary	Meteor-MP N1	15:30 asc																																																									X	X	X	X	X	X	X	X
IKFS-3		1 - primary	Meteor-MP N2	09:30 desc																																																										X	X	X	X	X	X	X	X
IRFS-GS		1 - primary	Electro-M N1	14.5°W																																																									X	X	X	X	X	X	X	X	X	X	X
IRFS-GS		1 - primary	Electro-M N2	76°E																																																										X	X	X	X	X	X	X	X	X	X	X
IRFS-GS		1 - primary	Electro-M N3	165.8°E																																																													X	X	X	X	X	X	X	X	X	X	X
IRS		1 - primary	MTG-S1	0°																																																							X	X	X	X	X	X	X	X	X
IRS		1 - primary	MTG-S2	0°																																																														X	X	X	X	X	X	X	X	X
TES-nadir		1 - primary	Aura	13:45 asc																																				X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
IMG		1 - primary	ADEOS	10:30 desc																												X	X
IKFS-2		2 - very high	Meteor-M N2	09:30 asc																																														X	X	X	X	X	X	X	X
IKFS-2		2 - very high	Meteor-M N2-1	15:09 asc																																																	X
IKFS-2		2 - very high	Meteor-M N2-2	15:00 asc																																																			X
IKFS-2		2 - very high	Meteor-M N2-3	09:00 desc																																																					X	X	X	X	X	X
IKFS-2		2 - very high	Meteor-M N2-4	15:00 asc																																																						X	X	X	X	X	X
IKFS-2		2 - very high	Meteor-M N2-5	15:00 desc																																																								X	X	X	X	X	X
IKFS-2		2 - very high	Meteor-M N2-6	09:00 asc																																																									X	X	X	X	X	X
TANSO-FTS	No	2 - very high	GOSAT	13:00 desc																																									X	X	X	X	X	X	X	X	X	X	X	X	X
TANSO-FTS/2		2 - very high	GOSAT-2	13:00 desc																																																		X	X	X	X	X	X
FORUM		2 - very high	FORUM	09:30 desc																																																										X	X	X	X
IRIS-B		2 - very high	Nimbus-3	12:00 desc	X	X	X	X
IRIS-D		2 - very high	Nimbus-4	12:00 desc		X	X	X	X	X	X	X	X	X	X	X
AMSR		3 - high	ADEOS-2	10:30 desc																																		X	X
AMSR-3		3 - high	GOSAT-GW	13:30 asc																																																							X	X	X	X	X	X	X	X
AMSR-E	No	3 - high	Aqua	13:30 asc																																		X	X	X	X	X	X	X	X	X	X
AMSR2	No	3 - high	GCOM-W	13:30 asc																																												X	X	X	X	X	X	X	X	X	X
MTVZA-GY-MP		3 - high	Meteor-MP N1	15:30 asc																																																									X	X	X	X	X	X	X	X
MTVZA-GY-MP		3 - high	Meteor-MP N2	09:30 desc																																																										X	X	X	X	X	X	X	X
MTVZA-OK (MW)		3 - high	SICH-1M	82.5 °																																				X	X	X
CIMR		3 - high	CIMR	06:00 desc																																																												X	X	X	X	X	X	X	X
MWRI (HY-2)		3 - high	HY-2A	06:00 desc																																											X	X	X	X	X	X
MWRI (HY-2)		3 - high	HY-2B	06:00 desc																																																		X	X	X	X	X	X
SMMR		3 - high	Nimbus-7	12:00 desc										X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
SMMR		3 - high	SeaSat	108 °										X
WindSat	No	3 - high	Coriolis	06:10 desc																																			X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
MSMR		3 - high	OceanSat-1 (IRS-P4)	12:00 desc																															X	X	X	X	X	X	X	X	X	X	X	X
GMI (core)	No	4 - fair	GPM Core Observatory	65 °																																														X	X	X	X	X	X	X	X	X	X	X	X	X
MTVZA-GY		4 - fair	Meteor-M N1	09:30 desc																																									X	X	X	X	X	X
MTVZA-GY		4 - fair	Meteor-M N2	09:30 asc																																														X	X	X	X
MTVZA-GY		4 - fair	Meteor-M N2-1	15:09 asc																																																	X
MTVZA-GY		4 - fair	Meteor-M N2-2	15:00 asc																																																			X	X	X	X	X	X
MTVZA-GY		4 - fair	Meteor-M N2-3	09:00 desc																																																					X	X	X	X	X	X
MTVZA-GY		4 - fair	Meteor-M N2-4	15:00 asc																																																						X	X	X	X	X	X
MTVZA-GY		4 - fair	Meteor-M N2-5	15:00 desc																																																								X	X	X	X	X	X
MTVZA-GY		4 - fair	Meteor-M N2-6	09:00 asc																																																									X	X	X	X	X	X
MWRI		4 - fair	FY-3A	09:05 desc																																								X
MWRI		4 - fair	FY-3B	14:45 asc																																										X	X	X	X	X	X	X	X	X	X	X
MWRI		4 - fair	FY-3C	09:07 desc																																													X	X	X	X	X	X	X	X
MWRI	Yes	4 - fair	FY-3D	13:29 asc																																																	X	X	X	X	X	X
MWRI		4 - fair	FY-3H	14:00 asc																																																								X	X	X	X	X	X
MWRI		4 - fair	FY-3F	10:00 desc																																																							X	X	X	X	X	X
MWRI		4 - fair	FY-3G	50 °																																																							X	X	X	X	X	X
MWRI		4 - fair	FY-3J	50 °																																																									X	X	X	X	X	X
TMI		4 - fair	TRMM	35 °																													X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
MADRAS		5 - marginal	Megha-Tropiques	20 °																																											X	X	X
MTVZA		5 - marginal	Meteor-3M	09:15 asc																																	X	X	X	X	X	X
MWI (MetOp-SG)		5 - marginal	Metop-SG-B1	09:30 desc																																																									X	X	X	X	X	X	X	X
MWI (MetOp-SG)		5 - marginal	Metop-SG-B2	09:30 desc																																																															X	X	X	X	X	X	X	X
MWI (MetOp-SG)		5 - marginal	Metop-SG-B3	09:30 desc																																																																						X	X	X	X	X	X	X	X
SSM/I		5 - marginal	DMSP-F08	06:10 desc																			X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
SSM/I		5 - marginal	DMSP-F10	07:30 desc																						X	X	X	X	X	X	X	X
SSM/I		5 - marginal	DMSP-F11	05:00 desc																							X	X	X	X	X	X	X	X	X	X
SSM/I		5 - marginal	DMSP-F12	03:35 desc																										X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
SSM/I		5 - marginal	DMSP-F13	05:51 desc																											X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
SSM/I	No	5 - marginal	DMSP-F14	17:00 asc																													X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
SSM/I	No	5 - marginal	DMSP-F15	14:50 asc																															X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
SSMIS	No	5 - marginal	DMSP-F16	06:20 asc																																			X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
SSMIS	No	5 - marginal	DMSP-F17	06:40 desc																																						X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
SSMIS	No	5 - marginal	DMSP-F18	04:50 desc																																									X	X	X	X	X	X	X	X	X	X	X	X	X
SSMIS	No	5 - marginal	DMSP-F19	06:36 desc																																														X	X	X

All instruments for measuring Long-wave Earth surface emissivity

Instruments	Relevance	Operational limitations
AIRS	1 - primary
CrIS	1 - primary
GIIRS	1 - primary
HIRAS	1 - primary
HIRAS-2	1 - primary
IASI	1 - primary
IASI-NG	1 - primary
IKFS-3	1 - primary
IRFS-GS	1 - primary
IRS	1 - primary
TES-nadir	1 - primary
IMG	1 - primary
IKFS-2	2 - very high
TANSO-FTS	2 - very high
TANSO-FTS/2	2 - very high
FORUM	2 - very high
IR spectrometer	2 - very high
IRIS-B	2 - very high
IRIS-D	2 - very high
AMSR	3 - high
AMSR-3	3 - high
AMSR-E	3 - high
AMSR2	3 - high
MTVZA-GY-MP	3 - high
MTVZA-OK (MW)	3 - high
CIMR	3 - high
MWRI (HY-2)	3 - high
SMMR	3 - high
WindSat	3 - high
MSMR	3 - high
GMI (constellation)	4 - fair
GMI (core)	4 - fair
MTVZA-GY	4 - fair
MWRI	4 - fair
TMI	4 - fair
MADRAS	5 - marginal
MTVZA	5 - marginal
MWI (MetOp-SG)	5 - marginal
SSM/I	5 - marginal
SSMIS	5 - marginal