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 such as the uncertainty, the vertical resolution, and the frequency and spatial resolution of the retrieved measurement in comparison with the space-time variability of the geophysical parameter. For this particular Variable, the rating is driven by: the spectral resolution; the scanning mode (cross-nadir, limb). RATING CRITERIA:
1	High-resolution TIR spectrometer
2	Medium-resolution TIR spectrometer
3	Coarse-resolution TIR spectrometer
4	TIR spectrometer scanning the limb mechanically or electronically
5	TIR spectrometer limb scanning by solar occultation

Measurement timeline for CFC-11

Definition:

3D field of amount of CFC-11 (Trichlorofluoromethane = Freon-11,expressed in moles) divided by the total amount of all constituents in dry air (also expressed in moles).

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

Found 51 results

This table has a large number of results.

Hide lower rated instruments

Hide inactive instruments

Instrument	NRT?	Relevance	Satellite	Orbit	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
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
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
IASI	Yes	2 - very high	Metop-A	08:46 desc																X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
IASI	Yes	2 - very high	Metop-B	09:30 desc																						X	X	X	X	X	X	X	X	X	X	X	X	X
IASI		2 - very high	Metop-C	09:30 desc																												X	X	X	X	X	X	X	X	X	X
IKFS-3		2 - very high	Meteor-MP N1	15:30 asc																																			X	X	X	X	X	X	X	X
IKFS-3		2 - very high	Meteor-MP N2	09:30 desc																																				X	X	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
GIIRS	Yes	3 - high	FY-4A	104.7°E																										X	X	X	X	X	X
GIIRS		3 - high	FY-4B	123.5°E																															X	X	X	X	X	X	X	X
GIIRS		3 - high	FY-4C	86.5°E																																			X	X	X	X	X	X	X	X
GIIRS		3 - high	FY-4D	105°E																																				X	X	X	X	X	X	X	X
GIIRS		3 - high	FY-4E	86.5°E																																					X	X	X	X	X	X	X	X
GIIRS		3 - high	FY-4F	105°E																																								X	X	X	X	X	X	X	X
GIIRS		3 - high	FY-4G	86.5°E																																											X	X	X	X	X	X	X	X
IRFS-GS		3 - high	Electro-M N1	14.5°W																																			X	X	X	X	X	X	X	X	X	X	X
IRFS-GS		3 - high	Electro-M N2	76°E																																				X	X	X	X	X	X	X	X	X	X	X
IRFS-GS		3 - high	Electro-M N3	165.8°E																																							X	X	X	X	X	X	X	X	X	X	X
IRS		3 - high	MTG-S1	0°																																	X	X	X	X	X	X	X	X	X
IRS		3 - high	MTG-S2	0°																																								X	X	X	X	X	X	X	X	X
AIRS	Yes	3 - high	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	3 - high	NOAA-20	13:25 asc																											X	X	X	X	X	X	X	X
CrIS		3 - high	JPSS-2	13:30 asc																																X	X	X	X	X	X	X	X
CrIS	Yes	3 - high	SNPP	13:25 asc																					X	X	X	X	X	X	X	X	X	X	X
CrIS		3 - high	JPSS-3	13:30 asc																																					X	X	X	X	X	X	X	X
CrIS		3 - high	JPSS-4	13:30 asc																																										X	X	X	X	X	X	X	X
HIRAS	Yes	3 - high	FY-3D	13:29 asc																											X	X	X	X	X	X
HIRAS-2		3 - high	FY-3E	05:30 desc																															X	X	X	X	X	X
HIRAS-2		3 - high	FY-3H	14:00 asc																																		X	X	X	X	X	X
HIRAS-2		3 - high	FY-3F	10:00 desc																																	X	X	X	X	X	X
HIRAS-2		3 - high	FY-3I	05:30 desc																																			X	X	X	X	X	X
IKFS-2		3 - high	Meteor-M N2	09:30 asc																								X	X	X	X	X	X	X	X
IKFS-2		3 - high	Meteor-M N2-1	15:09 asc																											X
IKFS-2		3 - high	Meteor-M N2-2	15:00 asc																													X
IKFS-2		3 - high	Meteor-M N2-3	09:00 desc																															X	X	X	X	X	X
IKFS-2		3 - high	Meteor-M N2-4	15:00 asc																																X	X	X	X	X	X
IKFS-2		3 - high	Meteor-M N2-5	15:00 desc																																		X	X	X	X	X	X
IKFS-2		3 - high	Meteor-M N2-6	09:00 asc																																			X	X	X	X	X	X
FORUM		3 - high	FORUM	09:30 desc																																				X	X	X	X
MIPAS		4 - fair	Envisat	10:00 desc												X	X	X	X	X	X	X	X	X	X	X
TES-limb		4 - fair	Aura	13:45 asc														X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
CLAES		4 - fair	UARS	57 °	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
ILAS-II		4 - fair	ADEOS-2	10:30 desc												X	X
ACE-FTS		5 - marginal	SCISAT-1	73.9 °													X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
AIUS		5 - marginal	GF-5	13:30 asc																												X	X	X	X	X	X	X	X	X
AIUS		5 - marginal	GF-5-02	13:30 asc																															X	X	X	X	X	X	X	X
ILAS-I		5 - marginal	ADEOS	10:30 desc						X	X

All instruments for measuring CFC-11

Instruments	Relevance	Operational limitations
IASI-NG	1 - primary
TES-nadir	1 - primary
IMG	1 - primary
IASI	2 - very high
IKFS-3	2 - very high
TANSO-FTS	2 - very high
TANSO-FTS/2	2 - very high
GIIRS	3 - high
IRFS-GS	3 - high
IRS	3 - high
AIRS	3 - high
CrIS	3 - high
HIRAS	3 - high
HIRAS-2	3 - high
IKFS-2	3 - high
FORUM	3 - high
IR spectrometer	3 - high
MIPAS	4 - fair
TES-limb	4 - fair
CLAES	4 - fair
ILAS-II	4 - fair
ACE-FTS	5 - marginal
AIUS	5 - marginal
ILAS-I	5 - marginal