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: whether measuring total (TSI) and/or spectral solar irradiance; the covered spectral range. RATING CRITERIA:
1	Line-resolving spectrometer in the water vapour bands around 6.3 and 18 mm, and CO2 band around 15 mm
2	Line-resolving spectrometer in the water vapour band around 6.3 mm, and CO2 bands around 4.3 and 15 mm
3	Line-resolving spectrometer in the water vapour band around 6.3 mm, and the CO2 band around 15 mm
4	Short-wave spectrometer covering UV + VIS + NIR + SWIR
5	Short-wave spectrometer covering UV + VIS + NIR or (UV + VIS) or (NIR + SWIR)

Measurement timeline for Upward spectral radiance at TOA

Definition:

Upward radiant power measured at the top of the atmosphere per area unit, per solid angle, and per wavelength interval. Spectral range 0.2-200 µm. Resolving power ?/??= 1000. Accuracy quoted as SNR (Signal-to-Noise-Ratio), actually SNR^-1 so that smaller figure means better performance, as usual.

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

Found 63 results

This table has a large number of results.

Hide lower rated instruments

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Instrument	NRT?	Relevance	Satellite	Orbit	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
FORUM		1 - primary	FORUM	09:30 desc																																X	X	X	X
IASI	Yes	2 - very high	Metop-A	07:50 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
IASI-NG		2 - very high	Metop-SG-A2	09:30 desc																																					X	X	X	X	X	X	X	X
IASI-NG		2 - very high	Metop-SG-A3	09:30 desc																																											X	X	X	X	X	X	X	X
IASI-NG		2 - very high	Metop-SG-A1	09:30 desc																														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
TES-nadir		2 - very high	Aura	13:45 asc										X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
IMG		2 - very high	ADEOS	10:30 desc		X	X
AIRS	Yes	2 - very 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	2 - very high	NOAA-20	13:25 asc																							X	X	X	X	X	X	X	X
CrIS		2 - very high	JPSS-2	13:30 asc																												X	X	X	X	X	X	X	X
CrIS	Yes	2 - very high	SNPP	13:25 asc																	X	X	X	X	X	X	X	X	X	X	X
CrIS		2 - very high	JPSS-3	13:30 asc																																	X	X	X	X	X	X	X	X
CrIS		2 - very high	JPSS-4	13:30 asc																																						X	X	X	X	X	X	X	X
GIIRS	Yes	2 - very high	FY-4A	104.7°E																						X	X	X	X	X	X
GIIRS		2 - very high	FY-4B	123.5°E																											X	X	X	X	X	X	X	X
GIIRS		2 - very high	FY-4C	86.5°E																															X	X	X	X	X	X	X	X
GIIRS		2 - very high	FY-4D	105°E																																X	X	X	X	X	X	X	X
GIIRS		2 - very high	FY-4E	86.5°E																																	X	X	X	X	X	X	X	X
GIIRS		2 - very high	FY-4F	105°E																																				X	X	X	X	X	X	X	X
GIIRS		2 - very high	FY-4G	86.5°E																																							X	X	X	X	X	X	X	X
HIRAS	Yes	2 - very high	FY-3D	13:29 asc																							X	X	X	X	X	X
HIRAS-2		2 - very high	FY-3E	05:30 desc																											X	X	X	X	X	X
HIRAS-2		2 - very high	FY-3H	14:00 asc																														X	X	X	X	X	X
HIRAS-2		2 - very high	FY-3F	10:00 desc																													X	X	X	X	X	X
HIRAS-2		2 - very high	FY-3I	05:30 desc																															X	X	X	X	X	X
IRFS-GS		2 - very high	Electro-M N1	14.5°W																															X	X	X	X	X	X	X	X	X	X	X
IRFS-GS		2 - very high	Electro-M N2	76°E																																X	X	X	X	X	X	X	X	X	X	X
IRFS-GS		2 - very high	Electro-M N3	165.8°E																																			X	X	X	X	X	X	X	X	X	X	X
IRS		2 - very high	MTG-S1	0°																														X	X	X	X	X	X	X	X	X
IRS		2 - very high	MTG-S2	0°																																								X	X	X	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
TANSO-FTS	No	3 - high	GOSAT	13:00 desc															X	X	X	X	X	X	X	X	X	X	X	X	X
TANSO-FTS/2		3 - high	GOSAT-2	13:00 desc																								X	X	X	X	X	X
ACS-nadir		4 - fair	Meteor-MP N1	15:30 asc																															X	X	X	X	X	X	X	X
ACS-nadir		4 - fair	Meteor-MP N2	09:30 desc																																X	X	X	X	X	X	X	X
SCIAMACHY-nadir		4 - fair	Envisat	10:00 desc								X	X	X	X	X	X	X	X	X	X	X
Sentinel-5		4 - fair	Metop-SG-A2	09:30 desc																																					X	X	X	X	X	X	X	X
Sentinel-5		4 - fair	Metop-SG-A3	09:30 desc																																											X	X	X	X	X	X	X	X
Sentinel-5		4 - fair	Metop-SG-A1	09:30 desc																														X	X	X	X	X	X	X	X
TROPOMI		4 - fair	Sentinel-5P	13:30 asc																							X	X	X	X	X	X	X	X
HySICS		4 - fair	ISS CLARREO-PF	51.6 °																													X	X
GOME		5 - marginal	ERS-2	10:30 desc	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
GOME-2	Yes	5 - marginal	Metop-A	07:50 desc												X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
GOME-2	Yes	5 - marginal	Metop-B	09:30 desc																		X	X	X	X	X	X	X	X	X	X	X	X	X
GOME-2		5 - marginal	Metop-C	09:30 desc																								X	X	X	X	X	X	X	X	X	X
Sentinel-4		5 - marginal	MTG-S1	0°																														X	X	X	X	X	X	X	X	X
Sentinel-4		5 - marginal	MTG-S2	0°																																								X	X	X	X	X	X	X	X	X
EMI		5 - marginal	GF-5	13:30 asc																								X	X	X	X	X	X	X	X	X
EMI		5 - marginal	GF-5-02	13:30 asc																											X	X	X	X	X	X	X	X
GEMS		5 - marginal	GEO-KOMPSAT-2B	128.2°E																										X	X	X	X	X	X	X	X	X	X	X	X
OMI		5 - marginal	Aura	13:45 asc										X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
OMS-nadir		5 - marginal	FY-3F	10:00 desc																													X	X	X	X	X	X
TEMPO		5 - marginal	TEMPO	100°W																												X	X	X	X

All instruments for measuring Upward spectral radiance at TOA

Instruments	Relevance	Operational limitations
FORUM	1 - primary
IR spectrometer	1 - primary
IASI	2 - very high
IASI-NG	2 - very high
IKFS-3	2 - very high
TES-nadir	2 - very high
IMG	2 - very high
AIRS	2 - very high
CrIS	2 - very high
GIIRS	2 - very high
HIRAS	2 - very high
HIRAS-2	2 - very high
IRFS-GS	2 - very high
IRS	2 - very high
IKFS-2	3 - high
TANSO-FTS	3 - high
TANSO-FTS/2	3 - high
ACS-nadir	4 - fair
SCIAMACHY-nadir	4 - fair
Sentinel-5	4 - fair
TROPOMI	4 - fair
HySICS	4 - fair
SW spectrometer	4 - fair
GOME	5 - marginal
GOME-2	5 - marginal
Sentinel-4	5 - marginal
EMI	5 - marginal
GEMS	5 - marginal
OMI	5 - marginal
OMS-nadir	5 - marginal
TEMPO	5 - marginal
UVAS	5 - marginal