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

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.

Measurement timeline for Cloud drop effective radius

Definition:

Size distribution of liquid water drops, assimilated to spheres of the same volume. Considered as both a 3D field throughout the troposphere and a 2D field at the top of cloud surface.

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

Found 200 results

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	2045
DPR	No	1 - primary	GPM Core Observatory	65 °																																					X	X	X	X	X	X	X
Rainradar		1 - primary	FY-3RM-1	50 °																																											X	X	X	X	X	X
Rainradar		1 - primary	FY-3RM-2	50 °																																														X	X	X	X	X	X
PR		1 - primary	TRMM	35 °																				X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
CPR (CloudSat)		1 - primary	CloudSat	13:30 asc																													X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
CPR (Earth-CARE)		1 - primary	EarthCARE	14:00 desc																																												X	X	X	X
MWI (MetOp-SG)		2 - very high	Metop-SG-B1	09:30 desc																																															X	X	X	X	X	X	X	X
MWI (MetOp-SG)		2 - very high	Metop-SG-B2	09:30 desc																																																						X	X	X	X	X	X	X	X
MWI (MetOp-SG)		2 - very high	Metop-SG-B3	09:30 desc																																																													X	X	X	X	X	X	X	X
MTVZA		2 - very high	Meteor-3M	09:15 asc																								X	X	X	X	X	X
MTVZA-GY		2 - very high	Meteor-M N1	09:30 desc																																X	X	X	X	X	X
MTVZA-GY		2 - very high	Meteor-M N2	09:30 asc																																					X	X	X	X
MTVZA-GY		2 - very high	Meteor-M N2-1	15:09 asc																																								X
MTVZA-GY		2 - very high	Meteor-M N2-2	15:00 asc																																										X	X	X	X	X	X
MTVZA-GY		2 - very high	Meteor-M N2-3	15:09 asc																																											X	X	X	X	X	X
MTVZA-GY		2 - very high	Meteor-M N2-4	09:00 desc																																												X	X	X	X	X	X
MTVZA-GY		2 - very high	Meteor-M N2-5	15:00 desc																																														X	X	X	X	X	X
MTVZA-GY		2 - very high	Meteor-M N2-6	09:00 asc																																															X	X	X	X	X	X
MTVZA-GY-MP		2 - very high	Meteor-MP N1	15:30 asc																																																X	X	X	X	X	X	X	X
MTVZA-GY-MP		2 - very high	Meteor-MP N2	09:30 desc																																																	X	X	X	X	X	X	X	X
MTVZA-OK (MW)		2 - very high	SICH-1M	82.5 °																											X	X	X
SSMIS	No	2 - very high	DMSP-F16	06:20 asc																										X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
SSMIS	No	2 - very high	DMSP-F17	06:20 desc																													X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
SSMIS	No	2 - very high	DMSP-F18	07:08 desc																																X	X	X	X	X	X	X	X	X	X	X	X
SSMIS	No	2 - very high	DMSP-F19	06:36 desc																																					X	X	X
ATMS	Yes	2 - very high	NOAA-20	13:25 asc																																								X	X	X	X	X	X	X	X
ATMS		2 - very high	JPSS-2	13:30 asc																																													X	X	X	X	X	X	X	X
ATMS	Yes	2 - very high	SNPP	13:25 asc																																		X	X	X	X	X	X	X	X	X	X
ATMS		2 - very high	JPSS-3	13:30 asc																																																	X	X	X	X	X	X	X	X
ATMS		2 - very high	JPSS-4	13:30 asc																																																						X	X	X	X	X	X	X	X
MWS		2 - very high	Metop-SG-A1	09:30 desc																																														X	X	X	X	X	X	X	X
MWS		2 - very high	Metop-SG-A2	09:30 desc																																																					X	X	X	X	X	X	X	X
MWS		2 - very high	Metop-SG-A3	09:30 desc																																																												X	X	X	X	X	X	X	X
MWHS-2	Yes	2 - very high	FY-3C	10:15 desc																																				X	X	X	X	X	X	X	X
MWHS-2	Yes	2 - very high	FY-3D	14:00 asc																																								X	X	X	X	X	X
MWHS-2		2 - very high	FY-3E	06:00 desc																																											X	X	X	X	X	X
MWHS-2		2 - very high	FY-3F	10:00 desc																																												X	X	X	X	X	X
MWHS-2		2 - very high	FY-3G	14:00 asc																																													X	X	X	X	X	X
MWHS-2		2 - very high	FY-3H	06:00 desc																																															X	X	X	X	X	X
MWHS-2		2 - very high	FY-3RM-1	50 °																																											X	X	X	X	X	X
MWHS-2		2 - very high	FY-3RM-2	50 °																																														X	X	X	X	X	X
AMSU-A	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
AMSU-A	Yes	2 - very high	Metop-A	09:30 desc																													X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
AMSU-A	Yes	2 - very high	Metop-B	09:30 desc																																			X	X	X	X	X	X	X	X	X	X	X	X	X
AMSU-A		2 - very high	Metop-C	09:30 desc																																									X	X	X	X	X	X	X	X
AMSU-A	Yes	2 - very high	NOAA-15	06:54 desc																					X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
AMSU-A		2 - very high	NOAA-16	09:01 desc																							X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
AMSU-A		2 - very high	NOAA-17	07:03 desc																									X	X
AMSU-A	Yes	2 - very high	NOAA-18	08:32 desc																												X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
AMSU-A	Yes	2 - very high	NOAA-19	04:46 desc																																X	X	X	X	X	X	X	X	X	X	X	X
AMSU-B		2 - very high	NOAA-15	06:54 desc																					X	X	X	X	X	X	X	X	X	X	X	X	X	X
AMSU-B		2 - very high	NOAA-16	09:01 desc																							X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
AMSU-B		2 - very high	NOAA-17	07:03 desc																									X	X	X	X	X	X	X	X	X	X	X	X
MHS	Yes	2 - very high	Metop-A	09:30 desc																													X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
MHS	Yes	2 - very high	Metop-B	09:30 desc																																			X	X	X	X	X	X	X	X	X	X	X	X	X
MHS		2 - very high	Metop-C	09:30 desc																																									X	X	X	X	X	X	X	X
MHS	Yes	2 - very high	NOAA-18	08:32 desc																												X	X	X	X	X	X	X	X	X	X	X	X
MHS	Yes	2 - very high	NOAA-19	04:46 desc																																X	X	X	X	X	X	X	X	X	X	X	X
SSM/T-2		2 - very high	DMSP-F11	05:00 desc														X	X	X	X	X	X	X	X	X	X
SSM/T-2		2 - very high	DMSP-F12	03:35 desc																	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
SSM/T-2	No	2 - very high	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/T-2	No	2 - very high	DMSP-F15	14:50 asc																						X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
AATSR		3 - high	Envisat	10:00 desc																									X	X	X	X	X	X	X	X	X	X	X
ATSR-2		3 - high	ERS-2	10:30 desc																		X	X	X	X	X	X	X	X	X	X	X	X	X	X
SLSTR	Yes	3 - high	Sentinel-3A	10:00 desc																																							X	X	X	X	X	X	X	X
SLSTR	Yes	3 - high	Sentinel-3B	10:00 desc																																									X	X	X	X	X	X	X	X
SLSTR		3 - high	Sentinel-3C	10:00 desc																																														X	X	X	X	X	X	X	X
SLSTR		3 - high	Sentinel-3D	10:00 desc																																																X	X	X	X	X	X	X	X
ABI		3 - high	GOES-16	75.2°W																																							X	X	X	X	X	X	X	X	X	X	X	X
ABI	Yes	3 - high	GOES-17	137.2°W																																									X	X	X	X	X	X	X	X	X	X	X	X
ABI		3 - high	GOES-T	137°W																																											X	X	X	X	X	X	X	X	X	X	X	X
ABI		3 - high	GOES-U	75°W																																																X	X	X	X	X	X	X	X	X	X	X	X
AGRI	Yes	3 - high	FY-4A	105°E																																							X	X	X	X	X	X
AGRI		3 - high	FY-4B	105°E																																											X	X	X	X	X	X	X	X
AGRI		3 - high	FY-4C	86.5°E																																												X	X	X	X	X	X	X	X
AGRI		3 - high	FY-4D	105°E																																														X	X	X	X	X	X	X	X
AGRI		3 - high	FY-4E	86.5°E																																																		X	X	X	X	X	X	X	X
AGRI		3 - high	FY-4F	105°E																																																					X	X	X	X	X	X	X	X
AGRI		3 - high	FY-4G	86.5°E																																																								X	X	X	X	X	X	X	X
AHI	Yes	3 - high	Himawari-8	140.7°E																																					X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
AHI		3 - high	Himawari-9	140.7°E																																							X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
AMI	Yes	3 - high	GEO-KOMPSAT-2A	128.2°E																																									X	X	X	X	X	X	X	X	X	X	X	X
AVHRR/3	Yes	3 - high	Metop-A	09:30 desc																													X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
AVHRR/3	Yes	3 - high	Metop-B	09:30 desc																																			X	X	X	X	X	X	X	X	X	X	X	X	X
AVHRR/3		3 - high	Metop-C	09:30 desc																																									X	X	X	X	X	X	X	X
AVHRR/3	Yes	3 - high	NOAA-15	06:54 desc																					X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
AVHRR/3		3 - high	NOAA-16	09:01 desc																							X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
AVHRR/3		3 - high	NOAA-17	07:03 desc																									X	X	X	X	X	X	X	X	X
AVHRR/3	Yes	3 - high	NOAA-18	08:32 desc																												X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
AVHRR/3	Yes	3 - high	NOAA-19	04:46 desc																																X	X	X	X	X	X	X	X	X	X	X	X
FCI		3 - high	MTG-I1	0°																																												X	X	X	X	X	X	X	X	X
FCI		3 - high	MTG-I2	0°																																																X	X	X	X	X	X	X	X	X
FCI		3 - high	MTG-I3	0°																																																				X	X	X	X	X	X	X	X	X
FCI		3 - high	MTG-I4	0°																																																								X	X	X	X	X	X	X	X	X
GLI		3 - high	ADEOS-2	10:30 desc																									X	X
MERSI-2	Yes	3 - high	FY-3D	14:00 asc																																								X	X	X	X	X	X
MERSI-2		3 - high	FY-3E	06:00 desc																																											X	X	X	X	X	X
MERSI-2		3 - high	FY-3F	10:00 desc																																												X	X	X	X	X	X
MERSI-2		3 - high	FY-3G	14:00 asc																																													X	X	X	X	X	X
MERSI-2		3 - high	FY-3H	06:00 desc																																															X	X	X	X	X	X
MERSI-2		3 - high	FY-3RM-1	50 °																																											X	X	X	X	X	X
MERSI-2		3 - high	FY-3RM-2	50 °																																														X	X	X	X	X	X
METimage		3 - high	Metop-SG-A1	09:30 desc																																														X	X	X	X	X	X	X	X
METimage		3 - high	Metop-SG-A2	09:30 desc																																																					X	X	X	X	X	X	X	X
METimage		3 - high	Metop-SG-A3	09:30 desc																																																												X	X	X	X	X	X	X	X
MODIS	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
MODIS	Yes	3 - high	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
MSU-GSM		3 - high	Electro-M N1	14.5°W																																																X	X	X	X	X	X	X	X	X	X	X
MSU-GSM		3 - high	Electro-M N2	76°E																																																	X	X	X	X	X	X	X	X	X	X	X
MSU-GSM		3 - high	Electro-M N3	165.8°E																																																				X	X	X	X	X	X	X	X	X	X	X
MSU-MR		3 - high	Meteor-M N1	09:30 desc																																X	X	X	X	X	X
MSU-MR	Yes	3 - high	Meteor-M N2	09:30 asc																																					X	X	X	X	X	X	X
MSU-MR		3 - high	Meteor-M N2-1	15:09 asc																																								X
MSU-MR		3 - high	Meteor-M N2-2	15:00 asc																																										X	X	X	X	X	X
MSU-MR		3 - high	Meteor-M N2-3	15:09 asc																																											X	X	X	X	X	X
MSU-MR		3 - high	Meteor-M N2-4	09:00 desc																																												X	X	X	X	X	X
MSU-MR		3 - high	Meteor-M N2-5	15:00 desc																																														X	X	X	X	X	X
MSU-MR		3 - high	Meteor-M N2-6	09:00 asc																																															X	X	X	X	X	X
MSU-MR-MP		3 - high	Meteor-MP N1	15:30 asc																																																X	X	X	X	X	X	X	X
MSU-MR-MP		3 - high	Meteor-MP N2	09:30 desc																																																	X	X	X	X	X	X	X	X
MVISR		3 - high	FY-1A	15:30 asc											X
MVISR		3 - high	FY-1B	07:50 desc													X	X
MVISR		3 - high	FY-1C	07:00 desc																						X	X	X	X	X	X
MVISR		3 - high	FY-1D	09:00 desc																									X	X	X	X	X	X	X	X	X	X	X
SEVIRI		3 - high	Meteosat-8	3.7°E																									X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
SEVIRI	Yes	3 - high	Meteosat-9	3.5°E																												X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
SEVIRI	Yes	3 - high	Meteosat-10	9.5°E																																			X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
SEVIRI		3 - high	Meteosat-11	0°																																						X	X	X	X	X	X	X	X	X	X
SEVIRI		3 - high	Meteosat-8 (IODC)	41.5°E																																							X	X	X	X	X	X	X
VIIRS	Yes	3 - high	NOAA-20	13:25 asc																																								X	X	X	X	X	X	X	X
VIIRS		3 - high	JPSS-2	13:30 asc																																													X	X	X	X	X	X	X	X
VIIRS	Yes	3 - high	SNPP	13:25 asc																																		X	X	X	X	X	X	X	X	X	X
VIIRS		3 - high	JPSS-3	13:30 asc																																																	X	X	X	X	X	X	X	X
VIIRS		3 - high	JPSS-4	13:30 asc																																																						X	X	X	X	X	X	X	X
VIRR (FY-3)		3 - high	FY-3A	09:05 desc																															X	X	X	X	X	X	X	X
VIRR (FY-3)	Yes	3 - high	FY-3B	13:38 asc																																	X	X	X	X	X	X	X	X	X	X	X
VIRR (FY-3)	Yes	3 - high	FY-3C	10:15 desc																																				X	X	X	X	X	X	X	X
MSU-GS/A		3 - high	Arctica-M N1	63.4 °																																											X	X	X	X	X	X
MSU-GS/A		3 - high	Arctica-M N2	63.4 °																																														X	X	X	X	X	X
MSU-GS/A		3 - high	Arctica-M N3	63.4 °																																															X	X	X	X	X	X
MSU-GS/A		3 - high	Arctica-M N4	63.4 °																																																X	X	X	X	X	X
MSU-GS/A		3 - high	Arctica-M N5	63.4 °																																																X	X	X	X	X	X
IMAGER (INSAT)	Yes	3 - high	INSAT-3D	82°E																																				X	X	X	X	X	X	X	X	X
IMAGER (INSAT)		3 - high	INSAT-3DR	74°E																																							X	X	X	X	X	X	X	X	X
IMAGER (INSAT)		3 - high	INSAT-3DS	74°E																																												X	X	X	X	X	X	X	X
VIRS		3 - high	TRMM	35 °																				X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
AVHRR		3 - high	NOAA-6	07:30 desc		X	X	X	X	X	X	X	X	X
AVHRR		3 - high	NOAA-8	07:30 desc						X	X	X
AVHRR		3 - high	NOAA-10	07:30 desc									X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
AVHRR		3 - high	TIROS-N	14:30 asc	X	X	X	X
AVHRR/2		3 - high	NOAA-7	14:30 asc				X	X	X	X	X	X
AVHRR/2		3 - high	NOAA-9	14:30 asc							X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
AVHRR/2		3 - high	NOAA-11	14:10 asc											X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
AVHRR/2		3 - high	NOAA-12	05:10 desc														X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
AVHRR/2		3 - high	NOAA-13	14:00 asc																X
AVHRR/2		3 - high	NOAA-14	09:30 desc																	X	X	X	X	X	X	X	X	X	X	X	X	X	X
MSU-GS		3 - high	Electro-L N1	29.6°W																																		X	X	X	X	X	X
MSU-GS	Yes	3 - high	Electro-L N2	76°E																																						X	X	X	X	X	X	X	X	X	X	X
MSU-GS		3 - high	Electro-L N3	165.8°E																																										X	X	X	X	X	X	X	X	X	X	X
MSU-GS		3 - high	Electro-L N4	166°E																																												X	X	X	X	X	X	X	X	X	X	X
MSU-GS		3 - high	Electro-L N5	76°E																																													X	X	X	X	X	X	X	X	X	X	X
MTVZA-OK (optical)		3 - high	SICH-1M	82.5 °																											X	X	X
OCTS		3 - high	ADEOS	10:30 desc																			X	X
HRSAT-1		3 - high	HRSAT-1A	09:30 desc																																											X	X	X	X	X	X
HRSAT-1		3 - high	HRSAT-1B	09:30 desc																																											X	X	X	X	X	X
HRSAT-1		3 - high	HRSAT-1C	09:30 desc																																											X	X	X	X	X	X
MSU-SK1		3 - high	Resurs-O1-4	10:15 asc																					X	X	X	X	X
ATSR		3 - high	ERS-1	10:30 desc														X	X	X	X	X	X	X	X	X	X
3MI		4 - fair	Metop-SG-A1	09:30 desc																																														X	X	X	X	X	X	X	X
3MI		4 - fair	Metop-SG-A2	09:30 desc																																																					X	X	X	X	X	X	X	X
3MI		4 - fair	Metop-SG-A3	09:30 desc																																																												X	X	X	X	X	X	X	X
Polarimeters		4 - fair	PACE	12:00 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-A1	09:30 desc																																														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
TROPOMI		4 - fair	Sentinel-5P	13:30 asc																																								X	X	X	X	X	X	X	X
RS		4 - fair	ISS CLARREO-PF	51.6 °																																											X	X	X	X	X	X
MADPI		4 - fair	NEMO-AM	09:30 desc																																											X	X	X	X	X	X
MISR	Yes	4 - fair	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
POLDER		4 - fair	ADEOS	10:30 desc																			X	X
POLDER		4 - fair	ADEOS-2	10:30 desc																									X	X
POLDER		4 - fair	PARASOL	15:20 asc																											X	X	X	X	X	X	X	X	X	X
GOME		4 - fair	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	4 - fair	Metop-A	09:30 desc																													X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
GOME-2	Yes	4 - fair	Metop-B	09:30 desc																																			X	X	X	X	X	X	X	X	X	X	X	X	X
GOME-2		4 - fair	Metop-C	09:30 desc																																									X	X	X	X	X	X	X	X
Sentinel-4		4 - fair	MTG-S1	0°																																														X	X	X	X	X	X	X	X	X
Sentinel-4		4 - fair	MTG-S2	0°																																																						X	X	X	X	X	X	X	X	X
TANSO-FTS	No	4 - fair	GOSAT-1	13:00 desc																																X	X	X	X	X	X	X	X	X	X	X	X
TANSO-FTS/2		4 - fair	GOSAT-2	13:00 desc																																									X	X	X	X	X	X
CATS		5 - marginal	ISS CATS	51.6 °																																						X	X	X
CALIOP	No	5 - marginal	CALIPSO	13:30 asc																													X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
ATLID		5 - marginal	EarthCARE	14:00 desc																																												X	X	X	X
GEDI Lidar		5 - marginal	ISS GEDI	51.6 °																																									X	X	X	X	X	X
MOLI lidar		5 - marginal	ISS MOLI	51.6 °																																													X	X	X	X	X	X
GLAS		5 - marginal	ICESat	94 °																										X	X	X	X	X	X	X	X
ATLAS		5 - marginal	ICESat-2	94 °																																									X	X	X	X	X	X

All instruments for measuring Cloud drop effective radius

Instruments	Relevance	Operational limitations
DPR	1 - primary	No specific limitation..
Rainradar	1 - primary	No specific limitation..
PR	1 - primary	No specific limitation..
CPR (CloudSat)	1 - primary	Low-density cloud only.. Along-track only..
CPR (Earth-CARE)	1 - primary	Low-density cloud only.. Along-track only..
MWI (MetOp-SG)	2 - very high	No specific limitation..
MTVZA	2 - very high	No specific limitation..
MTVZA-GY	2 - very high	No specific limitation..
MTVZA-GY-MP	2 - very high	No specific limitation..
MTVZA-OK (MW)	2 - very high	No specific limitation..
SSMIS	2 - very high	No specific limitation..
ATMS	2 - very high	No specific limitation..
MWS	2 - very high	No specific limitation..
MWHS-2	2 - very high	No specific limitation..
AMSU-A	2 - very high	No specific limitation..
AMSU-B	2 - very high	No specific limitation..
MHS	2 - very high	No specific limitation..
SSM/T-2	2 - very high	No specific limitation..
GeoSTAR	2 - very high	No specific limitation..
AATSR	3 - high	At cloud top.. Daylight only..
ATSR-2	3 - high	At cloud top.. Daylight only..
SLSTR	3 - high	At cloud top.. Daylight only..
ISR	3 - high	At cloud top.. Daylight only.. Limited coverage (only above 40° North).
ABI	3 - high	At cloud top.. Daylight only..
AGRI	3 - high	At cloud top.. Daylight only..
AHI	3 - high	At cloud top.. Daylight only..
AMI	3 - high	At cloud top.. Daylight only..
AVHRR/3	3 - high	At cloud top.. Daylight only..
FCI	3 - high	At cloud top.. Daylight only..
GLI	3 - high	At cloud top.. Daylight only..
MERSI-2	3 - high	At cloud top.. Daylight only..
METimage	3 - high	At cloud top.. Daylight only..
MODIS	3 - high	At cloud top.. Daylight only..
MSU-GSM	3 - high	At cloud top.. Daylight only..
MSU-MR	3 - high	At cloud top.. Daylight only..
MSU-MR-MP	3 - high	At cloud top.. Daylight only..
MVISR	3 - high	At cloud top.. Daylight only..
SEVIRI	3 - high	At cloud top.. Daylight only..
VIIRS	3 - high	At cloud top.. Daylight only..
VIRR (FY-3)	3 - high	At cloud top.. Daylight only..
MSU-GS/A	3 - high	At cloud top.. Daylight only.. Limited coverage (only above 40° North).
IMAGER (INSAT)	3 - high	At cloud top.. Daylight only..
VIRS	3 - high	At cloud top.. Daylight only..
AVHRR	3 - high	At cloud top.. Daylight only..
AVHRR/2	3 - high	At cloud top.. Daylight only..
MSU-GS	3 - high	At cloud top.. Daylight only..
MTVZA-OK (optical)	3 - high	At cloud top.. Daylight only..
OCTS	3 - high	At cloud top.. Daylight only..
HRSAT-1	3 - high	At cloud top.. Daylight only.. Infrequent coverage..
MSU-SK1	3 - high	At cloud top.. Daylight only.. Infrequent coverage..
ATSR	3 - high	At cloud top.. Daylight only..
3MI	4 - fair	At cloud top.. Daylight only..
MAIA	4 - fair	At cloud top.. Daylight only..
Polarimeters	4 - fair	At cloud top.. Daylight only..
APS	4 - fair	At cloud top.. Daylight only.. Along-track only..
ACS-nadir	4 - fair	At cloud top.. Daylight only..
SCIAMACHY-nadir	4 - fair	At cloud top.. Daylight only..
Sentinel-5	4 - fair	At cloud top.. Daylight only..
TROPOMI	4 - fair	At cloud top.. Daylight only..
RS	4 - fair	At cloud top.. Daylight only.. Along-track only..
SW spectrometer	4 - fair	At cloud top.. Daylight only.. Along-track only..
MADPI	4 - fair	At cloud top.. Daylight only..
MISR	4 - fair	At cloud top.. Daylight only..
POLDER	4 - fair	At cloud top.. Daylight only..
GOME	4 - fair	At cloud top.. Daylight only..
GOME-2	4 - fair	At cloud top.. Daylight only..
Sentinel-4	4 - fair	At cloud top.. Daylight only..
TANSO-FTS	4 - fair	At cloud top.. Daylight only..
TANSO-FTS/2	4 - fair	At cloud top.. Daylight only..
CATS	5 - marginal	Low-density cloud only.. Infrequent coverage..
ACE Lidar	5 - marginal	Low-density cloud only.. Along-track only..
CALIOP	5 - marginal	Low-density cloud only.. Along-track only..
ATLID	5 - marginal	Low-density cloud only.. Along-track only..
GEDI Lidar	5 - marginal	Low-density cloud only.. Infrequent coverage..
MOLI lidar	5 - marginal	Low-density cloud only.. Infrequent coverage..
VCL	5 - marginal	Low-density cloud only.. Infrequent coverage..
GLAS	5 - marginal	Low-density cloud only.. Along-track only..
ATLAS	5 - marginal	Low-density cloud only.. Along-track only..