Sensors
NPOESS MIS*

CMIS Environmental Data Records (EDR) and Proxy Data Sensors

Priority	CMIS EDR	Key EDR	TYPE	Proxy Data Sensor
1A	Atmospheric Vertical Moisture Profile	Key	Atmosphere	AMSU, SSMIS
1A	Soil Moisture	Key	Land	WindSat
1A	Global Sea Surface Winds (Speed)	Key	Ocean	WindSat
2A	Global Sea Surface Winds (Direction)	Key	Ocean	WindSat
2A	Sea Surface Temperature	Key	Ocean	WindSat
2A	Precipitable Water Vapor		Atmosphere	SSMIS
2A	Atmospheric Vertical Temperature Profile	Key	Atmosphere	AMSU, SSMIS
2A	Cloud Liquid Water		Cloud	SSMIS
2A	Cloud Ice Water Path		Cloud	AMSU, SSMIS
2A	Total Water Content		Atmosphere	SSMIS
2A	Precipitation (Type, Rate)		Atmosphere	SSMIS
2B	Land Surface Temperature		Land	SSMIS
2B	Ice Surface Temperature		Ocean	SSMIS
2B	Sea Ice Characterization		Ocean	SSMIS
3B	Snow Cover/Depth		Land	SSMIS
3B	Global Sea Surface Wind Stress		Ocean	WindSat
3B	Pressure (Surface/Profile)		Atmosphere	SSMIS
3B	Cloud Base Height		Cloud	SSMIS
3B	Surface Type		Land	SSMIS
3B	Imagery	Key	Imagery	WindSat, SSMIS

EDR Requirements Summary

	HCS(km)		Performance (U) uncertainty or (A) accuracy		Measurement Range
Atmospheric Vertical Moisture Profile	15		Clear (U) Surface to 600 mb 600 mb to 300 mb 300 mb to 100 mb Cloudy (U) Surface to 600 mb 600 mb to 300 mb 300 mb to 100 mb	18 % or 0.2 g/kg 22 % or 0.1 g/kg 22 % or 0.04 g/kg 20 % or 0.2 g/kg 40 % or 0.1 g/kg 40 % or 0.04 g/kg	0 - 30 g/kg
Soil Moisture	40		8.5% (U)		0 - 100%
Sea Surface Winds Speed	20		1 m/s (A)		0 - 25 m/s
Sea Surface Winds Direction	56 X 35		6 deg (A)		0 - 360 deg
Sea Surface Winds Temperature	50		0.2 K(A)		271K - 313K
Precipitable Water	25		Ice free ocean -1 mm (A) Land/ice - Greater of 5% or 2 mm (A)		0 - 75 mm
Atmospheric Vertical Temperature Profile	Surface to 20 mb 20 to 0.01 mb	40 200	Clear(U) Surface to 700 mb 700 mb to 300 mb 300 mb to 30 mb 30 mb to 6 mb 6 mb to 1 mb 1 mb to 0.3 mb 0.3 mb to 0.01 mb Cloudy (U) Surface to 700 mb 700 mb to 300 mb 300 mb to 30 mb 30 mb to 6 mb 6 mb to 1 mb 1 mb to 0.3 mb 0.3 mb to 0.01 mb	1.6 K/1 km layers 1.4 K/1 km layers 1.3 K/3 km layers 1.5 K/5 km layers 2.4 K/5 km layers 3.5 K/5 km layers 6.5 K/5 km layers 2 K/1 km layers 1.4 K/1 km layers 1.3 K/3 km layers 1.5 K/5 km layers 2.4 K/5 km layers 3.5 K/5 km layers 6.5 K/5 km layers	162 K - 335 K
Cloud Liquid Water	20		No precipitation (U) Ice free ocean - 0.08 kg/m2 Land/ice - 0.21 kg/m2 Precipitation (U) Ice free ocean - 0.23 kg/m2 Land/ice - 0.45 kg/m2		0 - 5 kg/m2
Cloud Ice Water Path	50		25% (A)		0.3 - 2.6 kg/m2
Total Water Content	20		Point Measurement: (U) Non-precipitating - 1.2 kg/m2 Precipitating - Greater of 2.2 kg/m2 of 15% Global Average (U):0.25 kg/m2		0 - 60 kg/m2
Precipitation (Type, Rate)	15		Ice free ocean - Greater of 1 mm/hr or 10% (A) Land/ice - Greater of 1 mm/hr or 50% (A)		Rate: 0 - 50 mm/hr Type: Rain and Ice
Land Surface Temperature	50		0.5 K (A)		213 K \u2013 343 K
Ice Surface Temperature	25		3 K (U)		213 K \u2013 275 K
Sea Ice Age and Ice Concentration	20		Probability of Correct Typing (Ice Age) - 80%		Age: Ice Age Classes first year, multi-year 1/10 to 10/10
Snow Cover/Depth	20		20 % (snow/no snow) (U)		Snow Depth Ranges: > 0 cm (Any Snow Thickness) Measurement range 0-100%
Surface Wind Stress	20		0.015 N/m2 for wind speed £ 5 m/s (U) a+bW+gW2 for 5 m/s < wind speed (W) < 25 m/s (U) a = -6.58X10-4 b = 2.28X10-3 g = 1.83X10-4		0 - 2.2 N/m2
Pressure Profile	25		0 - 10 km: 3% (A) 10 - 30 km: 5% (A)		10 - 1050 mb
Cloud Base Height	25		2 km (U)		0 - 15 km
Fresh Water Ice	20		Ice Edge boundary: 6 km (U) Ice Concentration: 0.08 (U)		0/10 to 10/10 concentration
Vegetation /Surface Type	20		Correct Typing Probability: 75 %		8 CMIS aggregated types
Imagery	Consistent with related EDRs (15, 20, 25, 40, 50, 56X25, 84X53)		Derived		Dynamic range of all measurement channels

CMIS Channel Beam Parameters

Channel	HPBW [deg] (1) across x along scan	IFOV [Km] (2) across x along	EFOV [Km] (2) across x along	EIA [degrees] (1)
6V, 6H	1.632 x 1.659	67.7 x 37.8	67.7 x 39.3	55.75
10V, 10H	0.986 x 0.972	45.5 x 24.2	45.5 x 24.8	58.13
10R, 10L	0.98 x 0.97	45.5 x 24.2	45.5 x 24.8	58.13
18V, 18H	0.595 x 0.646	23.4 x 15.3	23.5 x 15.5	53.64
18P, 18M	0.598 x 0.614	23.4 x 15.3	23.5 x 15.5	53.64
18R, 18L	0.637 x 0.66	23.4 x 15.3	23.5 x 15.5	53.64
23V, 23H	0.569 x 0.619	23.4 x 15.3	23.5 x 15.5	55.64
36V, 36H	0.411 x 0.419	16.6 x 9.9	16.7 x 10.3	55.75
36P, 36M	0.411 x 0.419	16.6 x 9.9	16.7 x 10.3	55.75
60V complex	0.36 x 0.315	15.0 x 7.7	14.9 x 8.2	55.75
60L	0.371 x 0.319	15.0 x 7.7	14.9 x 8.2	55.75
89V, 89H	0.377 x 0.314	15.6 x 7.8	15.3 x 8.1	55.75
166V	0.359 x 0.349	14.6 x 8.4	14.6 x 8.8	55.49
183V complex	0.355 x 0.371	16.1 x 8.7	16.1 x 9.0	55.49

CMIS Baseline Channel Specifications

CHANNEL NAME	CENTER FREQUENCY [GHz]	POLARIZATION	NEDT [K]	BANDWIDTH [MHz]
6V	6.625	V	0.4	350
6H	6.625	H	0.4	350
10V	10.65	V	0.94	100
10H	10.65	H	0.94	100
10R	10.65	RC	0.98	100
10L	10.65	LC	0.98	100
18V	18.7	V	1.18	200
18H	18.7	H	1.18	200
18P	18.7	+45	1.18	200
18M	18.7	-45	1.18	200
18R	18.7	RC	1.32	200
18L	18.7	LC	1.32	200
23V	23.8	V	1.0	400
23H	23.8	H	1.0	400
36V	36.5	V	0.63	1000
36H	36.5	H	0.63	1000
36P	36.5	+45	0.63	1000
36M	36.5	-45	0.63	1000
60VA	50.30	V	2.70	134
60VB	52.24	V	0.92	1280
60VC	53.57	V	1.05	960
60VD	54.38	V	1.51	440
60VE	54.905	V	1.69	350
60VF	55.49	V	1.71	340
60VG	56.66	V	1.82	300
60VJ	59.38	V	1.88	280
60VK	59.94	V	1.51	440
60LL	60.3712	LC	3.35	57.6
60LM	60.408	LC	6.34	16.0
60LU	60.4202	LC	8.74	8.4
60LV	60.5088	LC	3.80	44.8
60L FFT 1-40	60.43476	LC		25.0
60L FFT 1, 40			20.67	1.50
60L FFT 2, 39			22.65	1.25
60L FFT 3, 4, 37, 38			25.32	1.00
60L FFT 5, 36			29.23	0.75
60L FFT 6-8, 33-35			35.80	0.50
60L FFT 9-32			50.63	0.25
89V	89.0	V	0.76	4000
89H	89.0	H	0.76	4000
166V	166.0 ±0.7875	V	2.37	1425 each
183VA	183.31±0.7125	V	2.62	1275 each
183VB	183.31±3.1	V	1.61	3500 each
183VC	183.31±7.7	V	1.43	4500 each

Available Heritage Sensors for CMIS

Sensor	CMIS	SSMIS	AMSU	WindSat
Spacecraft	NPOESS	DMSP	NOAA-16	Coriolis
Agency	NPOESS	NRL/USAF	NOAA	NRL
Launch Date	- -	Oct. 2003	Sept. 2001	Jan 2003
Altitude (km)	833	833	850	830
EIA (deg)	53.6-58.1	53.1	-57 to 57	49.9-55.3
Swath (km)	1700	1700	2200	1025 / 350 (Fore / Aft)

Proxy Data for CMIS Channel Frequencies and Other Polar Orbiting Microwave Radiometers

CMIS (53-58° EIA)	SSMIS (53° EIA)	AMSU (x-scan)	WindSat (50-55° EIA)	Purpose
6.625/350/H,V			6.8/125/H,V	Window
10.65/100/H,V,R,L			10.7/300/H,V,+45,-45,R,L	Window
18.7/200/H,V,+45,-45,R,L			18.7/750/H,V,+45,-45,R,L	Window
	19.35/355,357/H,V	23.8/251		Window
	22.235/401/V	31.4/161		Window
23.8/400/H,V			23.8/500/H,V	Sounding (H2O)
36.5/1000/H,V,+45,-45	37.0/1545-1615/H,V		37.0/2000/H,V,+45,-45,R,L	Window
50.300/134/V	50.3/380/H	50.300/161		Sounding (O2)
52.240/1280/V				Sounding (O2)
	52.8/389/H	52.800/380		Sounding (O2)
53.570/960/V	53.596/380/H	53.600/168		Sounding (O2)
54.380/440/V	54.4/383/H	54.400/380		Sounding (O2)
54.905/350/V		54.940/380		Sounding (O2)
55.490/340/V	55.5/391/H	55.500/310		Sounding (O2)
56.660/300/V				Sounding (O2)
	57.29/330/R	fo = 57.290/310		Sounding (O2)
59.380/280/V	59.4/239/R	fo ± 0.217/76		Sounding (O2)
59.940/440/V		fo ± 0.322 ± 0.048/34		Sounding (O2)
60.371200/57.6/L		fo ± 0.322 ± 0.022/15		Sounding (O2)
60.4080/16.0/L		fo ± 0.322 ± 0.010/8		Sounding (O2)
60.4202/8.4/L		fo ± 0.322 ± 0.004/3		Sounding (O2)
60.5088/44.8/L				Sounding (O2)
60.434776/25.0, FFT 40 channels/L				Sounding (O2)
	60.792668±0.357892± /1.3-26.5/R (5 channels)			Sounding (O2)
	63.283248±0.285271/1.35/R			Sounding (O2)
89.0/4000/H,V		89.0/3000		Window
	91.655 /1411-1418/H,V			Window
	150.0 /1642/H	150 /4000		Sounding (H2O)
166.0±0.7875/1425/V				Sounding (H2O)
183.31±0.7125/1275/V	183.31±1.0/513/H	183.31±1.0/1000		Sounding (H2O)
183.31±3.1/3500/V	183.31±3.0/1019/H	183.31±3.0/2000		Sounding (H2O)
183.31±7.7/4500/V	183.31±6.6/1526/H	183.31±7.0/4000		Sounding (H2O)

Key
XXX/YYY/V,H,+45,-45, L,R	Center Freq. (GHz)/ Bandwidth (MHz)/ Polarization	Window channel match
V, H, +45, -45, L, R	Vertical, Horizontal, +45°, -45°, Left Circular, Right Circular Polarization	Sounding channel match
EIA	Earth Incidence Angle

*The configuration provided here is based on the former CMIS instrument which was planned to fly on NPOESS but was canceled from the NPOESS project. Its successor, the MIS sensor is at this point in time, not clearly defined in terms of sensor characteristics.