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CERES Calibration
CERES Calibration
Calibration Home → CERES Calibration Coefficients
Satellite | Longitude | Launch Date | CNT. Resp | DSL Range | E0 | g0 | g1 | g2 | C0 | U (%) | DCC/Desert | DCC+Desert+LaRC | Space CNT. | Data Src. | Data Bit |
GOES-5 |
75W |
May 22, 1981 |
Squared |
86-1151 |
531.7 |
8.69e-03 |
3.13e-07 |
0.00000 |
999 |
3.38 |
Image |
Image |
Image |
NOA |
8-bit |
GOES-6A |
108W |
Apr 28, 1983 |
Squared |
48-1693 |
531.11 |
8.81e-03 |
1.56e-06 |
0.00000 |
25.0 |
4.76 |
Image |
Image |
Image |
NOA |
8-bit |
GOES-7 |
98W/135W |
Feb 26, 1987 |
Squared |
718-1757 |
520.8 |
9.59e-03 |
1.86e-06 |
0.00000 |
999 |
1.79 |
Image |
Image |
Image |
NOA |
8-bit |
GOES-8 |
75W |
Apr 13, 1994 |
Linear |
186-3259 |
518.28 |
2.58e+00 |
6.46e-04 |
-4.49e-08 |
7.0 |
0.57 |
Image |
Image |
Image |
NOA |
8-bit |
GOES-9A |
90W |
May 23, 1995 |
Linear |
238-1149 |
515.68 |
2.27e+00 |
4.39e-04 |
0.00000 |
7.0 |
0.68 |
Image |
Image |
Image |
NOA |
8-bit |
GOES-9B |
135W |
May 23, 1995 |
Linear |
2915-3828 |
515.68 |
2.09e+00 |
3.33e-04 |
0.00000 |
7.0 |
0.38 |
Image |
Image |
Image |
NOA |
8-bit |
GOES-10 |
135W |
Apr 25, 1997 |
Linear |
478-3338 |
504.29 |
2.01e+00 |
7.46e-04 |
-8.85e-08 |
7.0 |
0.68 |
Image |
Image |
Image |
NOA |
8-bit |
MET-2A |
0 |
Jun 19, 1981 |
Linear |
576-1126 |
414.85 |
1.87e+00 |
5.43e-05 |
0.00000 |
4.0 |
0.80 |
Image |
Image |
Image |
EUM |
8-bit |
MET-2B |
0 |
Jun 19, 1981 |
Linear |
2157-1615 |
414.85 |
1.71e+00 |
-1.75e-05 |
0.00000 |
4.0 |
1.70 |
Image |
Image |
Image |
EUM |
8-bit |
MET-3A |
0 |
Jun 15, 1988 |
Linear |
62-364 |
427.85 |
1.55e+00 |
1.76e-04 |
0.00000 |
4.0 |
1.26 |
Image |
Image |
Image |
EUM |
8-bit |
MET-3B |
50W |
Jun 15, 1988 |
Linear |
579-944 |
427.85 |
1.89e+00 |
1.06e-04 |
0.00000 |
4.0 |
0.73 |
Image |
Image |
Image |
EUM |
8-bit |
MET-4 |
0 |
Mar 06, 1989 |
Linear |
101-1806 |
442.03 |
1.81e+00 |
1.42e-04 |
0.00000 |
4.0 |
1.25 |
Image |
Image |
Image |
EUM |
8-bit |
MET-5A |
0 |
Mar 02, 1991 |
Linear |
1079-1175 |
467.94 |
1.86e+00 |
4.62e-05 |
0.00000 |
4.0 |
0.61 |
Image |
Image |
Image |
EUM |
8-bit |
MET-5B |
63E |
Mar 02, 1991 |
Linear |
3332-5767 |
467.94 |
1.85e+00 |
6.32e-05 |
0.00000 |
4.0 |
0.65 |
Image |
Image |
Image |
EUM |
8-bit |
MET-6 |
0 |
Nov 20, 1993 |
Linear |
1182-1638 |
468.93 |
1.92e+00 |
7.13e-05 |
0.00000 |
4.0 |
0.47 |
Image |
Image |
Image |
EUM |
8-bit |
MET-7 |
0/57E |
Sep 02, 1997 |
Linear |
560-5431 |
446.07 |
1.90e+00 |
1.70e-04 |
-1.24e-08 |
4.5 |
0.70 |
Image |
Image |
Image |
EUM |
8-bit |
GMS-1 |
140E |
Jul 14, 1977 |
Linear |
2377-1528 |
534.77 |
1.61e-02 |
-1.12e-06 |
0.00000 |
2.5 |
1.01 |
Image |
Image |
Image |
JMA |
8-bit |
GMS-2A |
140E |
Aug 11, 1981 |
Squared |
704-888 |
530.84 |
1.05e-02 |
1.55e-06 |
0.00000 |
2.7 |
0.63 |
Image |
Image |
Image |
JMA |
8-bit |
GMS-2B |
140E |
Aug 11, 1981 |
Squared |
1070-1131 |
530.84 |
NaN |
NaN |
0.00000 |
2.7 |
NaN |
Image |
Image |
Image |
JMA |
8-bit |
GMS-3 |
140E |
Aug 03, 1984 |
Squared |
43-1960 |
516.1 |
9.38e-03 |
1.25e-06 |
0.00000 |
8.0 |
1.64 |
Image |
Image |
Image |
JMA |
8-bit |
GMS-4 |
140E |
Sep 05, 1989 |
Squared |
133-1109 |
532.39 |
NaN |
NaN |
0.00000 |
5.0 |
NaN |
Image |
Image |
Image |
JMA |
8-bit |
GMS-5 |
140E |
Mar 18, 1995 |
Squared |
89-1981 |
418.97 |
6.75e-03 |
1.99e-07 |
0.00000 |
0.0 |
0.59 |
Image |
Image |
Image |
JMA |
8-bit |
The Radiance (L) in units of Wm
-2sr
-1µm
-1 is computed from the calibration gain (g) and the measured single-gain 8-bit count (C) from the ISCCP B1U 8-bit GEO-sensor datasets, the 8-bit count space count or offset (C
0) and the day since launch (dsl), as shown below depending on the response of the GEO-sensor.
Radiance (L) is computed for Linear Count Response GEO-sensors as:
L = g • (C - C0), where g = g0 + g1• dsl + g2• dsl2 Radiance (L) is computed for Squared Count Response GEO-sensors as:
L = g • (C2 - (C0)2), where g = g0 + g1• dsl + g2• dsl2 The Radiance (L) is converted to the Nominal or Scaled Reflectance (ρ
scaled) as:
ρscaled=L/E0
The Uncertainty (U %) of the GEO-calibration as given in above table is the 'Temporal Variablity' about the 'Timeline Fit' in each case (see image under the DCC+Desert+LaRC column). The DCC and DESERT models are also referenced to the Aqua-MODIS Collection 6 Band 1 data. This Uncertainty does not include either the Aqua-MODIS Collection 6 Band 1 Absolute Uncertainty (1.6%) or the DCC and DESERT Calibration Transfer Uncertainty.
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