Preliminary Striping Estimates for Infrared Data from the GOES-13 Imager Don Hillger

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Preliminary Striping Estimates
for Infrared Data
from the GOES-13 Imager
Don Hillger
NOAA/NESDIS/StAR/RAMMB
(Don.Hillger@noaa.gov)
July 2006
Table 2: Estimates of GOES-13 Imager detector-to-detector
striping (from both-detector mean*) and noise compared to GOES12. Calculated on ~300,000 earth-view pixels.
GOES-12
(Preliminary
/ 5th-year)
Imager
Band
Central
Wavelength
(μm)
GOES-13
2
3.9
0.34
0.35 / 0.22
0.45
1.1 / 1.1
3
6.5
0.60
0.30 / 0.077
0.80
0.85 / 0.91
4
10.7
0.40
1.0 / 0.29
0.47
1.0 / 1.6
6
13.3
One detector
only
One detector
only
One detector
only
One detector
only
Striping* (GVAR count,
10-bit, 0-1023)
GOES-13
GOES-12
(Preliminary
/ 5th-year)
Noise** (GVAR count,
10-bit, 0-1023)
*Defined as the difference between the average value for each detector from the average value in both
detectors. Therefore striping between the two detectors is actually twice the value listed, and is often
more noticeable than noise.
**Striping is compared to noise, to recognize that increased striping may contribute to increased noise.
(For example, the increased noise in GOES-13 band-3 compared to the other GOES-13 bands, may be
the reason the noise in GOES-13 band-3 is higher than the other GOES-13 bands. For GOES-12, noise
appears to be equal to or much greater than striping in all bands.)
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