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.)