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GOES-13 Sounder Noise Don Hillger NOAA/NESDIS/StAR/RAMMB CIRA/Colorado State University

GOES-13 Sounder Noise Don Hillger NOAA/NESDIS/StAR/RAMMB CIRA/Colorado State University

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Page 1: GOES-13 Sounder Noise Don Hillger NOAA/NESDIS/StAR/RAMMB CIRA/Colorado State University

GOES-13 Sounder Noise

Don Hillger

NOAA/NESDIS/StAR/RAMMB

CIRA/Colorado State University

Page 2: GOES-13 Sounder Noise Don Hillger NOAA/NESDIS/StAR/RAMMB CIRA/Colorado State University

Hourly GOES-13 Sounder noise from 24-h of limb (earth and space) views, East limb of earth, Julian Day 343-344

Note the peak in noise at and around 0746 UTC

Page 3: GOES-13 Sounder Noise Don Hillger NOAA/NESDIS/StAR/RAMMB CIRA/Colorado State University

Hourly GOES-13 Sounder noise from 24-h of limb (earth and space) views, East limb of earth, Julian Day 344-345

Note the peak in noise at and around 0746 UTC

Page 4: GOES-13 Sounder Noise Don Hillger NOAA/NESDIS/StAR/RAMMB CIRA/Colorado State University

Hourly GOES-13 Sounder noise from 24-h of limb (earth and space) views, West limb of earth, Julian Day 343-344

Note the peak in noise at and around 0816 UTC

Page 5: GOES-13 Sounder Noise Don Hillger NOAA/NESDIS/StAR/RAMMB CIRA/Colorado State University

Hourly GOES-13 Sounder noise from 24-h of limb (earth and space) views, West limb of earth, Julian Day 344-345

Note the peak in noise at and around 0816 UTC

Page 6: GOES-13 Sounder Noise Don Hillger NOAA/NESDIS/StAR/RAMMB CIRA/Colorado State University

Sounder Band

Central Wavelength

(μm)

East Limb

West Limb

Limb Average

Limb Average

CIMSSAnalysis

13-bit GVAR counts (0-8191) (mW/(m2·sr·cm-1))

1 14.71 20.8 20.9 20.9 0.32 0.32

2 14.37 17.3 17.0 17.2 0.25 0.26

3 14.06 14.3 13.9 14.1 0.23 0.24

4 13.64 9.17 8.92 9.05 0.18 0.19

5 13.37 8.18 8.05 8.12 0.18 0.19

6 12.66 3.95 4.01 3.98 0.095 0.11

7 12.02 3.14 3.56 3.35 0.086 0.10

8 11.03 4.12 3.99 4.06 0.10 0.12

9 9.71 5.95 5.86 5.91 0.11 0.12

10 7.43 11.5 11.3 11.4 0.081 0.09

11 7.02 11.2 10.8 11.0 0.046 0.05

12 6.51 22.7 22.5 22.6 0.063 0.07

13 4.57 7.51 7.28 7.40 0.0061 0.007

14 4.52 11.2 11.1 11.2 0.0064 0.007

15 4.46 18.3 17.6 18.0 0.0055 0.006

16 4.13 4.01 3.91 3.96 0.0030 0.003

17 3.98 3.88 3.90 3.89 0.0026 0.003

18 3.74 2.67 2.46 2.57 0.0011 0.001

GOES-13 Sounder noise(From 48 hours of limb (earth

and space) views on Julian days 343-345)

Note that the noise

estimates are very similar to

those calculated

independently by CIMSS.

Page 7: GOES-13 Sounder Noise Don Hillger NOAA/NESDIS/StAR/RAMMB CIRA/Colorado State University

Sounder Band

CentralWavelength

(μm)

GOES-13 GOES-12 GOES-11 GOES-10 GOES-9 GOES-8 SPEC

(mW/(m2·sr·cm-1))

1 14.70 0.32 0.77 0.67 0.71 1.16 1.76 0.66

2 14.40 0.25 0.61 0.51 0.51 0.80 1.21 0.58

3 14.10 0.23 0.45 0.37 0.41 0.56 0.98 0.54

4 13.90 0.18 0.39 0.36 0.41 0.46 0.74 0.45

5 13.40 0.18 0.34 0.34 0.36 0.45 0.68 0.44

6 12.70 0.095 0.14 0.17 0.16 0.19 0.32 0.25

7 12.00 0.086 0.11 0.11 0.09 0.13 0.20 0.16

8 11.00 0.10 0.11 0.14 0.12 0.09 0.13 0.16

9 9.70 0.11 0.14 0.13 0.10 0.11 0.16 0.33

10 7.40 0.081 0.099 0.09 0.07 0.08 0.08 0.16

11 7.00 0.046 0.059 0.06 0.04 0.05 0.07 0.12

12 6.50 0.063 0.11 0.11 0.07 0.09 0.11 0.15

13 4.57 0.0061 0.0062 0.006 0.007 0.008 0.012 0.013

14 4.52 0.0064 0.0062 0.007 0.005 0.007 0.010 0.013

15 4.45 0.0055 0.0066 0.006 0.005 0.006 0.009 0.013

16 4.13 0.0030 0.0024 0.003 0.003 0.003 0.004 0.008

17 3.98 0.0026 0.0022 0.003 0.002 0.003 0.004 0.008

18 3.70 0.0011 0.00094 0.001 0.001 0.001 0.002 0.004

Summary of the noise for GOES-8 through GOES-13 Sounder Bands(The Specification (SPEC) values are also listed)