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MetOP Cal/Val Update Nov. 30, 2007

MetOP Cal/Val Update Nov. 30, 2007. Changyong Cao Likun Wang Bob Iacovazzi Yaping Li. MetOP HIRS Longwave channels. channel. MetOP HIRS Shortwave channels. channel. MetOP HIRS Qualitative assessments. Compare to NOAA18 HIRS. MetOP/HIRS Instrument Trending.

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MetOP Cal/Val Update Nov. 30, 2007

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  1. MetOP Cal/Val UpdateNov. 30, 2007 Changyong Cao Likun Wang Bob Iacovazzi Yaping Li

  2. MetOP HIRS Longwave channels channel

  3. MetOP HIRS Shortwave channels channel

  4. MetOP HIRS Qualitative assessments

  5. Compare to NOAA18 HIRS

  6. MetOP/HIRS Instrument Trending

  7. MetOP/HIRS Instrument Trending

  8. MetOP/HIRS Instrument Trending

  9. MetOP-A Cal/Val • SNOs between MetOP-A and NOAA-18 are now routinely predicted for intercalibration • First opportunity is 21:32:35 UTC on Nov. 1, 2006 • Availalble at: http://www.orbit.nesdis.noaa.gov/smcd/spb/calibration/icvs/ • Under infrared imagers>>MetOP-A/AVHRR>>SNO predictions

  10. Hyperion Hyperspectral data acquisition at MetOP SNOs • Hyperion: Payload on EO-1 with 220 channels covering 0.4 to 2.5 um spectral region, with 30m resolution, scene 7.5km x100km. • SNO data between Hyperion and AVHRR/MetOP will be acquired in collaboration with USGS EROS data center • Hyperion data already acquired for the following sites: • Dunhuang, Qinghai lake, Taihu lake, Greenland, Antarctic/Arctic, Sonora desert (for GOES-R cal/val) Hyperion at Dunhuang cal site

  11. MetOP/AVHRR moon observations AVHRR moon event predictions: • Previous study on AVHRR space clamp in Ignatov, et al 2005. • Recent radiometric analysis with Tom Stone produced mixed results. • Additional instrument info needed regarding oversampling in spaceview. • Will use MetOP/ AVHRR moon observations to refine analysis. • Potentially useful for both calibration and alignment analysis. MetOP-A moon event Sample AVHRR moon view

  12. CRTM Global Forward CalculationsN18/AMSU channels

  13. Summary • MetOP/HIRS is performing well. No major issues. • Small coherent noise in the longwave channels requires further investigation • Further analysis will be performed according to the HIRS OV plan • Hyperion SNO and Moon calibration experiments are planned for AVHRR • CRTM global forward calculations will be performed for MetOP/AMSU

  14. Backup slides

  15. MetOP/HIRS/H306 Performance NSS.HIRX.M2.D06325.S1519.E1701.B0046869.SV CH NEDN NEDN Spec X spec. 1 1.145716 3.000000 0.38 2 0.261769 0.670000 0.39 3 0.158844 0.500000 0.32 4 0.131501 0.310000 0.42 5 0.094717 0.210000 0.45 6 0.091298 0.240000 0.38 7 0.084706 0.200000 0.42 8 0.032110 0.100000 0.32 9 0.054172 0.150000 0.36 10 0.078733 0.150000 0.52 11 0.061591 0.200000 0.31 12 0.044548 0.200000 0.22 13 0.001743 0.006000 0.29 14 0.001346 0.003000 0.45 15 0.001204 0.004000 0.30 16 0.001086 0.004000 0.27 17 0.000913 0.002000 0.46 18 0.000850 0.002000 0.42 19 0.000351 0.001000 0.35

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