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METOP-A AVHRR OV Plan

This document provides an initial assessment of the post-launch calibration and telemetry analysis for the METOP-A AVHRR instrument. It focuses on the evaluation of the TIR channel striping, noise measurements, and the co-registration of the geometric navigation. The study includes an overview of spectral data, including NDVI, Aerosol, SST, and Ice/Snow parameters, along with the status of the calibration efforts. Key metrics such as dark counts, stray light, and solar calibration adjustments are discussed to improve data accuracy for monitoring purposes.

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METOP-A AVHRR OV Plan

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  1. Radiometric Space views (noise) PRT Blackbody views Slopes TIR channel striping Selected analog telemetry Geometric Navigation Channel co-registration Spectral Use IASI Products Initial assessment of post-launch visible calibration SNO NDVI Aerosol SST Ice/Snow Radiation Budget Status Done (mostly) In Progress Abort METOP-A AVHRR OV Plan

  2. METOP Instrument Cal/ValAVHRR VISNIR Channels Dark Counts Noise Stray Light Initial assessment of VISNIR calibration F. Wu & F. Yu

  3. Dark Counts - Noise

  4. Dark Counts - Noise

  5. Space View - Channel 3 Day 303 Day 304 Day 305 Day 306 Day 307 Day 289

  6. #8 #6 Space View - Channel 1 #2 #1 Day 303 Day 304 Day 305 Day 306 Day 307 Day289

  7. Dark Counts – Side Interest

  8. http://www.orbit.nesdis.noaa.gov/smcd/spb/fwu/solar_cal/test/metophttp://www.orbit.nesdis.noaa.gov/smcd/spb/fwu/solar_cal/test/metop

  9. Lat. SZA Back Scan - Channel 3 #3 Day 303 Day 304 Day 305 Day 306 Day 307 Day 289

  10. Dark Counts – Stray Light

  11. Dark Counts – Stray Light

  12. Dark Counts – Stray Light SUN ~28 deg

  13. NOAA-18 Ch3 Space View Metop-A Ch3 Space View NOAA-17 Ch3 Space View NOAA-17 Ch3 Back Scan NOAA-18 Ch3 Back Scan Metop-A Ch3 Back Scan Dark Counts – Stray Light

  14. Post-Launch Solar Channel Calibration Multiply 0.9663, 1.1140, and 1.1058 to the pre-launch calibration results for METOP-A AVHRR Channel 1, 2, and 3A, respectively

  15. Year 2006 Day 362 Year 2006 Day 350

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