1 / 23

DNB Terrain Correction Slide Fire, AZ Part 2

DNB Terrain Correction Slide Fire, AZ Part 2. William Straka III. 1. Background. IDPS Mx8.4 was implemented on 22 May, 2014 starting with the ~14:40 GMT observation time . One of the key features is Terrain Correction is implemented for the Day Night Band

sukey
Download Presentation

DNB Terrain Correction Slide Fire, AZ Part 2

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. DNB Terrain CorrectionSlide Fire, AZPart 2 William Straka III 1

  2. Background • IDPS Mx8.4 was implemented on 22 May, 2014 starting with the ~14:40 GMT observation time. • One of the key features is Terrain Correction is implemented for the Day Night Band • The TC latitude/longitudes are variables in the GDNBO files and not a separate file. • This means thermal, NIR and DNB emissive sources should now match up in all regions • NDE provided test case over Iceland as so users could adjust their scripts/code accordingly. We wish to acknowledge their help in this • The nightly McIDAS-V was ready before (21 May 2014) the TC navigation was available within the GDNBO files.

  3. Test case • Test case is the Slide Fire in Arizona • Cases from 24-26 May are shown • 24 May 2014 is near nadir, others progress to the left of the scan • Arrow is located at roughly an edge in the theM13 band (terrain corrected) and in the same place for allimages for a given time stamp • Some slides have animations, so use slide show

  4. 24 May 2014, 0914ZM13 – 3.9mm Slide

  5. 24 May 2014, 0914ZM10 – 1.6mm

  6. 24 May 2014, 0914ZDNB – NonTC

  7. 24 May 2014, 0914ZDNB –Terrain Corrected

  8. 24 May 2014, 0914ZDNB non-TC, M10, M13

  9. 24 May 2014, 0914ZDNB_TC, M10, M13

  10. 25 May 2014, 0855ZM13 – 3.9mm Slide

  11. 25 May 2014, 0855ZM10 – 1.6mm

  12. 24 May 2014, 0914ZDNB – NonTC

  13. 25 May 2014, 0855ZDNB –Terrain Corrected

  14. 25 May 2014, 0855ZDNB non-TC, M10, M13

  15. 25 May 2014, 0855ZDNB_TC, M10, M13

  16. 26 May 2014, 0835ZM13 – 3.9mm Slide

  17. 26 May 2014, 0835ZM10 – 1.6mm

  18. 26 May 2014, 0835ZDNB – NonTC

  19. 26 May 2014, 0835ZDNB –Terrain Corrected

  20. 26 May 2014, 0835ZDNB non-TC, M10, M13

  21. 26 May 2014, 0835ZDNB_TC, M10, M13

  22. Observations • All three scenes are cloud free • As can be seen the non-terrain corrected geolocated DNB image of Slide Fire is clearly shifted from the M10 and M13, both which are terrain corrected, hot spots to varying degrees • The terrain corrected DNB geolocation shifts the fire inline with the hot spots indicated in the M10 and M13 band data

  23. Conclusions • These three cases show the amount of variation in the non-terrain corrected data, depending on what part of the scan the fire is located. • Largest shift is when it is on the edge of scane. • It appears that the Terrain Corrected navigation correctly shifts fires in-line with thermal observations. • Based on this, McIDAS-V 1.5 beta appears to correctly use the terrain corrected navigation, if it is available. • In addition it is backward compatible to data without the TC navigation.

More Related