1 / 5

GOME-2 FM202-2: PM2 Slit function analysis

GOME-202-2 slit function analysis PM2 Part 3: Retrieved Slit R. Siddans, B. Latter, B. Kerridge RAL Remote Sensing Group 26 th June 2012 RAL. GOME-2 FM202-2: PM2 Slit function analysis. Linearly mapped error analysis for FM202-2 Dominant error – wavelength registration?

elga
Download Presentation

GOME-2 FM202-2: PM2 Slit function analysis

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. GOME-202-2 slit function analysisPM2Part 3: Retrieved SlitR. Siddans, B. Latter, B. KerridgeRAL Remote Sensing Group26th June 2012RAL

  2. GOME-2 FM202-2: PM2Slit function analysis • Linearly mapped error analysis for FM202-2 • Dominant error – wavelength registration? • Note larger Echelle angular range used cf. 2004 • Gaussian broadening more significant on 0.5mm (expected) • New vs. old • 0.5mm +/-10% • 1.0mm +/-20% • Codes in plots: FM202-{ver}_{slit_width}_{order}[g] • {ver} : 1= 2004, 2 = 2012 • {slit_width} : _1_0 = 1mm, _0_5 = 0.5mm • {order} : (not present)=main order, _1=overlapping • “g”= SFS Gaussian broadened

  3. SFS shape Order 1mm / 0.5mm New / old 1mm New 1mm/old 0.5mm

  4. SFS shape New (GB)/Old 0.5mm New (no GB)/Old 0.5 Old 1mm Order Old 1mm /0.5mm

  5. Conclusions • Large change in FPA1,3,4 slit functions • Some change in FPA2 • Wavelength registration for FM202-2 still dominant error source (FM202-1 more consistent) • SFS shape significant (particularly 0.5mm slit) • Impact on O3 profile? Wls error dominated? • Need to improve wavelength information: • Remove extreme Echelle angel data? • Retrieve?

More Related