This document explores bad deconvolution design by varying the start time and length of the deconvolution design window from 4000ms to 500ms, and by excluding or including the direct arrival. It finds that using short design gates and including strong events like the direct arrival can lead to artifacts in the deconvolved data.

1. Exploring bad deconvolution design:
• Start of design window shown in blue
• Excludes or includes direct arrival
• Design gate length varies from 4000ms to 500ms
• No surprises:
Short gates and strong events lead to artefacts!

2. No Deconvolution applied

3. 0-4000ms design 24ms gap, 240ms operator, direct arrival excluded

4. 0-1000ms design 24ms gap, 240ms operator, direct arrival excluded

5. 0-500ms design 24ms gap, 240ms operator, direct arrival excluded

6. 0-4000ms design 24ms gap, 240ms operator, including direct arrival

7. 0-1000ms design 24ms gap, 240ms operator, including direct arrival

8. 0-500ms design 24ms gap, 240ms operator, including direct arrival