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8 REPORTING ON PROCESSING AND INVERSION<br />

This section comprises minimum requirements to the geophysical data<br />

reporting.<br />

The geophysical data reporting shall account <strong>for</strong> conditions which have had<br />

significant influence on <strong>processing</strong>, inversion <strong>and</strong> the results of the inversion.<br />

8.1 Processing<br />

The data <strong>processing</strong> report shall, as a minimum, comprise the following:<br />

<br />

<br />

<br />

<br />

An overview of the parameters used <strong>for</strong> <strong>processing</strong>.<br />

An account <strong>for</strong> the choice of:<br />

Trapezoidal filter averaging widths<br />

Sounding density - sounding distance <strong>and</strong> relation to the<br />

selected averaging filter width.<br />

Strategy <strong>for</strong> elimination of coupled data<br />

The first used gate time in consideration of the bias contents.<br />

An Aarhus Workbench Workspace with <strong>processing</strong> nodes.<br />

All data types are h<strong>and</strong>ed over digitally.<br />

8.2 Inversion results<br />

The inversion results are typically presented as sections, average resistivity<br />

maps <strong>and</strong> other relevant themes, e.g. elevation of the conductive subsurface.<br />

The map/report shall specify how the maps were made <strong>and</strong> which calculation<br />

method was used <strong>for</strong> the mean resistivity maps, search criteria, griding<br />

methods, etc. All Danish maps are provided as Euref89,UTM zone 32 (33). Ref.<br />

/1/ contains general in<strong>for</strong>mation on the presentation of TEM data.<br />

The interpretation section of the report shall, as a minimum, comprise the<br />

following:<br />

An account <strong>for</strong> the choice of:<br />

The number of layers in the few-layer inversion<br />

The number of layers <strong>and</strong> the depth of discretization of smooth<br />

models<br />

Start model including layer boundaries <strong>and</strong> layer resistivity values<br />

Vertical <strong>and</strong> lateral constraints<br />

A priori constraints - if relevant<br />

Maps, please find further specification details in Appendix 7.<br />

Aarhus Workbench Workspace with inversion results.<br />

8.3 Reporting, GERDA<br />

The raw data, <strong>processing</strong> <strong>and</strong> inversion results are reported to GERDA in<br />

accordance with the applicable convention <strong>for</strong> reporting to the GERDA<br />

database.<br />

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