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<p align="left" class="secHeader">8.7.2 <b>Analysis techniques for sigma coordinate data </b></p>
<p align="left">Analysis of sigma coordinate data, which requires shifting to depth or pressure coordinates, is facilitated by the function ZAXREPLACE, which converts from layer number to other vertical coordinate axes. See sigma_coordinate_demo.jnl for an example. If the data set provides layer thickness rather than depth a depth variable may