Material published in GEOPHYSICS should show relevance of a geophysical method to hydrocarbon, mining, geothermal, groundwater, environmental, or engineering applications. A predominantly mathematical paper should be illustrated by a data example. Case histories, tutorials, and interpretation papers are of special interest. Manuscripts on fundamental geophysical principles that are relevant for exploration are also welcome. Geophysics should have broad appeal, ranging from practical field studies to more theoretical treatments. GEOPHYSICS encourages the estimation of the uncertainties of the obtained results. Attempts to qualify and to quantify the uncertainties are well received.