The following table shows examples of variables, operational definitions, and values. Variables, operational definitions, and values. The last definition in the table (number of hairs on the left thumb) reminds us that operational definitions are not always good or valid.They are simply descriptions of measurement actions. You could argue that the last definition is an operational definition.istinguishing Operational Definitions, Variables, and Values. Throughout this book we will be referring to psychological variables. Some students do not have a grasp of the simple term variable, so this might be a good time to clarify the concept.
A fluvioglacial landform created by both erosion and deposition by melt water is a Sandur or outwash plain that often has braided streams. Outwash plains are areas that may have been glaciated by ice sheets and then affected by melt water or they may be areas in front of the snout.
On a glacier, the accumulation zone is the area above the firn line, where snowfall accumulates and exceeds the losses from ablation, (melting, evaporation, and sublimation). The annual Glacier equilibrium line separates the accumulation and ablation zone annually. The accumulation zone is also defined as the part of a glacierâs surface, usually at higher elevations, on which there is net accumulation of snow, which subsequently turns into firn and then glacier ice. Part of the glacier where snow builds up and turns to ice moves outward from there. Glaciers.