Construct validity refers to validity of the ideas and concepts used in the research. Constructs are âconceptsâ and âideasâ. This particular validity is often problematic and not clear cut. There is a subjective (interpretive) element in it that makes it somewhat debatable.
The divergence of scale at the poles is a major weakness of the Mercator projection, rendering it unsuitable at high latitudes. Login or Sign Up to answer this question. data-config-site-section=chacha>. What is a Mercator projection A Mercator projection is a mathematical method of showing a map of the globe on a...
Also since a Transverse Mercator projection results in extreme distortion in polar areas, the UTM zones are limited to 80Â°S and 84Â°N latitudes. Polar regions (below 80Â°S and above 84Â°N) use the UPS - Universal Polar Stereographic coordinate system based on the Polar Stereographic projection.