The mountains, hills, valleys, plateaus, plains, and deserts that we all know are just a few examples of landforms. These geographical features are important not only because they make up one-fourth of our world, but they also regulate the ecosystem, climate, and weather, making it possible for humans like us to live.

Geomorphologists seek to understand why landscapes look the way they do, to understand landform and terrain history and dynamics and to predict changes through a combination of field observations, physical experiments and numerical modeling.

geologist

Jan Ivey’s class have been studying landforms as part of their science studies and using materials such as playdough to create representations of the landforms they’ve been studying. Erosion by water and wind can wear down land and create landforms like valleys and canyons.

Landform is the best correlation of vegetation and soil patterns at meso- and microscales. This is because landform controls the intensity of key factors important to plants and to the soils that develop with them (Hack and Goodlet 1960; Swanson and others 1988).

Landforms include hills, mountains, plateaus, canyons, and valleys, as well as shoreline features such as bays, peninsulas, and seas, including submerged features such as mid-ocean ridges, volcanoes, and the great ocean basins.

As nouns the difference between depression and valley is that depression is (geography) an area that is lower in topography than its surroundings while valley is an elongated depression between hills or mountains, often with a river flowing through it.

As per the IMD, a depression is a low pressure which has an associated wind speed of 32-50km/hour. As per their scale, under favourable conditions, a low pressure in the sea intensifies into a depression, then into a deep depression and then into a cyclonic storm and so on.

A depression is represented by a series of concentric closed contours with the inner contours having lower elevation than their outer surrounding. There are small tick marks or hachures on these contour lines pointing towards lower elevation.

In geology, a depression is a landform sunken or depressed below the surrounding area. Depressions form by various mechanisms. Erosion-related: Blowout: a depression created by wind erosion typically in either a partially vegetated sand dune ecosystem or dry soils (such as a post-glacial loess environment).

Rule 3 – contour lines do not touch or cross each other except at a cliff. Rule 4 – every 5th contour line is darker in color. This is an INDEX contour line. Rule 5 – Contour lines are closer together in steep terrain and farther apart in flat areas.

They are the lines that reflect the movement of your eye in and around what you see. While contour lines describe edges, cross-contours describe form and volume. Think of a topographical map–the lines move across the terrain. Cross-contour lines do the same thing.