GEOG-120 Lecture Notes - Lecture 23: Spheroid, Water Cycle, Endorheic Basin
24 Sep 2020
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Document Summary
There are both inputs and outputs of matter or energy. A river system (powered by climate and gravity) Closed systems are often referred to as cycles. Global-scale matter flow systems are always closed. Movement of carbon in different chemical forms. Often depends on scale of observation (i. e. where system boundary is drawn) Occurs when the flow in one pathway act to either reduce or increase the flow in another pathway. Where the feedback reinforces the flow of matter or energy in the system. Where the feedback reduces the flow of matter or energy in the system. A steady state where the flow rates in the various pathways of a system stay about the same. Systems in equilibrium are usually regulated by some form of negative feedback. This lake is in a closed basin. The lake is in equilibrium if the inflows and outflows of water are balanced. Increased precipitation leads to rising lake levels.
