Environmental Studies, The Blue Planet, Chapter 1

Box Model
A simple, convenient graphical representation of a system.
Closed System
A system in which the boundery permits the exchange of energy but not matter.
Earth System Science
The science that studies the whole planet as a system of parts and focuses on the changes within and amongst those parts.
Flux
The rate at which energy or matter is transferred.
GIS (Geographic Information Systems)
Computer-based software programs that allow massive amounts of spatially-referenced data points along with their characteristics.
Isolated System
An impossible system in which the boundary prevents the exchange of energy or matter.
Model
It’s a model.
Open System
A system that can exchange both energy and matter across its boundary.
Remote Sensing
The continuous collection of info about a target from a distance.
Reservoir
Places that a material collects and is stored over time.
Residence Time
Time material spends in a reservoir.
Sequestration
Whenever reservoirs are isolated from contact with the rest of the world for a long time.
Sink
Not just where you wash your dishes. When the flux of a substance into a reservoir is greater than the flux out of it.
Source
Opposite of Sink.
Steady State
When the flux into and out of something are equal.
System
A portion of the universe that can be isolated form the rest of the universe for the purpose of observing and measuring changes.
Anthroposphere
The human sphere.
Atmosphere
Nothing but air.
Biogeochemical Cycle
The movement of chemical elements or compounds that cycles through the biosphere as well as through other earth reservoirs.