1.1 systems & processes Flashcards
example of positive feedback loop w sea ice melting
sea ice melts -> decreased albedo effect -> temperatures increase -> more sea ice melts
example of negative feedback loop starting w global warming
global warming -> increased evaporation + more cloud cover -> decreasing incoming solar radiation -> cooling of temps
define stores
a part of the system where energy/mass is stored or transformed
define flows
where energy/matter moves in the system
Example - Evaporation
example of open system
local scale water cycle, drainage basin
example of closed system
global water cycle, nothing exits system
example of input
precipitation ☔️
example of outputs
streamflow 🌱, evapotranspiration
examples of flows
Infiltration, percolation, throughflow, surface run-off, ground water flow, streamflow, stemflow
example of stores
Soil Water
Groundwater - Water that is stored in the pore spaces of rock
River Channel
Surface Storage - Water stored in puddles, ponds, lakes
what are the 3 types of precipitation
convectional, relief and frontal
define input
addition of matter/energy into a system
define output
anything that leaves the system
define the term isolated system
have no interactions w/ anything outside the system boundary, no input/output of energy or matter, rare in nature, most are controlled lab experiments
define the term closed system
have transfers of energy both into and beyond the system boundary but not transfer of matter
