Chapter 10 Flashcards
What was the warmest year?
2023
How much does temp. increase by?
1.20 C
what are
the four climate trends?
D. Temp. Range = Decreased precip.
sealevel rise =18.5 cm
snow covers = Dcreased
early spring melt—later fall frost(*longer growing season)
what would effect the entire cryspher to be thawed/melted–67m?
Sea Level Rose:
permafrost thaws 3-10cm
sea ice melt 4 cm
greeland ice sheet 6.5
antartic ice sheet 60
what are the two reasons climate is changing?
Natural Mechanisms
&
Human Mechanisms
what are the natural mechanisms?
solar output
earth-sun
movement of continents
atmoshperic variability
volcanic activity
*SEMAV (SEMEN)LOL
what are the human mechanisms?
land use/ land cover
atmoshperic chemistry
**greenhouse gases
what is the solar constant?
1372
what are the 3 earth-sun relationships?
EPO
E-eccentricity(earth orbit)
P-precession(axis)
O-obliquity(tilt)
*NEPO (w.out n)
what is General Circulation Models
numerical climate model that simulates earths circulation
*past/future climate
*cause and effect
what is the projected temp rise?
1.4-4.4 C
what is the prediction of precipitation?
increase(decrease in sum)
10 to 30%
what is also predicted for the future?
intense heat waves
droughts
heavy rain
tropical cyclones more intense
In which of the climate regions is College Station located?
Which of the following factors does not cause arid and semiarid climates?
Subpolar lows
What’s the correct sequence of climate regions, going from the equator to the North Pole?
Tropical, Arid, Mesothermal, Microthermal, Polar
True or false? As a consequence of climate change, precipitation has uniformly decreased around the world.
FALSE
All of the following are natural mechanisms of climate change, except which one?
changes in earth-sun relationships
volcanic activity
movement of continents
land cover/land use change
atmosphere/ocean variability
*land cover
Despite what we learned earlier in the semester, which of the following is not actually constant?
Earth’s elliptical orbit
Earth’s tilt
solar output (1372 W/m2)
axial parallelism
none of these are actually constant
*none
Temperature increases due to climate change are occurring most strongly in which part of the globe?
arctic
True or false? In the short term, large volcanic eruptions can cause global cooling
TRUE
On which time scales can changes in earth-sun relationships affect climate?
geological
True or false? Results from general circulation model simulations suggest that climate change is caused by a combination of anthropogenic (human) and natural factors
TRUE
