Weather and Climate Test 1 Flashcards
(27 cards)
anthropogenic
human influence on the environment
meteorology
day-to-day
climatology
over an extended period
maximum thermometer
mercury filled, constriction near bulb, reset by centrifugal force
minimum thermometer
index rod, alcohol filled, current weather, reset by inverting
rain gauge
collection tube and overflow can
frost gauge
clear when frozen, fluorescent when not, buried underground
Stevenson screen shelter
white so it does not gain heat from sun, raised so it does not gain heat from ground, slats for free flow air
aphelion
Earth is farthest from the sun (July 1)
perihelion
Earth is closest to the sun (January 1)
axial parallelism
Earth’s axis is always in the same position
winter solstice
NP is in total darkness
Dec. 20-23
vernal equinox
Spring
12 daylight hours 12 darkness hours
March 20-23
summer solstice
NP is in total daylight
June 20-23
autumnal equinox
Fall
12 daylight hours 12 darkness hours
Sept. 20-23
direct ray
(solar declination/sub-solar point)
tells us what the current season is
cirrostratus CS
high
very thin
halo
altostratus AS
mid
thin
moon with undefined outline
stratus ST
low
layered
dark/gloomy
thick
nimbostratus NS
very low
thick
rain
cirrocumulus CC
high
very small
rows
altocumulus AC
mid
small
rows
fish scales
cumulus CU
low
big
fluffy
cumulonimbus CN
very big
stretches from high to low
precipitation
