Department of Geography and Environmental Systems
UNIVERSITY OF MARYLAND BALTIMORE COUNTY
GEOG-311 Dr.
Ali Tokay
Weather and Climate
A
Please use the answer sheet. Each has 2.5
points.
1) During the cold (negative) phase of PDO, Aleutian low
is …….. resulting in more storms into ………..
a) weaker, Alaska
b) stronger, Alaska
c) weaker, Pacific Northwest
d) stronger, Pacific Northwest
2) Following ONI, El Nino is defined when sea surface
temperature is at or above …….. deg C for 5-consecutive overlapping 3-month
periods.
a) 0.3
b) 0.5
c) 0.9
d) 1.4
3) 12280 m height is typically observed on a ……… mb
map and is coded as …….
a) 200, 122
b) 300, 122
c) 200, 228
d) 300, 228
4) Atmospheric rivers are associated with …… air mass.
a) mT
b) mP
c) cP
d) cT
5) An oceanic front may exist between ……. and ……. ocean currents.
a) Labrador, Norwegian
b) Labrador, Gulf Stream
c) Canary, Norwegian
d) Canary, Gulf Stream
6)
The source region of an air mass cannot be ……..
a) subtropical oceans in summer
b) desert interior of Sahara in summer
c) ice covered interior of Canada in winter
d) mountain regions of the United States in winter
7) A typical height for the 850 mb and 700 mb maps
are ………., respectively.
a) 3000 and 1500 m
b) 3500 and 2000 m
c) 2000 and 3500 m
d) 1500 and 3000 m
8) Heat island circulation is a ……….. phenomenon.
a) micro-scale
b) meso-scale
c) synoptic-scale
d) global-scale
9) During El
Nino, ……………
a) Polar jet moves to the north and Subtropical jet
moves to the south
b) Polar jet moves to the south and Subtropical jet
moves to the north
c) Both Polar jet and Subtropical jet move to the
north
d) Both Polar jet and Subtropical jet move to the
south
10) ………. and ……… currents are the two main components
of North Pacific gyre.
a) Oyashio,
Alaska
b) California,
Alaska
c) California,
Kuroshio
d) Kuroshio, Oyashio
11) ……….. express is originated in Hawaii and brings
heavy rainfall northern and central California.
a) Mayan
b) Siberian
c) Pineapple
d) Tropical
12) Winds are parallel but in opposite direction on
the two sides of a …… front.
a) cold
b) stationary
c) warm
d) occluded
13) A blocking systems is observed in ……………..
a) lower troposphere in the tropics
b) middle to upper troposphere in the tropics
c) lower troposphere in high latitudes
d) middle to upper troposphere in high latitudes
14) La Nina is associated with unusually ………. sea surface temperatures in the central
and east Equatorial Pacific and ……… trade winds.
b) high, strong
c) low, weak
d) low, strong
15) ……….. is associated with the downdraft of a
desert thunderstorm.
a) Mistral
b) Burga
c) Haboob
d) Fohn
16) The minimum wind speed for a jet stream is …… knots
on a weather map.
a) 40
b) 60
c) 80
d) 100
17) IVT is not expressed as a function of
………...
a) specific
humidity
b) vertical
pressure gradient
c) zonal
and meridional wind speed
d) vertical
temperature gradient
18)
Reflectivity at 100 mm6 m-3 corresponds to ……. dBZ.
a) 10
b) 20
c) 30
d) 40
19) Chinook wind is ……….. and ……… wind.
a) warm, dry
b) cold, dry
c) warm, moist
d) cold, moist
20) Land breeze develops during the …… and is …….
than the sea breeze.
a) day, stronger
b) night, stronger
c) night, weaker
d) day, weaker
21) The lake effect snow is associated with southern
movement of ….. air mass.
a) cP
b) mP
c) cT
d) mT
22) If the reflectivity rain rate relation is given
as Z = 100 R0.5, the rain rate is ……. mm h-1 at 1000 mm6
m-3.
a) 100
b) 0.1
c) 0.01
d) 10
23) The north-south shift of the ITCZ governs the
seasonality and amount of rainfall in ………
a) Southern Europe
b) Mediterranean
region
c) sub-Saharan region
d) Sahara region
24) Sea breeze front forms across ……….
a) Michigan
b) Florida
c) Ohio
d) Texas
25) A 24-hour maximum rainfall is observed in …….. in
the US.
a) Hawaii
b) Florida
c) Alabama
d) Texas
26) During positive phase of NAO, the pressure
gradient is …….., resulting in ……… Eastern US.
a) stronger, milder and wetter
b) weaker, milder and wetter
c) stronger, snowy and cold
d) weaker, snowy and cold
27) Height contours are plotted every 120 m on a …….
map.
a) 700
b) 500
c) 300
d) 850
28) The low level jet is typically observed at ……..
millibar map.
a) 700
b) 500
c) 300
d) 200
29) Winter Monsoon is associated with …… conditions
when the wind is from …... in Indian Subcontinent.
a) wet, land to sea
b) dry, land to sea
c) wet, sea to land
d) dry, sea to land
30) ……….. is a katabatic wind in State of Washington.
a) Mistral
b) Columbia Gorge
c) Bora
d) Buran
31) Sea surface temperature base is calculated for
…….. year average and updated every …..… years.
a) 10, 10
b) 30, 10
c) 10, 5
d) 30, 5
32) Frontal fog is induced by ……...
a) radiative cooling
b) evaporative cooling
c) mixing
d) advective heating
33) A warm front in Southeast US typically separates
……. air masses.
a) mT and mP
b) mT and cP
c) cT and cP
d) cT and mP
34) Thermocline is shallow or not exist in ……
a) polar regions
b) tropics
c) mid-latitudes
d) subtropics
35) Polar low is ……. than the mid-latitude cyclone and forms over
relatively …… water.
a) smaller, cold
b) larger, cold
c) smaller, warm
d) larger, warm
36) The air mass ahead of Dry line is ………..
a) warm, dry
b) cold, dry
c) warm, moist
d) cold, moist
37)
For a disdrometer with sampling cross section of 50
cm2, if all the drops are in uniform size and are falling at 5 m s-1,
the sampling volume is ….. m3 at 3 minute period.
a) 1.8
b) 2.5
c) 7.5
d) 4.5
38) Cold-type occlusion is not observed
at ………..
a) Great Lakes
b) New England
c) Pacific Northwest
d) Mid-Atlantic
39) If the rainfall is overestimated 20% and the
observed rain rate is 10 mm h-1, the estimated rain rate is ……… mm h-1.
a) 10
b) 12
c) 8
d) 2
40) Canadian high is a ……………. and forms during …………
a) cold-core anticyclone, winter
b) warm-core anticyclone, summer
c) cold-core cyclone, summer
d) warm-core cyclone, winter
Department of Geography and Environmental Systems
UNIVERSITY OF MARYLAND BALTIMORE COUNTY
GEOG-311 Dr.
Ali Tokay
Weather and Climate
Name:
_______________________________________ .
Please fill the blank. Each has 2.5
points.
41) IOD stands for ____________________________________________________
and AO stands for _________________________________________.
42) The surface winds blow ______________ and ______________
around the cyclone and blows _____________ and _______________ around the
anticyclone in the Southern Hemisphere.
43) The weather symbol for cold frontogenesis is
.
44) The density depends on only on pressure in
_______________ atmosphere and depends on both pressure and temperature in
__________________ atmosphere.
45) Based on NOAA report, the globe is experiencing
_________________ conditions at this stage, while it has been experienced
____________________ conditions during the last two years.
46) The point where cold, warm, and occluded front
meets is called _______________ point which is located to the north of
___________________.
47) ______________________ is the east-west belt of latitude at about 30˚
to 35˚ where winds are predominantly light and the weather is hot and dry. The similar weather conditions occur near the
equator and is called ___________________.
48) ______________________________
is an _________________
air mass situated over Siberia that crosses over the North Pole and moves into
Canada, and plunges into the Great Plains, and southward.
49) Plot height counts on 500 mb map and mark H and L
for maximum and minimum height areas, respectively. 10 points.