Department of Geography and Environmental Systems

UNIVERSITY OF MARYLAND BALTIMORE COUNTY

GES-311

Weather and Climate

Please use the answer sheet. Each has 2.5 points.

1) Solar flares that erupts from the …….. into the…………. intensify the solar wind.

a) photosphere, corona

b) core, corona

c) core, photosphere

d) core, chromosphere

2) Earth is………… than the Venus and its atmosphere is ….. the Venus.

a) bigger, thicker

b) smaller, thicker

c) bigger, tinnier

d) smaller, tinnier

3) ……………. is a secondary air pollutant.

a) Nitrogen oxide

b) Carbon monoxide

c) Hydrocarbons

d) smog

4) ……… is mainly composed of carbon dioxide.

a) Mars

b) Jupiter

c) Saturn

d) Uranus

5) For a raindrop of 3 millimeter in diameter, the size parameter is ….. at X-band.

a) p0.1

b) p0.01

c) p0.3

d) p00.03

6) 86˚F corresponds to ……………. ˚C.

a) 20

b) 25

c) 30

d) 35

7) Arctic sea ice extends reaches its minimum during late …………

a) June

b) July

c) August

d) September

8) The frequency of 100 MHz corresponds to the wavelength of …… centimeter.

a) 100

b) 10

c) 300

d) 30

9) The greenhouse gases is responsible to raise the temperature of the Earth by …..… C.

a) 33

b) 15

c) -18

d) 20

10) 4 mm corresponds to ……….. Dobson units.

a) 0.04

b) 0.4

c) 400

d) 40

11) UV index 9 corresponds to …... level.

a) high

b) moderate

c) extreme

d) very high

12) .................... absorbs solar infrared radiation.

a) Ozone

b) Carbon dioxide

c) Water vapor

d) Oxygen

13) Rain becomes acidic when the pH factor is less than …….

a) 6

b) 8

c) 5

d) 7

14) The average surface temperature of Venus is 480˚C, it radiates its maximum radiation at …………. micrometer.

a) 480/2897

b) 753/2897

c) 2897/480

d) 2897/753

15) ……. has the highest heat conductivity.

a) Air

b) Water

c) Ice

d) Silver

16) …… kg substance has the potential energy of 600 Joule at 3 m height (gravitational constant = 10 m/sec²)

a) 10

b) 20

c) 30

d) 40

17) The annual average precipitation of Baltimore is ……. inches.

a) 38

b) 42

c) 46

d) 54

18) A weather radar that operates at 5 cm wavelength corresponds to …..band.

a) S-band

b) L-band

c) C-band

d) X-band

19) …….. are important gases for the atmospheric radiative processes.

a) Nitrogen, Ozone, Water Vapor

b) Carbon dioxide, Ozone, Water Vapor

c) Ozone, Carbon dioxide, Nitrogen

d) Water vapor, Carbon dioxide, Nitrogen

20) ………. and …….. passages are the main two sea routes in the Arctic region.

a) Southwest and Northwest

b) Southeast and Northeast

c) Northwest and Northeast

d) Southeast and Southwest

21) Hour angle at 4 pm is ………… degree

a) +60

b) -60

c) +30

d) -30

22) The declination angle on July 1 is ……… degree

a) 0

b) 23

c) -22

d) 14

23) Baltimore is not characterized by …………….

a) subtropical climate

b) all wet season

c) warm summer

d) extremely cold winters

24) The average albedo of the ocean surface is …….% on a global basis.

a) 31

b) 46

c) 8

d) 71

25) The speed of light has approximately……... times of speed of sound.

a) 100

b) 1000

c) 10,000

d) 1,000,000

26) The planetary albedo of Venus is ……….%.

a) 78

b) 17

c) 7

d) 31

27) Aurora ovals are centered on the northwest tip of ……

a) Alaska

b) Greenland

c) Norway

d) Iceland

28) ……… has the highest concentration as an air pollutant in the atmosphere.

a) Hydrocarbons

b) Nitrogen oxide

c) Ammonia

d) Carbon monoxide

29) Free chlorine atoms combine with methane to form ................ in the stratosphere.

a) ClO + CFC

b) HCl + CFC

c) ClO + CH₃

d) HCl + CH₃

30) Earth radiates its maximum radiation at …………… micrometer corresponding to …..... radiation

a) 0.5, visible

b) 10, infrared

c) 0.5, infrared

d) 10, visible

31) Air quality index of 120 requires ………… level of concern.

a) moderate

b) unhealthy for sensitive groups

c) unhealthy

d) very unhealthy

32) A planet that completes one internal revolution in 10 hours has the angular momentum of …… sec^-1.

a) p/36000

b) p/1800

c) p/18000

d) p/3600

33) A planet with 5x10²⁰ kg mass and 6000 km radius has the moment of inertia of …. kg m².

a) 36 x 10¹²

b) 72 x 10³²

c) 12 x 10²⁶

d) 30 x 10²⁴

34) ….. in the troposphere helps to global warming, while ….. cools the atmosphere in the stratosphere.

a) CH₄, SO₂

b) O₃ CO₂

c) SO₂, O₃

d) CO₂, CH₄

35) …………… is ideal for jet aircraft travel.

a) Troposphere

b) Stratosphere

c) Mesosphere

d) Heterosphere

36) Aurora borealis is typically observed in ……..

a) Norway

b) Argentina

c) Switzerland

d) China

37) A radiosonde is launched …… a day

a) once

b) twice

c) three times

d) four times

38) Airglow is …….. than aurora and ……… to solar activity.

a) fainter, is related

b) brighter, is not related

c) fainter, is not related

d) brighter, is related

39) For the standard vertical temperature profile, the minimum temperature occurs at …………..

a) tropopause

b) stratopause

c) mesopause

d) thermosphere

40) Sun Protection Factor of 30 allows us to stay under sun …. hours (assume that the skin turns to pink in 20 minutes)

a) 1

b) 3

c) 6

d) 10

Department of Geography and Environmental Systems

UNIVERSITY OF MARYLAND BALTIMORE COUNTY

GES-311

Weather and Climate

Please fill the blank. Each has 2.5 points.

Name: .

Please decode the following surface observation

41) Weather condition is .

42) Temperature and dew point are .

43) Pressure at the time of observation is .

44) Sky condition and visibility are .

45) Pressure 3 hours ago was .

46) Wind direction and speed are .

47) Outgassing occurs during ______________________ activity.

48) 99% of the atmospheric mass is confined within _____ km of the Earth’s surface.

49) Deforestation is responsible _________% increase of C0₂ concentration.

50) OMI stands for .

51) Ionosphere is a region within __________________.

52) _________________________ is result of convection and conduction.