< Radiation astronomy < Hydrometeors
Nimbostratus virga is shown. Credit: Simon Eugster.

Hydrometeor radiation astronomy is a lecture for the radiation astronomy department course on the principles of radiation astronomy.

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Quiz

  

1 Why is much of the surface of Mars covered with red iron oxide dust when the rocks that compose much of its surface are blue or violet?

Mars has been systematically bombarded with small iron-nickel meteorites or micrometeorites that oxidize in its atmosphere
Mars has been frequently bombarded with hematite containing micrometeorites
asteroid impacts on Mars may have forced iron from near its core into the atmosphere and onto the surface as hematite dust that oxidized
Mars is like Earth in surface hematite composition, but Earth has much more water
precipitation from iron-rich water

2 Which of the following is not a radiation phenomenon associated with a comet?

airglow
elongated dust particles
high albedo
olivine
Rayleighs
coronal mass ejection

3 Which of the following are radiation astronomy phenomena associated with the apparent liquid-object Earth?

rain
snow
hail
neutron emission
polar coronal holes
meteor emission
rotation

4 Complete the text:

Match up the item letter with each of the cosmogonic possibilities below:
interior models of the giant planets - A
high interest for cosmogony, geophysics and nuclear physics - B
hierarchical accumulation - C
clouds and globular clusters - D
cosmic helium abundance - E
deuterium fusion - F
a large deficiency of light elements - G
after galactic sized systems had collapsed - H
the motions of hydrogen

formation of luminous quasars

.
stars with an initial mass less than the solar mass

.
rotating liquid drops

.
primordial is less than 26 per cent

.
a solar mixture of elements dominated by hydrogen and helium gas

.
around 13 Jupiter masses

.
smaller rocky objects

.

5 The charge on a planetary dust particle may change with?

6 Which weather phenomena are most likely to interfere with observing stars?

a late-summer rainstorm
a clear sky
an approaching dust storm
below normal temperatures
a typhoon
a snow fall
fog

7 True or False, A hydrometeor is a precipitation product.

TRUE
FALSE

8 Usually associated with clouds filling the sky, thunder and lightning, wind and what water based meteorites

9 True or False, A lithometeor is a rocky-object meteor.

TRUE
FALSE

10 The North Atlantic Current (NAC) may be associated with which of the following?

North Atlantic Drift
Mercury
North Atlantic Sea Movement
warm western boundary current
Jupiter
within the Atlantic Ocean
extends the Gulf Stream northeastward

11 True or False, A cryometeor is a very large chunk of amber.

TRUE
FALSE

12 Complete the text:

An aerometeor is a

unit of air traveling or

through an atmosphere.

13 Yes or No, The North Pacific Subtropical Gyre is an anticyclone meaning the circulation is in a clockwise direction around its high pressure at the center because of its placement in the Northern Hemisphere.

No
Yes

14 On 19 May 1910, the Earth actually passed through the tail of what comet.

15 True or False, The observations of planetary motion agree with computed orbits to the accuracy of the observations.

TRUE
FALSE

16 A cloud at nearly a quarter of the distance to Proxima Centauri is called the

17 True or False, Clouds are a form of radiation because they have a temperature gradient.

TRUE
FALSE

18 True or False, The North Pacific Subtropical Gyre and the much smaller North Pacific Subpolar Gyre make up the two major gyre systems in the mid-latitudes of the Northern Pacific Ocean driven by the Trade winds and westerly winds.

TRUE
FALSE

19 The North Pacific Gyre is the

largest ecosystem
solar wind
on Earth
between the equator
and 50° N latitude
comprising 20 million square kilometers

20 True or False, In oceanography, a gyre is any large system of circulating ocean currents, particularly those involved with large wind movements.

TRUE
FALSE

21 Complete the text:

Precipitation products of the condensation of atmospheric

are called

.

22 True or False, Sudden flash floods that happen because of heavy rains is the biggest reason for weather-related deaths.

TRUE
FALSE

23 Which of the following are radiation astronomy phenomena associated with a thunderstorm

a storm
thunder
lightning
cumulonimbus
rain
meteor emission
rotation

24 True or False, Liquid moisture that falls visibly in separate drops is called rain.

TRUE
FALSE

25 Complete the text:

The

on the island of Maui has the highest average annual

in the

Islands.

26 True or False, Rainbands in advance of warm occluded fronts and warm fronts are associated with weak upward motion.

TRUE
FALSE

27 Which of the following is not a characteristic of showers?

throwing a beam
meteors
rain
snow
hail

28 True or False, Bands of thunderstorms can form with sea breeze and land breeze boundaries.

TRUE
FALSE

29 Which of the following are radiation astronomy phenomena associated with rainbands?

cloud and precipitation area
an excess brightness at or near the edge
significantly elongated
warped by mountain barriers
generated by differences in temperature
can be stratiform or convective
in advance of warm occluded fronts

30 True or False, Drizzle is a light liquid precipitation consisting of liquid water drops smaller than those of rain.

TRUE
FALSE

31 One difference between mist and fog is

.

32 True or False, Water or other liquid finely suspended in air is called a mist.

TRUE
FALSE

33 Mechanisms of producing precipitation include

convective
stratiform
gas-expansion velocity decreases
orographic
adaptive optics
the light of the neutral CN-radical

34 Yes or No, Short, intense periods of rain in scattered locations are called "showers."

Yes
No

Hypotheses

  1. Meteors range in size from galaxy clusters to dust grains and molecular clusters.

See also

{{Radiation astronomy resources}}

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