AHS 104 Lab 7: Radar Meteorology
Name ____________________
Meteorologists rely heavily on radar to forecast the weather. This lab is designed to give you an introduction to
radar meteorology. Refer to the Day 20 slides for help completing the worksheet.
1. In World War II, military personnel used radar to locate enemy ________ and ______________, later
finding out
2. There are
______________________________ also appeared on radar.
National Weather Service radars across the U.S.
3. The ________________________ is measured in dBZ and displayed as colors in a radar image.
4. The highest reflectivity will be produced by ______________ (choose from rain, snow, sleet, or hail).
5. Wind velocity information uses the ___________ effect and is based on the motion of
____________________.
6. The angle of the radar beam with respect to due North is called the __________________ angle.
7. On a velocity image, __________-colored regions indicate movement away from the radar, and
____________-colored regions indicate movement toward the radar.
8. Bow echoes usually indicate a region of damaging straight-line _______________.
9. Weather radars operate by collecting a series of scans at increasing ______________ angles.
10. The most violent storms reside in and around the
______of a hurricane.
11. Letter A in the figure on the left below refers to which feature of a supercell thunderstorm?
__________________
This feature is a sign of thunderstorm _____________ choose from (rotation, updraft, downdraft, or hail)
This feature may be associated with what kind of severe weather? _____________________
12. Refer to the figure on the right above. At point A, raindrops are moving in what direction relative to the
radar (located at the star)?
(a) towards
b) away from
Raindrops are moving in what direction relative to the radar at point B?
(a) towards
b) away from
Question 1 (1 point)
Weather radar normally displays the heaviest rainfall rates in these colors:
orange and red
blue and green
dark green and violet
Question 2 (1 point)
The energy in the reflected radar signal is called the
and has units of dBZ.
reflectivity
microwaves
O
kinetic energy
elevation
Question 3 (1 point)
Weather radars operate by collecting a series of scans at increasing
angles.
elevation
reflectivity
distance
acute
Question 4 (1 point)
On a Doppler radar velocity image,
-colored regions indicate movement away from the radar,
and
_-colored regions indicate movement toward the radar.
red or pink; green or blue
green or blue; red or pink
neither of the above
Question 5 (1 point)
in which the thunderstorm winds may be
A “bow echo” on a radar image indicates a type of
especially strong.
hook echo
eye wall
Doppler effect
squall line
Question 6 (1 point)
The most violent storms reside in and around the of a hurricane.
outer rainbands
eye wall
eye
periphery
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