HW5
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School
Embry-Riddle Aeronautical University *
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Course
201
Subject
Astronomy
Date
Jan 9, 2024
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docx
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Uploaded by PresidentWaterSwan45
WX 201 Homework 5
Name___Will Duhe_______Section______
Satellite Products
Use sections 3.4 in Aviation Weather Services to help you with this Homework.
1.)
Satellite imagery is a very important source of weather information, especially over data
sparse regions such as _
Countries
_ without weather data collection and over the
_
Oceans
_. (2 pts.)
2.)
_
Visible
_ (Visible/Infrared) imagery has the highest resolution and therefore, is the most
widely used image type during daylight hours. Why might this imagery be preferred over
infrared imagery during the daytime? (2 pts.)
Because clouds on infrared might not show
up if they are low level and the ground could be warm.
3.)
Visible imagery displays _
reflected
_ sunlight from the Earth’s surface, clouds, and
particulate matter in the atmosphere.
What is another term used to describe the
percentage of sunlight sent back to space by the Earth? (2 pts.)
4.)
When clouds are present in an infrared image, the temperature shown is that of the
_
Cloud Top
_ (average temperature of the clouds/tops of clouds).
When clouds are NOT
present on an infrared image, the temperature shown is that of the _
Ground
_ or
_
Ocean
_.
(3 pts.)
5.)
An infrared image is calibrated to temperature expressed in degrees _
Celsius
_
(Celsius/Fahrenheit) (1 pt.)
6.)
What information is provided by water vapor satellite imagery? (2 pts.)
Quantity of water vapor in the middle and upper troposphere.
7.)
Does water vapor imagery always correspond to pressure levels at or near earth’s
surface? _
yes
_ (yes/no) (1 pt.)
8.)
Name two meteorological features that can be identified using water vapor imagery.
(2
pts.)
Movement and location of weather systems and thunderstorms.
9.)
In visible satellite imagery, _
thick
_
(thick / thin) clouds will appear as bright white,
while in black & white infrared imagery, white clouds indicate _
Cold
_ (warm / cold)
cloud-top temperatures. (2 pts.)
WX 201 Homework 5
Name___Will Duhe_______Section______
(OVER ->)
Use the VIS and IR images for this assignment in Canvas to answer the following questions:
10.)
At what date/time in MST were the images obtained (i.e. what is the valid time)? (2
pts.)
Sept 16, @ 1600 MST
11.)
The most likely cloud type in central Virginia is (cumulonimbus/stratus) _
cumulonimbus
_ (2 pts.)
12.)
The prevalent cloud type offshore over the Atlantic Ocean is (thin
cirrostratus/cumulonimbus) _
cirrostratus
_(2 pts.)
13.) What is the approximate minimum cloud top temperature over central Virginia? _
65 C
_
(2 pts.)
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