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University of Texas, Arlington *
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Course
1330
Subject
Geology
Date
Dec 6, 2023
Type
Pages
2
Uploaded by CorporalEnergyManatee27
GEOL 1330
Name: Damar Nunez
Global Warming
Lab #1
1.
(50 points) Find temperature data for July 1- July 31, 2023, for Arlington or the
Dallas-Fort Worth area, e.g. from the National Weather Service
(
http://www.weather.gov/fwd/dfwclimo
) or weather.com or another website of your
choice (please list your source).
Record the daily high and low temperature in a table.
Construct a graph of the high and the low temperature for this time period (either
using Excel or drawing your own graph on graphing paper).
Now compare your
graph to the climate data for July for Fort Worth/Dallas
(
https://www.weather.gov/fwd/dfw_normals
) with regard to the “normal”,
“maximum”, and “minimum” temperatures.
What are your observations?
In this
context, describe the difference between weather and climate.
My observations for the “high” (orange) of July 2023, compared to the “normal high”
(yellow), is that the orange line is pretty consistently higher than the yellow line, until
14-17, where the weather high drops to the normal high weather. The climate has
increased like positive feedback causing an amplified response of the climate system
to increase which made the daily weather increase. In the line graph table, the normal
high and normal low would seem to be the climate because its consistent while the
high and low seem more like daily weather because it’s not consistent because of days
14-17 and 20-24 and once more on days 27-31 where them temperatures all aren’t
consistent, but the whole thing, the temperature is above what the graph information
shows as normal high for July. While observations of the low and the normal low I
see that the normal low is also consistent like the normal high and that the low is
closer to the consistence of the normal low but it’s still above the normal low. It is
doing the same thing as the normal high and high it’s a positive feedback, when the
highs get higher the lows also get higher.
2.
(30 points) Look through recent newspapers and magazines for articles that mention
climate change, global warming or the greenhouse effect. List some of the major
statements from two different sources (and please cite your sources).
According to
what you have learned so far, are these statements correct?
“Earth is likely to cross a critical threshold for global warming within the next decade,” I think
that this statement is correct because in the past 14 decades, global warming has been
increasing.
https://www.nytimes.com/2023/03/20/climate/global-warming-ipcc-earth.html
“Flooding is an increasing issue as our climate is changing” It is said that our global temp has rose about 1.98
degrees Fahrenheit from 1901 to 2020. I know that some states rely on snow melting near to provide water
during warmer months but if the snow melts faster or at unusual times because of the change in temperature
the water is no longer a reliable resource for water for these states.
https://www.noaa.gov/education/resource-collections/climate/climate-change-impacts
3.
(20 points)
a)
What are positive and negative feedbacks in the climate system?
Positive feedback is when an amplifying process that could cause either increased cooling or
increased warming, and negative feedback is an de-amplifying process where it can cause either
decreased cooling or decreased warming.
b)
Give an example of (and explain) positive feedback in the climate system.
Changes in sea ice are positive feedback. Ice-Albedo feedback, when the sun melts the ice
causing the ocean to be exposed which lowers albedo, causing an increase in absorbed sunlight,
which then heats up the water and that also causes melting of the sea ice.
Teamwork in the lab is encouraged.
However, each student must provide his/her own
answer.
Copying of answers results in a grade of zero for all students involved.
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