Semester 2 Unit 1 Sci Notebook Assignment Heat Wave Graphs - Brianna Njuguna (1)

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Apr 3, 2024

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Unit 1 Scientific Notebook Assignment For more information, see https://www.epa.gov/climate-indicators/climate-change-indicators-heat- waves Examine the graphs above. These graphs show information about heat waves in the United States over the 60 years. Notice how the heat wave number, length of the events, season length, and intensity have changed. 1. Look at the Heat Wave Frequency graph. What do you notice about changes in the number of heat waves? (1 point) Answer: Based on my analysis of heat wave frequency within major U.S. urban centers, I have elucidated a discernible temporal progression. Within the dataset, it is evident that the annual incidence of heat waves has increased in frequency, ranging from a modest two in the 1960s to a conspicuous six in the subsequent decades, spanning the 2010s and 2020s (refer to Figure 1). My observations indicate a notable alteration in local climatic dynamics, reiterating the
imperative for nuanced examination and comprehension of evolving environmental patterns. The augmentation in heat wave frequency is a crucial component of comprehensive research efforts to discern the effects of climate change on the environment. 2. Look at the Heat Wave Intensity graph. What do you notice about what has happened to the temperature? (1 point) Answer: According to my analysis, the heat wave intensity graph exhibits a discernible shift in the intensity of heat waves across the five decades examined. The average heat wave spanning the 50 cities depicted in Figures 1 & 2 has shown a noticeable increase from 2.0°F above the local 85th percentile threshold in the 1960s to 2.3°F in the 2020s (as illustrated in Figure 1). My observation demonstrates that heightened heat wave intensity is increasing over time. In essence, my observations contribute to the broader discourse on climate dynamics, emphasizing the necessity for sustained monitoring and in-depth analysis to comprehend the evolving patterns of extreme weather events. 3. Look at all four graphs. Do they support the idea that the climate is changing? Using at least one specific example from one of the graphs, explain why or why not. (3 points) Answer: Yes, it appears that the graph supports the idea that the climate is changing. The observed trends in the heat wave season graph strongly correlate with the consensus that the climate is exhibiting crucial shifts. The average duration of the heat wave season across the 50 cities has expanded considerably, increasing from slightly over 20 days in the 1960s to surpassing 70 days in the 2020s (as indicated in Figure 1). This severe extension in the season raises pertinent concerns about the evolving nature of climate patterns. Beyond the numerical shift, the temporal elongation of heat wave seasons illustrates the potential challenges communities may encounter in adapting to prolonged periods of extreme heat. For instance, it serves as a valuable indicator of the complex interplay between climate change and its implications for societal well-being, advocating for persistent evaluation & proactive measures in the face of evolving environmental conditions.
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