Just Released! Order “Waking Up to Climate Change” by George Ropes, and receive 25% Discount. Learn More

Search
Close this search box.
Search
Close this search box.

HOME          CATEGORIES          OUR TAKE

Using Multiple Metrics to Analyze Trends and Sensitivity of Climate Variability in New York City by City Tech Blogger Jiehao Huang

Previous studies have shown that human activities have been changing the climate, leading to increased societal vulnerability to extreme weather events due to weather variability (Intergovernmental Panel on Climate Change, AR5). In New York State, the annual average temperature statewide has risen about 2.4°F since 1970 and average annual precipitation has increased across New York State since 1900 (Horton et al. ANYAS, 2015). This emphasizes that the study of climate variability is very important. Since the variability of weather is changing over time, we want to determine if the weather is getting weirder today. Various statistical analyses on weather data can best evaluate the behavior of trends, frequency, intensity and variability of weather.

    

Figure 4b                            Figure 4c                     Figure 4d.

This research study examines the daily temperature record of the greater New York City region during the 1979-2014 period. Daily station observations from three greater New York City airports: John F. Kennedy (JFK), LaGuardia (LGA) and Newark (EWR), are used in this study. By applying statistic background, threshold which is formed by two standard deviation away from the mean (Normal Distribution with 95 percentile). Any data above this threshold will classify as extreme events. The extreme threshold indicates how the strength of the overall maximum is changing. μ ± 2σ  where (μ: mean, σ: standard deviation)

Result:  All hot extreme events occur in the summer, as expected since the extreme threshold would have a high value that would only occur during summer, the hottest season [Fig. 4a]. The annual frequency of extreme hot temperatures shows an increasing peak over a long-timescale [Fig. 4b-4d]. This agrees with the recent New York Times article related to Jim Hansen’s research. In the other words, frequency of extreme temperature tends to continue increase due to climate change.

 

 

 

Comment on this article

ClimateYou moderates comments to facilitate an informed, substantive, civil conversation. Abusive, profane, self-promotional, misleading, incoherent or off-topic comments will be rejected. Moderators are staffed during regular business hours (New York time) and can only accept comments written in English.

Leave a Reply

Your email address will not be published. Required fields are marked *


The reCAPTCHA verification period has expired. Please reload the page.

SHARE THIS ARTICLE


More Posts Like This

CITY TECH BLOG

My Take On Climate Change

Climate change has been around for a long time on this planet and is a very important topic to know about as it is our home. Climate change has caused weather distortion, prices to increase and stress to infrastructures which results in them having the ability to be broken down

CITY TECH BLOG

My Take On Climate Change

Climate change poses a significant threat to our planet and impacts our daily lives in various ways. In my opinion, addressing climate change should be a top priority for everyone in the world as its consequences affect all aspects of life.   To get to the root of the

CITY TECH BLOG

My Take on Climate Change: Let’s Remain Optimistic

In case there were still doubts, climate change is happening and taking place quickly. Humanity is responsible for this ongoing change and although we already live with the consequences, we can still do something to help make a positive impact. Over the years, human waste was become a