Blog Archives

Annual Mean Temperature Trends – 12 Airports

September 6, 2016
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Annual Mean Temperature Trends – 12 Airports

This animated gif  shows changes in annual mean temperature at 12 East Coast USA airports that had continuous daily data for the 1950 – 2015 period. The data was retrieved from Weather Underground using the R weatherData package . 11 … Continue reading →

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RClimate Script to Assess Local Hot Day Trends

August 29, 2016
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RClimate Script to Assess Local Hot Day Trends

There is ample evidence of global climate change, these are just a few examples  (here, here, here). While global indicators are important to focus attention on the problem and solutions, local data is important to help us understand the situation … Continue reading →

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RClimate Script to Plot 90+ days in summer

August 17, 2016
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RClimate Script to Plot 90+ days in summer

The weatherData package, link , makes it very easy to retrieve detailed weather data from hundreds of stations across the US. I developed this script to retrieve and plot daily maximum and minimum temperatures and highlight days with 90+ max … Continue reading →

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El Nino – La Nina & Hurricanes

August 3, 2016
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El Nino – La Nina & Hurricanes

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Access and Analyze 170 Monthly Climate Time Series Using Simple R Scripts

August 2, 2016
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Access  and Analyze 170 Monthly Climate Time Series Using Simple R Scripts

Open Mind, a climate trend data analysis blog, has a great Climate Data Service that provides  updated consolidated csv file with 170 monthly climate time series. This is a great resource for those interested in studying climate change. Quick, reliable … Continue reading →

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Checking Historical Precipitation Data Quality

July 30, 2016
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Checking Historical Precipitation Data Quality

Precipitation Data Quality Concerns I am interested in evaluating potential changes in precipitation patterns caused by climate change. I have been working with daily precipitation data for the Philadelphia International Airport, site id KPHL, for the period 1950 to present … Continue reading →

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Tracking Precipitation by Day-of-Year

July 28, 2016
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Tracking Precipitation by Day-of-Year

Plotting cumulative day-of-year precipitation can helpful in assessing how the current year’s rainfall compares with long term averages. This plot shows the cumulative rainfall by day-of-year for Philadelphia International Airports rain gauge. The source data was downloaded from the Pa … Continue reading →

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RClimate

July 26, 2016
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RClimate

This blog focuses on how to use R to study climate data. I will be using readily available public  climate data and R to understand global warming and climate trends. These charts show the types of that I will be … Continue reading →

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Climate Examples Using RClimate

January 18, 2015
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Climate Examples Using RClimate

Andy Long at Northern Kentucky University  has created a RClimate web page that provides numerous examples of climate data analysis using RWeb,  RClimate scripts and publicly available climate  data. Filed under: R Climate Data Analysis Tool, RClimate Script Tagged: R scripts

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NOAA’s Annual Global Temperature Anomaly Trends

January 16, 2015
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NOAA’s Annual Global Temperature Anomaly Trends

NOAA has released their December, 2014 global anomaly data, allowing us to examine the 1880 – 2014 global temperature anomaly trend. This R script trend charts shows the annual and average decadal temperature anomalies for the NOAA data series.   … Continue reading →

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