Blog Archives

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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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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NASA GISS’s Annual Global Temperature Anomaly Trends

January 16, 2015
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NASA GISS’s Annual  Global Temperature Anomaly Trends

NASA’s Goddard Institute for Space Studies (GISS)  has released their December, 2014 anomaly data, showing that 2014 was the warmest year in the warmest decade in the 1880 – 2014 instrumental temperature record period. NASA’s results are consistent with the … Continue reading →

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Animated Images of Arctic Sea Ice Extent Decline

September 5, 2012
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Animated Images of Arctic Sea Ice Extent Decline

This post shows how to download and animate a series of Arctic Sea Ice Extent images using R and the animation package. In my previous post, I showed how to download the daily arctic sea ice extent  data and generate … Continue reading →

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R Script to Build Animation of Arctic Sea Ice Extent – Update 12/20/13

August 29, 2012
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R Script to Build Animation of Arctic Sea Ice Extent – Update 12/20/13

In my previous post I showed an animation of Arctic Sea Ice Extent from the 1980’s through August, 2012 (link).  In this post, I show how to build this Arctic Sea ice Extent  animated chart. Source Data The Arctic Ice … Continue reading →

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