Blog Archives

Arctic Amplification – November, 2013

December 18, 2013
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Arctic Amplification – November, 2013

NASA’s GISS temperature anomaly map (link) for November, 2013 is reproduced  below. The November, 2013 GISS temperature anomaly shows the critical global pattern that is important to recognize because it is fundamental to understanding why global warming is so dangerous. … 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 9/3/12

August 29, 2012
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R Script to Build Animation of Arctic Sea Ice Extent – Update 9/3/12

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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Comparison of UAH and RSS Time Series with Common Baseline

March 30, 2011
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Comparison of UAH and RSS Time Series with Common Baseline

In this post I set both UAH 5.4 and RSS 3.3 global temperature anomaly series to a common baseline period (1981-2010)  to compare them. Since both the UAH 5.4 and RSS 3.3 series are satellite based , they exhibit striking … Continue reading →

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Comparison of UAH and GISS Time Series with Common Baseline

March 22, 2011
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Comparison of UAH and GISS Time Series with Common Baseline

In this post I set both UAH and GISS global temperature anomaly series to a common baseline period (1981-2010)  and compare them. Even though the UAH series is satellite based and GISS series is station based, the series exhibit striking … Continue reading →

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UAH Temperature Anomalies Following Predictable Pattern

March 14, 2011
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UAH Temperature Anomalies Following Predictable Pattern

In this post I show one simple  and 2 multiple regression models to assess the role of time, El Nino – La Nina SSTA and volcanic activity (SATO) on UAH global temperature anomaly trends. The 3rd model provides a reasonable  … Continue reading →

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Comparison of GISS LOTAs During 5 El Nino – La Nina Cycles

March 10, 2011
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Comparison of GISS LOTAs During 5 El Nino – La Nina Cycles

In this post I compare GISS LOTAs during 5 El Nino – La Nina cycles (2010, 1998, 19883, 1973 and 1970). El Nino – La Nina Cycles In a previous post I showed the Nino 34 SSTA cycles for 2010, … Continue reading →

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September 2011 Arctic Sea Ice Extent Forecast

February 22, 2011
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September 2011 Arctic Sea Ice Extent Forecast

In this post, I use a quadratic regression model to forecast the  September, 2011  Arctic Sea Ice Extent. The model was developed with  1980 – 2010 data. Links to the R script, source data and  how-to article on polynomial regression … Continue reading →

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Assessing Climate Trends: Eyeball versus Regression

February 4, 2011
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Assessing Climate Trends: Eyeball versus Regression

In a previous post, I showed the Lower Stratospheric Temperature Anomaly (TLS) Trends (link).  A reader submitted the following comment: “The lower stratosphere temperature profile is essentially flat from ca. 1995 to the present. This approximately mirrors the temperature trend … Continue reading →

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Atmospheric Temperature Structure : 2 – Stratospheric Cooling

February 1, 2011
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Atmospheric Temperature Structure : 2 – Stratospheric Cooling

In this  post I review the temperature structure of the atmosphere and lower stratosphere temperature (TLS) anomaly trends. Temperature Structure in the Atmosphere In post 1 of this series, I developed this RClimate chart of temperature soundings which I update … Continue reading →

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