Posts Tagged ‘ Global Warming ’

Do It Yourself Climate Trend Analysis

August 19, 2010
By
Do It Yourself Climate Trend Analysis

This post describes my consolidated global temperature anomaly CSV file that users can easily download to Excel or R to do their own trend analysis. Do It Yourself Global Temperature Anomaly  Trend Analysis As I wrote in my July 10, … Continue r...

Read more »

Time Series Regression of Temperature Anomaly Data: 1 – Don’t Use OLS

July 17, 2010
By
Time Series Regression of Temperature Anomaly Data: 1 – Don’t Use OLS

Phil Jones Statement (February , 2010) Phil  Jones of the  Climate Research Unit (CRU) responded to a series of questions from the BBC in early February, 2010 (link). Question B dealt with global warming trends in the 1995 – 2009 … Continue r...

Read more »

Tracking JAXA Arctic Sea Ice Extent Trends

June 3, 2010
By
Tracking JAXA Arctic Sea Ice Extent Trends

See my Arctic Update Page for daily updates on Arctic Sea Ice Extent Arctic Sea Ice Extent (SIE) follows an annual cycle, with maximum levels usually in March and minimum values in September.  Many analysts use day-of-year charts to compare … Co...

Read more »

Climate Oscillations and GISS Temperature Anomaly Trends

April 27, 2010
By
Climate Oscillations and GISS Temperature Anomaly Trends

In this post, I examine the combined impacts of Pacific Decadal Oscillation (PDO), Atlantic Multidecadal Oscillation (AMO) and El Nino – Southern Oscillation (ENSO)   on the long-term GISS Land and Ocean Temperature Anomaly (LOTA) trend. Introduction Professor Don Easterbrook of … Continue reading →

Read more »

Visualizing Arctic Sea Ice Extent Trends

April 6, 2010
By
Visualizing Arctic Sea Ice Extent Trends

Reader GH sent me an e-mail asking about a previous Arctic sea ice extent trend post (click). GH asked …. “Why is there such a difference between this type of representation and the chart at link ? What you’ve written … Continue reading →

Read more »

Le Monde rank test

April 4, 2010
By
Le Monde rank test

In the puzzle found in Le Monde of this weekend, the mathematical object behind the silly story is defined as a pseudo-Spearman rank correlation test statistic, where the difference between the ranks of the paired random variables and is in absolute value instead of being squared as in the Spearman rank test statistic. I don’t

Read more »

Meteorologist Misreads Arctic Sea Ice Extent Trends

March 24, 2010
By
Meteorologist Misreads Arctic Sea Ice Extent Trends

Meteorologist Joe Bastardi recently made a video asking “…how the heck does it get this warm and yet we are back to normal global sea ice extent in the Northern Hemisphere?”. In this post I show how Joe misread the … Continue reading →

Read more »

RClimate Script: Global Mean Sea Level Trend by Month

March 23, 2010
By
RClimate Script: Global Mean Sea Level Trend by Month

This RClimate Script lets users read a NetCDF file and plot the latest satellite altimetry based global mean sea level data  from 1993 to the latest completed month. The trend chart shows NOAA’s Laboratory for Satellite Altimetry altimeter global mean sea level with the seasonal signal removed and inverted barometer. I will add this chart

Read more »

RClimate Script: Arctic Sea Ice Extent Trend By Month

February 10, 2010
By
RClimate Script: Arctic Sea Ice Extent Trend By Month

This RClimate Script lets users retrieve and plot the latest data on Arctic Sea Ice Extent  trends by month from 1979 to latest completed month. The trend chart shows National Snow and Ice Data Center’s (NSIDC)  monthly Arctic Sea Ice extent data. Arctic Sea Ice Trend by Month I’ve discussed the Arctic sea ice extent

Read more »