Monthly Archives: April 2012

How You Can Confirm the SST Anomalies for the Indian and Pacific Ocean Subset have NOT WARMED for 17 Years

Posted on April 30, 2012 by Bob Tisdale

One of the regular visitors to my blog from Australia (Neville) has asked how readers can confirm the key result of yesterday’s post here at Climate Observations, which was also cross posted at WattsUpWithThat. That post showed that satellite-based sea … Continue reading →

Posted in KNMI Climate Explorer, Model-Data Comparison SST | 4 Comments

What Do Observed Sea Surface Temperature Anomalies and Climate Models Have In Common Over The Past 17 Years?

Posted on April 29, 2012 by Bob Tisdale

One word answer: NOTHING!!!! OVERVIEW In this post, we’ll compare satellite-based sea surface temperature anomalies (Reynolds OI.v2) for the past 17 years to the multi-model ensemble mean of the climate models that were prepared for the 2007 4th Assessment Report … Continue reading →

Posted in Model-Data Comparison SST | 14 Comments

A Closer Look at CRUTEM4 Since 1975

Posted on April 28, 2012 by Bob Tisdale

With the recent release of the CRUTEM4 data came the expected two-sided discussion (argument) about the changes from the earlier version of the dataset, CRUTEM3. One side claimed the adjustments were needed, while the other side protested the increase in … Continue reading →

Posted in LSAT | 1 Comment

Polar Amplification: Observations versus IPCC Climate Models

Posted on April 24, 2012 by Bob Tisdale

We’ve illustrated and discussed polar amplification in a few posts in the past. See here and here. Wikipedia has a short blurb about it: Polar amplification is the greater temperature increases in the Arctic compared to the earth as a … Continue reading →

Posted in Climate Model Problems, Model-Data LOST, Polar Amplification | 32 Comments

Mid-April 2012 SST Anomaly Update

Posted on April 24, 2012 by Bob Tisdale

GLOBAL The weekly global sea surface temperature anomalies are wiggling their way upwards in response to ebbing of the La Niña, and they are now at about 0.12 deg C. Global SST Anomalies – Short-Term

Posted in SST Update | 9 Comments

IPCC Models vs Observations – Land Surface Temperature Anomalies for the Last 30 Years on a Regional Basis

Posted on April 23, 2012 by Bob Tisdale

In two posts about a year ago and more recently in my book, we compared the satellite-based sea surface temperature anomalies and CMIP3-based climate model simulations on an ocean-basin basis. Refer to Satellite-Era Sea Surface Temperature Anomalies Versus IPCC Hindcasts/Projections … Continue reading →

Posted in Model-Data Comparison LSAT | 16 Comments

Missing gif Animations

Posted on April 19, 2012 by Bob Tisdale

The Image Hosting site I had used for large .gif animations has folded its tent or dropped the hosting of large files. One way or the other, the following gif animations are no longer playing in the posts where they … Continue reading →

Posted in Uncategorized | Leave a comment

And The Current Winner Is…

Posted on April 17, 2012 by Bob Tisdale

The Met Office released its global HadCRUT4 land plus sea surface DATA recently. The HadCRUT4 dataset was first presented in the Morice et al (2012) paper Quantifying uncertainties in global and regional temperature change using an ensemble of observational estimates: The … Continue reading →

Posted in LOST Update | 1 Comment

Preview of HadCRUT4 Global Surface Temperature Anomaly Data

Posted on April 17, 2012 by Bob Tisdale

UPDATE:  I just discovered that the HADCRUT4 data has been released.  I’ll be posting on it shortly. See here. HHHHHHHHHHHHHHHHHHHHHHHH A weighted average of the two new global land surface (CruTEM4) and sea surface (HADSST3) temperature anomaly datasets was used … Continue reading →

Posted in LOST Update | 2 Comments

The Impact of GISS Replacing Sea Surface Temperature Data With Land Surface Temperature Data

Posted on April 13, 2012 by Bob Tisdale

This post is a continuation of the May 31, 2010 post titled GISS Deletes Arctic And Southern Ocean Sea Surface Temperature Data. Refer also to the comments on the thread of the cross post at WattsUpWithThat. Between publishing that post … Continue reading →

Posted in GISS, LOST Update | 89 Comments