Instrumental Temperature Record Calculator

To run this software you will need a modern browser with good JavaScript capabilities, e.g. recent Chrome, Firefox. The software is provided with no warranty, explicit or implied, to the extent permitted by law. If your browser contains bugs it may crash your computer. Do not use it on mission critical systems.

You will need to download and uncompress at least one land station data set, and if desired an ocean data set.

Select the files and calculation type in the panel below and click 'calculate'. Using the table at the bottom of the page you can review, compare and save the results of up to 5 calculations. Click a graph to produce a downloadable version.

Status: Waiting for input
Land station data:CRUGISS
Sea surface data:  
Start date:18501880
Baseline period:61-9051-80
Station area of influence:box1200
Station types: Rural/Semi/Urban - GHCN onlyRSUR
Fill land→ocean
Fill ocean→land
Grid type:anglearea
Graph options
Moving average: months
Show:Global Land Ocean
Trend:From to  °C/decade