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<p><a NAME="Data"></a><font face="Verdana"><font color="#FF4428">Data</font></font>

<br><font face="Verdana"><font color="#000000"><font size=-1>The data set

described here provides a county-by-county summary of the mean climate

in the recent past (1961-1990). It should be noted that any single county

may contain substantial spatial variations of climate within it, and that

climate changes over time.</font></font></font>

<p><a NAME="Ownership"></a><font face="Verdana"><font color="#FF4428">Ownership</font></font>

<br><font face="Verdana"><font color="#000000"><font size=-1>These data

may be freely used, provided they are attributed to the following source

(available from <a href="http://www.tyndall.ac.uk/publications/working_papers/wp1_summary.shtml">www.tyndall.ac.uk</a>):</font></font></font>

<br><font face="Verdana"><font color="#000000"><font size=-1>Mitchell,

T. D., and Hulme, M., 2000: A country-by-country analysis of past and future

warming rates. Tyndall Centre Working Paper No. 1, November 2000, UEA,

Norwich, UK, 6pp.</font></font></font>

<p><a NAME="Disclaimer"></a><font face="Verdana"><font color="#FF4428">Disclaimer</font></font>

<br><font face="Verdana"><font color="#000000"><font size=-1>The counties

listed below are derived from the 1991 census regions. No political statement<cr>
is being made in selecting these spatial areas rather than any others.</font></font></font>

<p><a NAME="DataManip"></a><font face="Verdana"><font color="#FF4428">Data

Manipulation</font></font>

<br><font face="Verdana"><font color="#000000"><font size=-1>The page is

designed to allow the data to be copied into a text file, which can then

be opened in a spreadsheet and manipulated.</font></font></font>

<p><a NAME="Display"></a><font face="Verdana"><font color="#FF4428">Display</font></font>

<br><font face="Verdana"><font color="#000000"><font size=-1>If the table

is difficult to read because:</font></font></font>

<br><font face="Verdana"><font color="#000000"><font size=-1>...the font

size is too small, you could increase your browser font size.</font></font></font>

<br><font face="Verdana"><font color="#000000"><font size=-1>...the rows

extend over more than one line, you could enlarge the browser window, or

decrease your browser font size.</font></font></font>

<p><a NAME="Printing"></a><font face="Verdana"><font color="#FF4428">Printing</font></font>

<br><font face="Verdana"><font color="#000000"><font size=-1>Because of

the width of the table you will obtain a better printout if you set your

printer to landscape mode rather than portrait mode.</font></font></font>

<p><a NAME="Variables"></a><font face="Verdana"><font color="#FF4428">Variables

and Units</font></font>

<br><font color="#000000"><font size=-1><tt>T mean&nbsp; </tt><font face="Verdana">daily

mean temperature (degrees Celsius)</font></font></font>

<br><font color="#000000"><font size=-1><tt>T min&nbsp;&nbsp; </tt><font face="Verdana">daily

minimum temperature (degrees Celsius): Tmean - (TRange/2)</font></font></font>

<br><font color="#000000"><font size=-1><tt>T max&nbsp;&nbsp; </tt><font face="Verdana">daily

maximum temperature (degrees Celsius): Tmean + (TRange/2)</font></font></font>

<br><font color="#000000"><font size=-1><tt>T range </tt><font face="Verdana">daily

temperature range (degrees Celsius)</font></font></font>

<br><font color="#000000"><font size=-1><tt>precip&nbsp; </tt><font face="Verdana">precipitation

(millimetres per month)</font></font></font>

<br><font color="#000000"><font size=-1><tt>vapour&nbsp; </tt><font face="Verdana">vapour

pressure (hectaPascals)</font></font></font>

<br><font color="#000000"><font size=-1><tt>cloud&nbsp;&nbsp; </tt><font face="Verdana">cloud

cover (percentage)</font></font></font>

<p><a NAME="Time"></a><font face="Verdana"><font color="#FF4428">Time Periods</font></font>

<br><font face="Verdana"><font color="#000000"><font size=-1>Values are

given for the year (ann), each season (e.g. March-April-May = MAM), and

each month (e.g. January = Jan).</font></font></font>

<p><a NAME="DataProc"></a><font face="Verdana"><font color="#FF4428">Data

Processing</font></font>

<br><font face="Verdana"><font color="#000000"><font size=-1>The original

data took the form of a value for each month and each box on a 10 minute

latitude / longitude grid. We assigned each box to a single county. For

each county we calculated the mean of the values from its constituent

grid boxes for each month in turn. The seasonal and annual values are the

means of their constituent months.</font></font></font>

<p><a NAME="Original"></a><font face="Verdana"><font color="#FF4428">Original

Data</font></font>

<br><font face="Verdana"><font color="#000000"><font size=-1>The original

data is available from <a href="http://ipcc-ddc.cru.uea.ac.uk/">ipcc-ddc.cru.uea.ac.uk</a>.

It will be published shortly in a peer-reviewed scientific journal:</font></font></font>

<br><font face="Verdana"><font color="#000000"><font size=-1>New, M. G., Lister, D., Hulme, M., <cr>
and Makin, I., 2001: A high-resolution data set of  surface climate for <cr>
terrestrial land areas. Climate Research.</font></font></font>

<p><a NAME="Links"></a><font face="Verdana"><font color="#FF4428">Links</font></font>

<br><font face="Verdana"><font color="#000000"><font size=-1>email:

<a href="mailto:t.mitchell@uea.ac.uk">t.mitchell@uea.ac.uk</a></font></font></font>

<br><font face="Verdana"><font color="#000000"><font size=-1>web:

<a href="http://www.uea.ac.uk/~f709762/">www.uea.ac.uk/~f709762</a></font></font></font>

<br><font face="Verdana"><font color="#000000"><font size=-1>institution:

<a href="http://www.tyndall.ac.uk/">www.tyndall.ac.uk</a></font></font></font>

<br><font face="Verdana"><font color="#000000"><font size=-1>other counties:

<a href="counties.htm">counties.htm</a></font></font></font>

<p><font face="Verdana"><font color="#FF4428"><font size=+1>Dr. T. D. Mitchell</font></font></font>

<br><font face="Verdana"><font color="#FF4428">July 2001</font></font>

<br>

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