Description:
The Cost726 Ozone Climatology (COC) consists of two large data files and a easy to use program that extracts a time series for a certain location from the data base.
The files you have to download are listed below.
The size of the data files is 260 Mb + 128 Mb.
Put all files in the same directory.
The program only needs latitude and longitude (decimal, point) divided by a comma as input (e.g. 52.21,15.33) and "enter".
It may need a few minutes to receive the result.
Time series, daily means for the period 01.01.1950 to 31.12.2004 is stored in ASCII-format as "timeseries.txt" in the same directory.
Please note that this file is overwritten each time you run the program. So do not forget to rename the output file.
The JGR paper (see below) describes the method used for the COC preparation.

Usage
Non-commercial:
 This Climatology is free for non-comercial use.
 In any application aknowledgement has to be given to the Action COST726 (www.cost726.org)
 and to Dr. J.W.Krzyscin
 In case of publication additional reference 1 (see below) has to be citated.
In any other case:
 you have to contact the developer: J.W.Krzyscin

Download:
Either from:
  http://tau.igf.edu.pl/~jkrzys/
Or directly from this page using the right mouse button and using "Save download/target as...".
 Executable program (PC): cost_ozone_time_series.exe (478kb)
 Source code: cost_ozone_time_series.for (6kb))
 Data file 1: cost726_new.txt (260Mb)
 Data file 2: niwa_new.txt (128Mb)

References:
 1. Model Description and Validation:
  Krzyscin, J.W.,
  Statistical Reconstruction of Daily Total Ozone over Europe 1950 to 2004,
  Journal of Geophysical Research, Vol.113, D07112, doi: 10.1029/2007JD008881, 2008
 2. Trend Analysis:
  J. W. Krzyscin and J. L. Borkowski
  Variability of the total ozone trend over Europe for the period 1950-2004 derived from reconstructed data
  Atmospheric Chemistry and Physics Discussion (ACPD), 8, 47-69, 2008.