I'm interested in the long-term (~past 100 years) variability in the convective and stratiform precipitation (or alternatively convective - stratiform cloud) over certain European regions. Monthly or annual resolution should be sufficient for the current research problem.
Thanks for any advice in advance.
Zoltan
This is a rather difficult question and the answers are certainly not many.
However, you can start your quest from the following web site
http://climserv.ipsl.polytechnique.fr/gewexca/
It is the web site of the GEWEX GDAP Cloud Assessment exercise and I believe it could help you somehow. It is certainly a start and from there you probably can find what you are looking for.
Moreover, a very famous and controlled dataset is the one from the International Cloud Climatology Project (ISCCP), but it is probably shorter than you need:
http://isccp.giss.nasa.gov
Hi Zoltan,
additionally, you could use synop reports. There is an interesting study from Rulfová and Kyselý (Rulfová, Zuzana ; Kyselý, Jan, 2013: Disaggregating convective and stratiform precipitation from station weather data, Atmospheric Research, 134, pp. 100-115). Problem will be that synop reports (at least in the needed temporal resolution) do not cover 100 years.
Another option would be to apply reanalysis data (see reanalysis.org), which often include the partitioning in convective and stratiform precipitation (from the model point of view, be aware that this is quite different to e.g. the point of view of the radar community...). There are some reanalysis datasets covering the time period you need. Problem could be that e.g. no precipitation data are assimilated and model is at least for the pre-satellite era not well constrained. Furthermore, I am not sure if relevant reanalysis datasets provide convective and stratiform precipitation as output variables....
So, it remains a challenging task ...
Cheers,
Klemens
I don't know if it helps as I'm not aware of the data policy of the meteorological services in the countries that you study (it's different from one country to the other) but stratiform / convective precipitation can be derived from ground-based radar measurement (Steiner et al., 1995). It can be interesting to explore this possibility, although you won't have 100 years (no more than ~30 years) and it can involve some heavy data processing if you have to work with the raw data.
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