Activity 5: Selection, test, and development of applications 

One of the most evident application activity to phenological data is the mapping of selected phases as an actual (1 year) or climatological (at least the mean of 10 years) presentation. This has  been done very often before on a national data base in  different countries, but not so often with cross-border data, which is one goal of the Action. The combination of data of national origin in a regional map often reveals systematic differences between the single national data sets at the borderlines. So, this may lead to an iterative feedback of observing rules and application methods.

 

Other applications will be trend analyses on long series of selected phenological phases and investigations on possible correlations with climate parameters such as the monthly mean temperature (see figure below), precipitation, or other ones to be identified.

 

Regional aspects and climate factors like geographical latitude and elevation above sea level have to be taken into account while comparing results from different stations.