We can divide the land climate in two categories: the continental climate with warm summers and cold winters, and the maritime climate with cool summers and mild winters. This is a report of a project where we have analyzed temperature data 1900-2010 from many (thousand) meteorological stations across the world, to figure out the difference between maritime and continental stations.
We have found that we can divide the stations into two types: The ocean air affected (OAA) areas and the ocean air sheltered (OAS) areas. The latter are found in valleys which are sheltered from wind from the oceans as shown in Figure 1 as blue areas (Click below link).
Since OAA and OAS areas often are located nearby, we have not included OAA/OAS border
areas. We have also excluded areas which behave as OAS at certain wind directions, and like
OAA stations at other directions. We have analyzed 16 geographical areas, and the result for 10 of those are presented in our first publication (Lansner and Pedersen 2018). The rest will be published later (Lansner and Pedersen, in progress).
Continue reading: Temperature at the Coast and Inlands by Frank Lansner.