Observational data from Heliasz (2012), Christensen et al. 2012,
and Finderup Nielsen et al. (2019), and that listed in the Supplementary
material as A. Michelsen, not published,
M. Johansson, not published, and D. Pascual, not published, will
be available in a repository ( https://dataguru.lu.se/ or
PANGAEA) by the time the article is accepted.
The output data is available in the supporting information,
figures, and/or tables, during peer review, and will be deposited to
( https://dataguru.lu.se/ or PANGAEA) by the time the
article is accepted.