Temperature and salinity data resides in 1 book, 'Havsvattnets
Temperatur Och Salthal Uti Finlands Kustvatten' (C/dab G759h) written
in Swedish. The data contained in this book are ten-day means of
temperature and salinity in of the Baltic sea near the Finnish
coastline. Data are available in both tabular and graphic form.
These measurements are made for different depths for an individual
year ... and averaged over the period.
This book is part of the foreign meteorological data collection
held by the NOAA Central Library in Washington, DC. Information in
this collection dates back to the 18th century for daily, monthly,
seasonal, and annual tabular summaries, and the 19th century for
weather maps. These data are the result of foreign exchange
agreements, but the collection has not been updated since 1983.