The first edition, published in 2012, was based on satellite observations undertaken in the previous 20 years (1991-2011). The second edition is fully revised and updated by incorporating data gathered during the last five years (2011-2016). So the data now spans 25 years and also reflects any changes that have occurred during this latest period.
Besides that, the new edition will also be reformatted to incorporate a new feature: monthly windgrams for the most sailed ocean routes. Windgrams are a summary of wind direction amd strength derived from the individual windroses along a specific ocean route.
Cornell’s Ocean Atlas is:
60 monthly up-to-date pilot charts of all oceans of the world show:
Canary Islands and New York to the Lesser Antilles (Caribbean)69 detailed charts of the most common transoceanic routes including:
Comprehensive description of weather conditions in every ocean.
Sidebars with tactical suggestions have been added to the months when most passages are undertaken.
Comments and tips on tactics, as well as weather overviews for each ocean, were contributed by meteorologists and routers specializing in those oceanic areas, such as Lee Chesneau, Peter Gibbs (BBC), Herb Hilgenberg, Bob McDavitt (New Zealand Met Office) and John Neal.
From Jimmy Cornell:
“The main objective of Cornell’s Ocean Atlas is to make it possible to take advantage of prevailing winds and seek out whenever possible favourable conditions. Essentially, to try to always be in the right place at the right time, or, better still: Not to be in the wrong place at the wrong time!”