 Around 5,000 whaling ship logs are kept in Southern New England due to the bustling whaling ports in New Bedford and Nantucket, which are home to the New Bedford Whaling Museum and Nantucket Whaling Museum respectively.Mean global temperature records begin around 1880, and many developing countries by the Indian Ocean only have reliable meteorology starting in the 1970s.Whaling logbooks hold daily accounts of vessel direction(s), landmarks, latitude/longitude, storm(s), precipitation, cloud direction, wind speed, wind direction, and temperature proxies.