Congratulations to Alvin

Last month, the Deep Submergence Vessel (DSV) Alvin celebrated its 50th anniversary of service to oceanographic research.  As Humphris et al. (2014) note, Alvin is "the world's first deep-diving submarine and the only one dedicated to scientific research in the United States."  Named after geophysicist Allyn Vine, the half-century old submarine is returning to service after a major upgrade this year.  I recommend the article by Humphris et al. (2014) for readers interested in learning about the history of this unique vessel.

Reference

S. E. Humphris, C. R. German, and J. P. Hickey, 2014:  Fifty years of deep ocean exploration with the DSV Alvin.  Eos, Transactions, American Geophysical Union, 95 (22):  181-182.