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Using Naval Logbooks To Reconstruct Past Weather and Predict Future Climate

Lasrick writes: What a great idea: the Old Weather Project uses old logbooks to study the weather patterns of long ago, providing a trove of archival data to scientists who are trying to fill in the details of our knowledge about the atmosphere and the changing climate. "Pity the poor navigator who fell asleep on watch and failed to update his ship's logbook every four hours with details about its geographic position, time, date, wind direction, barometric readings, temperatures, ocean currents, and weather conditions." As Clive Wilkinson of the UK's National Maritime Museum adds, "Anything you read in a logbook, you can be sure that it is a true and faithful account."

The Old Weather Project uses citizen scientists to transcribe and digitize observations that were scrupulously recorded on a clockwork-like basis, and it is one of several that climate scientists are using to create "a three-dimensional computer simulation that will provide a continuous, century-and-a-half-long profile of the entire planet's climate over time" — the 20th Century Reanalysis Project. Data is checked and rechecked by three different people before entry into the database, and the logbook measurements are especially valuable because they were compiled at sea.

7 of 102 comments (clear)

  1. true and faithful account by fustakrakich · · Score: 5, Funny

    Faithful, yes, but if he didn't know how to navigate, how 'true' can they be? Eh, not to worry, chances are nobody would ever find those logs anyway, if you get my drift...

    --
    “He’s not deformed, he’s just drunk!”
    1. Re:true and faithful account by OzPeter · · Score: 4, Informative

      If you can use a sextant, you got it made.

      Only as long as you have an accurate chronometer that was correctly set. The sextant gives you North/South, but you need the chronometer for East/West

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  2. HA! by Holi · · Score: 5, Funny

    "Anything you read in a logbook, you can be sure that it is a true and faithful account."

    Says someone who never stood watch in the Navy.

    --
    Sorry, teleporters just kill you and then make a copy. A perfect, soul-less copy.
    1. Re:HA! by Havokmon · · Score: 4, Insightful

      "Anything you read in a logbook, you can be sure that it is a true and faithful account."

      Says someone who never stood watch in the Navy.

      Especially back before satellites and realtime communications Wanna pick up some 'native' chicks?

      Oh we're a week late because it was REALLY STORMY at sea. See? It says so in the log book.

      --
      "I can't give you a brain, so I'll give you a diploma" - The Great Oz (blatently stolen sig)
    2. Re:HA! by Chris+Mattern · · Score: 4, Informative

      Actually, he only needed to get to Timor in the rowboat, but that was impressive enough (it was a 47-day voyage. Of the 19 men, only one was lost, to hostile natives when they made a landfall at Tofua). Bligh was an excellent seaman. And not a bad guy, his reputation notwithstanding.

  3. US Navy still uses sextant and chronometer by perpenso · · Score: 5, Interesting

    I don't think navigation on the ocean was very forgiving before modern electronics. And I gather you still do it the old fashioned way as a back up, in case you ever find yourself without them.

    I saw a documentary on a US Navy Aircraft Carrier, it had a relevant incident. The carrier has GPS, LORAN, inertial navigation, etc. Yet every day a sailor steps outside the bridge with a sextant and takes readings on the horizon and sun. (does another sailor do so at night with the stars?). He then goes inside and using a WW2 manufactured mechanical chronometer calculates the position of the ship. When asked why the Navy still uses such ancient mechanical technology the sailor replied that this ship is a warship and is expected to be where it needs to be regardless of whether the fancy electronics is working or not.

  4. Re:Exxon Valdez by drinkypoo · · Score: 3

    I thought the problem with the E.V. was that it's hard to make intelligent decisions when you're drunk, regardless of how much accurate information you have.

    --
    "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"