Re: Natural Phenomena
Posted: Tue Feb 28, 2023 6:00 pm
USS Shenandoah, 18 October 1879, afternoon watch, in squally weather at about 36 N 50 W (p. 52), encountered a water spout:
Transcribing yesterday's weather for tomorrow
https://www.oldweatherforum.org/
I think it's safe to say the seaweed they encountered was Sargassum. I dropped an 1891 map of the Sargasso Sea onto Google Earth and plotted the ship's position that day.Passing quantities of floating seaweed during this watch
Strangely, this research was shelved until the mid-1980s, when (in a bit of Old Weather serendipity) researchers aboard a tall ship began making annual plankton trawls from Woods Hole MA to St Croix VI, and were able to plot microplastic concentrations in the North Atlantic subtropical gyre.Increasing production of plastics, combined with present waste-disposal practices, will undoubtedly lead to increases in the concentration of these particles. Plastics could be a source of some of the polychlorinated biphenyls recently observed in oceanic organisms.
Observed large & brilliant meteor in the S.E.
https://s3.amazonaws.com/NARAprodstorag ... 7_0104.JPG2155 Saw a meteor bearing W by N moving rapidly through the sky lighting up the heavens around it brightly
https://s3.amazonaws.com/NARAprodstorag ... 7_0143.JPG0000-0400 Commences with clear sky veiled over so that but a small portion of stars were visible
Observed a circle around the moon, gradually increasing in diameter till 2 when its observed semidiameter was 22 23', the inner edge of the circle being especially well defined. After 2 the circle gradually disappeared and the sky clouded over with cirrs cumuli and cirrs strati.
https://s3.amazonaws.com/NARAprodstorag ... 28-036.JPGNoticed a very brilliant meteor traversing from the North to the South.
Noon location of the ship was Lat 20° 52' 00" N Long 31° 00' 00" W. At 2:45 AM the ship was roughly 50 knots to the East of the Noon position.A brilliant meteor appeared about 20° North East of Sirius. It travelled about 30° in a Southerly direction and disappeared. The duration of its illumination was about 2 seconds, the light being of a clear blue, so intense as to enable faces to be distinguished the length of the ship and giving the appearance of leaving a trail.