Tman Posted January 26, 2011 Share Posted January 26, 2011 I looked at a screen shot of tonight's weather and saw an example of the effect. The storm in the southern hemisphere is rotating clockwise and the northern hemisphere storm counter clockwise, just like it is supposed to do. Kinda cool. Link to comment Share on other sites More sharing options...
Sproggie Posted January 26, 2011 Share Posted January 26, 2011 You can also clearly see the intertropical convergence zone. Link to comment Share on other sites More sharing options...
LarryUK Posted January 26, 2011 Share Posted January 26, 2011 I'll have an egg sandwich please. Link to comment Share on other sites More sharing options...
TommyK Posted January 26, 2011 Share Posted January 26, 2011 GEEK ALERT! I too am fascinated by weather phenomena. Link to comment Share on other sites More sharing options...
Tman Posted January 26, 2011 Author Share Posted January 26, 2011 GEEK ALERT! I too am fascinated by weather phenomena. LOL! Major GEEK alert (or maybe eeek alert) (talking about myself) What's the intertropical convergence zone anyway, the equatorial region between the tropics of cancer and capricorn? Please don't do the "let me google it for you" thing! Link to comment Share on other sites More sharing options...
NeoConMan Posted January 26, 2011 Share Posted January 26, 2011 Lifelong weatherbug myself. Coriolois effect works for sink/bathtub drains too. Carry on... Link to comment Share on other sites More sharing options...
Tman Posted January 26, 2011 Author Share Posted January 26, 2011 Lifelong weatherbug myself. Coriolois effect works for sink/bathtub drains too. Carry on... I actually tried to demonstrate it to my son on a flight from Miami to South Africa by taking him to the plane bathroom and filling up the sink and draining it just before the equator, at the equator and then just south. How's that for a nerdy thing to do? I couldn't get it to work. Did work once on ground though. Link to comment Share on other sites More sharing options...
TommyK Posted January 27, 2011 Share Posted January 27, 2011 Lifelong weatherbug myself. Coriolois effect works for sink/bathtub drains too. Carry on... And I just thought that was gas. Link to comment Share on other sites More sharing options...
GIANTRobOT42O Posted January 27, 2011 Share Posted January 27, 2011 das cool Link to comment Share on other sites More sharing options...
Riverside Posted January 27, 2011 Share Posted January 27, 2011 Coriolois effect works for sink/bathtub drains too. There's more than a little controversy about that. The earth revolves so slowly that the Coriolis force is considered to be irrelevant in comparison to other factors such a the conservation of angular momentum in so far as how your basin drains. Here's a discussion: Bad Coriolis? Link to comment Share on other sites More sharing options...
rocketman Posted January 27, 2011 Share Posted January 27, 2011 Yep Riverside is right. When I was working at NASA we geeks actually calculated that friction plays more of a role than the Coriolis acceleration for drains. But for spacecraft one should never neglect the acceleration due to Coriolis. Link to comment Share on other sites More sharing options...
NeoConMan Posted January 27, 2011 Share Posted January 27, 2011 Can't neglect it for gyroscopic precession in navigational instruments either, eh? Never been south of the equator myself, so I'll defer to any experts... Link to comment Share on other sites More sharing options...
Tman Posted January 27, 2011 Author Share Posted January 27, 2011 Can't neglect it for gyroscopic precession in navigational instruments either, eh? Never been south of the equator myself, so I'll defer to any experts... Lucky to have been in the southern hemisphere a few times. Watched a toilet drain in New Zealand. There was a point of reference. Definitely clockwise. Link to comment Share on other sites More sharing options...
WahKeen Posted January 27, 2011 Share Posted January 27, 2011 Somebody's been watching their flushes one too many... Link to comment Share on other sites More sharing options...
jaxson50 Posted January 27, 2011 Share Posted January 27, 2011 Coriolois? use a condom damit...! Link to comment Share on other sites More sharing options...
WahKeen Posted January 27, 2011 Share Posted January 27, 2011 Coriolois? use a condom damit...! See? That's why I don't want a group hug. Link to comment Share on other sites More sharing options...
jaxson50 Posted January 27, 2011 Share Posted January 27, 2011 See? That's why I don't want a group hug. Group hug = group bug? Link to comment Share on other sites More sharing options...
WahKeen Posted January 27, 2011 Share Posted January 27, 2011 Group grab, group crab... <_< Link to comment Share on other sites More sharing options...
sjl200 Posted January 27, 2011 Share Posted January 27, 2011 I actually tried to demonstrate it to my son on a flight from Miami to South Africa by taking him to the plane bathroom and filling up the sink and draining it just before the equator, at the equator and then just south. How's that for a nerdy thing to do? I couldn't get it to work. Did work once on ground though. The plane is moving AND the earth is too, thats why it flunked the test.... Ground based; only the earth is moving.....most of the time Link to comment Share on other sites More sharing options...
Tman Posted January 27, 2011 Author Share Posted January 27, 2011 The plane is moving AND the earth is too, thats why it flunked the test.... Ground based; only the earth is moving.....most of the time I think you're right and I'm sure the other passengers thought I was a freak. What inspired the experiment was a story told to me by a friend (who has since said the story was embellished - read made up) where he went to Africa on the equator and saw a demo by a man who had a glass bowl with water containing beads. On the north side of the equator the water drained out CCW and on the south side CW and on the equator itself, it just drained straight down....So I thought hell, it can be demonstrated as long as I know exactly when we were over the equator which the pilot said he would announce. At least it helped pass some of the 15 hour flight time. Link to comment Share on other sites More sharing options...
Californiaman Posted January 27, 2011 Share Posted January 27, 2011 Just wanted to bath in the spirit of weather geakage. From NOAA: MODERATE TO STRONG LA NINA CONDITIONS CONTINUE IN THE TROPICAL PACIFIC OCEAN. SEA SURFACE TEMPERATURES (SSTS) IN THE EQUATORIAL PACIFIC OCEAN ARE BELOW AVERAGE FROM AROUND 160E TO THE SOUTH AMERICAN COAST, WITH SSTS BETWEEN 1 AND 3 DEGREES C BELOW NORMAL IN MOST AREAS. THIS VERY LARGE AREA OF ANOMALOUSLY COOL SSTS HAS SIGNIFICANT IMPACT ON THE LARGE SCALE ATMOSPHERIC CIRCULATION THROUGHOUT THE TROPICAL PACIFIC REGION, WHICH, IN TURN, IS EXPECTED TO CONSIDERABLY INFLUENCE THE MEAN ATMOSPHERIC CIRCULATION PATTERNS OVER NORTH AMERICA. SUB-SURFACE OCEAN TEMPERATURES ARE ALSO WELL BELOW AVERAGE IN THE EQUATORIAL EAST-CENTRAL PACIFIC TO OVER 200 METERS DEPTH, STRONGLY FAVORING A CONTINUATION OF LA NINA CONDITIONS INTO AT LEAST THE SPRING OF 2011. FORECASTS FROM MOST SST PREDICTION MODELS SUPPORT THIS CONCLUSION, WITH SST ANOMALIES PREDICTED TO GRADUALLY DIMINISH INTO THE EARLY SUMMER MONTHS. THE TEMPERATURE OUTLOOK FOR FMA 2011 REFLECTS TYPICAL LATE WINTER LA NINA CONDITIONS AND FAVORS BELOW AVERAGE TEMPERATURES OVER CENTRAL AND SOUTHERN ALASKA, ALONG THE NORTHERN TIER OF THE CONUS FROM WASHINGTON AND OREGON EASTWARD ACROSS THE NORTHERN ROCKIES TO THE UPPER GREAT LAKES REGION, AND ALONG THE ENTIRE WEST COAST. THE CHANCES FOR ABOVE AVERAGE MEAN TEMPERATURES ARE ENHANCED FROM THE INTERIOR SOUTHWEST AND SOUTHERN ROCKIES TO THE CENTRAL GULF COAST STATES. THE SEASONAL PRECIPITATION OUTLOOK FOR FMA 2011 FAVORS ABOVE-MEDIAN PRECIPITATION FROM THE INTERIOR PACIFIC NORTHWEST EASTWARD ACROSS THE NORTHERN ROCKIES INTO THE NORTHERN PLAINS. ABOVE MEDIAN PRECIPITATION AMOUNTS ARE ALSO FAVORED FROM PARTS OF THE CENTRAL MISSISSIPPI VALLEY AND TENNESSEE VALLEY NORTHEASTWARD THROUGH THE CENTRAL AND EASTERN GREAT LAKES AND THE INTERIOR NORTHEAST. THE CHANCES OF BELOW-MEDIAN PRECIPITATION AMOUNTS ARE ENHANCED FROM CENTRAL AND SOUTHERN CALIFORNIA EASTWARD THROUGH THE SOUTHERN HALF OF THE ROCKIES, THE CENTRAL PLAINS AND MUCH OF THE SOUTHERN PLAINS, CONTINUING EASTWARD ACROSS THE GULF COAST STATES AND SOUTHERN ATLANTIC COAST STATES. THE CHANCES OF BELOW-MEDIAN PRECIPITATION AMOUNTS ARE ALSO ENHANCED ACROSS SOUTHERN ALASKA, FROM KODIAK ISLAND TO THE NORTHERN PANHANDLE REGION, BASED ON LA NINA COMPOSITES AND CFS FORECASTS. THIS OVERALL PRECIPITATION PATTERN REFLECTS THE WEAKER THAN AVERAGE SOUTHERN UPPER LEVEL JET STREAM TOGETHER WITH AN ACTIVE NORTHERN JET THAT IS USUALLY OBSERVED IN LA NINA WINTERS. Link to comment Share on other sites More sharing options...
Tman Posted January 27, 2011 Author Share Posted January 27, 2011 Thanks Californiaman. I can never keep El nino and La nina straight. Quite a wild bunch of weather for both hemispheres lately. Link to comment Share on other sites More sharing options...
Tman Posted February 2, 2011 Author Share Posted February 2, 2011 The storm in the southern hemisphere has become cyclone yasi and is threatening already water logged Queensland: Sorry to revive this. I know it's rude to bring back your own thread but I thought enquiring minds wanted to know. Link to comment Share on other sites More sharing options...
The RandyMan Posted February 2, 2011 Share Posted February 2, 2011 Coriolis . . . isn't that the small protrusion and the big round dark spot?? Link to comment Share on other sites More sharing options...
Tman Posted February 2, 2011 Author Share Posted February 2, 2011 Coriolis . . . isn't that the small protrusion and the big round dark spot?? Exacatackely Link to comment Share on other sites More sharing options...
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