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Post by sigurdur on Feb 25, 2014 22:54:59 GMT
11:00 AM | The California Drought and the Role of the Pacific Ocean Discussion Overview Solar and oceanic cycles are the most important drivers of all weather and climate on our planet and the most important ocean of all is the Pacific. This large body of water covers about a third of the planet’s surface and is bigger than all of the Earth’s land masses combined. Both the Pacific and Atlantic Oceans go through sea surface temperature phases that are characterized as cool (negative) and warm (positive). While there are other important factors that contribute to drought conditions in the western U.S. (e.g., hours of sunshine, humidity levels), the given temperature phase of the Pacific Ocean has historically been found to be a major factor in precipitation trends just as it has contributed greatly to global temperature trends. Indeed, the on-going California drought appears to be a natural consequence of the current cool phase of the Pacific Ocean which typically produces an overall dry weather pattern in the western U.S. and, if history is any guide, it is likely to persist for years to come. thesiweather.com/category/climate-info/
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Post by Pooh on Feb 26, 2014 5:11:00 GMT
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Post by sigurdur on Feb 28, 2014 19:29:48 GMT
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Post by karlox on Mar 1, 2014 8:28:46 GMT
I recall back in 73-74 St. Gabriel mountains snow capped view with palm trees here and there...one of those rare clear winter days in LA area... Also warnings issued every-other-day due to pollutants and tropospheric ozone, which supposed shorter cross-country trainings -which I would gladly accept... good memories of a good time in a good land with a lot of good people... Hope the drought is over!
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Post by sigurdur on Mar 8, 2014 3:52:06 GMT
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Post by missouriboy on Mar 17, 2015 14:29:06 GMT
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Post by juancarnuba on Mar 17, 2015 19:07:59 GMT
I am trying to find the reference, but one of the early naval explorers on coming ashore close to what is now San Francisco considered the area uninhabitable desert and not worth exploring. Droughts always have been common in California especially during the cold phase of the PDO. Read Two years before the Mast. I can't remember it well. It was a long time ago when I read it, but I remember his description of SF Bay as being somewhat barren.
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Post by missouriboy on Mar 20, 2015 23:59:19 GMT
11:00 AM | The California Drought and the Role of the Pacific Ocean Discussion Overview Solar and oceanic cycles are the most important drivers of all weather and climate on our planet and the most important ocean of all is the Pacific. This large body of water covers about a third of the planet’s surface and is bigger than all of the Earth’s land masses combined. Both the Pacific and Atlantic Oceans go through sea surface temperature phases that are characterized as cool (negative) and warm (positive). While there are other important factors that contribute to drought conditions in the western U.S. (e.g., hours of sunshine, humidity levels), the given temperature phase of the Pacific Ocean has historically been found to be a major factor in precipitation trends just as it has contributed greatly to global temperature trends. Indeed, the on-going California drought appears to be a natural consequence of the current cool phase of the Pacific Ocean which typically produces an overall dry weather pattern in the western U.S. and, if history is any guide, it is likely to persist for years to come. thesiweather.com/category/climate-info/This seemed to be an interesting page if you haven't seen it. theresilientearth.com/?q=content/california-dreamin-wetter-timesA previous comparison with drought records from western North America showed that although most droughts occurred during periods of cool EEP SSTs, certain droughts were synchronous with warm EEP SSTs (El Niño-like) and thus required other explanations. The Kuroshio Extension SST reconstruction further supports this interpretation. For instance, the record shows predominantly warm Kuroshio Extension SSTs during MCA droughts from AD~ 854–1080 when EEP SSTs were warm, suggesting that some droughts could be driven more by NPDV than ENSO. Interestingly, the warmest Kuroshio Extension SSTs occurred during the LIA, from ~ 1,700 to 1,800, and the coolest occurred during the early twentieth century, a time in which SWNA was wetter than any other period of the past ~ 1,000 years.
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Post by sigurdur on Mar 21, 2015 1:48:20 GMT
There is a strong connection between the Atlantic and extended SW American droughts.
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Post by missouriboy on Apr 23, 2015 18:20:50 GMT
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Post by acidohm on Apr 23, 2015 20:15:09 GMT
Is he talking about climate or weather??? I only heard the term 'blob' used in reference to a large pool of warm water south of Alaska which was responsible for the RRR and a dry west america, cold east??
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Post by nautonnier on Apr 25, 2015 10:40:27 GMT
Joe Bastardi is still forecasting that California will be wetter than normal this year.
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zaphod
Level 3 Rank
Posts: 210
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Post by zaphod on Apr 25, 2015 12:43:27 GMT
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Post by sigurdur on Apr 27, 2015 3:16:55 GMT
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Post by acidohm on May 10, 2015 7:45:03 GMT
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