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#Post#: 3720--------------------------------------------------
Re: Climate, Weather, and Climate Effects, 2020 and Beyond
By: guest5 Date: January 27, 2021, 1:51 pm
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Tornado injures 20 in Alabama, triple threat of storms move
across the country
HTML https://www.youtube.com/watch?v=t7EId_yHK6Y
72% of Americans say global warming is happening, says Yale poll
HTML https://www.youtube.com/watch?v=CaOgoHfguBw
#Post#: 3774--------------------------------------------------
Re: Climate, Weather, and Climate Effects, 2020 and Beyond
By: guest5 Date: January 28, 2021, 7:45 pm
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Largest Gravity Changes Ever Recorded: 2018 Kīlauea
Eruption
[quote]The largest gravity changes ever recorded: Continuous
gravity monitoring of the onset of Kīlauea’s 2018 eruption
Talk by Mike Poland–USGS Yellowstone Volcano Observatory
Scientist-in-Charge and former USGS Hawaiian Volcano Observatory
geophysicist.
Talk originally presented at the American Geophysical Union Fall
Meeting 2020. Eruptive activity at Kīlauea Volcano,
Hawaiʻi, in April–May 2018 occurred at sites that were well
monitored by continuous gravity. Draining of the lava lake from
the summit eruptive vent starting May 1, recorded by a
gravimeter on the vent rim, was accompanied by a drop of ~1300
microgals over 9 days. At the rim of the Puʻu
ʻŌʻō eruptive vent, 20 km [12 miles] down
the East Rift Zone from the summit, a gravity decrease of ~200
microgals over 8 minutes, followed by an increase of ~350
microgals over the subsequent 9 minutes, accompanied the
formation of an eruptive fissure on the flank of the cone on
April 30. About 45 minutes later, a decrease of ~1500 microgals
occurred over 2 hours as lava drained from the vent. These
gravity changes are the largest ever recorded anywhere in the
world.
The evacuation of the summit and Puʻu
ʻŌʻō eruptive vents provided opportunities
to image the vent geometries, which were used to model the mass
changes at the two locales. At the summit, joint modeling of
gravity, lava level, and vent geometry indicate a best-fitting
density of 1700 kilograms per cubic meter for the lava within
the vent. There is no record of lava level over time at
Puʻu ʻŌʻō, but the gravity data
combined with the vent geometry can be used to reconstruct that
process, suggesting that the lava had a density of ~1900
kilograms per cubic meter and that in 2 hours a bulk volume of
11 x 106 cubic meters drained from the cone. The pre-collapse
gravity decrease and subsequent increase at Puʻu
ʻŌʻō are more difficult to model given the
lack of other constraining data. We hypothesize that the gravity
fluctuation is due to the emplacement of an eruptive fissure on
the west side of the cone immediately prior to the collapse. The
gravity decrease represents the opening of a dry crack, and the
gravity increase is the subsequent filling of that crack with
magma that was denser than the spatter that makes up much of the
cone.
These data highlight the importance of continuous gravity for
monitoring volcanic activity. Not only do the data provide
important constraints on lava density, they can also be used to
estimate the rate and volume of lava accumulation or withdrawal
and can detect transient eruptive fissures, even in the absence
of other observations. Without such data, our knowledge of the
processes occurring at Puʻu ʻŌʻō during
the crucial opening hours of the eruptive sequence would be as
cloudy as the weather during that period.[/quote]
HTML https://www.youtube.com/watch?v=MbaUV36b0Qg
#Post#: 3781--------------------------------------------------
Re: Climate, Weather, and Climate Effects, 2020 and Beyond
By: guest5 Date: January 28, 2021, 8:59 pm
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New miracle in the desert! Giant lakes appear in the Saudi
desert!
HTML https://www.youtube.com/watch?v=Y1X0oUu9ecU
#Post#: 3885--------------------------------------------------
Re: Climate, Weather, and Climate Effects, 2020 and Beyond
By: guest5 Date: January 31, 2021, 9:40 pm
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What the Climate Crisis As a National Emergency Would
Mean[quote]
'We are in an emergency ... there’s every reason to believe we
have to move as if we’re in a war' — John Kerry supports
declaring a national emergency to address the climate crisis.
Here’s what that would mean.[/quote]
HTML https://www.youtube.com/watch?v=wYpY-ToUmEs
#Post#: 3930--------------------------------------------------
Re: Climate, Weather, and Climate Effects, 2020 and Beyond
By: guest5 Date: February 2, 2021, 10:57 pm
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Erosion and High Water Levels Are Threatening Great Lakes Homes
[quote]From catastrophic shoreline erosion to flooded towns,
here’s how record-high water levels are impacting Great Lakes
residents. [/quote]
HTML https://www.youtube.com/watch?v=6WVyYi7f00Y
#Post#: 4013--------------------------------------------------
Re: Climate, Weather, and Climate Effects, 2020 and Beyond
By: guest5 Date: February 6, 2021, 5:37 pm
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Vanishing of the Bees
[quote]This documentary takes a piercing investigative look at
the economic, political and ecological implications of the
worldwide disappearance of the honeybee. The film examines our
current agricultural landscape and celebrates the ancient and
sacred connection between man and the honeybee. The story
highlights the positive changes that have resulted due to the
tragic phenomenon known as "Colony Collapse Disorder." To
empower the audience, the documentary provides viewers with
tangible solutions they can apply to their everyday lives.
Vanishing of the Bees unfolds as a dramatic tale of science and
mystery, illuminating this extraordinary crisis and its greater
meaning about the relationship between humankind and Mother
Earth. The bees have a message - but will we listen?[/quote]
HTML https://www.youtube.com/watch?v=n4ddWBEHlpo
#Post#: 4041--------------------------------------------------
Re: Climate, Weather, and Climate Effects, 2020 and Beyond
By: guest5 Date: February 8, 2021, 7:25 pm
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Terrible floods sweeping Turkey, Izmir
HTML https://www.youtube.com/watch?v=EwI3VZCyxnU
#Post#: 4059--------------------------------------------------
Re: Climate, Weather, and Climate Effects, 2020 and Beyond
By: guest5 Date: February 8, 2021, 10:49 pm
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Global Ice Melt Hits Worst-Case Scenario
[quote]The planet lost more than 30 trillion tons of ice between
1994 and 2017 — global ice melt has now reached its 'worst-case
scenario.'[/quote]
HTML https://www.youtube.com/watch?v=ErNsxrVe49w
#Post#: 4090--------------------------------------------------
Re: Climate, Weather, and Climate Effects, 2020 and Beyond
By: guest5 Date: February 10, 2021, 6:04 pm
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Red Water Floods Indonesian Village
[quote]A red river flowed through an Indonesian village, causing
concern, but also a lot of buzz on social media. It happened in
the village of Jengott, where roads were flooded with
crimson-colored water. It didn’t seem to bother locals too much,
many of whom just walked and drove right through it. Some were
concerned it was a sign of the end of times, but government
officials pleaded with people not to engage in spreading
rumors.[/quote]
HTML https://www.youtube.com/watch?v=JF_63OWBhPg
#Post#: 4172--------------------------------------------------
Re: Climate, Weather, and Climate Effects, 2020 and Beyond
By: guest5 Date: February 12, 2021, 10:45 pm
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Crazy hail ! Major storms, tornado, flooding hits Turkey, Izmir
now
HTML https://www.youtube.com/watch?v=6WTy_NF-J34
Ice storm causes deadly crashes
[quote]In Fort Worth, Texas, at least six people were killed and
dozens were hospitalized after more than 100 vehicles were
involved in a chain-reaction crash with temperatures below
freezing.[/quote]
HTML https://www.youtube.com/watch?v=gwsf7VdoFHo
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