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#atmosphericrivers

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DoomsdaysCW

A few weeks ago... Expect #BombCyclones and #AtmosphericRivers to become a common and unpredictable occurrence with #ClimateChange!

Europe's weekend #BombCyclone to rival B.C.’s intense storms

Dennis Mersereau
Fri, November 22, 2024

"Canada has been no stranger to weather bombs this season. British Columbia is in the midst of its second bomb cyclone in one week—another intense storm hitting the same areas affected by hundreds of thousands of power outages just days earlier.

"While B.C.’s second storm won’t grow as strong as the first, another storm out in the Atlantic Ocean could rival that first storm’s monstrous strength.

"Storm Bert is brewing in the northern Atlantic Ocean, and it’s got its eyes set on the British Isles heading into this weekend.

"The storm’s minimum central pressure is expected to drop a whopping 40-50+ mb in just 24 hours. This swift strengthening would more than double the criteria needed for bombogenesis, the process of rapid intensification that creates a bomb cyclone."

yahoo.com/news/europes-weekend

Yahoo News · Europe's weekend bomb cyclone to rival B.C.’s intense stormsPar Dennis Mersereau
#StormBert#ClimateCrisis#Bombogenesis
A répondu dans un fil de discussion
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HistoPol (#HP) 🏴 🇺🇸 🏴

@Nonilex

#SolutionsForClimateChange: #Agrivoltaics and #WaruWaru

The solutions for a big part of the planet have been with us since 1977 and 300 BCE: Agrivoltaics and Waru Waru, also called #sucacollos.
This is true in regions experiencing extreme rainfalls due to #AtmosphericRivers, like the US West Coast, or monsoons.

mastodon.social/@HistoPol/1099

MastodonHistoPol (#HP) 🥥 🌴 (@HistoPol@mastodon.social)Attached: 2 images Part 2: #SolutionsForClimateChange: #Agrivoltaics (1/8) Combining the new solar-panel-above fields method* with ancient raised-field #WaruWaru #farming #technology could facilitate #WaterConservation and management, raise yields, reduce #fertilizer concentration, and reduce #erosion. The solution to our current #drought problems in many areas might have been with us for 2,300 years at least, probably first developed by the #Tiahuanaco culture of the #Andean... *See previous toot (Part 1)
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legraLeGra

#AtmosphericRiver #ClimateChange

Okay… so first up, the experiment design… we looked at Present Day (you can see that in my paper / posts above), and then I used some old GISS simulations of the Last Glacial Maximum (21000 years ago-- COLD) and projections (year 2095 using RCP8.5) ... then did simplified + and - 3degC for thoroughness…

And then we begin the process of doing the high temporal resolution simulations to look at past/future #AtmosphericRivers

What happens to Atmospheric Rivers under different climates? Picture of Insolation change (Julian Day vs. Latitude) 21000 BP vs today. (Not so different, smaller boreal summer insolation +/- 8W/m2) Picture of the Laurentide Ice Sheet covering North America 21000 before present. Text saying (table has attendant mean SAT diff and CO2) Use GISS-E2.1 Simulations Atmosphere only Ocean conditions specified from coupled runs or at a fixed offset Re-run annual cycle 40 times Last Glacial Maximum 21 000 before present Altered topography Altered insolation Cold modern -3°C RCP8.5 Year 2095 Hot modern +3°C
Modern GISS-E2.1+MERRA2u/v+Hadl1.1 annual mean surface air temperature and precipitation. Not too bad versus observed. Please see Kelley et al 2020 for a full description https://dx.doi.org/10.1029/2019MS002025
GISS-E2.1 Last Glacial Maximum (ice sheet pic on right) of annual surface air temperature anomalies (its cold everywhere… esp over old ice sheets) and rain anomalies (its drier many places, but the Intertropical convergence zone has shifted south, so bands of more rain about the current ITCZ.)
GISS-E2.1 simulation of year 2095 for RCP8.5 Annual Surface air temperature anomalies (its hot everywhere, esp over land and at higher latitudes) and precipitation (wetter most places, especially tropics and ne maritime continent; drier in Africa and sw maritime continent and parts of S Am.
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legraLeGra

Finally my paper looking at #AtmosphericRivers is out!

"How River-like ARE Atmospheric Rivers?”

VERY-- they take moisture from 1000's km and 10deg equatorward than your average storm.

#NASA #CYGNSS - GPS array that looks at how choppy the ocean surface is to determine surface wind speed and heat fluxes compares well w simulations from the #NASAGISS climate model w include a tracer suite that identifies where moisture in the atmosphere originally evaporated from.

agupubs.onlinelibrary.wiley.co

Atmospheric Rivers Source Moisture from further away than climatological precipitation consistent in CYGNSS and GISS-E2.1 LeGrande et al 2024 https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2023GL105828
A répondu dans un fil de discussion
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Richard R Lee

Respectfully (block me if you like), but it is folly to promote the notion that CA (and the West at large) are out of #drought because of massive rainfalls from numerous #AtmosphericRivers. What happens to #BehavioralChange, #WaterConservation and further #runoff/#Aquifer development when you do this? You are simply giving a #GreenLight for #BAU. #BlackSwans are not a solution for multi-decade problems. #ScienceNotSilence. . @petergleick @InfoMgmtExec

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Pauline von Hellermann

2/3 It was exactly a year ago today that #ClimateDiary was launched!

🎉🎉HAPPY ANNIVERSARY! 🎉🎉

A massive, massive THANK YOU to all wonderful contributors here over the last year. Really!

No anniversary blog but just want to say here how incredible it has been for me. So much learning (#Phenology, #AtmosphericRivers, #ShfitingBaselineSyndrome, #ZombieFires and all); so mxuh exchange, dialogue and thinking; so much community

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Lukas VFN 🇪🇺

The Escalating Impact of #GlobalWarming on Atmospheric Rivers eos.org/research-spotlights/th paper: agupubs.onlinelibrary.wiley.co

"Ribbons of water vapor called #AtmosphericRivers wind through the troposphere, moving the planet’s #moisture from near the #equator toward the poles... Rising surface temperatures will continue to increase moisture content in the air, leading to a rise in atmospheric rivers overall"

air humidity map of the pacific ocean and North America showing a long filament stretching from Hawaii to California
#ClimateChange#ClimateCrisis#Climate
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Rosie Walters

"But [Atmospheric rivers] filled with enough moisture to rival flows at the mouth of the Mississippi – and often many times more – the strong systems that carry water across the Pacific also often cause the most destructive floods."
theguardian.com/science/2024/f

The Guardian · Atmospheric river storms are getting stronger, and deadlier. The race to understand them is onPar Gabrielle Canon
#AtmosphericRivers#Meteorology#ClimateCrisis
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legraLeGra

A labor of love (kinda hard analysis folks), my

#AtmosphericRivers research is in preprint
essopenarchive.org/doi/full/10

These #AtmosphericRiver storms move 80%++ of moisture and energy out of the tropics TODAY? What’ll they do in the future?

Where do these storms pull their rain?

Turns out-- the term “River" is no misnomer. These storms literally pull water in from 1000km++ further away -- and 10 degrees equator-ward — than other kinds of rain systems.

GIF
#Climate#ClimateChange#precipitation
ExplorerFlux en direct
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