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#atmosphericrivers

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Enlite IAS

Why in the News? The mysterious Atmospheric Rivers—nicknamed "rivers in the sky"—are back in the spotlight!

These long, narrow bands of moisture-rich air can carry more water than the Amazon River and travel thousands of kilometers, shaping weather across continents. While they replenish water reservoirs, their increasing intensity and frequency—linked to climate change—can cause floods, landslides, and major infrastructure damage.

#EnliteIAS#AtmosphericRivers#WhyInTheNews
Public
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 stormsBy Dennis Mersereau
#StormBert#ClimateCrisis#Bombogenesis
Public
CelloMom On Cars

"#AtmosphericRivers – long, narrow bands of water vapor in the sky that bring heavy rain and storms – are shifting toward higher latitudes, and that’s changing weather patterns around the world.

One main reason for this shift is changes in sea surface temperatures in the eastern tropical Pacific.

Global warming is expected to increase the overall frequency and intensity of atmospheric rivers because a warmer atmosphere can hold more moisture."

theconversation.com/atmospheri

The ConversationAtmospheric rivers are shifting poleward, reshaping global weather patternsThese powerful ‘rivers in the sky’ provide a huge share of annual precipitation in many regions, including California. They can also melt sea ice, with global climate implications.
Replied in thread
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HistoPol (#HP) 🏴 🇺🇸 🏴

@Wileymiller

#USpol #CApol #Elections2024 #Water #ClimateCrisis

Of course, #TFG's comments are unfounded and pie in the sky.
And, OFC he doesn't know it, but in essence, he's actially right about the potential of reclaiming unused #rainfalls, in particular using #AtmosphericRivers weather conditions on the #WestCoast.
There are already some projects of limited scope, apart from #LA:

mastodon.social/@HistoPol/1099

MastodonHistoPol (#HP) 🏴 🇺🇸 🏴 (@HistoPol@mastodon.social)Attached: 1 image Part 3: #ClimateChange and #AtmosphericRivers (1/15) I did not want to provide another installment today, but I just came across this older boost of mine about special weather conditions on the #US #WestCoast, that leads to recurrent #FloodingEvents called Atmospheric Rivers (AR). https://mastodon.social/@UncensoredNews/109610717322432046 Now, I am not a #meterologist, but we know from Part 2 that the ancient Andean people had recurring over-abundant rainfall issues, too (El Niño events).
Public
News & Opinions

Heavy rains and floods have affected several parts of #India in recent weeks, killing scores of people and displacing thousands of others.

But #climate change has made #monsoon rains more erratic, with massive rainfall in a short span of time followed by prolonged periods of dryness.

"In East Asia there has been a significant increase in frequency of atmospheric rivers since 1940," says Vallejo-Bernal, a researcher.

#atmosphericrivers
bbc.com/news/articles/cv2g9x47

www.bbc.comThe ‘flying rivers’ causing devastating floods in IndiaScientists say huge invisible ribbons of water vapour in the sky are partly to be blamed for floods in India.
Replied in thread
Public *
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 monsoon regions in #Asia vor parts oft the #US.

mastodon.social/@HistoPol/1099

Revitalized irrigation channels in the Andean highlands, interspersed with raised-field patches growing some green crops. Source: https://www.abovetopsecret.com/forum/thread913772/pg1
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)
Continued thread
Public
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.
Public
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
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