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Le #Chacaltaya c'est une "petite" montagne au dessus de #LaPaz, de presque 5400 mètres quand même. Le Club Andin de La Paz organise un minibus pour y monter, il y a une route qui va jusqu'au refuge qui est à 5300 mètres, là où ils louaient des ski à l'époque ou un téléski desservait la piste de ski la plus haute du monde.
Le téléski n'était ouvert qu'en été du fait des conditions dantesques l'hiver, mais ça a fermé à la fin du XXème siècle pour cause de disparition du glacier.
in the #arXiv
A new air shower array in the Southern Hemisphere looking for the origins of cosmic rays: the ALPACA experiment
by Marcos Anzorena and co-authors
https://arxiv.org/abs/2412.14550
📷 The ALPAQUITA Air Shower prototype array located at the Chacaltaya plateau in Bolivia
#CosmicRays #Physics #Bolivia #Chacaltaya #Astrophysics #Astrodon #science #STEM #ALPACA #ALPAQUITA
The Tibet AS$γ$ experiment successfully detected sub-PeV $γ$-rays from the Crab nebula using a Surface Array and underground muon detector. Considering this, we are building in Bolivia a new experiment to explore the Southern Hemisphere, looking for the origins of cosmic rays in our Galaxy. The name of this project is Andes Large area PArticle detector for Cosmic ray physics and Astronomy (ALPACA). A prototype array called ALPAQUITA, with $1/4$ the total area of the full ALPACA, started observations in September $2022$. In this paper we introduce the status of ALPAQUITA and the plans to extend the array. We also report the results of the observation of the moon shadow in cosmic rays.
Samuel Mendoza creció en la estación de esquí en Chacaltaya, Bolivia, rodeado de nieve y un viento helado. Era feliz y parecía que todo lo que daba vida a ese glaciar sería eterno. Pero a finales de los años 90, apareció una amenaza casi imposible de combatir.
Many of us still have no idea the damage we have done to the world through climate change.
Look up #Chacaltaya Ski Resort located in the La Paz area of #Bolivia. It was the #highest ski resort in the world located #higher than base camp at #Everest. The 18000 yr old #glacier there not only gave skiers a wonderful slope it also helped the town below.
Today there is NO MORE GLACIER. It's #GONE. The town below now rations water. This was a year round glacier. We've #warmed the #earth THIS much!
TROPOS
guf65
Daniel Pomarède
@patadeperro 🐈⬛
RealSolo
lainee42