#biogeochemicalcycles — Public Fediverse posts

Sunrise in #Patagonia today and there is a very long plume of #highlatitudedust from dry lake Colhué Huapi.

The long plume indicates that activity started during nighttime and it's been active for several hours.

In color is the Aerosol Optical Depth , a proxy of concentration that it is used to derive particle matter amount (dust mass cannot be directly measured from space)

#paleoclimate #biogeochemicalcycles #dust

This morning in #Patagonia, #highlatitudedust activity from several dry lakes (including the large dry bed Colhué Huapi) . Long dust plumes.

The winds are such that dust initially moves east and then veers south making likely this dust will reach the #SouthernOcean and maybe #Antarctica.

This is a good example of dust activity in the middle of the winter (there is even snow not too far south , red circle)

#paleoclimate #biogeochemicalcycles

Back from a spring break vacation, I resume my postings with an image of #highlatitudedust cloud coming of mud flats in the southern tip of Argentina (54S).

Also, including surface wind forecasts which suggest transport of the air mass to the Antarctica Pla. While it does not look like a lot of dust in this case, it illustrates a likely mechanism of rapid dust transport to Antarctica.

#paleoclimate #biogeochemicalcycles

#highlatitudedust activity this morning in the southern tip of South America, laguna Blanca ,a dry salty pan, is emitting dust. Given the general pattern of wind direction, it looks likely that some of this dust will make it to the Peninsula.

#biogeochemicalcycles
#paleoclimate

Dust activity continuous into the night and given the winds (at least the surface ones) , it seems very likely that patagonian #highlatitudedust will reach the #WedellSea or Antartica Pla. by tomorrow

#paleoclimate
#biogeochemicalcycles

GOES Image from this morning of the SW Atlantic w/ large #highlatitudedust cloud (yellow) from yesterday's activity (red) with polar lows (red) and surface winds illustrates how #dust can get dragged straight south or into the SO depending the relative locations of the lows and the dust.
#paleoclimate
#biogeochemicalcycles

@zoom_earth

Intense convective activity in the lee-side of the Andes mountains. This is northern #Patagonia in the middle of the summer, with so much #dust in this intense convection, it is one of the mechanisms by which surface dust can reach the mid and upper #troposphere in the Southern Hemisphere.

The north edge of these clouds is south of the tip of southern Africa , so dust injected by them can potentially travel +6000km til reaching surface.

#biogeochemicalcycles #geochemistry
#paleoclimate

Intense convective activity in the lee-side of the Andes mountains. This is northern #Patagonia in the middle of the summer, with so much #dust in this intense convection, it is one of the mechanisms by which surface dust can reach the mid and upper #troposphere in the Southern Hemisphere.

The north edge of these clouds is south of the tip of southern Africa , so dust injected by them can potentially travel +6000km til reaching surface.

#biogeochemicalcycles #geochemistry
#paleoclimate

Something very useful IMHO to improve our understanding of atmospheric-ocean processes in the marine environment: robotic marine platforms.

A review

https://www.sciencedirect.com/science/article/pii/S0048969722068413

#oceanresearch #atmosphericchemistry
#biogeochemicalcycles
#marinegeochemistry