Santiago Gassó
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sangasso.bsky.social
Santiago Gassó
@sangasso.bsky.social

Research on atmospheric aerosols w/satellites, models & impacts such as atmos-ocean exchange processes (SOLAS!). Atmos. polarization radiative transfer, #physics overall. Sharing and commenting on papers and sat images of (my) interest #highlatitudedust .. more

Environmental science 44%
Engineering 19%
Pinned
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Below is an old self-introduction and description of what I have fun with (professionally speaking) .

The times are quite different than when I posted this, but well, we are still here, chugging along and hoping for the best.
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Hello all, there are a lot of new people here so I thought of re-introducing myself. I am a Earth Observation (EO) aerosol scientist contracted to work for the only agency that has put people on the moon.
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Interesting concepts here ....

@esipfed.bsky.social

Reposted by Santiago Gassó

Is ‘open science’ delivering benefits? Major study finds the results are unclear www.science.org/content/arti...
Is ‘open science’ delivering benefits? Major study finds proof is sparse
It’s hard to measure social and economic impacts of making papers and data free, researchers say
www.science.org

a good day for sun bathing?

My summary of the past year: not bad

If you want to do yours, check here:
www.madebyolof.com/bluesky-wrap...

Reposted by Santiago Gassó

#Etna update

#INGV has communicated that the effusive activity continues feeding several lava flows from an eruptive fissure located at ca. 2100 m a.s.l. The most advanced flow has now reached 1360 m a.s.l. down the Valle del Bove

📸 G. Tonzuso

very good!

sure, go ahead.
here is my public persona and I stand for what I say. I think it is safe to say that this is a sentiment shared by many in my network and probably more around here.

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A note for those in the industry and govt wanting to have more people entering STEM fields, reduce the load of what it takes to do science.

At this pace, one does not feel like encouraging younger generations to enter the field.
This report in Nature on the costs of competing for & administering scientific grants is shocking: "In other words, European taxpayers will have spent more on the funding process than on the funding itself, and the scientific ecosystem has been drained." www.nature.com/articles/d41... 🧪
Point of no returns: researchers are crossing a threshold in the fight for funding
With so little money to go round, the costs of competing for grants can exceed what the grants are worth. When that happens, nobody wins.
www.nature.com

🧪🌍🛰️🌬️
To keep in mind as this applies to any areas with 🔥activity . Just after fires in Patagonia days ago subsided, they became active dust sources. In AQ we focus on fires but the reality is that "remobilized ashes is dust activity. The difference from the view point of AQ is not relevant.

🧪🌍🛰️🌬️
To keep in mind as this applies to any areas with 🔥activity . Just after fires in Patagonia days ago subsided, they became active dust sources. In AQ we focus on fires but the reality is that "remobilized ashes is dust activity. The difference from the view point of AQ is not relevant.

deberia decir
"Auténtico, escrito y creado por un humano, 100%"
y tendria un precio premium solo por eso.

🛰️🌍🌬️
Starting the year with #highlatitudedust activity in northern Patagonia.

Unusual in this case is the fact that wind direction is from the E and SE, quite unusual for dust activity.

@tomgillpredicts.bsky.social @sheffielddust.bsky.social
I don't think you non-science people realize what it takes to get a grant funded by NIH. Started experiments in Sept 2021 to generate 3 new mouse mutants to model human disease. Prelim dara shows they have relevant disease phenotypes worthy of study. Need a small grant first to characterize /1

🛰️🌍🌬️
#highlatitudedust in #Alaska in time to say goodbye to the year.
This is a difficult image to interpret just using VIS channels, but there is dust (red arrow) and ocean foam plus blown snow mixed with blown sea bubble and marine aerosols (yellow).Dust is confirmed by low visibility in webcam.

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As I noted in a posting few weeks back, this is a place I used to go often. A place for meetings and inspiration.
I will miss it.
My old pal @eniiler.bsky.social with a killer story. What we save defines us as a culture—the archive is our memory and our future. And we’re throwing it away? Madness.

www.nytimes.com/2025/12/31/c...
NASA’s Largest Library Is Closing Amid Staff and Lab Cuts
www.nytimes.com
My old pal @eniiler.bsky.social with a killer story. What we save defines us as a culture—the archive is our memory and our future. And we’re throwing it away? Madness.

www.nytimes.com/2025/12/31/c...
NASA’s Largest Library Is Closing Amid Staff and Lab Cuts
www.nytimes.com

the area around Buenos Aires (Argentina,🇦🇷) is experiencing a heatwave and the demand of electricity triggered a power outage, fortunately during nighttime. Visible from space , by morning most of the power was restored.
but the heatwave continues, so we'll see.
#Argentina: A massive power outage hit #BuenosAires and surrounding suburbs late Tuesday, Dec 30. As a heatwave grips the region ahead of #NewYear’s Eve, NASA’s nighttime imagery reveals large areas plunged into darkness across the metro area. 🎄⚡️🌑

🛰 #NASA
🌍 worldview.earthdata.nasa.gov

Reposted by Santiago Gassó

#Argentina: A massive power outage hit #BuenosAires and surrounding suburbs late Tuesday, Dec 30. As a heatwave grips the region ahead of #NewYear’s Eve, NASA’s nighttime imagery reveals large areas plunged into darkness across the metro area. 🎄⚡️🌑

🛰 #NASA
🌍 worldview.earthdata.nasa.gov

Reposted by Santiago Gassó

Paper Highlight: Saiz-Lopez, A., Mahajan, A. S., Abbatt, et al. (2025). The influence of short-lived halogens on atmospheric chemistry and climate, Nature, 648, 289–299, doi.org/10.1038/s415..., 2025.

🛰️🌍🌬️🧊🌊

Almost in the last day of the year and with sources spread through 2000kms, large plumes of aerosols (in this case #highlatitudedust and #smoke) from Patagonia are drifting into the SW Atlantic today.

🛰️🌍💨🌋

Resuspended volcanic Ash in Umnak Is (Aleutians Arch)

Dec/29/2025

Because absorption is directly related to the volume of the droplet, it is possible to infer (through some complex modeling) the size of the droplet.
Why is this important?
Because if drops are too small, they do not precipitate thus no rain. Thus it is important to understand how this operates.

The same image but at different bands (or wavelengths) we get additional information. In this case, the red/orange image uses channels in the near-infrared (sensitive to the light absorption by droplets). This doesn't happen in the visible so from this fact we can infer more info. 2/n

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Mt Michael 🌋 (S. Atlantic) shows an example of volcanic emissions making a cloud brighter by the same process that human air pollution change cloud reflective properties.
This why it is of interest to study aerosols-cloud interactions.
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I totally agree with that aspect of the problem.

In fact, it degrades the quality of review and worsens the problem in that it gives less incentive to accept to do a review.

Near sunset image from GOES

The vast majority of modern science life is writing that it is mentally consuming because it is often technical (like a grant report) but not creative, thus distracting from actual science exploration. It does shortening really the time of tedious non-science activities.
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2) it streamlines and accelerates all kinds of writing (report, letters , review) either by grammar, easier checking of text length and shortening/lengthening , by providing first drafts of text and other miscellaneous tasks (and IMHO frankly essential for non-native English speakers).
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1) it accelerates coding either by providing code template and review code. Mundane coding task such as plotting data and i/o are just faster If properly used . Therefore more time to think about data instead of just cranking numbers.
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Well, I largely agree in the part related to creativity and breakthroughs.
But there are aspects of it that has made life better for modern scientists and are here to stay :
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