Welcome back, xsacto! It has been too long. Also, thus ends the 2020 TXMX submissions (unless I pull pics off of his Flickr)
Photo: xsacto's Alfred E. Zappa, with the walking birds (chirp, chirp).

xsacto returns!

fnnch gets in on the COVID-19 reaction

>NEW< Anagard, Indonesia

>NEW< Seileise (Hamburg DE)

>NEW< Zelos (Hamburg DE)

Street Dr. Dude

Rolf and le Loup (just one)

Rude (just one)

Just Another Day on Aerosol Earth
(hi-res image here: NASA's Astronomy Photo of the Day)

Model Visualization Credit: NASA Earth Observatory, GEOS FP, Joshua Stevens

It was just another day on aerosol Earth. For August 23, 2018, the identification and distribution of aerosols in the Earth's atmosphere is shown in this dramatic, planet-wide digital visualization. Produced in real time, the Goddard Earth Observing System Forward Processing (GEOS FP) model relies on a combination of Earth-observing satellite and ground-based data to calculate the presence of types of aerosols, tiny solid particles and liquid droplets, as they circulate above the entire planet. This August 23rd model shows black carbon particles in red from combustion processes, like smoke from the fires in the United States and Canada, spreading across large stretches of North America and Africa. Sea salt aerosols are in blue, swirling above threatening typhoons near South Korea and Japan, and the hurricane looming near Hawaii. Dust shown in purple hues is blowing over African and Asian deserts. The location of cities and towns can be found from the concentrations of lights based on satellite image data of the Earth at night.

NASA's Earth Observatory has a page on aerosols, showing optical depth. They have a mov file showing optical depth from 2000 to 2020, with select and compare options. According to the site, "tiny solid and liquid particles suspended in the atmosphere are called aerosols. Windblown dust, sea salts, volcanic ash, smoke from wildfires, and pollution from factories are all examples of aerosols. Depending upon their size, type, and location, aerosols can either cool the surface, or warm it. They can help clouds to form, or they can inhibit cloud formation. And if inhaled, some aerosols can be harmful to people's health."

Submission thanks to: TXMX, Josiah, Tiago, LisaRuth, Larry S., Steven Bracco
Photo: Free Hugs Cancelled wheatpaste by Jeremy Novy

Surprise Quarantine Visit with TXMX uploads from Hamburg

COVID-related, from fnnch (the Castro, SF)

COVID-related, from Jeremy Novy (just one)

COVID-related, from San Francisco’s Mission District

COVID-related, from LA (just one)

COVID-related, from Estonia (just one)

COVID-related, from France (just one)

COVID-related, from India (just one)

COVID-related, from UK

COVID-related, from NYC

COVID-related, from Portland, OR (rent strike!)

COVID-related, from Austin, TX (rent strike!)