EO Senior Satellite Scientist at NASA
R&D in atmospheric aerosol retrievals using optical sensors
#hyperspectral - #polarization, #highlatitudedust, & #volcanotracks
SOLAS Science Steering Committee. Interested in aerosol transport at high latitudes, impacts of volcanoes on clouds, marine aerosols and all Science Themes of SOLAS.
(he/him)
New commentary letter in Environmental Research Letters expressing views on new World Health Organization #airquality guidelines.
"As we show in the following paragraphs, because of atmospheric chemistry and meteorology, these new guideline values can be unattainably low for some pollutants, are too high for other pollutants, and may be jointly unattainable for a key pair of pollutants for some cities."
Yesterday in the S. Sandwich islands, nice #volcanotrack from Mt Michael seen in #sentinel2. VIS image shows solid cloud deck w/a brighter wake. NIR image shows a brighter wake .
Both images are consistent with the expected impact of volcanic aerosol onto clouds above.
About Science in the #GlobalSouth ,
Now paper under discussion in Atmospheric Chemistry and Physics
" Strengthening Research in the Global South: Atmospheric Science Opportunities in South America and Africa"
https://egusphere.copernicus.org/preprints/2023/egusphere-2023-2566/
Abstract. To tackle the pressing atmospheric science issues currently and in the future, a robust scientific community is necessary in all regions across the globe. Unfortunately, this does not yet exist. There are many geographical areas that are still underrepresented in the atmospheric science community, many of which are in the Global South. There are also larger gaps in the understanding of atmospheric composition, and processes through to impacts in these regions. In this opinion, we focus on two geographical areas in the Global South to discuss some common challenges and constraints, with a focus on our strengths in atmospheric science research. It is these strengths, we believe, that highlight the critical role of Global South researchers in the future of atmospheric science research.
*Incredible* @CopernicusEU image of the day showing the effects of #StormDaniel in #Libya
https://www.copernicus.eu/en/media/image-day-gallery/storm-daniel-causes-flooding-libya
Credit: European Union, Copernicus Sentinel-2 imagery
Ongoing drought in southern south America turns aerosols from fires and dry lakes into tracers of wind direction.
A cold front advances northbound and moist and warm air from Andean Amazons meet in northern #Argentina . Each airmass can be easily spotted by looking at the direction of #smoke from fires and of #dust plumes from the drying lake Mar Chiquita.
Just like drops of ink water, the aerosols move with 5he wind After all both wind and water are fluids.
Ongoing drought in southern south America turns aerosols from fires and dry lakes into tracers of wind direction.
A cold front advances northbound and moist and warm air from Andean Amazons meet in northern #Argentina . Each airmass can be easily spotted by looking at the direction of #smoke from fires and of #dust plumes from the drying lake Mar Chiquita.
Just like drops of ink water, the aerosols move with 5he wind After all both wind and water are fluids.
A major highway pileup yesterday in #Argentina due to poor visibility from #dust lifted from nearby crop fields. There was so much that it was easily seen from space.
The news :
https://www.zyri.net/2023/09/11/a-fierce-wind-storm-caused-a-multiple-crash-in-rosario/
This area is Argentina's bread basket with major industrial agricultural activity . This mixed with an ongoing drought makes these types of events more frequent as of late.
The wind and land storm that occurred in the Santa Fe-Córdoba region caused an impressive multiple crash on the Rosario-Córdoba highway, near San Jerónimo Sud. The serious accident occurred around 2:40 p.m. this Monday, in the kilometer 330 of the highway, on both hands. A woman died and dozens of injured people were treated at […]
I found these are really neat portals for browsing at weather data at different spatial scales
https://climatereanalyzer.org/
https://crt-climate-explorer.nemac.org/
this looks like a work in progress..
https://www.nnvl.noaa.gov/view/
and this one is like a class project but it is very good!
Here, 2 examples of what it is known as aerosol-cloud interactions.
Low level volcanic activity in Mt Saunders in the S. Atlantic provide cloud seeds (i.e. #aerosols or gases that form cloud droplets).
When these are ingested into a cloud, it can become brighter (because it has more droplets and they reflect more radiation) or it could dissipate via rain and entrainment of dry air.
Examples like these are really useful to tease out what drives a cloud's evolution (meteorology or aerosols)
Ruth Mottram
NASA picture bot