Parker A Case, Ph.D.
@parkeracase.bsky.social
Aerosol expert and atmospheric scientist at NASA.
Congress is proposing taxing solar and wind power while Americans regularly experience dangerous air quality conditions from wildfires.
(NOAA-20 VIIRS imagery from June 1st, 2025)
(NOAA-20 VIIRS imagery from June 1st, 2025)
June 30, 2025 at 8:02 PM
Congress is proposing taxing solar and wind power while Americans regularly experience dangerous air quality conditions from wildfires.
(NOAA-20 VIIRS imagery from June 1st, 2025)
(NOAA-20 VIIRS imagery from June 1st, 2025)
Despite everything we’re still moving forward at the NASA Atmospheric Chemistry and Dynamics Laboratory!
June 26, 2025 at 6:20 PM
Despite everything we’re still moving forward at the NASA Atmospheric Chemistry and Dynamics Laboratory!
Visiting a glacier in Iceland was an emotional reminder of what’s at stake. Everything is downstream of climate.
June 23, 2025 at 5:57 PM
Visiting a glacier in Iceland was an emotional reminder of what’s at stake. Everything is downstream of climate.
Lewotobi Laki Laki continues to erupt today. This image shows the ash fallout on Nov 5 from Landsat data—this thing has been erupting for 2+ weeks!
November 21, 2024 at 6:14 PM
Lewotobi Laki Laki continues to erupt today. This image shows the ash fallout on Nov 5 from Landsat data—this thing has been erupting for 2+ weeks!
I have spent the last decade thinking about stratospheric sulfate aerosols and let me tell you... we don't know enough to understand SAI geoengineering impacts, let alone start dumping sulfur up there
November 20, 2024 at 8:53 PM
I have spent the last decade thinking about stratospheric sulfate aerosols and let me tell you... we don't know enough to understand SAI geoengineering impacts, let alone start dumping sulfur up there
The Indian subcontinent usually stands out when scanning the satellite images and ground-based AERONET observations this time of year. The relatively new IIT Delhi AERONET site reported an extremely high AOD of 2.47 yesterday.
November 18, 2024 at 3:11 PM
The Indian subcontinent usually stands out when scanning the satellite images and ground-based AERONET observations this time of year. The relatively new IIT Delhi AERONET site reported an extremely high AOD of 2.47 yesterday.
On January 15th, 2022, the underwater Hunga volcano exploded in one of the largest eruptions we have observed with satellites. The atmospheric impact of this eruption were so large that it caused problems in our satellite measurements of ocean carbon! Really amazing result from Franz et al.
Anomalous trends in global ocean carbon concentrations following the 2022 eruptions of Hunga Tonga-Hunga Ha’apai - Communications Earth & Environment
A major anomaly in 2022 satellite-based ocean phytoplankton trends is not a biological response but rather a processing error due to stratospheric aerosols from the Hunga-Tonga eruptions, suggest obse...
www.nature.com
November 16, 2024 at 7:46 PM
On January 15th, 2022, the underwater Hunga volcano exploded in one of the largest eruptions we have observed with satellites. The atmospheric impact of this eruption were so large that it caused problems in our satellite measurements of ocean carbon! Really amazing result from Franz et al.
🧪
Lewotobi Laki-Laki continues to erupt in Indonesia. So far, observations indicate that very little ash or volcanic gas reached the stratosphere. This means that the volcano's impact on climate will be limited and regional.
November 15, 2024 at 3:03 PM
🧪
Lewotobi Laki-Laki continues to erupt in Indonesia. So far, observations indicate that very little ash or volcanic gas reached the stratosphere. This means that the volcano's impact on climate will be limited and regional.
November 15, 2024 at 3:02 PM
Lewotobi Laki-Laki continues to erupt in Indonesia. So far, observations indicate that very little ash or volcanic gas reached the stratosphere. This means that the volcano's impact on climate will be limited and regional.
Reposted by Parker A Case, Ph.D.
🧪⚒️ Now that video is here, I can share this wild situation at the 2023 Litli-Hrútur eruption!
Lava on the ground strongly heats air above it. The hot air rises, particularly quickly compared to ambient chilly air. In this case, wind conditions allowed the updraft to start rotating. Hence, volcanado!
Lava on the ground strongly heats air above it. The hot air rises, particularly quickly compared to ambient chilly air. In this case, wind conditions allowed the updraft to start rotating. Hence, volcanado!
November 14, 2024 at 11:49 PM
🧪⚒️ Now that video is here, I can share this wild situation at the 2023 Litli-Hrútur eruption!
Lava on the ground strongly heats air above it. The hot air rises, particularly quickly compared to ambient chilly air. In this case, wind conditions allowed the updraft to start rotating. Hence, volcanado!
Lava on the ground strongly heats air above it. The hot air rises, particularly quickly compared to ambient chilly air. In this case, wind conditions allowed the updraft to start rotating. Hence, volcanado!
Aerosols in the stratosphere—which partially control the ozone layer—are being significantly impacted by ablation of satellites reentering the atmosphere. This effect will only increase as we put more and more stuff in low earth orbit.
Metals from spacecraft reentry in stratospheric aerosol particles | PNAS
Large increases in the number of low earth orbit satellites are projected in the coming
decades [L. Schulz, K.-H. Glassmeier, Adv. Space Res. 67, 1...
doi.org
November 14, 2024 at 4:49 PM
Aerosols in the stratosphere—which partially control the ozone layer—are being significantly impacted by ablation of satellites reentering the atmosphere. This effect will only increase as we put more and more stuff in low earth orbit.
I’m an assistant research scientist at NASA, using modeling alongside observational data to understand the dynamics and impacts of aerosols in the stratosphere. I specialize in aerosols resulting from volcanic eruptions! 🌋
November 13, 2024 at 8:17 PM
I’m an assistant research scientist at NASA, using modeling alongside observational data to understand the dynamics and impacts of aerosols in the stratosphere. I specialize in aerosols resulting from volcanic eruptions! 🌋