Satellite map view showing a jagged geographic zone outlined in bright yellow, with a parallel green border surrounding it over a textured red and tan landscape.

Scientists from the Centre for Climate Research (Institute of Physics University of Tartu) have discovered anthropogenic glaciation events of supercooled liquid water clouds downwind of industrial air pollution sources. This collection serves as a metadata record for glaciation events and makes available the data and software necessary to replicate and extend the research.

This collection includes metadata and software to sample data from the MODIS instrument onboard the polar-orbiting Terra satellite, from the ABI instrument onboard the geostationary GOES satellite, and from ground-based precipitation radars in Canada. In addition, meteorological conditions characteristic to glaciation events are given based on ERA5 atmospheric reanalysis, and the aerosol dispersion plumes are given based on HYSPLIT.

Velle Toll (University of Tartu) led the research team. Hannes Keernik, Jorma Rahu, Heido Trofimov, and Piia Post (all from the University of Tartu) collected data and developed software. Peter Manshausen (University of Oxford) and Matthew Christensen (Pacific Northwest National Laboratory) performed HYSPLIT simulations. Daniel Michelson, Norman Donaldson, and Emma Hung (all from Environment and Climate Change Canada) provided ground-based precipitation radar data from Canada and supervised the analysis of radar data.

Contact:

Velle Toll velle.toll@ut.ee

Hannes Keernik hannes.keernik@ut.ee

This research is funded by the Estonian Research Council grant PRG1726.

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1 to 7 of 7 Results
Python code for processing MODIS satellite data to study anthropogenic glaciation of supercooled liquid-water clouds
Oct 31, 2024
Keernik, Hannes; Toll, Velle, 2024, "Python code for processing MODIS satellite data to study anthropogenic glaciation of supercooled liquid-water clouds", https://doi.org/10.23673/RE-488, DATADOI, V1
The given python code is used to analyse anthropogenic glaciation of supercooled liquid-water clouds downwind of strong industrial point sources of air pollution using Terra MODIS satellite data.
Hole punch clouds near Moscow Domodedovo airport
Oct 31, 2024
Keernik, Hannes; Toll, Velle, 2024, "Hole punch clouds near Moscow Domodedovo airport", https://doi.org/10.23673/RE-487, DATADOI, V1
We used Terra MODIS satellite data to study hole punch clouds near Moscow Domodedovo airport (55.408611 N 37.906111 E).
GOES ABI satellite data to study anthropogenic glaciation of supercooled liquid-water clouds downwind of industrial air pollution hot spots
Oct 31, 2024
Rahu, Jorma; Post, Piia; Toll, Velle, 2024, "GOES ABI satellite data to study anthropogenic glaciation of supercooled liquid-water clouds downwind of industrial air pollution hot spots", https://doi.org/10.23673/RE-489, DATADOI, V1
The dataset contains geographical locations and datetimes of occurrence for the events of anthropogenic glaciation of supercooled liquid-water clouds identified in GOES ABI satellite data. Moreover, Python code used for processing GOES ABI satellite data and creating animations from GOES ABI satellite data for glaciation events are given together w...
Meteorological conditions characteristic of anthropogenic glaciation of supercooled liquid-water clouds and of anthropogenic CCN perturbations on clouds
Oct 31, 2024
Keernik, Hannes; Rahu, Jorma; Toll, Velle, 2024, "Meteorological conditions characteristic of anthropogenic glaciation of supercooled liquid-water clouds and of anthropogenic CCN perturbations on clouds", https://doi.org/10.23673/RE-486, DATADOI, V1
We used ERA5 atmospheric reanalysis data to characterise the meteorological conditions characteristic of anthropogenic glaciation of supercooled liquid-water clouds and of cloud perturbations induced by anthropogenic cloud condensation nuclei.
MODIS and HYSPLIT data to study anthropogenic glaciation of supercooled liquid-water clouds
Oct 31, 2024
Keernik, Hannes; Trofimov, Heido; Manshausen, Peter; Christensen, Matthew; Rahu, Jorma; Toll, Velle, 2024, "MODIS and HYSPLIT data to study anthropogenic glaciation of supercooled liquid-water clouds", https://doi.org/10.23673/RE-485, DATADOI, V1
We used MODIS (https://modis-images.gsfc.nasa.gov/_docs/C6MOD06OPUserGuide.pdf) and HYSPLIT (https://www.ready.noaa.gov/HYSPLIT.php) data to study the anthropogenic glaciation of supercooled liquid-water clouds. We used MODIS data to identify glaciation events and compare the properties of glaciation-affected areas to the nearby unaffected areas. W...
Ground-based precipitation radar data to study glaciation of supercooled liquid-water clouds downwind of anthropogenic air pollution hot spots
Oct 31, 2024
Rahu, Jorma; Voormansik, Tanel; Michelson, Daniel; Hung, Emma; Donaldson, Norman; Toll, Velle, 2024, "Ground-based precipitation radar data to study glaciation of supercooled liquid-water clouds downwind of anthropogenic air pollution hot spots", https://doi.org/10.23673/RE-490, DATADOI, V1
Ground-based precipitation radar datasets (two sites in Canada) were used to study the glaciation of supercooled liquid-water clouds downwind anthropogenic air pollution sources. Weather radar data is from two radar sites: 1) Bethune, Saskatchewan, Canada; (lat/lon: 50.57123, -105.18285); dual-polarisation data since 09.08.2019 2) Landrienne, Québe...
Air pollution sources leading to anthropogenic glaciation of supercooled liquid-water clouds
Oct 21, 2024
Toll, Velle; Keernik, Hannes; Rahu, Jorma, 2024, "Air pollution sources leading to anthropogenic glaciation of supercooled liquid-water clouds", https://doi.org/10.23673/RE-480, DATADOI, V1
This dataset lists the air pollution sources leading to anthropogenic glaciation of supercooled liquid-water clouds. The glaciation events were identified in Terra MODIS data.
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