Abstract. Shallow clouds covering vast areas of the world's middle- and high-latitude oceans play a key role in dampening global temperature rise associated with CO2. These clouds, which contain both ice supercooled water, respond to warming world by transitioning state more liquid water greater albedo, resulting negative “cloud-phase” climate feedback component. Here we argue that magnitude cl...

Scots pine (Pinus sylvestris) is the most widespread species in world. It grows largest forest system northern hemisphere and, together with birch trees, occupies a major part of boreal forests. Recently, trees have been discovered as important emission sources terrestrial ice-nucleating macromolecules (INMs) coming from pollen, bark, leaves, petioles, branches, and stem surfaces. known that po...

This work presents measurements of bioaerosol diversity and ice nucleating particle (INP) concentration in total suspended particulate matter along a transect the North-Western Himalayan Region. Drop freezing assay was used to measure INP spectra. Flow cytometry analysis performed examine abundance autofluorescent entities samples. The DNA sequences were analyze relative abundance, diversity, p...

Abstract. Mixed-phase clouds (MPCs) can have a net warming or cooling radiative effect on Earth's climate influenced by the phase and concentration of cloud particles. They received considerable attention due to high spatial coverage occurrence frequency in Arctic. To initiate ice formation MPCs at temperatures above ?38 ?C, ice-nucleating particles (INPs) are required, which therefore importan...

Abstract. The homogeneous nucleation of ice in supercooled liquid-water clouds is characterized by time-dependent freezing rates. By contrast, water phase transitions induced heterogeneously ice-nucleating particles (INPs) are described time-independent ice-active fractions depending on supersaturation (s). Laboratory studies report particle number (AFs) that cumulative s. Cloud models budget I...