Asset Details
Do you wish to reserve the book?
A Closer Look at the Evolution of Supercooled Cloud Droplet Temperature and Lifetime in Different Environmental Conditions with Implications for Ice Nucleation in the Evaporating Regions of Clouds
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
A Closer Look at the Evolution of Supercooled Cloud Droplet Temperature and Lifetime in Different Environmental Conditions with Implications for Ice Nucleation in the Evaporating Regions of Clouds
Do you wish to request the book?
A Closer Look at the Evolution of Supercooled Cloud Droplet Temperature and Lifetime in Different Environmental Conditions with Implications for Ice Nucleation in the Evaporating Regions of Clouds
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
A Closer Look at the Evolution of Supercooled Cloud Droplet Temperature and Lifetime in Different Environmental Conditions with Implications for Ice Nucleation in the Evaporating Regions of Clouds
2023
Overview
This study investigates the evolution of temperature and lifetime of evaporating, supercooled cloud droplets considering initial droplet radius ( r 0 ) and temperature ( ), and environmental relative humidity (RH), temperature ( T ∞ ), and pressure ( P ). The time ( t ss ) required by droplets to reach a lower steady-state temperature ( T ss ) after sudden introduction into a new subsaturated environment, the magnitude of Δ T = T ∞ − T ss , and droplet survival time ( t st ) at T ss are calculated. The temperature difference (Δ T ) is found to increase with T ∞ , and decrease with RH and P . Δ T was typically 1–5 K lower than T ∞ , with highest values (∼10.3 K) for very low RH, low P , and T ∞ closer to 0°C. Results show that t ss is <0.5 s over the range of initial droplet and environmental conditions considered. Larger droplets ( r 0 = 30–50 μ m) can survive at T ss for about 5 s to over 10 min, depending on the subsaturation of the environment. For higher RH and larger droplets, droplet lifetimes can increase by more than 100 s compared to those with droplet cooling ignored. T ss of the evaporating droplets can be approximated by the environmental thermodynamic wet-bulb temperature. Radiation was found to play a minor role in influencing droplet temperatures, except for larger droplets in environments close to saturation. The implications for ice nucleation in cloud-top generating cells and near cloud edges are discussed. Using T ss instead of T ∞ in widely used parameterization schemes could lead to enhanced number concentrations of activated ice-nucleating particles (INPs), by a typical factor of 2–30, with the greatest increases (≥100) coincident with low RH, low P , and T ∞ closer to 0°C.
