Aging Salty Ice

When ice forms in salty water, it starts out mushy and porous. Salt does not freeze neatly into ice’s crystalline structure, so the forming ice has pores and gaps where salty brine gathers. As the ice ages, more brine is pushed out and gradually convects downward, due to its greater density. Over time, this makes the ice layer thinner but more solid, with fewer pores. You can see a timelapse of the process in a laboratory experiment below. (Image credit: sea ice – C. Matias, experiment – F. Wang et al.; research credit: F. Wang et al.)

Watch: Frost Forms In Mount Abu, Rajasthan As Temperature Dips

Watch: Frost Forms In Mount Abu, Rajasthan As Temperature Dips #MountAbu #Rajasthan #NakkiLake #Frost #IceFormation #MinusTemperature #Sirohi #GuruShikhar #RajasthanWinter #ColdWave #WeatherUpdate #Frozen --------------------------------------------------------------------------------------------------------- OdishaTV is Odisha's no 1 News Channel. OTV being the first private satellite TV channel in Odisha…

https://www.odnews.in/watch-frost-forms-in-mount-abu-rajasthan-as-temperature-dips-2/

Watch: Frost Forms In Mount Abu, Rajasthan As Temperature Dips

Watch: Frost Forms In Mount Abu, Rajasthan As Temperature Dips #MountAbu #Rajasthan #NakkiLake #Frost #IceFormation #MinusTemperature #Sirohi #GuruShikhar #RajasthanWinter #ColdWave #WeatherUpdate #Frozen --------------------------------------------------------------------------------------------------------- OdishaTV is Odisha's no 1 News Channel. OTV being the first private satellite TV channel in Odisha…

https://www.odnews.in/watch-frost-forms-in-mount-abu-rajasthan-as-temperature-dips/

Watch: Frost Forms In Mount Abu, Rajasthan As Temperature Dips

Watch: Frost Forms In Mount Abu, Rajasthan As Temperature Dips #MountAbu #Rajasthan #NakkiLake #Frost #IceFormation #MinusTemperature #Sirohi #GuruShikhar #RajasthanWinter #ColdWave #WeatherUpdate #Frozen --------------------------------------------------------------------------------------------------------- OdishaTV is Odisha's no 1 News Channel. OTV being the first private satellite TV channel in Odisha…

https://www.odnews.in/watch-frost-forms-in-mount-abu-rajasthan-as-temperature-dips/

How to Keep Water From Freezing

When supercooled, water can remain a liquid even below its freezing point. As explained in this Minute Physics video, this happens because of a tug-of-war between effects in the water. Generally speaking, having impurities in the water or smacking the bottle will shift that battle enough for freezing to win out. But it’s possible–theoretically, at least–to create a situation where supercooled water can never freeze. (Video and image credit: Minute Physics)

#fluidDynamics #freezing #iceFormation #physics #science #supercooling

Inside Hail Formation

Conventional wisdom suggests that hailstones form over the course of repeated trips up and down through a storm, but a new study suggests that formation method is less common than assumed. Researchers studied the isotope signatures in the layers of 27 hailstones to work out each stone’s formation history. They found that most hailstones (N = 16) grew without any reversal in direction. Another 7 only saw a single period when upwinds lifted them, and only 1 of the hailstones had cycled down-and-up more than once. They did find, however, that hailstones larger than 25mm (1 inch) in diameter had at least one period of growth during lifting.

So smaller hailstones likely don’t cycle up and down in a storm, but the largest (and most destructive) hailstones will climb at least once before their final descent. (Image credit: D. Trinks; research credit: X. Lin et al.; via Gizmodo)

#atmosphericScience #fluidDynamics #iceFormation #meteorology #physics #science #thunderstorm

Winter in Chicago

Fresh winter snow blankets Chicago in this satellite image. Over on Lake Michigan, ice dots the coastline out to about 20 kilometers from shore. Darker regions near land mark thinner ice being pushed outward by the wind. Further out, the ice appears white and may be thicker thanks to wind-driven ice piling up. (Image credit: M. Garrison; via NASA Earth Observatory)

#fluidDynamics #iceFormation #physics #satelliteImage #science #wind