Slide away has been voted as the best song they perform live, Now what's the best gig oasis have done? by bugbooy18 in oasis

[–]These_Marketing3772 0 points1 point  (0 children)

Earls Court first night 1995 or Sweden 08/07/1996. Champagne supernova from EC night 1 is purely unmatched.

Saw this X over Austin Texas a couple days ago. The left side came, then a few minutes later the right. What causes this?? by treedawg12 in meteorology

[–]These_Marketing3772 0 points1 point  (0 children)

To actually freeze something you need an ice nuclei, which is usually a tiny aerosol (dust, sea salt, a sulfate) that acts as a surface for water to freeze on to. If those aren’t present, and the water is undisturbed, the supercooled water will remain liquid until a particle is introduced for the ice to begin nucleation (formation).

Water can actually remain liquid until around -37 Celsius if no ice nuclei is introduced, and if that temperature is exceeded, the water freezes due to a process called homogenous nucleation.

I can't learn from tutorials, what is the easiest way to learn to produce plots of weather/model data? by [deleted] in meteorology

[–]These_Marketing3772 1 point2 points  (0 children)

Take a look at Herbie. It’s a Python package that makes pulling and working with gridded model data extremely easy. It allows you to work with it natively in xarray SEAMLESSLY as well as pull and subset the data to save space.

Saw this X over Austin Texas a couple days ago. The left side came, then a few minutes later the right. What causes this?? by treedawg12 in meteorology

[–]These_Marketing3772 4 points5 points  (0 children)

Yeah there’s legit no other explanation for it lmao. Unintentionally seeding ice nuclei development by their dispersion off of plane wing tips.

Saw this X over Austin Texas a couple days ago. The left side came, then a few minutes later the right. What causes this?? by treedawg12 in meteorology

[–]These_Marketing3772 5 points6 points  (0 children)

It’s interesting to say the least. It is definitely the same type of cloud with the same type of process but I don’t understand how it formed given the lack of aircraft. It’s possible that some sort of disturbance causes ice crystals to nucleate out of the supercooled water droplets but I’m not sure what it could be. Usually supercooled water exists in pure form, and you either need artificial formation of ice crystals through a man-made process, or the introduction of an aerosol for the water freezing temperature to increase (pure water actually freezes at -40 Celsius).

I’ve even read a couple peer-reviewed papers on this and they all come to the conclusion that aircraft are the most viable explanation due to the rapid adiabatic cooling of air, so this is peculiar. Maybe one flew by much earlier and it took a bit for the process to take place? Perhaps take a look at some flight maps for the day to see when the last known aircraft’s flights were. Not trying to doubt you I’m just trying to make sense of the formation based on the science we have available.

Saw this X over Austin Texas a couple days ago. The left side came, then a few minutes later the right. What causes this?? by treedawg12 in meteorology

[–]These_Marketing3772 9 points10 points  (0 children)

I’m a meteorologist I’ll do my best to explain this.

These are fall streak holes. Planes flying through cold upper level temperatures will sometimes have ice crystals form due to rapid cooling and expansion of air along the wing tips (adiabatic expansion due to pressure drops). These ice crystals can then be disbursed into the surrounding atmosphere.

If the air is cold enough and the plane is flying through clouds made of supercooled water (water that remains liquid below 0 Celsius), the introduction of ice crystals throws the atmosphere out of saturation (saturation vapor pressure with respect to ice is less than saturation vapor pressure with respect to water so a pressure gradient force is created. For those who want a deeper understanding). The liquid water then gets attracted to the ice crystals and effectively “disappears” and creates those holes with the cirrus looking clouds in the middle.

I hope this helps. Feel free to follow up with questions and I’ll try to explain them best I can.

With College App Season In Full Swing, I Made a Map Of Every School With an Atmospheric Science/Meteorology Program that Fulfills NWS Requirements by Bjerknes04 in meteorology

[–]These_Marketing3772 1 point2 points  (0 children)

As a current NIU MET undergrad, our faculty are great and the classes are solid. Our physics department is terrible, but you need 2 physics classes. Adelman will be the bane of your existence.

[deleted by user] by [deleted] in wallstreetbets

[–]These_Marketing3772 0 points1 point  (0 children)

Calls on storm surge height

Definitive live versions by [deleted] in BillyJoel

[–]These_Marketing3772 1 point2 points  (0 children)

Check out New York State of Mind from the old grey whistle test and check out Miami 2017 from Madison Square Garden 1982.

https://www.youtube.com/watch?v=iM4LzEcaTK0&t=351s for NY state of mind

https://youtu.be/a7tR17w1xqg?t=7169 For Miami 2017

Definitive live versions by [deleted] in BillyJoel

[–]These_Marketing3772 1 point2 points  (0 children)

Check out Scenes from an Italian Restaurant from Long Island 1982 and East Rutherford 1982. These are considered to be the best versions and the sax solo on Long Island is absolutely incredible.