By: David Coe Ph.D Student Record high temps in the mid to upper 70s have been seen across the region this weekend with multiple stations setting new daily records Friday and Saturday! Yet, just last week we were looking a bit more wintry: We saw our first significant snowfall of the season the end of […]
Sea-level rise is a major issue stemming from the bigger picture of Climate Change, and one that will have great impacts at the local and regional levels. Globally, it is estimated that 634 million people are at immediate risk due to sea-level rise, with the United States alone seeing around 40% of the population living in coastal areas.
by Mathew Barlow, EEAS Professor of Climate Science This post includes twenty short animations from our undergraduate two-course sequence in atmospheric dynamics. Topics covered include vorticity, waves, and instability. The code used for these animations can be found through https://storm.uml.edu/~metweb/Blog/?p=578 and https://github.com/mathewbarlow/simple-atmospheric-models. 1. Winds and rotors for an idealized vortex Embedding rotors (‘+’) in the flow allows […]
by Mathew Barlow, EEAS Professor of Climate Science This post gives links to freely-available code for simple models of the atmosphere (and ocean). If you know of anything I’ve missed, please email me at Mathew_Barlow@uml.edu and I will add it here. Many thanks to Daniela Domeisen, Geoff Vallis, Malte Stuecker, Nathaneal Wong, Milan Klöwer, and […]
by Mathew Barlow, Professor of Climate Science Blocks and jet streaks appear to be fairly different phenomena. However, in a very idealized sense, they can be thought of two versions of the same configuration: two oppositely-rotating vortices embedded in a westerly flow. Two opposite vortices, no background flow Two counter-rotating vortices that are nearby will […]
by Mathew Barlow, UML Professor of Climate Science This is a brief discussion of some of the ways different isolated areas of vorticity – vortices – can interact with each other and how those interactions are relevant to the atmosphere. (And ocean, but that’s for another time.) Vorticity is a local measure of rotation: if […]
by Mathew Barlow, UML Professor of Climate Science 1. Definitions Vorticity is a measure of local rotation in the atmosphere, and potential vorticity is an extension of vorticity that further accounts for the distribution of mass relative to the rotation. Potential vorticity can be thought of as the fluid equivalent to angular momentum. It may […]