The mesopause is the point of minimum temperature at the boundary between the mesosphere and the thermosphere atmospheric regions. Due to the lack of solar heating and very strong radiative cooling from carbon dioxide, the mesosphere is the coldest region on Earth with temperatures as low as -100 °C (-148 °F or 173 K). The altitude of the mesopause for many years was assumed to be at around 85 km (53 mi), but observations to higher altitudes and modeling studies in the last 10 years have shown that in fact the mesopause consists of two minima - one at about 85 km and a stronger minimum at about 100 km (62 mi). Another feature is that the summer mesopause is cooler than the winter (sometimes referred to as the mesopause anomaly). It is due to a summer-to-winter circulation giving rise to upwelling at the summer pole and downwelling at the winter pole. Air rising will expand and cool resulting in a cold summer mesopause and conversely downwelling air results in compression and associated increase in temperature at the winter mesopause. In the mesosphere the summer-to-winter circulation is due to gravity wave dissipation, which deposits momentum against the mean east–west flow, resulting in a small north–south circulation. In recent years the mesopause has also been the focus of studies on global climate change associated with increases in CO2. Unlike the troposphere, where greenhouse gases result in the atmosphere heating up, increased CO2 in the mesosphere acts to cool the atmosphere due to increased radiative emission. This results in a measurable effect - the mesopause should become cooler with increased CO2. Observations do show a decrease of temperature of the mesopause, though the magnitude of this decrease varies and is subject to further study. Modeling studies of this phenomenon have also been carried out. (Wikipedia).
Minimize your crypto tax burden with Ledgible: https://ledgible.io/ With the growing interest in the stock market by new investors, the frenzy has created a new type of stock: the meme stock. Meme stocks don’t mean that the internet’s favorite meme from that week is now trading on the sto
From playlist Concerning Finance
An general explanation of the underactive thyroid.
From playlist For Patients
5 Best Practices In DevOps Culture | What is DevOps? | Edureka
🔥𝐄𝐝𝐮𝐫𝐞𝐤𝐚 𝐃𝐞𝐯𝐎𝐩𝐬 𝐏𝐨𝐬𝐭 𝐆𝐫𝐚𝐝𝐮𝐚𝐭𝐞 𝐏𝐫𝐨𝐠𝐫𝐚𝐦 𝐰𝐢𝐭𝐡 𝐏𝐮𝐫𝐝𝐮𝐞 𝐔𝐧𝐢𝐯𝐞𝐫𝐬𝐢𝐭𝐲: https://www.edureka.co/executive-programs/purdue-devops This tutorial explains what is DevOps. It will help you understand some of its best practices in DevOps culture. This video will also provide an insight into how different
From playlist Webinars by Edureka!
Astronomy - Ch. 9.1: Earth's Atmosphere (6 of 61) Atmospheric Temperature Gradient
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain the various “layers” of Earth's atmosphere and it's various temperature gradient. I will explain why Earth's temperature decreases, stays constant, increases, stays constant, decreases, stays
From playlist THE GREENHOUSE EFFECT
My #MegaFavNumbers is the long form centillion
Responding to the call from my favourite math YouTubers. #MegaFavNumbers. The long form centillion. 1,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,
From playlist MegaFavNumbers
Real Meaning Behind The Word "Meme"
Today, the word "meme" is typically used to describe a funny photo with text that gets passed around online. But Richard Dawkins coined the term years before the World Wide Web even existed. Dawkins in a distinguished evolutionary biologist and writer. He has authored several books, the m
From playlist Interviews
HSC Chemistry Chemical Monitoring and Management Atmospheric Pollutants
From playlist HSC Chemistry - Chemical Monitoring and Management
Eteinne Farcot - The Multiradial Represenation of IUT
http://www.nottingham.ac.uk/cmmb/people/etienne.farcot
From playlist Mathematical Shenanigans
A recent paper redefines where space begins... Featuring Dr Meghan Gray from the University of Nottingham. More links and info below ↓ ↓ ↓ PAPER The edge of space: Revisiting the Karman Line https://arxiv.org/abs/1807.07894 More videos with Dr Gray: http://bit.ly/Meghan_Playlist Discus
From playlist Meghan Gray - Sixty Symbols
Check us out on iTunes! http://dne.ws/1NixUds Please Subscribe! http://testu.be/1FjtHn5 Breasts are for feeding our young but there's another persistent theory that breasts play a larger role in attracting a male counterpart. + + + + + + + + Previous Series: The Birth And De
From playlist Breasts: What They Do, Why We Have Them, And How They Can Change Your Life
Clojure - the Reader and Evaluator (4/4)
Part of a series teaching the Clojure language. For other programming topics, visit http://codeschool.org
From playlist the Clojure language
Clojure - the Reader and Evaluator (2/4)
Part of a series teaching the Clojure language. For other programming topics, visit http://codeschool.org
From playlist the Clojure language