We are a fulltime sailing / cruising family. We are watching this series as a family as Understanding weather is extreme!y important to our lives at sea.
In the mid 1970's I took a "short course" in meteorology taught by Don Ahrens. That was truly the best college class I have even taken. Glad to find you here on UA-cam for my refresher course 45 years later!!! Thank you for doing this series!!
Great stuff. I appreciate that the majority of the slides also had metric. Every time you leave metric off, we in Canada will send you another cold front.
@@DaveCocchiarellaWinterPark speaking of which, I have been using what I learned in the class to figure out how to keep the condensation off my windows in my apartment... Literally calculating dew points, measuring humidity, setting up fans to increase air flow
I’m deeply grateful to you sir as you have taken out time to teach these topics online! Few days back I was struggling to understand these topic alone and now it is a lot clear to understand.I am a aspiring pilot sir and I believe this content will surely help a lot of us. Thanks a lot sir!
WPLU572 Trunked Radio I’m taking grade 12 math and grade 12 physics at the moment so I will be understand wiens law and broffzem law (I think I got those names wrong) I am really intreasted in weather I love watching the snow , I love watching the rain . Your wittnissing at the moment the earth’s equilibrium with the sun and you have to take in the consideration of the earth-atmosphere relationship. I love it I want to study it and be able to help and prevent shit like I heard something about “thunderstorm asthma” I find that interesting , due to the fact I was born with asthma...
Dave, Great introduction to meteorology. I'm a chemistry instructor and during the gas chapter I always enjoy talking about low and high pressure regions, along with the tradewinds here in Hawaii and their relation to atmospheric pressure. There are so many variables to the weather and it was really cool learning about the stratosphere causes of the low and high pressure regions in our troposphere. Also, this spring semester the college has me judging the Middle School Meteorology competition of the Science Olympiad, so I could use a good bit of background before doing it. Your course is exactly what I was looking for - great explanations and teaching on your part. It's a fascinating field.
Excellent lecture. Based out of SW Florida ...we will be seeing a busy hurricane season ..predicting 27 storms 14 hurricanes and 8 major hurricanes ...hope everyone will be safe
I am getting ready to take Elementary Meteorology classes at Fort Hays State University. I love watching these lectures. I feel like they are going to help me a lot soon. Thank you so much for posting for all to see.
Very helpful and well explained!! I am 27 (Earth Science Background) and had decided to pursue career meteorology! I am fascinated by the weather, atmosphere and climate, I think being a meteorologist would be my dream job!
I chose Intro to Meteorology (MET1010) for my undergrad degree physical science requirement. This series will definitely help me out. Thank you so much!!! :)
I know that this video was made in 2016 but thank you for this. I'm taking a meteorology class and your lectures helps me. I had to buy a book for this class but my ADD is ridiculous. My eyes are like 'read' but my mind is like 'nope' haha. Again, thank you for these videos.
Look up the fallacy argumentum ad populum otherwise known as the fallacy that there is a democracy of truth.Just because something is "generally accepted", it does not mean that it is necessarily true because of that city and only because it may or may not be generally accepted, so it might help those unfamiliar with logical fallacies to look up the fallacy argumentum ad populum and see if they can understand why it is a fallacy and one of the more obvious fallacies
What is your point? Generally accepted science is generally accepted because it is verified by the best available evidences to date, it is not hot air like philosophy and those who use examples of logical fallacies to make fallacious arguments against verified science that has mountains of evidences in support of it.
What is your point? Generally accepted science is generally accepted because it is verified by the best available evidences to date, it is not hot air like philosophy and those who use examples of logical fallacies to make fallacious arguments against verified science that has mountains of evidences in support of it.
A lot better than my online meteorology professor. He just gives us study guides. which I am sure by the publisher and not himself. Not sure why I spent close to $400 for a class I could just buy the book and learn myself
Sorry to hear that Adam, I teach Meteorology and Earth Science online at Valencia College and Oceanography online at Seminole State College. Let me know if you have questions. Dave C
After the photo disassociation, does that H2 hang around or does it get blown away by solar wind like the first atmosphere? If it hangs around, won’t it then react with O2 in, say, a lightning storm?
Hey man! I don't know if you still reply to anything anymore but I really appreciate these videos, I'm an aspiring meteorologist and these videos are helping me prepare for college!
Thank you so much. I got a lot more out of this lecture series than out of the Teach Company/Great Courses course. Perhaps the only down slide is the not-so-great audio quality but overall a great course.
A question about wake turbulence & vortices - as I encountered a question on an RPAS pilot exam. The question asks what factor could cause a vortex to stagnate above my ground position, with options being (Tall trees around my position, (b) light wind), (c) relief, such as hill or mountain, or (d) cloudy sky with precipitation. From my own research, (b) does not seem the answer as light wind will simply move the vortex around. (d) does not seem correct either, as precipitation will have no effect on vortices. (c) seems correct to me, as any sharp vertical movement due to orthographic lift would disrupt it, but I cannot verify that this is correct. Any advice?
Sorry Matt, I just saw this. Did you get an answer from the test? I f the question is about the vortex stagnating, my first inclination is light wind, what did you find out?
38:50 the lapste rate is 6.5 cm / 1000m haha I guess I'm the only one who's made it this far to say something! I really did appreciate the final picture. Just making sure I understand, but the Low is causing the wind to come together as it approaches the low, shooting the wind down, creating the higher pressure on the surface. Then as the wind is escaping the pull of the low, it diverges making the wind come up from the surface, creating a low on the surface?
Wind moves from high pressure to low pressure. at the surface the center of the low pressure is surrounded by higher pressure, so air moves from high to low. At the center of the low, air converges and is forced to rise (it piles up). The air rises to the tropopause, where the stable air of the stratosphere creates a lid on the troposphere. In the upper levels, the air diverges (moves away) at the tropopause creating high pressure aloft.
If water vapor is a strong greenhouse gas, what prevents a positive feedback loop on earth? Take 19:23 for example, when there was a lot more CO2 than today, What stopped it from becoming a positive feedback loop?
Water vapor has low residence time in reservoirs. In other words it moves around a lot and changes from from gas (vapor), liquid, or solid (ice) alot. More H2O does play a part in warming though in that it is the precipitation in increases storms. And not only is a lot of water vapor released from fossil fuel production, CH4 (methane) also breaks down into CO2 and H2O (C attaches to O2 and H2 x 2 attaches to O).
Water vapor has low residence time in reservoirs. In other words it moves around a lot and changes from from gas (vapor), liquid, or solid (ice) alot. More H2O does play a part in warming though in that it is the precipitation in increases storms. And not only is a lot of water vapor released from fossil fuel production, CH4 (methane) also breaks down into CO2 and H2O (C attaches to O2 and H2 x 2 attaches to O).
@@whatabouttheearth Thanks. I don't understand. Even if it cycles, shouldn't higher temperature lead to more water vapor all around? Leading to higher temperatures? Or are you saying that more water vapor leads to more clouds and they tend to balance each other out?
There is something utterly absurd about the statement "most scientists "believe"" Belief is the exact opposite of knowledge or direct immediate personal experience, in fact belief means accepting without question, so the proposition that most scientists accept that question rather tends to contradict itself
hello ... we just got hit by a category 5 typhoon here in the philippines. can i ask, how do meteorologists identify a Low Pressure Area on the satellite map ? sometimes they would point out an LPA on the map but it seems empty with only a few clouds.
Because air is fluid, the pressure it exerts occurs in all directions. Here is a good conversation on the topic you raise: scienceline.ucsb.edu/getkey.php?key=907 But ultimately, there is very little air pressure difference between being inside and outside of a building.
Dear sir Currently I am pursuing MSc physics Is it still possible to become meteorologist what are the relevant courses and other skills required? please reply as I am in great dilemma now!
@@DaveCocchiarellaWinterPark yes sir in my home country there is not much scope in this field . Currently I am preparing for an assistant professor job .Soon I will apply for some foreign country after experience and exposure .Then hopefully volunteer myself for some meteorologist post as there is not much scope here Thanks Sir
Hi! Thank you for this awesome and informative class. Is there a citation regarding how the reason for the invention of the computer was for weather predictions? I am hoping to use it for a paper. Thank you!
Sorry I just saw this. The first weather models ran on the first generation of computers, but I do not think that is the only reason computers were developed.
What? The sun is not going to explode, it's not big enough to go super nova. It will expand in about 4.5 billion years. And water will not stop the sun from expanding, it will simply break up the hydrogen from oxygen in the H2O. These elements were made in stars anyway, from the gravitational slam inward, balanced by the nuclear thrust outward, unless a star is big enough to where iron is made, iron is cool, so it doesn't have a outward nuclear thrust, this causes the gravitational rhythm slam in extra hard because it doesn't have the resistance from the outward nuclear push, when this happens it instantly makes all the other elements past iron on the periodic table, and the outward nuclear thrust caused by that is so powerful it makes a super nova and blows up. But our sun is far too small to ever go super nova.
What? The sun is not going to explode, it's not big enough to go super nova. It will expand in about 4.5 billion years. And water will not stop the sun from expanding, it will simply break up the hydrogen from oxygen in the H2O. These elements were made in stars anyway, from the gravitational slam inward, balanced by the nuclear thrust outward, unless a star is big enough to where iron is made, iron is cool, so it doesn't have a outward nuclear thrust, this causes the gravitational rhythm slam in extra hard because it doesn't have the resistance from the outward nuclear push, when this happens it instantly makes all the other elements past iron on the periodic table, and the outward nuclear thrust caused by that is so powerful it makes a super nova and blows up. But our sun is far too small to ever go super nova.
Awesome stuff! Growing up in the Midwest and seeing fantastic weather, weather has always fascinated me. I'm trying to decide whether to go into atmospheric science. I'm a little scared of all the math and science classes that are required tho 😬
Hello, Dave! Thanks for sharing the video! I'm trying to solve some exercises on Boundary Layer Meteorology based on Stull's book, specially of Similarity Theory but I'm with some difficulties. Do you know if there is some forum or group where I could share my doubts and try to solve them?
Sorry for the late reply. I am not aware of any forums, sorry. You may want to contact the Mississippi State University department of meteorology - they are a great resource. dc
Have fun! Always smile when you are on camera! Don't try to frighten people when the weather is bad and never change your plans over a weather forecast in Florida ;-)
Hi Dave,thank you for this video.I'm a high school graduate and I love this video.But I'm a little bit confused about that illustration you provided at the end of this chapter.Why would the air converge and then diverge when passing through a upper level low?Definitely there are no visible lanes that we might see on a high way.
Hello, the troposphere is the lowest level of the atmosphere where 99% of all weather occurs. It averages about 11 miles deep, but varies in thickness due to average temperature throughout the column with warmer air creating a thick troposphere. The troposphere is bounded at the top by the tropopause, the air layer above the troposphere is the stratosphere. Air in the stratosphere gradually warms with height as the stratosphere contains most of the ozone. Because air temperatures warm with height, an inversion is created and the stratosphere is very stable (air does not move vertically) and acts like a lid on the troposphere. So air in the upper levels that is converging piles up, but it cannot rise because it is bounded by the tropopause, so it is forced down.
Wow! That is very detailed answer!Thank you very much!XD. But why would the air converge?Is it because the air pressure is lower so that the surrounding air is crowding into that "low area",thus making the air converge and the density greater?
Also,why would converging air forces air to go down?I remember my geography teacher in high school explained the air goes down because it is colder in the upper level sky so that the air gets colder so that the air converges and becomes heavier and then it drops down.I guess both of you and my teacher meant exactly the same thing,right?
Converging air at the upper levels will force downward motion. As the air converges, it piles up, but it cannot go up because it is limited by the tropopause, so it goes down. Convergence in the upper levels causes air to sink. Cold air also sinks as it is more dense.
Cold = less mass, more density Warm = more mass, less density This is why warm water has "thermal expansion", so the warmer an ocean gets the more sea levels rise. And why the downwelling in the northern Atlantic (AMOC, Atlantic Meridional Overturning Circulation) because it's already salty (which increases density) and turns cold as it goes northward, so therefore gains density, so it falls. Or why upwelling brings phytoplankton up that causes great ocean migrations, the warm water is low in density but high in mass, so it doesn't sink because the colder water below it is more dense. The cold southward polar easterly winds that make the lower pressure "wall" between the Ferrel and Polar cells do something similar, they are more dense than the northwards warm westerlies from the Ferrel Cell so they push that warmer wind upwards creating a low pressure. In the Troposphere higher gets colder (higher gets warmer in the Stratosphere), but there is less air because gravity causes a pull downwards (atoms and molecules do have mass after all), so the cold air converges and collects in density of that parcel of air.
Cold = less mass, more density Warm = more mass, less density This is why warm water has "thermal expansion", so the warmer an ocean gets the more sea levels rise. And why the downwelling in the northern Atlantic (AMOC, Atlantic Meridional Overturning Circulation) because it's already salty (which increases density) and turns cold as it goes northward, so therefore gains density, so it falls. Or why upwelling brings phytoplankton up that causes great ocean migrations, the warm water is low in density but high in mass, so it doesn't sink because the colder water below it is more dense. The cold southward polar easterly winds that make the lower pressure "wall" between the Ferrel and Polar cells do something similar, they are more dense than the northwards warm westerlies from the Ferrel Cell so they push that warmer wind upwards creating a low pressure. In the Troposphere higher gets colder (higher gets warmer in the Stratosphere), but there is less air because gravity causes a pull downwards (atoms and molecules do have mass after all), so the cold air converges and collects in density of that parcel of air.
Absolutely, check out Mississippi State‘s broadcast Meteorology program, you can learn while you’re working in other aspects of broadcasting or in whatever job you have now. I started out in radio and one on my way into television Weather and Meteorology using that route it’s very successful for a lot of people in the business
I’d love to go to college for this because I’ve always loved meteorology and climatology since I was a kid, but I feel like I’m already to old to go to school for it 😂(25) AND how often can people who study it get jobs in that field ?
Hello, I love the video and I am already thoroughly enganged in it. Might there possibly be any study packets to do along with this (if there is can you possibly link it to me). I love weather and the way it does its work. I have been looking here alot recently in meterology and is there any colleges around the Illinois area that might provide meterology? I also am a freshman in high school, so I have some time to look at colleges, and what I want to do but I really like meterology and I am hoping to get into that career. Thank you, if you can reply back.
Oohh good question... the high pressure at the surface (about 1000 mb) and the low pressure aloft (0 at the edge of space) actually create a sort of pressure gradient that works against the pull of gravity. This pressure is exerted in all directions: up, down, and to all sides. For equilibrium, the pressure exerted by an air parcel is exactly balanced by the downward force exerted by the overlying air pulled by gravity. This balance is known as hydrostatic equilibrium.
Hi Dave! I am Nehuen, from Argentine, and I am going to study for being a Meteorologist in UBA (Universidad of Buenos Aires) ! Thank you for the videos, and please, if you can share your profile it would be awesome! Thanks for the video
So everything just fell together in perfect balance from an explosion called the Big Bang without being created by a Creator? I've never seen any type of balance or order result from an explosion. As a matter fact, it's quite the opposite. Explosions are chaotic. Totally unreasonable to think the universe wasn't created.
Great perspective. With regards to the name "The Big Bang" Scientist at the time this name was assigned to the theory were being sarcastic as the thinking at the time was the idea was ridiculous. The name "Big Bang" was meant to be sarcastic. The theory suggests the Universe began with a rapid and very hot expansion from a single point. Certainly something a Creator could have a hand in starting. Consider this perspective: www.nbcnews.com/news/world/pope-francis-evolution-big-bang-theory-are-real-n235696 Ultimately, I respect your beliefs however the shape the Beginning - The Big Bang is simply the Theory scientist largely support today. What makes Good Science work is the ability to change when new data in introduced, and it is certainly possible scientist in the near or distant future will uncover data contradicting the current theory. If that happens, Good Science should be able to adapt new theories to the new data. Thank you for your input. dc
So basically is what he's saying is this. You can be an adult and learn what is or you can be a child and believe in the Easter Bunny. Make a decision.
You don't just get to call anything you don't like "psuedoscience" because it conflicts with your ignorance, collect evidence for your hypothesis and submit it to a legitimate peer reviewed journal so it can get torn apart by others. If it stands after decades of attacks and cross correlating evidences like the Big Bang Theory than maybe it will deserve the right to be a generally accepted hypothesis.
You don't just get to call anything you don't like "psuedoscience" because it conflicts with your ignorance, collect evidence for your hypothesis and submit it to a legitimate peer reviewed journal so it can get torn apart by others. If it stands after decades of attacks and cross correlating evidences like the Big Bang Theory than maybe it will deserve the right to be a generally accepted hypothesis.
We are a fulltime sailing / cruising family. We are watching this series as a family as Understanding weather is extreme!y important to our lives at sea.
In the mid 1970's I took a "short course" in meteorology taught by Don Ahrens. That was truly the best college class I have even taken. Glad to find you here on UA-cam for my refresher course 45 years later!!! Thank you for doing this series!!
Very cool!
Great stuff. I appreciate that the majority of the slides also had metric. Every time you leave metric off, we in Canada will send you another cold front.
Thanks for the info! have a great day. dc
We in Florida would really enjoy more cold fronts
@@DaveCocchiarellaWinterPark we sure have one here in Ontario, snowy start to the winter season
@@DaveCocchiarellaWinterPark speaking of which, I have been using what I learned in the class to figure out how to keep the condensation off my windows in my apartment... Literally calculating dew points, measuring humidity, setting up fans to increase air flow
underrated comment
I’m deeply grateful to you sir as you have taken out time to teach these topics online!
Few days back I was struggling to understand these topic alone and now it is a lot clear to understand.I am a aspiring pilot sir and I believe this content will surely help a lot of us.
Thanks a lot sir!
All the best
I really want to be a Meteorologist!!!! I love the Weather!!
You can do it!
I love meteorology too! But meteorology involves major math. I'm horrible at math. But this is my dream job.
@@katiekat8 same i just turned 17 and most of my days now are watching meteorology videos or biology videos and read from this textbook
WPLU572 Trunked Radio I’m taking grade 12 math and grade 12 physics at the moment so I will be understand wiens law and broffzem law (I think I got those names wrong) I am really intreasted in weather I love watching the snow , I love watching the rain . Your wittnissing at the moment the earth’s equilibrium with the sun and you have to take in the consideration of the earth-atmosphere relationship. I love it I want to study it and be able to help and prevent shit like I heard something about “thunderstorm asthma” I find that interesting , due to the fact I was born with asthma...
WPLU572 Trunked Radio any tips I would really appreciate
That was a wonderful intro. Who knew.
Great service to education
you are too kind
Phenomenal
Finally someone who can provide historical connections
Dave,
Great introduction to meteorology. I'm a chemistry instructor and during the gas chapter I always enjoy talking about low and high pressure regions, along with the tradewinds here in Hawaii and their relation to atmospheric pressure. There are so many variables to the weather and it was really cool learning about the stratosphere causes of the low and high pressure regions in our troposphere. Also, this spring semester the college has me judging the Middle School Meteorology competition of the Science Olympiad, so I could use a good bit of background before doing it. Your course is exactly what I was looking for - great explanations and teaching on your part. It's a fascinating field.
Hi Jeffrey. I had the great pleasure of living and working in Hale’iwa many years ago
The best meteorology courses on the internet. Helped me through all my aviation exams . Hats off to you sir and thank you from the bottom of my heart!
Thank you for your kind words, and remember, no drinking on final approach.
Excellent lecture. Based out of SW Florida ...we will be seeing a busy hurricane season ..predicting 27 storms 14 hurricanes and 8 major hurricanes ...hope everyone will be safe
I am getting ready to take Elementary Meteorology classes at Fort Hays State University. I love watching these lectures. I feel like they are going to help me a lot soon. Thank you so much for posting for all to see.
You are very welcome, let me know if you have any specific questions on your course material. dc
Thank you, I'm a 14 year old trying to become a Meteorologist this has really helped
That is awesome. Thank you. dc
Very helpful and well explained!! I am 27 (Earth Science Background) and had decided to pursue career meteorology! I am fascinated by the weather, atmosphere and climate, I think being a meteorologist would be my dream job!
Wonderful! Good Luck!
This is amazing. Thank you so much for sharing and teaching us this valuable information.
You are so welcome! dc ;-)
I chose Intro to Meteorology (MET1010) for my undergrad degree physical science requirement. This series will definitely help me out. Thank you so much!!! :)
You are very welcome Victor, Enjoy!
I know that this video was made in 2016 but thank you for this. I'm taking a meteorology class and your lectures helps me. I had to buy a book for this class but my ADD is ridiculous. My eyes are like 'read' but my mind is like 'nope' haha. Again, thank you for these videos.
Glad I could help
I am 15 and I can't wait to get to college so I can get my degree already! I think this is great! :) Thank you very much for uploading!
You're so welcome!
Look up the fallacy argumentum ad populum otherwise known as the fallacy that there is a democracy of truth.Just because something is "generally accepted", it does not mean that it is necessarily true because of that city and only because it may or may not be generally accepted, so it might help those unfamiliar with logical fallacies to look up the fallacy argumentum ad populum and see if they can understand why it is a fallacy and one of the more obvious fallacies
What is your point? Generally accepted science is generally accepted because it is verified by the best available evidences to date, it is not hot air like philosophy and those who use examples of logical fallacies to make fallacious arguments against verified science that has mountains of evidences in support of it.
What is your point? Generally accepted science is generally accepted because it is verified by the best available evidences to date, it is not hot air like philosophy and those who use examples of logical fallacies to make fallacious arguments against verified science that has mountains of evidences in support of it.
It is amazing how you managed to simplify the complex processes of the sun, planets, earth and atmosphere formation, hallelujah
Wow, thank you
Dave: in this course, we will learn about atmospheric sciences, and meteorology.
Also Dave: let's learn about nuclear fusion and the Big Bang!
thank you for uploading this, this series has been really really helpful to me!
Glad it was helpful!
I am going to begin my bachelor studies at Purdue University this Fall! I have been waiting a long time to begin my studies!!
Matthew Graber that is fantastic, remember it all comes down to whether Hair is going up for air is going down
A lot better than my online meteorology professor. He just gives us study guides. which I am sure by the publisher and not himself. Not sure why I spent close to $400 for a class I could just buy the book and learn myself
Sorry to hear that Adam, I teach Meteorology and Earth Science online at Valencia College and Oceanography online at Seminole State College. Let me know if you have questions. Dave C
This explanation brings into focus how miraculous life on Earth is.
I am glad you enjoyed it!
AWESOME! I'm I'm in science olympiad and I have a competition on saturday and I'm competing for meteorology this helped so much
Fantastic. How did you do?
Thank you for sharing this video!
you are welcome
Thank you for the class. Can you clarify that last demonstration on convergence and divergence? Seems like a critically important topic!
Thrilling and great explanations ! Thanks
You are welcome!
After the photo disassociation, does that H2 hang around or does it get blown away by solar wind like the first atmosphere? If it hangs around, won’t it then react with O2 in, say, a lightning storm?
Hydrogen is blown away (largely) by the solar wind
Where does helium for balloons come from? They said their was a shortage at the $1:25 store.
Hey man! I don't know if you still reply to anything anymore but I really appreciate these videos, I'm an aspiring meteorologist and these videos are helping me prepare for college!
4:14 😂 "in order to make an apple pie from scratch, first you must create a universe" - Carl Sagan
This is awesome, im glad i found this. Been thinking about going back to college and finishing, then going to uni for meteorology degree. Niceee
Best of luck!
Great lecture. Very informative
I'm considering if I want to study Meteorology in college with the Air Fore ROTC, this gave me a good idea of if I am interested in it or not, thanks!
Thank you!
You know, Jim Cantore got started as an Air Force Meteorologist!
Awesome to search Meteorology and see a local meteorologist
Thank you, Erica
Thank you so much. I got a lot more out of this lecture series than out of the Teach Company/Great Courses course. Perhaps the only down slide is the not-so-great audio quality but overall a great course.
Glad it was helpful! Yes quality is very last decade. dc
A question about wake turbulence & vortices - as I encountered a question on an RPAS pilot exam. The question asks what factor could cause a vortex to stagnate above my ground position, with options being (Tall trees around my position, (b) light wind), (c) relief, such as hill or mountain, or (d) cloudy sky with precipitation. From my own research, (b) does not seem the answer as light wind will simply move the vortex around. (d) does not seem correct either, as precipitation will have no effect on vortices. (c) seems correct to me, as any sharp vertical movement due to orthographic lift would disrupt it, but I cannot verify that this is correct. Any advice?
Sorry Matt, I just saw this. Did you get an answer from the test? I f the question is about the vortex stagnating, my first inclination is light wind, what did you find out?
38:50 the lapste rate is 6.5 cm / 1000m haha I guess I'm the only one who's made it this far to say something! I really did appreciate the final picture. Just making sure I understand, but the Low is causing the wind to come together as it approaches the low, shooting the wind down, creating the higher pressure on the surface. Then as the wind is escaping the pull of the low, it diverges making the wind come up from the surface, creating a low on the surface?
Wind moves from high pressure to low pressure. at the surface the center of the low pressure is surrounded by higher pressure, so air moves from high to low. At the center of the low, air converges and is forced to rise (it piles up). The air rises to the tropopause, where the stable air of the stratosphere creates a lid on the troposphere. In the upper levels, the air diverges (moves away) at the tropopause creating high pressure aloft.
Please create playlists for your various class series’
Thx
If water vapor is a strong greenhouse gas, what prevents a positive feedback loop on earth? Take 19:23 for example, when there was a lot more CO2 than today, What stopped it from becoming a positive feedback loop?
Water vapor has low residence time in reservoirs. In other words it moves around a lot and changes from from gas (vapor), liquid, or solid (ice) alot.
More H2O does play a part in warming though in that it is the precipitation in increases storms. And not only is a lot of water vapor released from fossil fuel production, CH4 (methane) also breaks down into CO2 and H2O (C attaches to O2 and H2 x 2 attaches to O).
Water vapor has low residence time in reservoirs. In other words it moves around a lot and changes from from gas (vapor), liquid, or solid (ice) alot.
More H2O does play a part in warming though in that it is the precipitation in increases storms. And not only is a lot of water vapor released from fossil fuel production, CH4 (methane) also breaks down into CO2 and H2O (C attaches to O2 and H2 x 2 attaches to O).
@@whatabouttheearth Thanks. I don't understand. Even if it cycles, shouldn't higher temperature lead to more water vapor all around? Leading to higher temperatures? Or are you saying that more water vapor leads to more clouds and they tend to balance each other out?
Thank you so much. I'm going into my senior year of high school and I want to be a meteorologist
That is Awesome Patrick, where do you plan to go to college?
University of Tennessee-Martin and then probably Mississippi State or Penn State and eventually get my Ph.D
MSU and Penn have awesome Met programs, I got my Masters at MSU. Aim for the Ivy!
Thank you so much for these. I really needed it for our exams and this has gave me big help.
I'm so glad!
There is something utterly absurd about the statement "most scientists "believe""
Belief is the exact opposite of knowledge or direct immediate personal experience, in fact belief means accepting without question, so the proposition that most scientists accept that question rather tends to contradict itself
hello ... we just got hit by a category 5 typhoon here in the philippines.
can i ask, how do meteorologists identify a Low Pressure Area on the satellite map ?
sometimes they would point out an LPA on the map but it seems empty with only a few clouds.
In the northern hemisphere, c counter-clockwise turning comma cloud
@@DaveCocchiarellaWinterPark thanks
This is excellent
Thank you. dave
How come when you are in building the air pressure doesn't drop? The roof of the building would be supporting a lot of the weight of the air right?
Because air is fluid, the pressure it exerts occurs in all directions. Here is a good conversation on the topic you raise: scienceline.ucsb.edu/getkey.php?key=907 But ultimately, there is very little air pressure difference between being inside and outside of a building.
Thank you for the question!
Dear sir
Currently I am pursuing MSc physics
Is it still possible to become meteorologist what are the relevant courses and other skills required? please reply as I am in great dilemma now!
Yes, Math & Science. Go to a school with radio or TV station and volunteer and work to get onair at the school station. Experience pays.
@@DaveCocchiarellaWinterPark yes sir in my home country there is not much scope in this field .
Currently I am preparing for an assistant professor job .Soon I will apply for some foreign country after experience and exposure .Then hopefully volunteer myself for some meteorologist post as there is not much scope here
Thanks Sir
Excellent lecture, thanks 😊
Glad it was helpful!
Needing to write a three-page paper! This what I need!
Hope it helped
This needs to be apart of living in Florida. 💯
Thanks for the nice Lecture its help me a lots
Glad to hear that
Hi! Thank you for this awesome and informative class. Is there a citation regarding how the reason for the invention of the computer was for weather predictions? I am hoping to use it for a paper. Thank you!
Sorry I just saw this. The first weather models ran on the first generation of computers, but I do not think that is the only reason computers were developed.
If there was more water near the sun (or a water source), would it be less likely to explode?
What? The sun is not going to explode, it's not big enough to go super nova. It will expand in about 4.5 billion years.
And water will not stop the sun from expanding, it will simply break up the hydrogen from oxygen in the H2O. These elements were made in stars anyway, from the gravitational slam inward, balanced by the nuclear thrust outward, unless a star is big enough to where iron is made, iron is cool, so it doesn't have a outward nuclear thrust, this causes the gravitational rhythm slam in extra hard because it doesn't have the resistance from the outward nuclear push, when this happens it instantly makes all the other elements past iron on the periodic table, and the outward nuclear thrust caused by that is so powerful it makes a super nova and blows up. But our sun is far too small to ever go super nova.
What? The sun is not going to explode, it's not big enough to go super nova. It will expand in about 4.5 billion years.
And water will not stop the sun from expanding, it will simply break up the hydrogen from oxygen in the H2O. These elements were made in stars anyway, from the gravitational slam inward, balanced by the nuclear thrust outward, unless a star is big enough to where iron is made, iron is cool, so it doesn't have a outward nuclear thrust, this causes the gravitational rhythm slam in extra hard because it doesn't have the resistance from the outward nuclear push, when this happens it instantly makes all the other elements past iron on the periodic table, and the outward nuclear thrust caused by that is so powerful it makes a super nova and blows up. But our sun is far too small to ever go super nova.
thank you for making this video!!!!!!!!!!!!!!!
You are so welcome!
I really want to become a hot air balloon pilot, and it would be super cool to understand meteorology too. Thank you so much for uploading this video!
Best of luck! dc
Thank you! This was great!
Glad you enjoyed it!
What textbook was followed?
for which course Meteorology, Oceanography or Earth Science
Hi Dave, in the slide you have "Statosphere", is that a typo ? Love the class by the way.
Thank you for letting me know. Dave
@26:57 this is stated as the ozone-oxygen cycle
Starting at OU for meteorology next fall. I'll watch this and anything else I can find until then!
OU is one of the best in Meteorology, congratulations
Jolly good lecture! Cheers!
thank you
Awesome stuff! Growing up in the Midwest and seeing fantastic weather, weather has always fascinated me. I'm trying to decide whether to go into atmospheric science. I'm a little scared of all the math and science classes that are required tho 😬
Go for it, you will do fine!
THIS is exactly me. lol Calculus. ugh. 😂😩🙏🏽
Hello, Dave! Thanks for sharing the video! I'm trying to solve some exercises on Boundary Layer Meteorology based on Stull's book, specially of Similarity Theory but I'm with some difficulties. Do you know if there is some forum or group where I could share my doubts and try to solve them?
Sorry for the late reply. I am not aware of any forums, sorry. You may want to contact the Mississippi State University department of meteorology - they are a great resource. dc
Im a kid meteorologist do you have any tips
Have fun! Always smile when you are on camera! Don't try to frighten people when the weather is bad and never change your plans over a weather forecast in Florida ;-)
@@DaveCocchiarellaWinterPark thanks
I’m thinking about majoring in atmospheric science but I’m pretty nervous about the calculus and chemistry. Any advise? Btw awesome video!
You can do it!
Is this chapter for aspirant pilots as well?
It couldn’t hurt.
I've been on the internet since... 2008? And I today finally remembered I wanted to learn meteorology
That's great!
Hi Dave,thank you for this video.I'm a high school graduate and I love this video.But I'm a little bit confused about that illustration you provided at the end of this chapter.Why would the air converge and then diverge when passing through a upper level low?Definitely there are no visible lanes that we might see on a high way.
Hello, the troposphere is the lowest level of the atmosphere where 99% of all weather occurs. It averages about 11 miles deep, but varies in thickness due to average temperature throughout the column with warmer air creating a thick troposphere. The troposphere is bounded at the top by the tropopause, the air layer above the troposphere is the stratosphere. Air in the stratosphere gradually warms with height as the stratosphere contains most of the ozone. Because air temperatures warm with height, an inversion is created and the stratosphere is very stable (air does not move vertically) and acts like a lid on the troposphere. So air in the upper levels that is converging piles up, but it cannot rise because it is bounded by the tropopause, so it is forced down.
Wow! That is very detailed answer!Thank you very much!XD. But why would the air converge?Is it because the air pressure is lower so that the surrounding air is crowding into that "low area",thus making the air converge and the density greater?
Also,why would converging air forces air to go down?I remember my geography teacher in high school explained the air goes down because it is colder in the upper level sky so that the air gets colder so that the air converges and becomes heavier and then it drops down.I guess both of you and my teacher meant exactly the same thing,right?
Converging air at the upper levels will force downward motion. As the air converges, it piles up, but it cannot go up because it is limited by the tropopause, so it goes down. Convergence in the upper levels causes air to sink. Cold air also sinks as it is more dense.
Cold = less mass, more density
Warm = more mass, less density
This is why warm water has "thermal expansion", so the warmer an ocean gets the more sea levels rise. And why the downwelling in the northern Atlantic (AMOC, Atlantic Meridional Overturning Circulation) because it's already salty (which increases density) and turns cold as it goes northward, so therefore gains density, so it falls. Or why upwelling brings phytoplankton up that causes great ocean migrations, the warm water is low in density but high in mass, so it doesn't sink because the colder water below it is more dense.
The cold southward polar easterly winds that make the lower pressure "wall" between the Ferrel and Polar cells do something similar, they are more dense than the northwards warm westerlies from the Ferrel Cell so they push that warmer wind upwards creating a low pressure.
In the Troposphere higher gets colder (higher gets warmer in the Stratosphere), but there is less air because gravity causes a pull downwards (atoms and molecules do have mass after all), so the cold air converges and collects in density of that parcel of air.
Cold = less mass, more density
Warm = more mass, less density
This is why warm water has "thermal expansion", so the warmer an ocean gets the more sea levels rise. And why the downwelling in the northern Atlantic (AMOC, Atlantic Meridional Overturning Circulation) because it's already salty (which increases density) and turns cold as it goes northward, so therefore gains density, so it falls. Or why upwelling brings phytoplankton up that causes great ocean migrations, the warm water is low in density but high in mass, so it doesn't sink because the colder water below it is more dense.
The cold southward polar easterly winds that make the lower pressure "wall" between the Ferrel and Polar cells do something similar, they are more dense than the northwards warm westerlies from the Ferrel Cell so they push that warmer wind upwards creating a low pressure.
In the Troposphere higher gets colder (higher gets warmer in the Stratosphere), but there is less air because gravity causes a pull downwards (atoms and molecules do have mass after all), so the cold air converges and collects in density of that parcel of air.
Sir,
I'm not a science graduate but I'm very much interested in Meteorology. Is there any chance for me to do it, sir??
Absolutely, check out Mississippi State‘s broadcast Meteorology program, you can learn while you’re working in other aspects of broadcasting or in whatever job you have now. I started out in radio and one on my way into television Weather and Meteorology using that route it’s very successful for a lot of people in the business
@@DaveCocchiarellaWinterPark Sir
Thank you so much...
Is there any online program like this?
I’d love to go to college for this because I’ve always loved meteorology and climatology since I was a kid, but I feel like I’m already to old to go to school for it 😂(25) AND how often can people who study it get jobs in that field ?
I got my first job in weather when I was 32. Prior to that I had been a radio DJ. You can study weather and work in the field anytime.
@@DaveCocchiarellaWinterPark thank you for the Input 🥺🥺
I am 56 and just getting started. If 80 year old people in Congress can continue to ruin our country, then I can pursue Meteorology.
Please reupload this video again
I check the video on my end and it loads, can you see it?
Hello, I love the video and I am already thoroughly enganged in it. Might there possibly be any study packets to do along with this (if there is can you possibly link it to me). I love weather and the way it does its work. I have been looking here alot recently in meterology and is there any colleges around the Illinois area that might provide meterology? I also am a freshman in high school, so I have some time to look at colleges, and what I want to do but I really like meterology and I am hoping to get into that career. Thank you, if you can reply back.
I teach this class online at Valencia College in Orlando, FL. You can certainly enroll. Otherwise feel free to view the lectures.
Dave Cocchiarella Thank you very much.
Thank you!
You're welcome!
Thanks!
Thank you!
Why don't air molecules or clouds crash to earths floor if gravity is pulling it to earths inner core
Oohh good question... the high pressure at the surface (about 1000 mb) and the low pressure aloft (0 at the edge of space) actually create a sort of pressure gradient that works against the pull of gravity. This pressure is exerted in all directions: up, down, and to all sides. For equilibrium, the pressure exerted by an air parcel is exactly balanced by the downward force exerted by the overlying air pulled by gravity. This balance is known as hydrostatic equilibrium.
where is the escaoe velocity and molecular velocity mathematical calculation?
Ironically, think of it as clouds are sitting on clouds of air.
Ironically, think of it as clouds are sitting on clouds of air.
“TREEOS” or “Tiros”. You said the prior.
Continue again.
my only complaint is your still talking about space. i came here for a meteorology lecture.
Oh, I get to meteorology my friend... Thank you for watching
17:40 "And then the earth farted for a few million years"
Probably more like a few hundred million years
Hi Dave! I am Nehuen, from Argentine, and I am going to study for being a Meteorologist in UBA (Universidad of Buenos Aires) ! Thank you for the videos, and please, if you can share your profile it would be awesome!
Thanks for the video
www.linkedin.com/in/davecocchiarella/ facebook.com/DaveCocchiarellaWESH/ twitter.com/DaveCocchiarell
like they litty.!
sweet
i am a student from Kyrgistan
Thank you for watching, I hope it helped
👍🙏
you are welcome
Anyone looking for knowledge to become a Storm Chaser?
Same dude. I wanna be one whem I'm older, but I don't know what to do to become one
So everything just fell together in perfect balance from an explosion called the Big Bang without being created by a Creator? I've never seen any type of balance or order result from an explosion. As a matter fact, it's quite the opposite. Explosions are chaotic. Totally unreasonable to think the universe wasn't created.
Great perspective. With regards to the name "The Big Bang" Scientist at the time this name was assigned to the theory were being sarcastic as the thinking at the time was the idea was ridiculous. The name "Big Bang" was meant to be sarcastic. The theory suggests the Universe began with a rapid and very hot expansion from a single point. Certainly something a Creator could have a hand in starting. Consider this perspective: www.nbcnews.com/news/world/pope-francis-evolution-big-bang-theory-are-real-n235696 Ultimately, I respect your beliefs however the shape the Beginning - The Big Bang is simply the Theory scientist largely support today. What makes Good Science work is the ability to change when new data in introduced, and it is certainly possible scientist in the near or distant future will uncover data contradicting the current theory. If that happens, Good Science should be able to adapt new theories to the new data. Thank you for your input. dc
@@DaveCocchiarellaWinterPark The current scientists completely blew the Covid situtation. Maybe there are better ones.
🙄 If you've never seen balance or order resulting from an explosion then how did WW2 end?
🙄 If you've never seen balance or order resulting from an explosion then how did WW2 end?
So basically is what he's saying is this. You can be an adult and learn what is or you can be a child and believe in the Easter Bunny. Make a decision.
Diehold foundation
weather 101 starts out with history of meteorology wastes half the entire video on the the big bang pseudoscience lie...
Thanks for your input.
You don't just get to call anything you don't like "psuedoscience" because it conflicts with your ignorance, collect evidence for your hypothesis and submit it to a legitimate peer reviewed journal so it can get torn apart by others. If it stands after decades of attacks and cross correlating evidences like the Big Bang Theory than maybe it will deserve the right to be a generally accepted hypothesis.
You don't just get to call anything you don't like "psuedoscience" because it conflicts with your ignorance, collect evidence for your hypothesis and submit it to a legitimate peer reviewed journal so it can get torn apart by others. If it stands after decades of attacks and cross correlating evidences like the Big Bang Theory than maybe it will deserve the right to be a generally accepted hypothesis.
Tendon balls
www.npr.org/2022/06/17/1105970804/helium-prices-are-blowing-up-heres-what-is-causing-the-increase
Yeah star dust....it makes sense but you forgot life
If it conflicts with your particular faith, please GTFO.