Thank you so much for all the effort you put into these videos Grant, these are by far the best ATPL videos out there and are a massive help. Also fun fact, "Föhn" is also the German word for hair dryer, which was named after the wind due to it being hot and dry (maybe helpful in case someone is struggling to remember the properties of a Fohn, just think of a hair dryer). Good luck on your exams everyone!
Dear Grant! One again thousand thank yous to you my friend! You are making a huge impact and you are amazing help to us all! Thank you God bless and please keep up this amazing work
Thank you for the classes. I’m doing self study and it’s very difficult to understand the theory text book. Your explanation of the subject is making everything easier. Also thank you for removing the background music.
I’ve just started sailing and thought your videos would help me understand meteorology a little better. I’m absolutely horrified to find that not only are your videos informative and interesting I actually enjoy watching them. 😮 Am I becoming a nerd? 😢
Hello Thx for the interesting video :) One question: you mentioned that during the sea breeze (03:50) the wind will be deflected due to the geostrophic component . But the way I learned it there is no geostrophic wind in the friction / boundary layer and the geostrophic wind is an upper wind wich develops over the friction layer. The reason for the wind to turn when it hits the land ist mainly due to the friction wind ratio and the friction force and the Coriolis force. Would be interested in your opinion :) Greetings
You're correct. The geostrophic wind is an upper wind. The geostrophic force (Coriolis force) is still felt within the boundary layer a bit and will grow in strength as we move further and further away from the land eventually becoming the geostrophic wind you are talking about. So, the sea breeze will still come in at a slight angle because of the geostrophic as well as the friction force.
thank you for the video, it's really helpful! I have a question: In the valley wind, the wind is stronger than the surroundings and that's ok, but I got a question in an Exam that asked if the true altitude was higher or lower in relation to the air before and after the valley. Do you know the possible answer?
It's hard to tell without seeing the question tbh. Although, If we think about the concept that total pressure = dynamic pressure + static pressure then the faster flowing air in the valley would mean a higher dynamic pressure proportion and a lower static pressure proportion. That will create a "dip" in the pressure levels so in order to keep flying at the same indicated altitude and keep our altitude reading the same we would need to fly up and therefore the true altitude would be higher. It's hard to explain without diagrams and when in doubt remember "draw the f**king picture".
![Seungmin "그렇게, 천천히, 우리(As we are)" | [Stray Kids : SKZ-PLAYER]](http://i.ytimg.com/vi/kAzmhLHePqU/mqdefault.jpg)
![BLACK BAG - Official Trailer [HD] - Only in Theaters March 14](http://i.ytimg.com/vi/Du0Xp8WX_7I/mqdefault.jpg)
Thank you so much for all the effort you put into these videos Grant, these are by far the best ATPL videos out there and are a massive help.
Also fun fact, "Föhn" is also the German word for hair dryer, which was named after the wind due to it being hot and dry (maybe helpful in case someone is struggling to remember the properties of a Fohn, just think of a hair dryer).
Good luck on your exams everyone!
Wow, thanks!
You are gifted in how well you can explain things
Dear Grant! One again thousand thank yous to you my friend! You are making a huge impact and you are amazing help to us all! Thank you God bless and please keep up this amazing work
Thank you for the classes. I’m doing self study and it’s very difficult to understand the theory text book. Your explanation of the subject is making everything easier. Also thank you for removing the background music.
Glad it was helpful!
I’ve just started sailing and thought your videos would help me understand meteorology a little better. I’m absolutely horrified to find that not only are your videos informative and interesting I actually enjoy watching them. 😮
Am I becoming a nerd? 😢
Unfortunately yes, AVGEEK in training
Hello Thx for the interesting video :)
One question: you mentioned that during the sea breeze (03:50) the wind will be deflected due to the geostrophic component . But the way I learned it there is no geostrophic wind in the friction / boundary layer and the geostrophic wind is an upper wind wich develops over the friction layer. The reason for the wind to turn when it hits the land ist mainly due to the friction wind ratio and the friction force and the Coriolis force.
Would be interested in your opinion :)
Greetings
You're correct. The geostrophic wind is an upper wind.
The geostrophic force (Coriolis force) is still felt within the boundary layer a bit and will grow in strength as we move further and further away from the land eventually becoming the geostrophic wind you are talking about. So, the sea breeze will still come in at a slight angle because of the geostrophic as well as the friction force.
Can you do next series for Performance please!!
Thank you for your help! Can you do Performance next?
Most likely performance or radio nav will be next based on the comments. I will put a poll up about it so make sure to vote!
Radio Navigation please:)
thank you for the video, it's really helpful! I have a question: In the valley wind, the wind is stronger than the surroundings and that's ok, but I got a question in an Exam that asked if the true altitude was higher or lower in relation to the air before and after the valley. Do you know the possible answer?
It's hard to tell without seeing the question tbh.
Although, If we think about the concept that total pressure = dynamic pressure + static pressure then the faster flowing air in the valley would mean a higher dynamic pressure proportion and a lower static pressure proportion. That will create a "dip" in the pressure levels so in order to keep flying at the same indicated altitude and keep our altitude reading the same we would need to fly up and therefore the true altitude would be higher.
It's hard to explain without diagrams and when in doubt remember "draw the f**king picture".
Why not jet stream exists at the equator?
TIP: you should have gone more in depth on the jetstreams as this is a pretty severe subject with a lot of information. You missed a lot of parts
This isn't a full course, this is just a bit of extra help so you should go and study the topics more if you think there is details missing.
First