I am studying Meteorology for my CPL exams, and taking EASA's 2020 Learning Objectives as a guideline for the topics I have to study.
In the topic of local winds, there are subtopics for Anabatic & Katabatic Winds and Mountain & Valley Winds (
050.02.04.01.02 in the screenshot below).
The book I am primarily using does not mention anything about Mountain & Valley winds and I have searched the internet and the only thing closer to the Mountain and Valley Winds I could find were the Mountain and Valley Breezes, which I am assuming refer to the same phenomenon.
The problem, however is that some resources say that Mountain Breeze and Katabatic Winds are the same:
...however, some online resources categorically say that they are different, but no further explanation is provided except that Anabatic and Katabatic Winds are on much larger scale than Valley and Mountain Winds:
The origin of Anabatic and Valley winds are similar:
Slope of hill warms up due to more direct insolation to mountain side than the valley floor, leading to air on the slope being warmer and less dense than the air in the valley. Air on the mountain slope rises up and cold air in the valley replaces the rising air
Similarly, the formation mechanism for Katabatic Winds and Mountain Winds are also similar:
At night the ground will cool more quickly and becomes colder than the air above. Air in contact with the ground cools. This now denser air slides downslope and moves into the valleys.
So my question is What makes Anabatic and Katabatic Winds differ from Valley and Mountain Winds? Since their formation mechanisms are the same, what makes Anabatic and Katabatic larger and stronger?
P.S. I realize that the resources that I have shared are not very reliable and can contain inaccurate information. However, I couldn't find any reliable resource which dealt with and compared both phenomenons