hi Voko,
I finally had time to finish the program. I used simple equations of motion (#12). The result in my opinion is very good. Figure 2 show the result (using the equations), figure 1 show the true path measured by sensors on the surface (while radiosonde is in the air). This is just one...
Hi Voko, I received an email from Vaisala (vendors of radiosonde RS92-SGP) saying that the radiosonde winds are relative to the Earth's surface and taken from the velocities of the moving freely radiosonde. After this response I will try the aproximate solution in #12.
I will compare the path...
The winds are determined by observing the drift of the balloon.
There are two classes:
The first class of wind measurement techniques tracks the balloon externally using one of three
methods:
(1) optical systems use a theodolite to visually track the balloon’s azimuth and elevation;
(2)...
Upper-air winds (horizontal wind speed and direction) are determined during radiosonde ascents by measuring the position of the radiosonde relative to the Earth's surface as the balloon ascends. By measuring the position of the balloon with respect to time and altitude, wind vectors can be...
Hi Voko,
when I said, I would not need to integrate in z, it is because I do not have the wind speed in the vertical direction.
I have for several altitudes the wind direction and speed (horizontal). You can see an example in the attached file.
Thank you for your help.
Hello Voko,
if I understand correctly your answer, in this way I can determine the acceleration of the radiosonde, I should integrate this equation 2 times to determine the equation of motion in x and y (z is not needed). But this is not an easy task, there are other ways?
Hello to all,
If you know the direction, wind speed, altitude and weight of the radiosonde (values varies by altitude), it is possible to know the approximate track that the radiosonde does?
I have other values such as temperature, pressure, relative humidity and other.
Anyone knows...