How to apply a For loop for climatology time series analysis?

I will use wind data to calculate along shore windstress for 20 years and I need to plot that for five locations in northern Indian ocean. Along shore wind stress will be used to identify the upwelling regions and upwelling intensification. The following equation will be used for calculate alongshore windstress.

Ʈl = ρa*Cd*Vl [(Wx)2 + (Wy)2]1/2

Where,

Ʈl = alongshore wind stress

ρa= air density

Cd = drag coefficient

Wx = zonal wind component

Wy = meridional wind component

Vl = upwelling favorable wind

Vl = - [lat/abs(lat)] [WxCos (θ - π/2) + WySin(θ - π/2)]

where,

Lat = latitude

abs = absolute value

θ = angle defined by an unitary vector normal to the shoreline and pointing seaward

I am going to use for loop for above equation and the data is in 20 netcdf files. I wanted to know, how to apply monthly mean wind data in a for loop and get the plot?

Answer 1

[KSSV]

Read about retime.

If not, also you can calculate the mean you want using mean.