Station noise level for continous seed data

Hi all,
I am new to obspy, I have 24hrs long seed data of a particular station ( along with the .XML,dataless seed and meta data files).

I would like to obtain the noise level (using PSD) of the stations by considering all the components together and for individual components. For this, I would like to consider the 24 hr data with a period of 1 hr and 3 hr.

Could anyone help me with this?