Dear Colleagues,
I work with rainfall intensity data from the early decades of the 1900s. These measures were carried out by a Hellmann-Fuess rainfall recorder. I would like to know something about the accuracy (at least an estimated accuracy) of the device, the family of this device, but I can't find any paper about it.
I would be happy for a good (paper-based) estimation of the accuracy, a possibly needed correction. Any assistance can be essential to me.
Thanks for it anticipate.