Standard Article

1 On the Fundamentals of Hydrological Sciences

Part 1. Theory, Organization and Scale

  1. Günter Blöschl

Published Online: 15 APR 2006

DOI: 10.1002/0470848944.hsa001a

Encyclopedia of Hydrological Sciences

Encyclopedia of Hydrological Sciences

How to Cite

Blöschl, G. 2006. On the Fundamentals of Hydrological Sciences. Encyclopedia of Hydrological Sciences. 1:1.

Author Information

  1. Institute for Hydraulic and Water Resources Engineering, Vienna University of Technology, Vienna, Austria

Publication History

  1. Published Online: 15 APR 2006


Although there is no universal theory in hydrology that starts from first principles, the various branches of hydrology show numerous common threads. They relate to the nature of the processes including their space–time variability, the general principles of hydrological measurements, and the types of methods for representing hydrological processes in a quantitative way, either statistically or deterministically. The purpose of this article is to provide some common ground for this Encyclopedia to highlight the particularities of the hydrological sciences.


  • organization;
  • basic equations;
  • measurements;
  • self similarity;
  • upscaling;
  • model concepts;
  • feedbacks;
  • theory