Abstract. After describing the hydrological cycle and defining hydrology in the introduction, the early historical development of hydrology is briefly presented in the second section. Then the incorporation of hydrology within the IUGG and the subsequent development of the association are described chronologically. This description is organized into five sections corresponding to five different periods, focused on the scientific and organizational development of the association during each period. Finally, in the conclusions, the present state of the association is discussed together with an outlook for the future.

中文翻译：

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IAHS：水文学简史

摘要。在引言中描述了水文循环并定义了水文学之后，第二部分简要介绍了水文学的早期历史发展。然后按时间顺序描述了水文学在IUGG内的合并以及该协会的后续发展。此说明分为五个部分，分别对应五个不同的时期，着重于每个时期协会的科学和组织发展。最后，在结论中，讨论了协会的现状以及对未来的展望。