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Manual on Stream Gauging, Vol. I: Fieldwork
The Manual on Stream Gauging (WMO No. 519) was first released in 1980. Since then, however, there have been significant advances both in the approach and the methodologies employed.
Consequently, at its twelfth session (Geneva, October 2004), the WMO Commission for Hydrology (CHy) decided to meet the identified needs of the National Hydrological Services by revising the Manual to include the newer technologies that have been introduced over the period and are currently employed in this crucial field.
In this context, Volume I of the Manual on Stream Gauging encompasses the topics ...
Streamflow Routing: International Edition
Streamflow routing provides a set of methods for describing and predicting the movement of water from one point to another along a river. Typically, this process involves predicting the shape of a hydrograph downstream from a particular location in a channel, reservoir, or lake. This first requires an understanding of the basic flow regimes and how water is stored and released within a channel. From there, information and calculations based on flow and channel bed characteristics are implemented in hydrologic routing methods, which are storage-based, and hydraulic routing methods, which utiliz ...
Unit Hydrograph Theory: International Edition
The role of unit hydrograph theory in the flood prediction process is to provide an estimate of streamflow that results from a given amount precipitation. A unit hydrograph shows the temporal change in flow, or discharge, per excess unit of precipitation runoff. This module offers a thorough introduction to the use of unit hydrographs and the application of unit hydrograph theory in flood prediction. Key terminology and assumptions, the process of creating a unit hydrograph and application of unit hydrograph theory to forecast situations are all explored through comprehensive animations and in ...
Flood Frequency Analysis: International Edition
Flood frequency analysis uses historical flow records to both estimate the frequency with which floods of a certain magnitude may occur and predict the possible flood magnitude over a certain time period. This module offers a thorough introduction to appropriately constructing the necessary historical data series, calculating the flooding probabilities, and gauging the reliability of the resulting probability values. Methods for assessing flood frequency in basins with limited data are also discussed.
Distributed Hydrologic Models for Flow Forecasts - Part 2
Distributed Hydrologic Models for Flow Forecasts Part 2 is the second release in a two-part series focused on the science of distributed models and their applicability to different flow forecasting situations. Presented by Dr. Dennis Johnson, the module provides a more detailed look at the processes and mechanisms involved in distributed hydrologic models. It examines the rainfall/runoff component, snowmelt, overland flow routing, and channel response in a basin as represented in a distributed model. Calibration issues and situations in which distributed hydrologic models might be most appropr ...
River Ice Processes - Short Version
This module provides information on flooding associated with river ice jams. Based on a presentation by Dr. Kate White, a nationally-recognized expert on river ice, this webcast explores basic river ice processes including the formation, growth, breakup, and transport of river ice and how it can become jammed, triggering floods. This shorter version of the previously published module "River Ice Processes", has less focus on the US National Weather Service, making it more broadly applicable, including to an international audience.
Understanding the Hydrologic Cycle: International Edition
This module helps students gain a basic understanding of the elements of the hydrologic cycle. The hydrologic cycle is the continuous movement and phase change of liquid water, ice, and water vapor above, on, under and through the earth's surface. This module examines the basic concepts of the hydrologic cycle including water distribution, atmospheric water, surface water, groundwater, and snowpack/snowmelt.
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Manual on Stream Gauging
The Manual on Stream Gauging (WMO No. 519) was first released in 1980. Since then, however, there have been significant advances both in the approach and the methodologies employed.
Consequently, at its twelfth session (Geneva, October 2004), the WMO Commission for Hydrology (CHy) decided to meet the identified needs of the National Hydrological Services by revising the Manual to include the newer technologies that have been introduced over the period and are currently employed in this crucial field.
In this context, Volume I of the Manual on Stream Gauging encompasses the topics ...
Manual on Stream Gauging, Vol. II: Computation of discharge
The Manual on Stream Gauging (WMO No. 519) was first released in 1980. Since then, however, there have been significant advances both in the approach and the methodologies employed.
Consequently, at its twelfth session (Geneva, October 2004), the WMO Commission for Hydrology (CHy) decided to meet the identified needs of the National Hydrological Services by revising the Manual to include the newer technologies that have been introduced over the period and are currently employed in this crucial field.
In this context, Volume I of the Manual on Stream Gauging encompasses the topics ...
Guide to Hydrological Practices, Volume II : Management of Water Resources and Applications of Hydrological Practices
This comprehensive guide provides practicing hydrologists with handy access to state-of-the-art and reliable information on hydrological practices, from simple discharge measurement to modeling complex hydrological systems. It was first published in 1965 and has been regularly updated since to reflect the evolving needs of, and practices employed by, the National Hydrological Services and other professionals working in water related fields.
Руководство по гидрологической практике: Том II - Управление водными ресурсами и практика применения гидрологических методов
Цель Руководства по гидрологической практике состоит в предоставлении соответствующей информации для всех экспертов, работающих в области гидрологии, о существующих правилах, процедурах и оборудова- нии, необходимых для обеспечения их успешной дея- тельности. Полное изложение теоретических основ и всего спектра применений гидрологических методов и оборудования выходит за рамки основных задач нас- тоящего Руководства. Однако в соответствующих слу- чаях даются ссылки на необходимую литературу. Более детализированные процедуры мониторинга гидроло- гических параметров рассматриваются в с ...
Guía de prácticas hidrológicas Volumen II: Gestión de recursos hídricos y aplicación de prácticas hidrológicas
La Guia de practicas hidrologicas tiene por objeto aportar informacion sobre las practicas, procedimientos e instrumentos actualmente utilizados a quienes se dedican a la hidrologia.
Esperamos que la presente Guia sea util no solo a los SHN de los Miembros de la OMM, sino tambien a otras partes interesadas y organismos que participan en la gestion de los recursos hidricos y, en particular, en el seguimiento y evaluaction de tales recursos.
Jason-2: Using Satellite Altimetry to Monitor the Ocean
Altimeters onboard satellites such as Jason-2 measure sea surface height and other characteristics of the ocean surface. These characteristics are linked to underlying processes and structures, making altimetry data useful for understanding the full depth of the global ocean. This 75-minute module explores major discoveries made possible by altimetry data in oceanography, marine meteorology, the marine geosciences, climate studies, the cryosphere, and hydrology. For example, altimeters have played a vital role in detecting and monitoring sea level rise and its relation to climate change. The m ...
Distributed Hydrologic Models for Flow Forecasts - Part 1
Distributed Hydrologic Models for Flow Forecasts – Part 1 provides a basic description of distributed hydrologic models and how they work. This module is the first in a two-part series focused on the science of distributed models and their applicability in different situations. Presented by Dr. Dennis Johnson, the module begins with a review of hydrologic models, and then examines the differences between lumped and distributed models. It explains how lumped models may be distributed by subdividing the basin and suggests when distributed hydrologic models are most appropriate. Other topics cove ...
Guide des pratiques hydrologiques, volume II - Gestion des ressources en eau et application des pratiques hydrologiques
Le Guide des pratiques hydrologiques a pour but de fournir a tous ceux qui travaillent dans le domaine de l’hydrologie, les informations pertinentes sur les pratiques, procédures et instruments actuels, leur permettant ainsi d’effectuer leur travail avec plus de succès. On espère que le présent ouvrage soit utile non seulement aux Services nationaux des Membres mais aussi aux divers autres intervenants et organismes impliqués dans la gestion des ressources en eau en général, et en particulier dans le suivi et l’estimation de ces ressources.
Manual on estimation of Probable Maximum Precipitation (PMP)
The manual describes procedure for estimating the maximum probable precipitation and the maximum probable flood. This is the third revised version.
The first and second editions of this manual were published in 1973 and 1986, respectively. The current edition keeps a majority of the content from the second edition. Newly added content in this third edition primarily results from experiences, since 1986, in directly estimating PMP for the requirements of a given project in a design watershed on probable maximum flood (PMF) in China, the United States of America, Australia and India.
GCOS, 135. Report of the 4th GTN-H Coordination Panel Meeting
World Meteorological Organization (WMO) ; United Nations Environment Programme (UNEP); Intergovernmental Oceanographic Commission (IOC) - WMO, 2009 (WMO/TD-No. 1511)
Vol. 57 (3) - July 2008 - Hydrology for water management
This issue of the Bulletin commemorates the establishment of WMO's Commission for Hydrology (CHy) 50 years ago, whose ultimate goal is to promote the effective use of hydrology by assisting National Hydrological Services to delivery of their services. The initial and final articles are dedicated to CHY's history and future, while the core articles analyse the current situation in water resources management from different perspectives.
Guide to Hydrological Practices, Volume I : Hydrology – From Measurement to Hydrological Information
This comprehensive guide provides practicing hydrologists with handy access to state-of-the-art and reliable information on hydrological practices, from simple discharge measurement to modeling complex hydrological systems. It was first published in 1965 and has been regularly updated since to reflect the evolving needs of, and practices employed by, the National Hydrological Services and other professionals working in water related fields.
Руководство по гидрологической практике: Том I - Гидрология: от измерений до гидрологической информации
Цель Руководства по гидрологической практике состоит в предоставлении соответствующей информации для всех экспертов, работающих в области гидрологии, о существующих правилах, процедурах и оборудова- нии, необходимых для обеспечения их успешной дея- тельности. Полное изложение теоретических основ и всего спектра применений гидрологических методов и оборудования выходит за рамки основных задач нас- тоящего Руководства. Однако в соответствующих слу- чаях даются ссылки на необходимую литературу. Более детализированные процедуры мониторинга гидроло- гических параметров рассматриваются в с ...
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