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Outline of Hydrology
outline is provided as an overview of and topical guide to hydrology:
Hydrology – study of the movement, distribution, and quality of water on Earth and other planets, including the hydrologic cycle, water resources and environmental watershed sustainability.
What type of thing is hydrology?
Hydrology can be described as all of the following:
Essence of hydrology
Branches of hydrology
Hydrometry – the measurement of the different components of the hydrologic cycle
Chemical hydrology – the study of the chemical characteristics of water
Ecohydrology – the study of interactions between organisms and the hydrologic cycle
Hydrogeology – the study of the presence and movement of water in aquifers
Hydroinformatics – the adaptation of information technology to hydrology and water resources applications
Hydrometeorology – the study of the transfer of water and energy between land and water body surfaces and the lower atmosphere
Isotope hydrology – the study of the isotopic signatures of water
Surface hydrology – the study of hydrologic processes that operate at or near the Earth's surface
Catchment hydrology – study of the governing processes in a given hydrologically-defined catchment
Drainage basin management – covers water-storage, in the form of reservoirs, and flood-protection. Water quality – includes the chemistry of water in rivers and lakes, both of pollutants and natural solutes.
History of hydrology
History of hydrology
Things studied by hydrology
Abstract concepts in hydrology
Phenomena studied by hydrology
Water movement pathways
Water cycle (aka "hydrological cycle")
Physical things studied by hydrology
Piezometer - groundwater pressure and, by inference, groundwater depth (see: aquifer test) Conductivity, storativity, transmisivity
Geophysical methods Vadose zone characterization
Surface water 
Rain gauge – rainfall depth ( unit) and intensity ( unit time) −1
Disdrometer – raindrop size, total precipitation depth and intensity
Doppler weather radar – raindrop size, total precipitation depth and intensity, rain cloud reflectivity converted to precipitation intensity through calibration to rain gauges Wind profiler – precipitation vertical and horizontal motion, vertical cross-section of reflectivity and typing Frozen precipitation (on ground) Mean windspeed and direction Water vapor transfer method
Soil/porous media 
Disc permeameter – measures soil hydraulic conductivity
Rainfall simulator – measures output through the application of constant input ("rain") in a sealed area Slug test – addition or removal of water and monitors the time until return to predisturbance level
Piezometer – Soil moisture content (water volume percentage)
Water quality  Bed load
Hydrological transport model
Applications of hydrology
Some examples of applications of hydrology:
International research bodies
National research bodies
Centre for Ecology and Hydrology - UK  Centre for Water Science, Cranfield University, UK
 eawag - aquatic research, ETH Zürich, Switzerland
 Institute of Hydrology, Albert-Ludwigs-University of Freiburg, Germany
United States Geological Survey - Water Resources of the United States 
NOAA's National Weather Service - Office of Hydrologic Development, USA 
US Army Corps of Engineers Hydrologic Engineering Center, USA 
Hydrologic Research Center, USA  NOAA Economics and Social Sciences, USA
 University of Oklahoma Center for Natural Hazards and Disasters Research, USA
National Hydrology Research Centre, Canada  National Institute of Hydrology, India 
National and international societies
Basin- and catchment-wide overviews Connected Waters Initiative, University of New South Wales
- Investigating and raising awareness of groundwater and water resource issues in Australia  Murray Darling Basin Initiative, Department of Environment and Heritage, Australia 
Persons influential in the field of hydrology
Drainage basins by area – largest hydrologically defined watersheds in the world
Floods – chronological and geographic list of major floods worldwide Waterways – worldwide listing of waterbodies classified as rivers, canals, estuarys, and firths
See also Other water-related fields
Oceanography – more general study of water in the oceans and estuaries.
Meteorology – more general study of the atmosphere and of weather, including precipitation as snow and rainfall.
Limnology – study of inland waters (running and standing waters, both fresh and saline, natural or man-made), including their biological, chemical, physical, geological, and other attributes. This includes the study of lakes and ponds, rivers, springs, streams and wetlands.  Water resources – sources of water that are useful or potentially useful. Hydrology studies the availability of those resources, but usually not their uses.
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Western, Andrew W. (2005). "Principles of Hydrological Measurements". In Anderson, Malcolm G. Encyclopedia of Hydrological Sciences. 1. West Sussex, England: John Wiley & Sons Inc. pp. 75-94.
Shuttleworth, W. James (January-February 2008). "Evapotranspiration Measurement Methods" (PDF). Southwest Hydrology. Tucson, AZ. 7 (1): 22-23 . Retrieved .
"International Hydrological Programme (IHP)". IHP . Retrieved 2013.
"International Water Management Institute (IWMI)". IWMI . Retrieved 2013.
"UNESCO-IHE Institute for Water Education". UNIESCO-IHE . Retrieved 2013.
"CEH Website". Centre for Ecology & Hydrology . Retrieved 2013.
"Cranfield Water Science Institute". Cranfield University . Retrieved 2013.
"Eawag aquatic research". Swiss Federal Institute of Aquatic Science and Technology. 25 January 2012 . Retrieved 2013.
"Professur für Hydrologie". University of Freiburg. 23 February 2010 . Retrieved 2013.
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"NOAA Economics and Social Sciences". NOAA Office of Program Planning and Integration. Archived from the original on 25 July 2011 . Retrieved 2013.
"Center for Natural Hazard and Disasters Research". University of Oklahoma. 17 June 2008. Archived from the original on 24 May 2013 . Retrieved 2013.
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"Hydrogeology Division". The Geological Society of America. 10 September 2011 . Retrieved 2013.
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"American Water Resources Association". 2 January 2012 . Retrieved 2013.
"CUAHSI" . Retrieved 2013.
"International Association of Hydrological Sciences (IAHS)". Associations. International Union of Geodesy and Geophysics. 1 December 2008 . Retrieved 2013.
"International Association of Hydrological Sciences" . Retrieved 2013.
"International Commission on Statistical Hydrology". STAHY . Retrieved 2013.
Deutsche Hydrologische Gesellschaft, accessed 2 September 2013
Nordic Association for Hydrology, accessed 2 September 2013
"The British Hydrological Society" . Retrieved 2013.
[Hydrological Commission] (in Russian). Russian Geographical Society. Archived from the original on 26 August 2013 . Retrieved 2013.
"Hydroweb". The International Association for Environmental Hydrology . Retrieved 2013.
"International Association of Hydrogeologists" . Retrieved 2014.
"Connected Waters Initiative (CWI)". University of New South Wales . Retrieved 2013.
"Integrated Water Resource Management in Australia: Case studies - Murray-Darling Basin initiative". Australian Government, Department of the Environment. Australian Government . Retrieved 2014.
^ Wetzel, R.G. (2001)
Limnology: Lake and River Ecosystems, 3rd ed. Academic Press. ISBN 0-12-744760-1