61. TauDEM Terrain Analysis Using Digital Elevation Models Garbrecht, J. and L. W. Martz, (1997), The Assignment of Drainage Direction Over Flat Surfaces in Raster Digital Elevation Models, Journal of hydrology, http://hydrology.neng.usu.edu/taudem/

Terrain Analysis Using Digital Elevation Models (TauDEM) David G. Tarboton May, 2005 Utah State University 4110 Old Main Hill Logan, UT 84322-8200 USA http://www.engineering.usu.edu/dtarb/ TauDEM (Terrain Analysis Using Digital Elevation Models) is a set of tools for the analysis of terrain using digital elevation models. It incorporates programs and digital elevation model (DEM) analysis functions developed over several years of research. TauDEM is currently packaged as an extendable component (toolbar plugin) to both ESRI ArcGIS (8.x and 9.0) and MapWindow , a free GIS data viewer developed at Utah State University. Download and installation * Usage Notes and Limitations * Overview Interface ... Acknowledgements David Tarboton Utah State University This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License version 2, 1991 as published by the Free Software Foundation. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

62. Hydrology Chapter Complete hydrology Chapter. hydrology Chapter (6.6 MB). hydrology Chapter by Section, Search for Additional (or Related) Learning Activities Through. http://www.globe.gov/tctg/tgchapter.jsp?sectionId=143

63. Hydrology Primer hydrology has evolved as a science in response to the need to understand the complex water systems of the earth and help solve water problems. http://ut.water.usgs.gov/infores/hydrology.primer.html

Hydrology Primer Table of Contents Introduction Water and People What is Hydrology? What Do Hydrologists Do? ... Source: Introduction Water and People What is Hydrology? What Do Hydrologists Do? Surface Water Most cities meet their needs for water by withdrawing it from the nearest river, lake or reservoir. Hydrologists help cities by collecting and analyzing the data needed to predict how much water is available from local supplies and whether it will be sufficient to meet the city's projected future needs. To do this, hydrologists study records of rainfall, snowpack depths and river flows that are collected and compiled by hydrologists in various government, agencies. They inventory the extent river flow already is being used by others. Managing reservoirs can be quite complex, because they generally serve many purposes. Reservoirs increase the reliability of local water supplies. Hydrologists use topographic maps and aerial photographs to determine where the reservoir shorelines will be and to calculate reservoir depths and storage capacity. This work ensures that, even at maximum capacity, no highways, railroads or homes would be flooded. Deciding how much water to release and how much to store depends upon the time of year, flow predictions for the next several months, and the needs of irrigators and cities as well as downstream water-users that rely on the reservoir. If the reservoir also is used for recreation or for generation of hydroelectric power, those requirements must be considered. Decisions must be coordinated with other reservoir managers along the river. Hydrologists collect the necessary information, enter it into a computer, and run computer models to predict the results under various operating strategies. On the basis of these studies, reservoir managers can make the best decision for those involved.

64. Nps Nature Science Water Resources Hydrology www.nature.nps.gov/water/hydrology.cfm Similar pages HESSD - Papers in Open DiscussionIsotope hydrology of dripwaters in a Scottish cave and implications for Impacts of ditch cleaning on hydrological processes in a drained peatland forest http://www.nature.nps.gov/water/hydrology.cfm

65. Welcome To The GGFC Hydrology Bureau The Global Geophysical Fluids Center (GGFC) was established by the International Earth Rotation Service (IERS) on IERS s 10th anniversary day January 1, http://www.csr.utexas.edu/research/ggfc/

Comments: chen-at-csr.utexas.edu Website Curator: Jianli Chen Last updated: Nov. 17, 2006 Introduction: The Global Geophysical Fluids Center ( GGFC ) was established by the International Earth Rotation Service, now the International Earth Rotation and Reference Systems Service ( IERS ) on IERS's 10th anniversary day January 1, 1998, in an effort to expand IERS's services to the scientific community. Under GGFC, eight Special Bureaus (SB) were selected, each to be responsible for research activities relating to a specific Earth component or aspect of the geophysical fluids of the Earth system. The Special Bureau for Hydrology ( SBH ) is responsible to coordinate research activities related to continental water. The main goals are: To collect and distribute data sets and numerical model results related to the changing distribution of water over the planet, especially over land, that are of interest to the geodetic community. Geodetically interesting applications include estimating changes in the gravity field, geocenter, earth rotation, and load deformation of geodetic sites. These variations are of direct interest to the International Earth Rotation Service and the community which it serves in the interpretation of earth rotation changes, improved definition of the terrestrial reference frame, and improvements in the quality of geodetic observations. To focus on data sets and model results which provide generally complete global measures of water mass redistribution. Regional or continental scale data sets may be of some interest, but the main focus will be global.

66. Redirecting This site is a gateway to an evolving global observing system for hydrological data, known as the Global Terrestrial Network for hydrology, or GTNH. The http://gtn-h.unh.edu/

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67. NASA Hydrological Sciences Branch - Code 614.3 The web site of the Hydrological Sciences Branch Code 614.3, a Branch of NASA s Hydrospheric and Biospheric Sciences Laboratory at NASA s Goddard Space http://lshp.gsfc.nasa.gov/

This page has moved. If this page doesn't redirect you within 5 seconds, click here

68. National Weather Service - Office Of Hydrologic Development The Advanced Hydrologic Prediction Service (AHPS) provides new information and products provided through the infusion of new science and technology. http://www.weather.gov/oh/

www.nws.noaa.gov Home Site Map News ... Organization Search NWS All NOAA Local forecast by "City, St" Search by city or zip code. Press enter or select the go button to submit request Front Office OHD Organization Activities Advanced Hydrologic Prediction Service RFC Development Management Hydrology Laboratory The Hydrology XML Consortium (HydroXC) ... Community Hydrologic Prediction System (CHPS) NWS Hydrology Precipitation Frequency / PMP Current and Historical Information Data Systems Documentation ... Additional Links Contact Us OHD Management The Office of Hydrologic Development (OHD) enhances National Weather Service (NWS) products by: infusing new hydrologic science developing hydrologic techniques for operational use managing hydrologic development by NWS field offices providing advanced hydrologic products to meet needs identified by NWS customers The OHD leads the following activities to accomplish its goals: Advanced Hydrologic Prediction Service (AHPS) The Advanced Hydrologic Prediction Service (AHPS) provides new information and products provided through the infusion of new science and technology. This service improves flood warnings and water resource forecasts to meet diverse and changing customer needs. Planning, Programming, and Coordination (PPC) Group

69. Drought Conditions Hydrologic Information Center National Weather Service 1325 East West Highway Silver Spring, MD 20910, Contact Us 301713-1630 hic@noaa.gov http://www.nws.noaa.gov/oh/hic/current/drought/

weather.gov Site Map News Organization Search Current Flooding Outlooks Hydrologic ... Home Drought Drought statements issued by NWS Forecast Offices: Riverton, WY Rapid City, SD North Platte, NE Goodland, KS ... Information* Maps Providing Drought Information 1.NOAA's Drought Information Center 2. Drought Monitor 3.Water Supply 4.National Resources ... U.S. Drought Monitor Map and text specifying drought conditions in the U.S. Seasonal Drought Outlook Provides indications of drought trends over a 3-month period Weekly Precipitation Precipitation totals for the most recent week ending on Saturday Keech-Byrum Drought Index Provides a measure of wildfire risk Crop Moisture Index Generally indicative of shorter-term drought conditions (days-weeks) Palmer Drought Severity Index Generally indicative of longer-term drought conditions (months) *Site Information 1. A roundup of the various NOAA Web sites and information on drought and climate conditions 2. Site is a collaborative effort among Federal and non-Federal agencies to provide a centralized source of drought information 3. Information on water resources and outlooks

70. Science In Your Watershed - General Introduction And Hydrologic Definitions Hydrologic techniques, capably applied, are essential for the sound development and management of water resources. The population of our country is http://water.usgs.gov/wsc/glossary.html

USGS Home Contact USGS Search USGS Science In Your Watershed Home Locate Watersheds Links By Watershed Information Discovery: Active projects Databases Publications Reports ... Education Case Studies: Analysis Assessment Characterization Management Geographic Information: GIS GIS Education GIS Software Customer service ... Search USGS Science in Your Watershed General Introduction and Hydrologic Definitions W. B. LANGBEIN and KATHLEEN T.ISERI Manual of Hydrology: Part 1. General Surface-Water Techniques GEOLOGICAL SURVEY WATER-SUPPLY PAPER 1541-A Methods and practices of the Geological Survey UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON: 1960 UNITED STATES DEPARTMENT OF THE INTERIOR JAMES G. WATT, Secretary GEOLOGICAL SURVEY Dallas L. Peck, Director Library of Congress catalog-card No. 73-600301 First printing 1972 Second printing 1972 Third printing 1983 HTML Version 1995 CONTENTS Introduction Hydrologic definitions A B ... References INTRODUCTION (TOC) A B C ... Z Hydrologic techniques, capably applied, are essential for the sound development and management of water resources. The population of our country is increasing rapidly but water use outpaces the growth in population and thus creates demands for water that frequently impinge on the available supply. The mounting demands, the increasing areas of conflict, and the rising rate of flood damage impel a need for refined methods of analysis of water problems. Consider the planning for a water supply for a town or an irrigation project: How much water is available in the rivers? How does this supply compare with the demand? Is reservoir storage needed? If so, how much? Riverflow varies and therefore reservoirs are built to store water to tide over from times of excess to times of deficiency. The problem is to design the storage reservoir so that the demands for water can be supplied despite variations in riverflow. Reservoirs that are built too large waste money and water; reservoirs built too small cannot do the job expected of them.

71. Welcome To The Graduate Program Of Hydrologic Sciences The Graduate Program of Hydrologic Sciences (GPHS) has always been a true collaboration between the University of Nevada, Reno (UNR) and the Desert Research http://www.hydro.unr.edu/

Home Prospective Students Faculty and Staff Students ... Research Welcome to the Graduate Program of Hydrologic Sciences The Graduate Program of Hydrologic Sciences (GPHS) has always been a true collaboration between the University of Nevada, Reno (UNR) and the Desert Research Institute (DRI) . The GPHS is one of the largest such programs in North America and is consistently ranked among the top 10 in the United States by U.S. News and World Report. The Hydrologic Sciences Graduate Program offers M.S. and Ph.D. degrees in both Hydrology and Hydrogeology. Students within the Hydrology option can specialize in surface water hydraulics, watershed hydrology, water resources evaluations, water quality, geomorphology, and limnology. Specific areas of emphasis in Hydrogeology include groundwater contaminant transport, geochemical evolution of ground waters, nutrient transport processes, vadose zone hydrology, ground water resource evaluation and ground water modeling. Students with training in hydrologic sciences, geology, geophysics, engineering, soil science, biology, chemistry, computer science, fluid mechanics, mathematics, and physics are strongly encouraged to apply for admission to the graduate program. Privacy Accessibility

72. Advanced Hydrologic Prediction Service: Juneau National Weather Service Advanced Hydrologic Prediction Service. http://aprfc.arh.noaa.gov/ahps2/index.php?wfo=pajk

73. MIT OpenCourseWare | Civil And Environmental Engineering | 1.72 Groundwater Hydr This course covers fundamentals of subsurface flow and transport, emphasizing the role of groundwater in the hydrologic cycle, the relation of groundwater http://ocw.mit.edu/OcwWeb/Civil-and-Environmental-Engineering/1-72Fall-2005/Cour

skip to content Home Courses Donate ... Civil and Environmental Engineering Groundwater Hydrology 1.72 Groundwater Hydrology Fall 2005 MIT / BUET team drilling a sediment core at a field site in Munshiganj, Bangladesh. (Image by Prof. Charles Harvey.) Course Highlights This course features a complete set of lecture notes , as well as videos from the Cape Cod Field Trip and a page describing the work of the Harvey Research Group and their Bangladesh Case Study Course Description This course covers fundamentals of subsurface flow and transport, emphasizing the role of groundwater in the hydrologic cycle, the relation of groundwater flow to geologic structure, and the management of contaminated groundwater. The class includes laboratory and computer demonstrations. Special Features Class field trip video Technical Requirements Special software is required to use some of the files in this course: .rm .xls .m , and *Some translations represent previous versions of courses. Staff Instructor: Prof. Charles Harvey Course Meeting Times Lectures: Two sessions / week 1.5 hours / session

74. Sakia.org - The World Irrigation Index: Virtual Library Irrigation & Hydrology By Dr.ThomasM. Stein http://www.vl-irrigation.org/

75. CH561.2: Hydrologic Sorting The order of fossils deposited by Noah s Flood, especially those of marine organisms, can be explained by hydrologic sorting. Fossils of the same size will http://www.talkorigins.org/indexcc/CH/CH561_2.html

Index to Creationist Claims Previous Claim: CH561.1 List of Claims Next Claim: CH561.3 Claim CH561.2: The order of fossils deposited by Noah's Flood, especially those of marine organisms, can be explained by hydrologic sorting. Fossils of the same size will be sorted together. Heavier and more streamlined forms will be found at lower levels. Source: Whitcomb, John C. Jr. and Henry M. Morris, 1961. The Genesis Flood . Philadelphia, PA: Presbyterian and Reformed Publishing Co., pp. 273-274 Response: Fossils are not sorted according to hydrodynamic principles. Ammonites, which are buoyant organisms similar to the chambered nautilus, are found only in deep strata. Turtles, which are rather dense, are found in middle and upper strata. Brachiopods are very similar to clams in size and shape, but brachiopods are found mostly in lower strata than are clams. Most fossil-bearing strata contain fossils of various sizes and shapes. Some species are found in wide ranges, while others are found only in thin layers within those ranges. Hydrologic sorting can explain none of this. The sediments in which fossils are found are not hydrologically sorted. Coarse sediments are often found above fine sediments. Nor are the sediments sorted with the fossils. Large fossils are commonly found in fine sediments.

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