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	Hydrography - Wikipedia, the free encyclopedia
		Hydrography focuses on the measurement of physical characteristics of waters and marginal land.
		With that usage oceanography and limnology are subsets of hydrography.
		The hydrography of an Italian region: by the Regione Abruzzo Settore Turismo.
	en.wikipedia.org /wiki/Hydrography (625 words)

	Hydrography Information (Site not responding. Last check: 2007-10-21)
		Hydrography is the measurement of physical characteristics of waters and marginal land.
		Hydrography on a large scale generally applies to the oceans and national or international efforts to describe them for navigational purposes.
		Oceanic hydrography may be considered a specialized subset of oceanography that is particularly dedicated to marine navigation and its safety.
	home.comcast.net /~neburoker1/hydrography.htm (474 words)

	Hydrography (Site not responding. Last check: 2007-10-21)
		The hydrography layer consists of flowing waters (rivers and streams), standing waters (lakes and ponds), and wetlands -- both natural and manmade.
		Hydrography of the entire state is stored in 2 statewide coverages and in 33 separate ARC/INFO coverages or tiles.
		In 1992, the Teale hydrography data layer was sent upon request to the U.S. Environmental Protection Agency (US EPA) Office of Water for use as a basemap for the River Reach File version 3-alpha, also known as Reach File 3 or RF3-alpha.
	casil.ucdavis.edu /casil/gis.ca.gov/teale/hydro (657 words)

	National Hydrography Datatset
		The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that comprise the nations surface water drainage system.
		The National Hydrography Dataset is designed to provide comprehensive coverage of hydrologic data for the U.S. While initially based on 1:100,000-scale data, the NHD is designed to incorporate - and encourage the development of - higher-resolution data required by many users.
		The National Hydrography Dataset is a comprehensive set of digital spatial data that encodes information about naturally occurring and constructed bodies of water, paths through which water flows, and related entities.
	edcsns17.cr.usgs.gov /helpdocs/fgdc/nhd.html (1740 words)

	Thales Navigation Professional Products :: GPS Solutions :: Marine Survey Solutions :: Hydrography
		Modern hydrography is the science of "sea geography" in its most comprehensive sense.
		Since the beginning of the 1990's, real-time differential GPS (DGPS) has been meeting the needs of a growing number of applications in the field of hydrography, and current kinematic techniques can now offer real-time centimeter accuracy.In deep-sea oceanography applications, meter accuracy is typically required.
		The Ashtech 3011 from Thales Navigation is the ideal heading measurement instrument for meeting the requirements of modern navigation systems, which are increasingly being used by fishermen, navigation professionals and hydrographers.
	products.thalesnavigation.com /en/solutions/marine/hydrography.asp (454 words)

	Hydrography (Site not responding. Last check: 2007-10-21)
		Hydrography is the science of surveying and charting the sea floor and coastlines for navigation and other purposes.
		Regione Abruzzo Settore Turismo - The Territory - The hydrographyThe territory The hydrography.
		The surface hydrography of Abruzzo is very complex, because of the diversity of mountain chains, some...
	bigletterlist.net /w/h/Hydrography.htm (346 words)

	The National Hydrography Dataset (Site not responding. Last check: 2007-10-21)
		The National Hydrography Dataset (NHD) is a comprehensive set of digital spatial data that encodes information about naturally occurring and constructed bodies of water, paths through which water flows, and related entities.
		The data were organized in the DLG optional format, were tiled in quadrangles, were edge-matched, were from the DLG "hydrography" data category, and were in the Universal Transverse Mercator coordinate system, North American Datum of 1927 (NAD27).
		hydrography — (1) The science comprising the description, study, and mapping of the waters of the Earth's surface (the seas, lakes, rivers, and so on), including their forms and physical features.
	nhd.usgs.gov /chapter1 (10950 words)

	AllRefer.com - Louis Jolliet (Explorers, Travelers, And Conquerors) - Encyclopedia
		After a year's study of hydrography in France and some years as a trader and trapper on the Great Lakes, Jolliet was appointed (1672) as leader of an expedition in search of the Mississippi.
		Jolliet was rewarded with the gift of Anticosti Island in the Gulf of St. Lawrence, which was, however, seized by the British while Jolliet was absent on explorations in Labrador and around Hudson Bay.
		In 1697 he was made royal professor of hydrography and given a small seigniory near Quebec.
	reference.allrefer.com /encyclopedia/J/Jolliet.html (379 words)

	GISWR: National Hydrography Dataset
		The National Hydrography Dataset (NHD) is a geographic database that interconnects and uniquely identifies the stream segments or "reaches" that comprise the nation's surface water drainage system.
		Furthermore, since the NHD provides a nationally consistent framework for addressing and analysis, water-related information linked to reach addresses by one organization (national, state, local) can be shared with other organizations and easily integrated into many different types of applications to the benefit of all.
		The National Hydrography Dataset is designed to provide comprehensive coverage of hydrologic data for the US.
	www.crwr.utexas.edu /giswr/events/122000nhda/11/nhd.html (340 words)

	IB-OR-2002-169-Hydrography Data Integration Workshop (Site not responding. Last check: 2007-10-21)
		The purpose of this Information Bulletin is to provide important information concerning preparations for and participation in a Hydrography Data Integration Workshop scheduled for the week of May 20, 2002, at the Robert Duncan Plaza Building in Portland, Oregon.
		Hydrography Data Stewards from your district will work with their Forest Service counterparts to determine which data within shared watersheds should be carried forward to the Clearinghouse.
		Chester Novak, Oregon/Washington BLM Hydrography Steward, OR-080, at 503-373-5626, and Dan Wickwire, Oregon/Washington BLM Project Lead on water-related GIS, OR955.2, at 503-808-6272, are the primary points of contact for this project.
	www.blm.gov /nhp/efoia/or/fy2002/ib/ib-or-2002-169.htm (531 words)

	Washington Hydrography Framework - 100K Layer (Site not responding. Last check: 2007-10-21)
		Department of Ecology, in cooperation with the Oregon and Washington Framework Management Group, undertook the data improvement and modification of the existing Pacific States Marine Fisheries Council (PSMFC) StreamNet watercourse and Ecology's water body spatial data layer.
		Watercourse improvements consisted of the addition and routing of canals and the restructuring of attributes to meet the draft OR/WA Hydrography Framework physical data structure.
		Hydrography Framework Project Website: 24k hydrology layers will be available sometime in the future on the Hydro Clearinghouse Website.
	www.ecy.wa.gov /services/gis/data/hydro/wahyfw_100k.htm (230 words)

	WDNR - 1:24,000-Scale Hydrography
		Since the initial release of the DNR 24K Hydrography database, a series of data updates and enhancements have been completed, culminating most recently in Version 4 of the 24K Hydro layer.
		The 24K Hydrography data in shapefile format, accompanied by several pre-constructed ArcView legend files intended to facilitate use of the data.
		Because the sources of the 24K Hydrography data span many years and originate from several sources, the data may reflect areas of transition from one source to another.
	www.dnr.state.wi.us /maps/gis/datahydro.html (684 words)

	EPA Region 2 GIS Data -National Hydrography Dataset (NHD)
		The National Hydrography Dataset (NHD) is a comprehensive set of digital spatial data that contains information about surface water features such as lakes, ponds, streams, rivers, springs and wells.
		The NHD is based upon the content of USGS Digital Line Graph (DLG) hydrography data integrated with reach-related information from the EPA Reach File Version 3 (RF3).
		While initially based on 1:100,000-scale data, the NHD is designed to incorporate and encourage the development of higher resolution data required by many users.
	www.epa.gov /r02earth/gis/atlas/nhd.htm (223 words)

	Hydrography Enhancements
		The pilot project evolved as a result of a subcommittee that was formed by the GIS Technical Committee to coordinate the enhancement efforts.
		An additional benefit of meeting the NHD specifications is the standardization of hydrography data throughout the northeast as well as nationwide.
		The hydrography enhancements will improve the usefulness of the hydrography data for many applications, including: dam safety, water quality modeling, permit modeling and watershed analysis.
	www.state.me.us /newsletter/Sept2001/hydrography_enhancements.htm (439 words)

	Colusa Refuge Hydrography
		It is intended to be used as a base map for evaluating use patterns of wildlife and plant species distribution within the complex, to help in analysis of habitat management, to provide a georeferenced base for species observations, to assist in evaluating maintenance operations, and to provide maps for public use, reports, and publications.
		Arcs from all layers, (unit boundaries, roads, hydrography) were traced from aerial photos on to acetate.
		Unit boundaries were cleaned as poly coverages, roads and hydrography were cleaned as line coverages.
	www.nbii.gov /metadata/mdata/htmlfiles/usgs_brd_werc_crhydro.html (659 words)

	Topanga Creek Watershed and Lagoon - Hydrography (Streams and Water Bodies) - Topanga Creek Watershed
		Original source: USGS Hydrography 7.5' (1:24000-scale) Digital Line Graphs (DLG).
		This is a digital version of the hydrography features depicted on 1:24000-scale USGS 7.5' quadrangle topographic maps.
		Any purpose for which USGS hydrography mapping may be used.
	ceres.ca.gov /calsip/catalog/BrowseRecord.epl?id=4647 (112 words)

	The National Map - Hydrography, Fact Sheet 060-02 (June 2002)
		National Hydrography Dataset features include points, lines, and areas that represent standing and flowing water.
		The National Hydrography Dataset (NHD) is the surface water feature data component of The National Map.
		The initial implementation of the NHD was produced by combining the geometry of water features from USGS digital line graph data with river reach codes and other information developed by the Environmental Protection Agency (EPA).
	erg.usgs.gov /isb/pubs/factsheets/fs06002.html (963 words)

	The National Hydrography Dataset, Fact Sheet 106-99 (April 1999)
		In the upper left, the irregular shapes on and around the shaded image of Kentucky are the hydrologic cataloging units that are in the State of Kentucky.
		The National Hydrography Dataset (NHD) is a newly combined dataset that provides hydrographic data for the United States.
		The NHD is the culmination of recent cooperative efforts of the U.S. Environmental Protection Agency (USEPA) and the U.S. Geological Survey (USGS).
	mac.usgs.gov /isb/pubs/factsheets/fs10699.html (874 words)

	CT DEP: Contents of Hydrography Data Archive (Site not responding. Last check: 2007-10-21)
		The Hydrography Master layer in Coverage format is the primary data source for most layers.
		This is an old spatial data format that is no longer widely used and is commonly referred to as ArcInfo Coverage format.
		This format preserves the original topological relationships between polygon and line features upon which the values for attributes such as Stream and Lake Numbers in the Hydrography Master layer were logically based.
	dep.state.ct.us /gis/data/LayersHydro.asp (216 words)

	Washington Framework Hydro Project
		The Washington Hydrography Framework Project is the cooperative effort of many federal, state, local, and tribal governmental organizations, as well as private organizations to define, implement, and maintain a single high resolution hydrography network for Washington State.
		Through a formal arrangement with the Interorganizational Resources Information Coordinating Council (IRICC) the Washington Hydrography Framework Project has coordinated it's efforts with those of the Oregon Hydrography Framework Project to facilitate a regional Framework effort encompassing Washington, Oregon, and northern California.
		The ultimate goal of the Framework Project is to establish a common "core" set of spatial and tabular hydrography information to which all organizations can attach their business specific requirements.
	wagic.wa.gov /Framework/hydro (477 words)

	FIG Commission 4 - Index
		The IHO Manual on Hydrography general objective is to provide knowledge on the concepts involved in hydrography as well as guidance to plan and execute hydrographic surveys.
		The Manual is considered to be a professional guide for hydrographic surveyors and a tool for teachers and students involved in hydrographic courses or programs.
		Chapter 6 is devoted to topographic surveying applied to hydrography;
	www.fig.net /commission4 (306 words)

	WDNR - Metadata for 1:100,000-scale Hydrography (Site not responding. Last check: 2007-10-21)
		The 1:100,000-scale Hydrography (HYDNW91C) data layer is derived from the 1:100,000-scale Digital Line Graphs (DLGs) of the U.S. Geological Survey (USGS).
		These data are used for display, mapping and analytic purposes where an intermediate-scale representation of hydrography is needed.
		The spatial extent this data layer is the state of Wisconsin, plus a buffer around the perimeter extending 10,000 meters beyond the state boundary.
	www.dnr.state.wi.us /maps/gis/metahydro1m.html (672 words)

	National Hydrography Dataset and Networks in ArcGIS
		Part 1 introduces the user to map hydrography data depicting water features of the landscape, and specifically hydrography data from the National Hydrography Dataset.
		The attributes accompanying the hydrography data are also described..
		These features are known as Landmarks and are found in the NHD as route.lm and region.lm in the nhd coverage folder for lines and areas and as the nhdpt coverage for points.
	www.ce.utexas.edu /prof/MAIDMENT/giswr2001/ex4/NHDNetwork.htm (5827 words)

	Wyoming Natural Resources Data Atlas (Site not responding. Last check: 2007-10-21)
		Hydrography produced and enhanced from Digital Line Graphs
		To see quadrangle names, go to the quad index map.
		Dark blue is perennial hydrography, light blue is intermittent.
	www.sdvc.uwyo.edu /24k/hydro100.html (37 words)

	CaSIL Metadata Catalog - National Hydrography Dataset CA SWRCB Region 2 HPBA()
		National Hydrography Dataset CA SWRCB Region 2 HPBA()
		Dataset: National Hydrography Dataset CA SWRCB Region 2 HPBA()
		Acknowledgment of the originating agencies would be appreciated in products derived from these data.
	gis.ca.gov /catalog/BrowseRecord.epl?id=21043 (521 words)

	Hydrography (Site not responding. Last check: 2007-10-21)
		This book is based on the lecture notes for the graduate and undergraduate courses in hydrography as offered at the Department of Geomatics Engineering of the University of Calgary and the Department of Mathematical Geodesy and Positioning of Delft University of Technology.
		The purpose of the book is to present an introduction to and an overview of the broad field of hydrography.
		Since there is only a weak interdependence between the eleven chapters, each of them can be studied separately.
	www.coronetbooks.com /books/hydr3591.htm (106 words)

	CaSIL Metadata Catalog - National Hydrography Dataset CA SWRCB Region 6 HPBA(nl)
		National Hydrography Dataset CA SWRCB Region 6 HPBA(nl)
		Dataset: National Hydrography Dataset CA SWRCB Region 6 HPBA(nl)
		http://gis.ca.gov/view.epl?catalog=casil&name=nhd_r6_nl&data_title=National Hydrography Dataset CA SWRCB Region 6 HPBA(nl)
	ceres.ca.gov /calsip/catalog/BrowseRecord.epl?id=4712 (516 words)

	The National Hydrography Dataset and Network Capabilities in Arc GIS 8
		The sinks are used to calculate flow direction in the network.
		The National Hydrography Dataset (NHD) is an substantial set of digital data and contains information about the surface water drainage network of the United States.
		In addition to the layers described above, the National Hydrography Dataset contains hydrographic features which do not necessarily play a role in the network.
	www.crwr.utexas.edu /gis/gishydro01/Class/exercises/nhd.htm (6412 words)

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