Image Table of Geography and Hydrography, Cyclopaedia, Volume 1.jpg thumb right 200px Table of geography, hydrography, and navigation, from the 1728 Cyclopaedia . Hydrography focuses on the measurement of the depth of inland water s and its variation over time and space as well as the description of the morphological characteristics of the marginal land. Those measurements and descriptions of navigable waters aid in the safe navigation of Watercraft vessel s. Overview Large scale hydrography is usually undertaken by national or international organizations that sponsor data collection through precise surveys and the publication of charts and descriptive material for navigational purposes. The science of oceanography is, in part, an outgrowth of classical hydrography. In many respects the data are interchangeable, but marine hydrographic data will be particularly directed toward marine navigation ... application of hydrography, principally focussed on the search for hydrocarbon s. Hydrographical measurements ... that obstruct ship passage. Unlike oceanography, hydrography will include shore features, natural ... s position as well as the aspects of the sea and seabed. Hydrography, mostly for reasons of safety .... Hydrography of stream s will include information on the stream bed, Environmental flow flow s, water quality and surrounding land. drainage basin Basin or Interior Hydrography pays special attention to rivers and potable water . History Hydrography s origin lies in the making of chart like drawings ..., organization, publication and distribution of hydrography incorporated into charts and sailing ... to hydrography. His artistic talents were applied to the sometimes beautiful shore profiles that appeared ... is one of the oldest and most respected hydrography organisations in the world, supplying the widest ... Category Hydrography Category Oceanography Hydrography Category Hydrology Category Physical geography ... pl Hydrografia pt Hidrografia ro Hidrografie ru sq Hidrografia simple Hydrography ... more details
context date December 2010 The National Hydrography Dataset NHD is the surface water component of The National Map for the United States. It is used to represent surface water on maps and is also used to perform geospatial analysis. The NHD is a digital vector geospatial dataset designed for use in geographic information systems GIS for these two purposes. It contains features such as lakes, ponds, streams, rivers, canals, dams and streamgages that produce 7.5 million miles of streams rivers and 6.5 million lake ponds. In mapping, the NHD is used with other data themes such as elevation, boundaries, and transportation to produce general reference maps. In geospatial analysis the NHD is used by scientists using GIS technology. This takes advantage of a rich set of attributes that can be processed to generate specialized information. These analyses are possible because the NHD contains a flow direction network that traces the water downstream or upstream. It also uses an addressing system to link specific information about the water such as water discharge, water quality, and fish population. Using the basic water features, flow network, linked information, and other characteristics, it is possible to study cause and affect relationships, such as how a source of poor water quality upstream might affect a fish population downstream. External links http nhd.usgs.gov Reading Simley, J.D., Carswell Jr., W.J., 2009, The National Map Hydrography U.S. Geological Survey Fact Sheet 2009 3054, 4 p. Category Hydrography ... more details
Unreferenced date October 2006 Image Norte de Santander, Colombia Mapa de Hidrograf a.PNG thumb Map of the hydrography of North Santander , Colombia 200px The Norte de Santander Department North Santander Department of Colombia , and its capital, C cuta , rely on several rivers. The most important of these is the Pamplonita river. None of the rivers in this area present significant issues of pollution. The entity in charge of taking care of these resources is Corponor . Zulia river The Zulia River is formed by several rivers originating in lakes in the highlands of Cachiri at about 4,220 meters above sea level, and located between needs more numbers for the between to make sense, two latitude or two longitude numbers, or both 12 41 2 east longitude and 8 9 north latitude in the Santander Department, in the eastern range of the Andes mountains. The river flows by the province of C cuta, passing through the neighbouring nation of Venezuela , and ends in the waters of Lake Maracaibo. In Colombian territory, this river is navigable for about 70 kilometers, starting from the old port of Los Canchos. The river flows for 260 kilometers through Venezuela, the last 80 kilometers being deep and calm, adaptable to embarkments of big proportions. In the past, this river provided a basic means of transportation which was responsible for much of prosperity of the neighbouring valleys, like the center of nutritioned commerce, whose products fed many of the towns nearby. The Zulia river s tributaries include the Cucutilla, Arboleda, Salazar and the Peralonso rivers, which flow from the left bank, and the Pamplonita with its own tributaries the Tachira and the De la Grita rivers, entering from the right. Areas surrounding the Zulia river are fertile, with many forests decorating the landscape. However, the climate of this area could be seen as unhealthy, due to the density of trees and the many ... DEFAULTSORT Hydrography Of Cucuta And North Santander Category C cuta Category Rivers of Colombia ... more details
Image Sfestuaryhistorical.gif thumb right The Hydrography of the San Francisco Bay Area is a complex network of watersheds, marshes, rivers, creeks, reservoirs, and bays predominantly draining into the San Francisco Bay and Pacific Ocean . Bays The largest bodies of water in the Bay Area are the San Francisco Bay , San Pablo Bay , and Suisun Bay . The San Francisco Bay is one of the largest bays in the world. Many inlets on the edges of the three major bays are designated as bays in their own right, such as Richardson Bay , San Rafael Bay , Grizzly Bay , and San Leandro Bay . Nearby bays along the Pacific Coast include Bodega Bay , Tomales Bay , Drakes Bay , Bolinas Bay , and Half Moon Bay . Rivers The largest rivers are the Sacramento River Sacramento and San Joaquin River San Joaquin Rivers which drain into the Sacramento San Joaquin River Delta and thence to Suisun Bay . Other major rivers of the North Bay San Francisco Bay Area North Bay are the Napa River , the Petaluma River , the Gualala River , and the Russian River California Russian River the former two drain into San Pablo Bay , the latter two into the Pacific Ocean . In the South Bay, the Guadalupe River California Guadalupe River drains into San Francisco Bay near Alviso, San Jose, California Alviso . See List of rivers in California Creeks The Bay Area has a network of streams that are generally called creeks, but sometimes called arroyos, due to the Spanish language heritage evident in names such as Santa Rosa Creek and San Pablo Creek . Due to low rainfall in the summer months May October , many Bay Area creeks are intermittent, flowing above ground only during part of the year. Political groups have been formed to preserve creeks or restore creeks which have been culverted for development. Baxter Creek in Contra ... Bay Area Ecology of the San Francisco Estuary References Reflist DEFAULTSORT Hydrography Of The San Francisco Bay Area Category Hydrography Category Geography of the San Francisco Bay Area Category Water ... more details
For general context Oak Ridges Moraine Preliminary research on the hydrology of the Oak Ridges Moraine began in the 1970s, but a broader research effort including the impact of urban development on the aquifer system and Great Lakes water quality was established in 1993. Ref gsoc The research locus is the Geological Survey of Canada and the University of Toronto Groundwater Research Group, though other groups have made substantial contributions to this project. The moraine serves to recharge streams and rivers in the surrounding region, acting as an underground reservoir water reservoir . Rain and snow melt slowly soak into the moraine, being filtered and purified in its many sand and gravel aquifers. The cool, fresh water is discharged into the headwaters of streams and rivers which eventually flow into Lake Simcoe , Lake Scugog and Lake Ontario . The aquifers are also the water supply for some communities on the Moraine. Hydrogeology The moraine s hydrological system is inter twined with a regional flow system not bound by the morphological limits of the moraine. Ref hydrology For this reason, environmentalists and researchers promote an aggressive protection strategy extending beyond the moraine, thus ensuring a contiguously protected hydrological system. A number of features comprise the hydrological system of the Oak Ridges Moraine Ref features permanent and ephemeral streams, wetlands , kettle lakes and ponds, and their catchment areas, seepage areas and springs, and aquifers and other recharge areas. Hydrology The Oak Ridges Moraine s hydrological system is a major constituent of the Humber Watershed , so that any impact on this system will be of concern. A specific concern is urbanization, which affects water quality by increasing its load of metals and organic contaminants. Ref impact A study by Cook et al. title or ref. below 1985 found an increase in mean annual runoff, instantaneous discharge, and hydrograph peak flow as a result of urbanization ...chang ... more details
Offshore Survey is a specific discipline of Hydrographic survey primarily concerned with the description of the condition of the seabed and the condition of the subsea oilfield infrastructure that interacts with it. geology stub Category Hydrography ... more details
Summary Map highlighting the Borough of Aspinwall within Allegheny County, Pennsylvania. Data Sources County Boundaries US Census Bureau Municipal Boundaries US Census Bureau county subdivisions Bodies of Water National Hydrography Dataset USGS Licensing self GFDL cc by 2.5 migration relicense ... more details
Jean Mathieu de Chazelles 24 July 1657 &ndash 16 January 1710 , France French hydrography hydrographer , was born in Lyon . He was nominated professor of hydrography at Marseilles in 1685, and in that capacity carried out various coast surveys. In 1693 he was engaged to publish a second volume of the Neptune fran ais , which was to, include the hydrography of the Mediterranean . For this purpose he visited the Levant and Egypt . When in Egypt he measured the pyramids , and, finding that the angles formed by the sides of the largest were in the direction of the four cardinal points, he concluded that this position must have been intended, and also that the Geographical pole pole s of the earth and meridian geography meridian s had not deviated since the erection of those structures. He was made a member of the Academy in 1695, and died in Paris on the 16th of January 1710. The botanist and explorer Louis Feuill e was one of his pupils. 1911 DEFAULTSORT Chazelles, Jean Mathieu de Category 1657 births Category 1710 deaths Category French scientists Category French hydrographers ... more details
Los Coches Creek is a convert 9.4 mi km adj mid long tributary of the San Diego River in San Diego County , California . ref name NHD U.S. Geological Survey. National Hydrography Dataset high resolution flowline data. http viewer.nationalmap.gov viewer The National Map , accessed March 16, 2011 ref References Reflist coord missing San Diego County, California Category Rivers of San Diego County, California Category Geography of Southern California California geo stub ... more details
NHD may refer to Jargon file New Hacker s Dictionary , a glossary of hacker free and open source software hacker slang . National History Day or History Day , a national academic competition held in the United States by the University of Maryland, College Park , focusing on history, for students in grades 6 12. nHD, a display resolution of 640x360 pixels. See List of common resolutions for more information. The United States National Hydrography Dataset . disamb ... more details
Orphan date February 2009 Mount Aciar coord 64 24 S 62 33 W is a mountain rising to 1,300 m between the heads of Rush Glacier and Jenner Glacier in the Solvay Mountains , Brabant Island , Palmer Archipelago . The name Monte Primer Teniente Aciar appears on a 1957 Argentine hydrography hydrographic chart. DEFAULTSORT Aciar, Mount usgs gazetteer subantarctic geo stub Category Mountains of Antarctica ... more details
Orphan date February 2009 Rivergages.com is a website run by the United States Army Corps of Engineers that shows the water level of lakes and rivers in the United States . ref http www2.mvr.usace.army.mil WaterControl new layout.cfm ref References Reflist External links http www.RiverGages.com RiverGages.com Category American websites Category Science websites Website stub Hydrography stub ... more details
The Gataga River is a river in the Canadian Rockies Northern Rockies of British Columbia , Canada . It is a tributary of the Kechika River , which is a tributary of the Liard River Liard . References BCGNIS 8077 Gataga River coord 58 35 00 N 126 55 00 W region CA type river display title British Columbia hydrography Category Rivers of British Columbia Category Northern Interior of British Columbia Category Canadian Rockies BritishColumbiaInterior geo stub ... more details
Burnett Bay is a northern Canada Canadian Arctic waterway in the Northwest Territories . It is an eastern arm of the Arctic Ocean s Beaufort Sea on northwestern Banks Island . Robillard Island, Norway Island, and Bernard Island lie in a semicircle outside the bay s mouth. coord 73 37 N 123 52 W display title Northwest Territories hydrography Category Bays of the Northwest Territories Category Bays of the Arctic Ocean NorthwestTerritories geo stub ... more details
The Liddon Gulf coord 75 0 N 113 0 W region CA type waterbody display inline,title is a large inlet on the south west side of Melville Island Canada Melville Island , Northwest Territories , Canada . It joins the M Clure Strait to the south west. Northwest Territories hydrography Category Gulfs of the Northwest Territories Category Gulfs of the Arctic Ocean NorthwestTerritories geo stub ... more details
The Kellett Strait coord 75 45 N 117 30 W region CA type waterbody display inline,title is a natural waterway through the central Canadian Arctic Archipelago in the Northwest Territories of Canada . It separates Eglinton Island to the west and Melville Island Canada Melville Island to the east . It opens into the McClure Strait to the south, and the Fitzwilliam Strait to the north. Northwest Territories hydrography Category Straits of the Northwest Territories NorthwestTerritories geo stub pt Estreito de Kellett ... more details
The Nation Lakes are a series of four lakes in the Nation River system of the Omineca Country of the British Columbia Interior Central Interior of British Columbia , Canada . The four lakes are, from west to east downstream , Tsayta Lake Tsayta , Indata Lake Indata , Tchentlo Lake Tchentlo , and Chuchi Lake s. References BCGNIS 9119 Nation Lakes coord 55 12 00 N 124 45 00 W display title British Columbia hydrography Category Lakes of British Columbia Category Omineca Country BritishColumbiaInterior geo stub ... more details
This article is for the river in British Columbia. For the river in Alberta, see McLeod River . The McLeod River is a river in the British Columbia Interior Central Interior of British Columbia , Canada , flowing northeast into the north end of McLeod Lake . ref BCGNIS 20593 McLeod River ref References reflist coord 54 59 00 N 123 02 00 W display title British Columbia hydrography Category Rivers of British Columbia Category Greater Prince George BritishColumbiaInterior geo stub ... more details
Hydrographics may refer to Hydrography , the measurement of physical characteristics of waters and marginal land Hydrographics printing , a printing technique for three dimensional objects disambig Long comment to avoid listing on Special Shortpages . Long comment to avoid listing on Special Shortpages . Long comment to avoid listing on Special Shortpages . Long comment to avoid listing on Special Shortpages . ... more details
Summary Information Description National Oceanic and Atmospheric Administration Hydrography hydrographic survey ship NOAAS Thomas Jefferson S 222 NOAAS Thomas Jefferson S 222 Source http www.moc.noaa.gov tj index.html Date Sometime between 2003 and 2007 Author NOAA photo Permission other versions None known Licensing PD USGov NOAA ... more details
The Murray Inlet coord 75 15 N 114 0 W region CA type waterbody display inline,title is a large inlet on the south west side of Melville Island Canada Melville Island , Northwest Territories , Canada . It joins the Liddon Gulf and M Clure Strait to the south west. Northwest Territories hydrography Category Inlets of the Northwest Territories Category Inlets of the Arctic Ocean NorthwestTerritories geo stub ... more details
The Richard Collinson Inlet coord 72 54 44 N 113 38 11 W region CA type waterbody display inline,title is a large inlet on the north side of Victoria Island Canada Victoria Island , Northwest Territories , Canada . It opens into Viscount Melville Sound to the north. Northwest Territories hydrography Category Inlets of the Northwest Territories Category Inlets of the Arctic Ocean Category Victoria Island Canada NorthwestTerritories geo stub ... more details
Unreferenced date December 2009 Morfee Lake is approximately 1.5 kilometers from the Alexander Mackenzie Hotel. It is a short distance from the town of Mackenzie, British Columbia . http www.district.mackenzie.bc.ca During winter months ice fishing becomes the sport of choice. coord missing British Columbia British Columbia hydrography Category Lakes of British Columbia BritishColumbiaInterior geo stub ... more details
A Sonde Sonde is French language French for probe is a water quality monitoring instrument, that may be stationary or may move up and down a water column , measuring the following, but not limited to, water attributes temperature, Conductivity electrolytic conductivity , salinity , dissolved oxygen , pH , turbidity , and depth. ref http oceanexplorer.noaa.gov technology tools sonde ctd sondectd.html ref See also Radiosonde References references Category Water and the environment Category Limnology Category Hydrography ... more details
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