Gulf of Mexico coastal hydrological features

Dataset Identification:

Resource Abstract:
The dataset represents hydrological features, extracted from the NHDPlus NHDArea shapefile, that intersect a 1 mile interior coastline buffer along the Gulf of Mexico and Atlantic Ocean coasts within our study area, from Texas to New Jersey. <br /> <br /> The NHDPlus NHDArea shapefile describes NHD polygonal features of types: Area to be Submerged, BayInlet, Bridge, CanalDitch, DamWeir, Flume, Foreshore, Hazard Zone, Lock Chamber, Inundation Area, Rapids, SeaOcean, Special Use Zone, Spillway, StreamRiver, Submerged Stream, Wash, Water IntakeOutflow, and Area of Complex Channels. <br /> <br /> NHDPlus is a complex, nationwide dataset features that can be accessed here (last checked 06/16/10): http://www.horizon-systems.com/nhdplus/. Its original metadata is included below. <br /> <br /> The NHDPlus Version 1.0 is an integrated suite of application-ready geospatial data sets that incorporate many of the best features of the National Hydrography Dataset (NHD) and the National Elevation Dataset (NED). The NHDPlus includes a stream network (based on the 1:100,000-scale NHD), improved networking, naming, and &quot;value-added attributes&quot; (VAA's). NHDPlus also includes elevation-derived catchments (drainage areas) produced using a drainage enforcement technique first broadly applied in New England, and thus dubbed &quot;The New-England Method&quot;. This technique involves &quot;burning-in&quot; the 1:100,000-scale NHD and when available building &quot;walls&quot; using the national Watershed Boundary Dataset (WBD). The resulting modified digital elevation model (HydroDEM) is used to produce hydrologic derivatives that agree with the NHD and WBD. An interdisciplinary team from the U. S. Geological Survey (USGS), U.S. Environmental Protection Agency (USEPA), and contractors, over the last two years has found this method to produce the best quality NHD catchments using an automated process. The VAAs include greatly enhanced capabilities for upstream and downstream navigation, analysis and modeling. Examples include: retrieve all flowlines (predominantly confluence-to-confluence stream segments) and catchments upstream of a given flowline using queries rather than by slower flowline-by-flowline navigation; retrieve flowlines by stream order; subset a stream level path sorted in hydrologic order for stream profile mapping, analysis and plotting; and, calculate cumulative catchment attributes using streamlined VAA hydrologic sequencing routing attributes. The VAAs include results from the use of these cumulative routing techniques, including cumulative drainage areas, precipitation, temperature, and land cover distributions. Several of these cumulative attributes are used to estimate mean annual flow and velocity as part of the VAAs. NHDPlus contains a snapshot (2005) of the 1:100,000-scale NHD that has been extensively improved. While these updates will eventually make their way back to the central NHD repository at USGS, this will not have happened prior to distribution of NHDPlus because the update process for the central NHD repository is still in development. Consequently, the NHDPlus will contain some temporary database keys and, as a result, NHDPlus users may not make updates to the NHD portions of NHDPlus with the intent of sending these updates back to the USGS. Once the NHDPlus updates have been posted to the central NHD repository, a fresh copy of the improved data can be downloaded from the central NHD repository and that copy will be usable for data maintenance. Note that the NHDPlus products are tightly integrated and user modifications to the underlying NHD can compromise this synchronization.
Citation
Title Gulf of Mexico coastal hydrological features
Original Data Basin Creation Date  Date   2010-06-16
Original Data Basin Modified Date  Date   2010-06-16
Topic Category:  geoscientificInformation
Keywords:
Keywords
nhd
topography
hydrography
reservoir
sparrow
canal / ditch
cartography
national land cover dataset
national elevation dataset
stream velocity
earth science
spatially referenced regressions on watershed
gis
land cover
national hydrography dataset
ned
swamp / marsh
land surface
stream flow
gulf of mexico
river coding systems
elevation
hydrologic modeling
oil spill
reach
artificial path
catchment
bp
spring / seep
stream / river
geodata
deepwater horizon
lake / pond
usgs
inlandwaters
watershed
nlcd
nhdplus
water-quality
streamstats
epa
thesaurus name >
Title Data Basin
revision  Date   2018-06-27
Resource language:  eng
Resource extent
Geographic Extent
Geographic Bounding Box
westBoundLongitude  -100.1773
eastBoundLongitude  -74.283
northBoundLatitude  37.5807
southBoundLatitude  23.835
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Resource distribution information

Digital Transfer Options
Linkage for online resource
name ScienceBase Item Summary Page
URL: https://www.sciencebase.gov/catalog/item/537f6c6ee4b021317a872838
protocol WWW:LINK-1.0-http--link
link function information
Description Link to the ScienceBase Item Summary page for the item described by this metadata record
target application profile  Web Browser
Linkage for online resource
name Owner Profile Page
URL: http://databasin.org/people/consbio
protocol WWW:LINK-1.0-http--link
link function information
Description Web Link
target application profile  Web Browser

Metadata data stamp:  2014-05-23T15:42:38Z
Metadata Constraints
Constraints
Use limitation statement:
none
Metadata contact - owner
organisation Name  Conservation Biology Institute
Contact information
Metadata scope code  dataset
Metadata language  eng USA
Metadata character set encoding:   utf8
Metadata standard for this record:  ISO19115
standard version:  1.0
Metadata record identifier:  537f6c6ee4b021317a872838
URI for dataset described: > https://www.sciencebase.gov/catalog/item/537f6c6ee4b021317a872838

Metadata record format is ISO19139 XML (MD_Metadata)