Identification_Information: Citation: Citation_Information: Originator: Kerie Hitt Publication_Date: 20040927 Title: NAWQA GIS data: Boundaries of Surface-Water Regions Edition: 2 Online_Linkage: Browse_Graphic: Browse_Graphic_File_Name: Browse_Graphic_File_Description: This is a browse graphic of the dataset. Browse_Graphic_File_Type: GIF Description: Abstract: This data set consists of boundaries of the NAWQA Surface-Water Regions (formerly called Major River Basins) proposed for regional synthesis in cycle II of NAWQA. Although boundaries of some of the NAWQA study units are likely coincident with Surface-Water Regions, the boundary lines depicted in this coverage don't necessarily match the full resolution study unit boundaries in the NAWQA study unit coverage. Purpose: This is one of the GIS base layers developed for analysis of water-quality data. Supplemental_Information: The source of the data is the 1:2 million Hydrologic Unit Boundaries (November 2002) in the National Atlas. NAWQA Surface-Water Regions are combinations of Water-Resources Regions (2-digit HUCs) and are referenced in the coverage by a number from 1-8. !1----- New England and Mid-Atlantic: CONN, DELR, HDSN, LINJ, NECB, PODL !2----- South Atlantic-Gulf and Tennessee: ACFB, ALBE, GAFL, MOBL, SANT, SOFL, TENN !3----- Great Lakes, Ohio, Upper Mississippi, and Souris-Red-Rainy: EIWA, LERI, LIRB, part of MISE, part of OZRK, UIRB, UMIS, WHMI, WMIC !4----- Missouri: CNBR, KANS, part of OZRK, SPLT, YELL !5----- Lower Mississippi, Arkansas-White-Red, and Texas-Gulf: ACAD, CACI, MISE, part of OZRK, SCTX, TRIN !6----- Rio Grande, Colorado, and Great Basin: CAZB, GRSL, NVBR, RIOG, UCOL !7----- Pacific Northwest: CCYK, PUGT, USNK, WILL !8----- California: SACR, SANJ, SOCA !------ None: COOK, OAHU (excluded from this coverage) Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2002 Currentness_Reference: Current. Status: Progress: Complete Maintenance_and_Update_Frequency: Occaisonally the HUC boundaries or Surface-Water Regions are refined. Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -127.889968 East_Bounding_Coordinate: -65.349828 North_Bounding_Coordinate: 51.605652 South_Bounding_Coordinate: 22.863140 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: NAWQA Theme_Keyword: NAWQA Surface-Water Regions Theme_Keyword: Regional synthesis Theme_Keyword: Surface water quality Theme_Keyword: Water quality Theme_Keyword: Drainage basins Theme_Keyword: Watersheds Theme_Keyword: Hydrologic Units Access_Constraints: The data set is for internal USGS access only. Use_Constraints: The data set is for internal USGS use only. Cross_Reference: Citation_Information: Originator: Kerie Hitt Publication_Date: 20040908 Title: NAWQA GIS data: Generalized boundaries of Surface-Water Regions Online_Linkage: Other_Citation_Details: This companion coverage is a generalized version of the NAWQA Surface-Water Regions merged with standard display coverages used by NAWQA for making maps. Data_Quality_Information: Logical_Consistency_Report: None. Completeness_Report: None. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: John Watermolen, USGS Publication_Date: 200211 Title: 1:2,000,000-Scale Hydrologic Unit Boundaries Edition: 2.3 Geospatial_Data_Presentation_Form: map Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Type_of_Source_Media: digital files Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 19981001 Source_Currentness_Reference: Ground condition Source_Citation_Abbreviation: HUC2M Source_Contribution: Polygons representing the 8-digit hydrologic units (cataloging units) downloaded from the National Atlas 03/05/2004. Process_Step: Process_Date: 20040305 Process_Description: Downloaded export file e_hucs00 from National Atlas map warehouse and imported to coverage. Re-projected from geographic to Albers projection. Selected the cataloging units in the water-resources regions comprising each Major River Basin and made 8 individual MRB coverages each coded by MRB. Polygons coded as water (PLYTYPE NE 0) are excluded. Process_Step: Process_Date: 20040618 Process_Description: Dissolved on MRB and appended the 8 intermediate coverages together to form a national coverage. Process_Step: Process_Date: 20040908 Process_Description: Revised REG 4 and REG 5 as requested by Dave Mueller. REG 5 is the Missouri River Basin (HUC region 10.) Changed the field called MRB to REG to match revised terminology. Revised names to match Water Resources Region names. Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Complete chain Point_and_Vector_Object_Count: 1790 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Label point Point_and_Vector_Object_Count: 1527 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains Point_and_Vector_Object_Count: 1527 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Point Point_and_Vector_Object_Count: 224 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: Albers Conical Equal Area Albers_Conical_Equal_Area: Standard_Parallel: 29.5 Standard_Parallel: 45.5 Longitude_of_Central_Meridian: -96 Latitude_of_Projection_Origin: 23 False_Easting: 0.00000 False_Northing: 0.00000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.002149 Ordinate_Resolution: 0.002149 Planar_Distance_Units: METERS Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: GRS1980 Semi-major_Axis: 6378137.000 Denominator_of_Flattening_Ratio: 298.257222 Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: The data set is referenced by REG (Surface-Water Region) 1-8, assigned by NAWQA. !REG Water-Resources Regions !1 New England and Mid-Atlantic !2 South Atlantic-Gulf and Tennessee !3 Great Lakes, Ohio, Upper Mississippi, and Souris-Red-Rainy !4 Missouri !5 Lower Mississippi, Arkansas-White-Red, and Texas-Gulf !6 Rio Grande, Colorado River and Great Basin !7 Pacific Northwest !8 California Entity_and_Attribute_Detail_Citation: The water resources names are consistent with those in USGS Water-Supply Paper 2294 - Hydrologic Unit Maps, by Paul Seaber, Paul Kapinos, and George Knapp. Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Kerie Hitt Contact_Organization: USGS NAWQA Nutrients National Synthesis Contact_Address: Address_Type: Mailing address Address: 413 National Center City: Reston State_or_Province: VA Postal_Code: 20192 Country: USA Contact_Electronic_Mail_Address: kjhitt@usgs.gov Contact_Voice_Telephone: 703 648-6854 Contact_Instructions: Contact via email Distribution_Liability: USGS assumes no liability for the use of this data set. Metadata_Reference_Information: Metadata_Date: 20040927 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Kerie Hitt Contact_Organization: USGS NAWQA Nutrients National Synthesis Contact_Address: Address_Type: Mailing address Address: 413 National Center City: Reston State_or_Province: VA Postal_Code: 20192 Country: USA Contact_Electronic_Mail_Address: kjhitt@usgs.gov Contact_Voice_Telephone: 703 648-6854 Contact_Instructions: Contact via email Metadata_Standard_Name: Content standards for digital geospatial metadata Metadata_Standard_Version: FGDC-STD-001-1998