Table of Contents
Identification_Information Abstract Purpose Supplemental Information Data_Quality_Information Spatial_Data_Organization_Information Entity_and_Attribute_Information Detailed Description Overview Distribution_Information Metadata_Reference_Section
Identification_Information
Citation_Information Originator: US Environmental Protection Agency Publication_Date: Title: Aggregations of Level III Ecoregions for National Nutrient Assessment & Management Strategy Geospatial_Data_Presentation_Format: Nutrient AggregationDescription Abstract Aggregations of level III Ecoregions for the National Nutrient Assessment and Management Strategy: This map of draft aggregation of level III ecoregions of the conterminous United States defines broad areas within which there are general similarities in the quality and types of ecosystems as well as natural and anthropogenic characteristics regarding nutrients. Variability in ecosystems, nutrient issues and the associations between them is also generally similar within each of these regions. As such, these regions are intended to provide a spatial framework for general guidance and reporting for the national nutrient strategy. In general, the variability in nutrient concentrations in streams, lakes, and soils will be less in level III ecological regions, and even less in Level IV ecoregions, and even less in smaller lake, soils, and/or physiographic regions. For additional information, contact James M. Omernik, U.S. EPA National Health and Environmental Effects Laboratory (NHEERL), 200 SW 35th St., Corvallis, OR 97333 (phone: 541-754-4458). Purpose These regions are intended to provide a spatial framework for general guidance and reporting for the national nutrient strategy. Supplemental_Information Procedures_Used A copy of level III ecoregions (USECO) was coded based on aggregations of regions drawn on a paper map. DISSOLVE was run on this item (DIS), and polygons and labels were checked in ARCEDIT to see that they matched polygons on paper map. A plot (polygons and labels) was created and overlain with the first map visually inspected to insure that the coding was correct. Revisions 1. Nutrient coverage was created based on aggregated level III ecoregions 2. Nutrient coverage was revised to move level III region 42 from nutrient region VI to region IV. 4/1/98 3. Nutrient coverage was recreated to reflect changes made to level III ecoregions as a result of interagency work. 7/;98 4. Nutrient coverage was recreated using Sandi's calc_dis.aml and calc_items.aml to reflect revisions to region 3, NJ, and NE level III ecoregions. Level III region 49 was moved from nutrient region VII to region VIII. 3/99 5. Nutrient region V was expanded to include Level III Ecoregion 42 (previously in region IV). 2/2000 6. Nutrient aggregations were updated according to revised level III ecoregions in AL, GA, SC, MD, NE, KS, IA, and UT. 3/00 7. Nutrient aggregations were updated according to revised level III ecoregions in WA, OR, ID, MT, NV, UT, MO, NC, SC, and GA. 11/00 8. Updated level III lines according to revisions in OR, NV, ID, MS, LA, AL, SC, NC, KY, AR, and WI. 08/2002 jac Reviews_Applied_to_Data 1. Lines and map were reviewed by Jim Omernik 2. Revised lines were reviewed by Jim Omernik 3. Revised lines were reviewed by Jim Omernik 4. Revised lines were reviewed by Alan Woods and Glenn Griffith 5. Regional changes were approved by Jim Omernik. 2/2000 6. Revised lines were reviewed by Alan Woods and Glenn Griffith 7. Revised lines were reviewed by Jim Omernik 8. Revisions were reviewed by Glenn Griffith, 8/2002 Related_Spatial_and_Tabular_Data_Sets NUTR.LUT - contains items DIS (Nutrient code) and SYMBOL (Lookup symbol) (This lookup table used US_NUTR_AGG.SHD) (Note: this is a custum shadeset because some colors were altered in adobe illu References Gallant, A.L., T.R. Whittier, D.P. Larsen, J.M. Omernik, and R.M. Hughes. 1989. Regionalization as a tool for managing environmental resources. EPA/600/3-89/060. U.S. Environmental Protection Agency, Environmental Research Laboratory, Corvallis,OR. 152p. Gallant, A.L., E.F. Binnian, J.M. Omernik, and M.B. Shasby. 1995. Ecoregions of Alaska. USGS Professional Paper 1567. 73 p. Omernik, J.M. 1987. Ecoregions of the conterminous United States. Map Supplement (scale 1:7,500,000) (map now updated, see U.S. Environmental Protection Agency, 1995). Annals of the Association of American Geographers 77(1):118-125. Omernik, J.M. 1995. Ecoregions: A spatial framework for environmental management. In: Biological Assessment and Criteria: Tools for Water Resource Planning and Decision Making. W.S. Davis and T.P. Simon (eds.). Lewis Publishers, Boca Raton, FL. pp. 49-62. U.S. Environmental Protection Agency. 1997. Level III Ecoregions of the Continental United States, Map M-1 (revision of Omernik, 1987). NHEERL, Corvallis, Oregon. Wiken, E. 1986. Terrestrial ecozones of Canada. Environment Canada. Ecological Land Classification Series No. 19. Ottawa, Canada. Notes: Currentness_Reference: Maintenance_and_Update_Frequency: as needed Access_Constraints: n/a Data_Set_Credit: Completeness_Report: Horizontal_Positional_Accuracy_Report: Vertical_Positional_Accuracy_Report: Cloud_Cover: References_Cited Notes Time_Period_of_Content Single_Date/Time Calendar_Date: 1998 Currentness_Reference Status Progress: 1998--revised 2002 Maintenance_and_Update_Frequency Spatial_Domain Bounding_Coordinates West_Bounding_Coordinate: -127.84195221 East_Bounding_Coordinate: -65.3850796 North_Bounding_Coordinate: 48.18681835 South_Bounding_Coordinate: 22.87753347
Keywords Theme Theme_Keyword_Thesaurus: None Theme_Keyword: Aggregations of Level III ecoregions for National Nutrient Assessment & Manageme Place Place_Keyword_Thesaurus: None Place_Keyword: Continental US Stratum Stratum_Keyword_Thesaurus: None Stratum_Keyword: Temporal Temporal_Keyword_Thesaurus: None Temporal_Keyword:
Access_Constraints Use_Constraints for use at 1:250,000 or smaller scales
Data_Set_Credit Security_Information Security_Classification_System: None Security_Classification: UNCLASSIFIED Security_Handling_Description: None
Native_Data_Set_Environment: SunOS UNIX, ARC/INFO version 8.1
Cross_Reference Originator: Omernik, J.M. Publication_Date: 1998 Publication_Time: Title: Aggregations of Level III ecoregions for National Nutrient Assessment & Manageme Edition: 1 Geospatial_Data_Presentation_Form: Nutrient Aggregation Series_Information Series_Name: Issue_Identification: Publication_Information Publication_Place: Publisher: Other_Citation_Details: Online_Linkage: Larger_Work_Citation:
Data_Quality_Information
Attribute_Accuracy Attribute_Accuracy_Report: See Entity_Attribute_InformationQuantitative_Attribute_Accuracy_Assessment Attribute_Accuracy_Value: See Explanation Attribute_Accuracy_Explanation: Attribute accuracy is described, where present, with each attribute defined in the Entity and Attribute Section.
Logical_Consistency_Report: Polygon and chain-node topology present.
Completeness_Report Positional_Accuracy Horizontal_Positional_Accuracy Horizontal_Positional_Accuracy_Report:
Vertical_Positional_Accuracy Vertical_Positional_Accuracy_Report: Lineage: See Supplemental_Information for overview.Process_Steps Process_Step Process_Description: COMSTOCK MAPJOIN US34 NET ALL Source_Used_Citation_Abbreviation:None Process_Date: 20020701 Process_Time: 1725 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020709 Process_Time: 928 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020709 Process_Time: 936 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020709 Process_Time: 950 Source_Produced_Citation_Abbreviation: None 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Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1155 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1156 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1203 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1204 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1213 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1236 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1236 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1238 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1301 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1307 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1307 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1308 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1310 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1314 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1325 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1325 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1335 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1336 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1338 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1341 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1344 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1346 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1349 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1352 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1352 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1354 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1406 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1409 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1410 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1411 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1411 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1412 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1413 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1413 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1417 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1425 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1426 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1438 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1438 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1518 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US34 Source_Used_Citation_Abbreviation:None Process_Date: 20020725 Process_Time: 1527 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK DISSOLVE US34 US_LEVEL3 LEVEL3 NET Source_Used_Citation_Abbreviation:None Process_Date: 20020726 Process_Time: 1611 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US_LEVEL3 Source_Used_Citation_Abbreviation:None Process_Date: 20020726 Process_Time: 1618 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US_LEVEL3 Source_Used_Citation_Abbreviation:None Process_Date: 20020726 Process_Time: 1619 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US_LEVEL3 Source_Used_Citation_Abbreviation:None Process_Date: 20020726 Process_Time: 1620 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US_LEVEL3 Source_Used_Citation_Abbreviation:None Process_Date: 20020726 Process_Time: 1620 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US_LEVEL3 Source_Used_Citation_Abbreviation:None Process_Date: 20020726 Process_Time: 1620 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J404.JIM.US4/DATA/XWORK/US_LEVEL3 Source_Used_Citation_Abbreviation:None Process_Date: 20020726 Process_Time: 1626 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK COPY ../../J404.JIM.US4/DATA/XWORK/US_LEVEL3 Source_Used_Citation_Abbreviation:None Process_Date: 20020731 Process_Time: 1341 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J405.JIM.USREVISE/WORK1/US_LEVEL3 Source_Used_Citation_Abbreviation:None Process_Date: 20020801 Process_Time: 1704 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J405.JIM.USREVISE/WORK1/US_LEVEL3 Source_Used_Citation_Abbreviation:None Process_Date: 20020805 Process_Time: 1220 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J405.JIM.USREVISE/WORK1/US_LEVEL3 Source_Used_Citation_Abbreviation:None Process_Date: 20020805 Process_Time: 1245 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK ARCEDIT /DISK/UBER2/DATA/JOBS/J405.JIM.USREVISE/WORK1/US_LEVEL3 Source_Used_Citation_Abbreviation:None Process_Date: 20020806 Process_Time: 1322 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: EXTERNALALL Source_Used_Citation_Abbreviation:None Process_Date: 20020806 Process_Time: 1333 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK RENAME US_LEVEL3 USECO Source_Used_Citation_Abbreviation:None Process_Date: 20020819 Process_Time: 1701 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK BUILD USECO POLY Source_Used_Citation_Abbreviation:None Process_Date: 20020819 Process_Time: 1717 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK BUILD USECO ARC Source_Used_Citation_Abbreviation:None Process_Date: 20020819 Process_Time: 1717 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK COPY ../USECO/USECO TEMP Source_Used_Citation_Abbreviation:None Process_Date: 20020819 Process_Time: 1733 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK DISSOLVE TEMP US_NUTR_AGGR DIS POLY Source_Used_Citation_Abbreviation:None Process_Date: 20020819 Process_Time: 1733 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK BUILD US_NUTR_AGGR POLY Source_Used_Citation_Abbreviation:None Process_Date: 20020819 Process_Time: 1735 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK BUILD US_NUTR_AGGR ARC Source_Used_Citation_Abbreviation:None Process_Date: 20020819 Process_Time: 1735 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK RENAME US_NUTR_AGGR US_NUTR_AGG Source_Used_Citation_Abbreviation:None Process_Date: 20020822 Process_Time: 1024 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK DOCUMENT US_NUTR_AGG COPY /DISK/GIS4/ECOREGIONS/OMERNIK/US_NUTR_AGG Source_Used_Citation_Abbreviation:None Process_Date: 20020822 Process_Time: 1025 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK DOCUMENT US_NUTR_AGG UPDATE COMSTOCK Source_Used_Citation_Abbreviation:None Process_Date: 20020822 Process_Time: 1035 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: COMSTOCK EXPORT COVER US_NUTR_AGG US_NUTR_AGG.E00 Source_Used_Citation_Abbreviation:None Process_Date: 20020822 Process_Time: 1036 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: NAWQA obtained coverage from EPA for NEET. Imported coverage, renaming it USNECO and re-projected to NAD83. EPA contact info: Jeff Comstock, USEPA/NHEERL/WED, Corvallis, OR (541) 754-4361 (comstock@mercury.cor.epa.gov). The ftp site was: ftp://ftp.epa.gov/wed/ecoregions/us/. The files were us_nutr_agg.e00.Z (National Nutrient GIS coverage in export format) and us_nutr_agg.htm (metadata). Source_Used_Citation_Abbreviation:None Process_Date: 20021108
Spatial_Data_Organization_Information
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information SDTS_Terms_Description SDTS_Point_and_Vector_Object_Type: Point Point_and_Vector_Object_Count: 1138 SDTS_Point_and_Vector_Object_Type: String Point_and_Vector_Object_Count: 1750 SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains' Point_and_Vector_Object_Count: 1139
Spatial_Reference_Information
Horizontal_Coordinate_System_DefinitionPlanar Map_Projection: Map_Projection_Name: ALBERS Longitude_of_Central_Meridian: -96 Latitude_of_Projection_Origin: 23 Latitude_of_First_Standard_Parallel: 29.5 Latitude_of_Second_Standard_Parallel: 45.5 False_Easting: 0.00000 False_Northing: 0.00000 Geodetic Model Horizontal_Datum_Name: NAD83 Ellipsoid_Name: GRS1980 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening: 298.257222
Entity_and_Attribute_Information
Detailed_Description Entity_Type Entity_Type_Label: US_NUTR_AGG.PAT Entity_Type_Definition: Aggregated ecoregions for nutrient assessment & management strategy Entity_Type_Definition_Source: Level III ecoregions of US Attribute: Attribute_Label: - Attribute_Definition: Aggregated ecoregions for nutrient assessment & management strategy Attribute_Definition_Source: Level III ecoregions of US Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: - Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: AREA Attribute_Definition: Area of poly/region in square coverage units Attribute_Definition_Source: Computed Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Positive real numbers Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: PERIMETER Attribute_Definition: Perimeter of poly/region in coverage units Attribute_Definition_Source: Computed Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Positive real numbers Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: US_NUTR_AGG# Attribute_Definition: Internal feature number Attribute_Definition_Source: Computed Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Sequential unique positive integer Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: US_NUTR_AGG-ID Attribute_Definition: User-assigned feature number Attribute_Definition_Source: User-defined Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Integer Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: DIS Attribute_Definition: dissolve code Attribute_Definition_Source: 'Omernik''s ecoregions' Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: 1-14 Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: CODE Attribute_Definition: Roman numeral code Attribute_Definition_Source: 'Omernik''s ecoregions' Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: I-XIV Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: NAME Attribute_Definition: Aggregated ecoregion name Attribute_Definition_Source: Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Entity_Type Entity_Type_Label: US_NUTR_AGG.AAT Entity_Type_Definition: Aggregated level III ecoregion Nutrient assessment & management strategy Entity_Type_Definition_Source: 'Omernik''s ecoregions' Attribute: Attribute_Label: - Attribute_Definition: Aggregated level III ecoregion Nutrient assessment & management strategy Attribute_Definition_Source: 'Omernik''s ecoregions' Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: - Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: FNODE# Attribute_Definition: Internal number of from-node Attribute_Definition_Source: Computed Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Sequential unique positive integer Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: TNODE# Attribute_Definition: Internal number of to-node Attribute_Definition_Source: Computed Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Sequential unique positive integer Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: LPOLY# Attribute_Definition: Internal number of poly to left of arc Attribute_Definition_Source: Computed Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Sequential unique positive integer Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: RPOLY# Attribute_Definition: Internal number of poly to right of arc Attribute_Definition_Source: Computed Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Sequential unique positive integer Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: LENGTH Attribute_Definition: Length of arc in coverage units Attribute_Definition_Source: Computed Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Positive real numbers Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: US_NUTR_AGG# Attribute_Definition: Internal feature number Attribute_Definition_Source: Computed Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Sequential unique positive integer Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: US_NUTR_AGG-ID Attribute_Definition: User-assigned feature number Attribute_Definition_Source: User-defined Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Integer Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source:Overview_Description Entity_and_Attribute_Overview Attributes: Polygon coverage (.PAT) Regions: DIS CODE NAME 1 I Willamette and Central Valleys 2 II Western Forested Mountains 3 III Xeric West 4 IV Great Plains Grass and Shrublands 5 V Central Cultivated Great Plains 6 VI Corn Belt and Northern Great Plains 7 VII Mostly Glaciated Dairy Region 8 VIII Nutrient Poor Largely Glaciated Upper Midwest and Northeast 9 IX Southeastern Temperate Forested Plains and Hills 10 X Texas-Louisiana Coastal and Mississippi Alluvial Plains 11 XI Central and Eastern Forested Uplands 12 XII Southern Coastal Plain 13 XIII Southern Florida Coastal Plain 14 XIV Eastern Coastal Plain Entity_and_Attribute_Detail_Citation: Not Available
Distribution_Information
Metadata_Reference_Section
Metadata_Date: 19020822 Metadata_Contact: Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: 19940608 Metadata_Time_Convention: Local Time Metadata_Security_Information: Metadata_Security_Classification_System: None Metadata_Security_Classification: UNCLASSIFIED Metadata_Security_Handling_Description: None
Last modified: 02-08-22.10:39:29.Thu