ISE GIS Research Lab
ISE GIS Research Lab
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: Institute for a Sustainable Environment, University of Oregon (ISE) Publication_Date: March 1999 Title: 1990 Population and Population Density Edition: 1 Geospatial_Data_Presentation_Format: Spatial dataset Publication_Information Publication_Place: Eugene Publisher: ISE Online_Linkage: PNWERCDescription Abstract 1990 population and population density reported by census block. Purpose For study of 1990 population within the hydrologically bounded Willamette River Basin study area. Supplemental_Information Procedures_Used 1990 POPULATION Data sets were created from SSCGIS sources at the tract, block group and block levels. We created new fields in each of these in order to produce unique identifiers for each feature, for example, creating a single field ctb in the block coverage BLKPOP which combined the county, tract, and block numbers. We also created new data fields by processing various of the original attributes, and also joined to these tables data from the summary tape files as appropriate to the level of spatial reporting unit of the summary data. An important issue in creating a population database for this project is that the hydrologic unit defining the study area, the Willamette River Basin, does not necessarily result in boundaries that are coincident with census reporting unit boundaries. Thus, census blocks may be split in two by the study area boundary. In some cases the study area boundary can wander in and out of a census block creating multiple fragments within the study area, while leaving, perhaps, the majority of the block outside; the reverse occurs as well, in which the block lies primarily within the study area, but the study area boundary splits it into multiple parts. Fragmentary polygons are produced at the study area edge by another phenomenon as well, differences in the locations of points in space due to the use of different sources and methods in the production of, for example, the hydrologic unit boundary, than of the census units. In this case both boundaries nominally do agree, but inevitable differences in how they are mapped produce usually small "sliver" polygons when they are combined. The initial result of a clipping operation on the census unit geometry is to leave each of the fragments of an original unit having all of the attribute values of the parent polygon - each reports the entire population count of the parent unit from which they arose. A summing of population from all of these units would overstate the total. Because the census blocks are the spatially smallest reporting units for population, they provided the highest spatial resolution with which 1990 population can be mapped. A series of fields were created in the blkpop coverage, but not in the block group and tract coverages, in order to address the two problems mentioned above: OLDAREA, AREADIFF, NAREADIFF, PRORFLAG, HU100P. Together these fields were used to isolate sliver polygons, and for those remaining, a total of approximately 265 out of about 46,000, population was "pro-rated" on an area-weighted basis: The fraction of the area of the census block remaining in the study area was multiplied by the total population count for the block and that value placed in a new field called PRORPOP. For those census blocks not prorated, the original value for population count was transferred to the POP100P field. Thus, this field constitutes the adjusted population count for each census block or fraction of one contained in the study area. Although this approach minimized certain types of error created by spatial operations, it is clear that human population is not distributed evenly within a census block and that the treatment chosen here is simply the best use that can feasibly be made of the available data. Census block sizes, however, are small where population is dense, and large where density is low, thereby acheiving a rough normalization of population distribtuion within a block. Revisions None Reviews_Applied_to_Data Reviews by in-house staff, two map product reviews by outside experts, and EPA peer review of the Willamette River Basin Planning Atlas. Related_Spatial_and_Tabular_Data_Sets STFI1B, BGAGE, STF1A, documented separately. References_Cited None Notes None Time_Period_of_Content Range_of_Dates/Times Beginning_Date: 1990 Ending_Date: 1990 Currentness_Reference This data set was compiled during 1997. Status Progress: Final Maintenance_and_Update_Frequency No updates are planned. Spatial_Domain Bounding_Coordinates West_Bounding_Coordinate: -123.76807691 East_Bounding_Coordinate: -121.63019973 North_Bounding_Coordinate: 45.93876701 South_Bounding_Coordinate: 43.35062451
Keywords Theme Theme_Keyword_Thesaurus: None Theme_Keyword: 1990 census block population density Place Place_Keyword_Thesaurus: None Place_Keyword: Willamette River Basin Stratum Stratum_Keyword_Thesaurus: None Stratum_Keyword: Temporal Temporal_Keyword_Thesaurus: None Temporal_Keyword:
Access_Constraints n/a Use_Constraints TIGER line spatial accuracy is variable, some blocks are artifacts of map production and generate unrealistic population density values. Point_of_Contact: See Distribution_Information for contact information.
Data_Set_Credit Joge Goicochea, Allan Branscomb Security_Information Security_Classification_System: None Security_Classification: UNCLASSIFIED Security_Handling_Description: None
Native_Data_Set_Environment: SunOS UNIX, ARC/INFO version 7.1.2
Cross_Reference Originator: Oregon State Service Center for Geographic Information Systems (SSCGIS) Publication_Date: 1992 Publication_Time: Title: 1990 Tiger files and Census Data Edition: Geospatial_Data_Presentation_Form: Vector Series_Information Series_Name: Issue_Identification: Publication_Information Publication_Place: Salem OR Publisher: SSCGIS Other_Citation_Details: Online_Linkage: http://www.sscgis.or.gov/data/themes.html 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 topology present.
Completeness_Report See Procedures used. Positional_Accuracy Horizontal_Positional_Accuracy Horizontal_Positional_Accuracy_Report: Unchanged from 1990 US Census Bureau TIGER standards.
Quantitative_Horizontal_Positional_Accuracy_Assessment: Horizontal_Positional_Accuracy_Value: meters Horizontal_Positional_Accuracy_Explanation: Resolution as reported
Vertical_Positional_Accuracy Vertical_Positional_Accuracy_Report: Unchanged from 1990 US Census Bureau TIGER standards. Lineage: See Supplemental_Information for overview.Process_Steps Process_Step Process_Description: JORGEGOI COPY /SCRATCH/WRBCO/BLOCKCOV Source_Used_Citation_Abbreviation:None Process_Date: 19961222 Process_Time: 1237 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: JORGEGOI COPY /ISE/OR/BLOCKCOV BLOCKCOV Source_Used_Citation_Abbreviation:None Process_Date: 19970117 Process_Time: 1152 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: JORGEGOI COPY BLOCKCOV BLOCKCOVBAK Source_Used_Citation_Abbreviation:None Process_Date: 19970117 Process_Time: 1250 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: JORGEGOI COPY BLOCKCOVBAK BLOCKCOV Source_Used_Citation_Abbreviation:None Process_Date: 19970117 Process_Time: 1256 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: JORGEGOI RENAME BLOCKCOV STF1BX Source_Used_Citation_Abbreviation:None Process_Date: 19970117 Process_Time: 1337 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: JORGEGOI COPY STF1BX STF1B/STF1BX Source_Used_Citation_Abbreviation:None Process_Date: 19970117 Process_Time: 1449 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: JORGEGOI PROJECT COVER STF1BX STF1BXU /ISE/PRJ/LAM2UTM.PRJ Source_Used_Citation_Abbreviation:None Process_Date: 19970129 Process_Time: 1334 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: JORGEGOI CLEAN STF1BXU Source_Used_Citation_Abbreviation:None Process_Date: 19970129 Process_Time: 1424 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: JORGEGOI IDENTITY STF1BXU CLIPU ABDENSITY POLY Source_Used_Citation_Abbreviation:None Process_Date: 19970129 Process_Time: 1530 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: JORGEGOI CLIP ABDENSITY CLIPU ABSTF1B Source_Used_Citation_Abbreviation:None Process_Date: 19970129 Process_Time: 2057 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: JORGEGOI BUILD ABSTF1B Source_Used_Citation_Abbreviation:None Process_Date: 19970129 Process_Time: 2106 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: ALLANB COPY ABSTF1B /ISE/WRB/STF1B Source_Used_Citation_Abbreviation:None Process_Date: 19970227 Process_Time: 1049 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: ALLANB COPY /ISE/WRB/STF1B STF1B Source_Used_Citation_Abbreviation:None Process_Date: 19970428 Process_Time: 1000 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: ALLANB ARCEDIT /ISE2/STF1B Source_Used_Citation_Abbreviation:None Process_Date: 19970428 Process_Time: 1013 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: ALLANB RENAME STF1B BLKPOP Source_Used_Citation_Abbreviation:None Process_Date: 19970428 Process_Time: 1019 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: JORGEGOI COPY BLKPOP /ISE/WRB/BLKPOP Source_Used_Citation_Abbreviation:None Process_Date: 19971008 Process_Time: 1604 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: JORGEGOI EXPORT COVER BLKPOP BLKPOP.E00 Source_Used_Citation_Abbreviation:None Process_Date: 19971229 Process_Time: 1635 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: ALLANB BUILD BLKPOP Source_Used_Citation_Abbreviation:None Process_Date: 19980309 Process_Time: 1208 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: ALLANB COPY /ISE3/WRB/BLKPOP BLKPOP Source_Used_Citation_Abbreviation:None Process_Date: 19990205 Process_Time: 844 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: ALLANB DOCUMENT BLKPOP CREATE ALLANB Source_Used_Citation_Abbreviation:None Process_Date: 19990205 Process_Time: 1009 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: ALLANB DOCUMENT BLKPOP UPDATE ALLANB Source_Used_Citation_Abbreviation:None Process_Date: 19990205 Process_Time: 1118 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: ALLANB DOCUMENT BLKPOP UPDATE ALLANB Source_Used_Citation_Abbreviation:None Process_Date: 19990208 Process_Time: 819 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: ALLANB DOCUMENT BLKPOP UPDATE ALLANB Source_Used_Citation_Abbreviation:None Process_Date: 19990209 Process_Time: 831 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: ALLANB DOCUMENT BLKPOP UPDATE ALLANB Source_Used_Citation_Abbreviation:None Process_Date: 19990209 Process_Time: 832 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: ALLANB DOCUMENT BLKPOP UPDATE ALLANB Source_Used_Citation_Abbreviation:None Process_Date: 19990224 Process_Time: 719 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: ALLANB DOCUMENT BLKPOP UPDATE ALLANB Source_Used_Citation_Abbreviation:None Process_Date: 19990224 Process_Time: 721 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: ALLANB DOCUMENT BLKPOP UPDATE ALLANB Source_Used_Citation_Abbreviation:None Process_Date: 19990224 Process_Time: 725 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: DAVER DOCUMENT BLKPOP UPDATE DAVER Source_Used_Citation_Abbreviation:None Process_Date: 19990225 Process_Time: 810 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: ALLANB DOCUMENT BLKPOP UPDATE ALLANB Source_Used_Citation_Abbreviation:None Process_Date: 19990301 Process_Time: 1014 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: ALLANB DOCUMENT BLKPOP UPDATE ALLANB Source_Used_Citation_Abbreviation:None Process_Date: 19990301 Process_Time: 1200 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: ALLANB DOCUMENT BLKPOP UPDATE ALLANB Source_Used_Citation_Abbreviation:None Process_Date: 19990302 Process_Time: 1321 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: ALLANB DOCUMENT BLKPOP UPDATE ALLANB Source_Used_Citation_Abbreviation:None Process_Date: 19990302 Process_Time: 1406 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: MELRICH DOCUMENT BLKPOP UPDATE MELRICH Source_Used_Citation_Abbreviation:None Process_Date: 19990303 Process_Time: 1835 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: ALLANB DOCUMENT BLKPOP UPDATE ALLANB Source_Used_Citation_Abbreviation:None Process_Date: 19990304 Process_Time: 909 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: ALLANB DOCUMENT BLKPOP UPDATE ALLANB Source_Used_Citation_Abbreviation:None Process_Date: 19990304 Process_Time: 913 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: ALLANB DOCUMENT BLKPOP UPDATE ALLANB Source_Used_Citation_Abbreviation:None Process_Date: 19990304 Process_Time: 924 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: ALLANB DOCUMENT BLKPOP UPDATE ALLANB Source_Used_Citation_Abbreviation:None Process_Date: 19990304 Process_Time: 925 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: ALLANB DOCUMENT BLKPOP UPDATE ALLANB Source_Used_Citation_Abbreviation:None Process_Date: 19990304 Process_Time: 932 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: ALLANB DOCUMENT BLKPOP UPDATE ALLANB Source_Used_Citation_Abbreviation:None Process_Date: 19990306 Process_Time: 1713 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: ALLANB DOCUMENT BLKPOP UPDATE ALLANB Source_Used_Citation_Abbreviation:None Process_Date: 19990307 Process_Time: 1016 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: DAVER DOCUMENT BLKPOP UPDATE DAVER Source_Used_Citation_Abbreviation:None Process_Date: 19990309 Process_Time: 827 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: ALLANB DOCUMENT BLKPOP UPDATE ALLANB Source_Used_Citation_Abbreviation:None Process_Date: 19990311 Process_Time: 724 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: ALLANB DOCUMENT BLKPOP UPDATE ALLANB Source_Used_Citation_Abbreviation:None Process_Date: 19990316 Process_Time: 848 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: ALLANB DOCUMENT BLKPOP UPDATE ALLANB Source_Used_Citation_Abbreviation:None Process_Date: 19990316 Process_Time: 850 Source_Produced_Citation_Abbreviation: None Process_Step Process_Description: ALLANB DOCUMENT BLKPOP UPDATE ALLANB Source_Used_Citation_Abbreviation:None Process_Date: 19990316 Process_Time: 859 Source_Produced_Citation_Abbreviation: None
Cloud_Cover n/a
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: 46077 SDTS_Point_and_Vector_Object_Type: String Point_and_Vector_Object_Count: 114799 SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains' Point_and_Vector_Object_Count: 46078
Spatial_Reference_Information
Horizontal_Coordinate_System_DefinitionPlanar Grid_Coordinate_System Grid_Coordinate_System_Name: Universal_Transverse_Mercator (UTM) Zone_Number: 10 Planar_Distance_Units: METERS Geodetic Model Horizontal_Datum_Name: Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6,378,206.4 Denominator_of_Flattening: 294.98
Entity_and_Attribute_Information
Detailed_Description Entity_Type Entity_Type_Label: BLKPOP.PAT Entity_Type_Definition: Polygon Attribute Table Entity_Type_Definition_Source: TIGER, STF1B Attribute: Attribute_Label: - Attribute_Definition: Polygon Attribute Table Attribute_Definition_Source: TIGER, STF1B 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: BLKPOP# 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: BLKPOP-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: STF1BXU# Attribute_Definition: Attribute_Definition_Source: Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: STF1BXU-ID Attribute_Definition: Attribute_Definition_Source: Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: COUNTY Attribute_Definition: FIPS county code Attribute_Definition_Source: Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: TRACT Attribute_Definition: Census tract identifier, within county Attribute_Definition_Source: Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: BLOCK Attribute_Definition: Block identifier, within tract Attribute_Definition_Source: Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: DENSITY Attribute_Definition: Persons per square mile Attribute_Definition_Source: Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: CTB Attribute_Definition: ISE added concatenation of county, tract, and block identifiers Attribute_Definition_Source: Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: URBANRUR Attribute_Definition: Urban/rural flag Attribute_Definition_Source: Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: URBAREA Attribute_Definition: Area of block within urban zone Attribute_Definition_Source: Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: AREALAND Attribute_Definition: Area of block not in water Attribute_Definition_Source: Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: AREAWAT Attribute_Definition: Area of block in water Attribute_Definition_Source: Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: POP100 Attribute_Definition: Population of block Attribute_Definition_Source: Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: NTRACTBNA Attribute_Definition: ISE-created field: numeric tract-block Attribute_Definition_Source: Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: OLDAREA Attribute_Definition: ISE added: Original area of block before clipping by study area boundary Attribute_Definition_Source: Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: AREADIFF Attribute_Definition: ISE added: Difference between orignal and clippped area of block Attribute_Definition_Source: Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: PERDIFFERENCE Attribute_Definition: ISE added: Percent difference in area between full and clipped block Attribute_Definition_Source: Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: PRORFLAG Attribute_Definition: ISE added: Indicates if the block population will be prorated by area Attribute_Definition_Source: Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: HU100P Attribute_Definition: Census bureau STF1B population field Attribute_Definition_Source: Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: URBANRURJ Attribute_Definition: ISE added: Urban-rural classification flag Attribute_Definition_Source: Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: DENSITYP Attribute_Definition: ISE added: Density after area-weighted population computed Attribute_Definition_Source: Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: POP100P Attribute_Definition: ISE added: Area prorated population Attribute_Definition_Source: Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: NAREADIFF Attribute_Definition: ISE added: Difference in area between clipped and non-clipped block Attribute_Definition_Source: Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: DENLEVEL Attribute_Definition: ISE added: Population density classification Attribute_Definition_Source: Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: DENLVLAR Attribute_Definition: ISE added: Density level classification Attribute_Definition_Source: Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source:Overview_Description Entity_and_Attribute_Overview Arc: items blkpop.pat COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME INDEXED? 1 AREA 8 18 F 5 - 9 PERIMETER 8 18 F 5 - 17 BLKPOP# 4 5 B - - 21 BLKPOP-ID 4 5 B - - 25 STF1BXU# 4 5 B - - 29 STF1BXU-ID 4 5 B - - 33 COUNTY 3 3 C - - 36 TRACT 6 6 I - - 42 BLOCK 4 4 C - - 46 DENSITY 7 7 I - - 53 CTB 16 16 C - - 69 URBANRUR 1 1 C - - 70 URBAREA 4 4 C - - 74 AREALAND 8 10 F 0 - 82 AREAWAT 8 10 F 0 - 90 POP100 8 9 F 0 - 98 NTRACTBNA 8 16 F 0 - 106 OLDAREA 16 16 N 3 - 122 AREADIFF 16 16 N 3 - 138 PERDIFFERENCE 12 12 N 3 - 150 PRORFLAG 3 3 C - - 153 HU100P 8 8 N 3 - 161 URBANRURJ 4 4 I - - 165 DENSITYP 8 8 N 3 - 173 POP100P 8 8 I - - 181 NAREADIFF 16 16 N 3 - 197 DENLEVEL 2 2 I - - 199 DENLVLAR 10 10 I - - Entity_and_Attribute_Detail_Citation: Not Available
Distribution_Information
Distributor Contact_Person_Primary Contact_Person: David Hulse Contact_Organization: Institute for a Sustainable Environment Contact_Position: Director Contact_Address Address_Type: mailing and physical address Address: 5249 University of Oregon City: Eugene State_or_Province: OR Postal_Code: 97403-5249 Country: USA Contact_Voice_Telephone: 541-346-3634 Contact_Facsimile_Telephone: 541-346-3626 (Attn: D. Hulse) Contact_Electronic_Mail_Address: dhulse@darkwing.uoregon.edu Hours_of_Service: 8:30 A - 4:30 P Resource_Description: Data sets produced at UO for the EPA PNW ERC Distribution_Liability: none Standard_Order_Process Digital_Form Digital_Transfer_Information Format_Name: ArcInfo 7.1.2 Unix raster grids Format_Information_Content: AI 7.1.2 UNIX workspace in tar format File_Decompression_Technique: unix compress Format_Name: ArcInfo Unix 7.1.2 vector coverages Format_Information_Content: Export format File_Decompression_Technique: Digital_Transfer_Option Online_Option Computer_Contact_Information Network_Address Network_Resource_Name: OSU-USDA Forest Science Laboratory. Available_Time_Period Beginning_Date/Time: March 1999 Ending_Date/Time: Open
Metadata_Reference_Section
Metadata_Date: 19990316 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: David Hulse Contact_Organization: Institute for a Sustainable Environment Contact_Position: Director Contact_Address: Address_Type: mailing and physical address Address: 5249 University of Oregon City: Eugene State_or_Province: OR Postal_Code: 97403-5249 Country: USA Contact_Voice_Telephone: 541-346-3634 Contact_Facsimile_Telephone: 541-346-3626 (Attn: D. Hulse) Contact_Electronic_Mail_Address: dhulse@darkwing.uoregon.edu Hours_of_Service: 8:30 A - 4:30 P 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: 99-03-16.09:00:14.Tue