Jonathan Schroeder NGIS Time Series Tables

Transcript

1. Census Time Series Tables from NHGIS An Overview for Cartographers Jonathan Schroeder
2. NHGIS Census tables and GIS boundary files, 1790 to the present
8. Nominal integration
9. Nominal integration
10. Geographic standardization
11. 2000 block population: 1,624
13. 27% 73% Land area
14. How often is uncertainty large? 2010 census areas N % Block Groups 33,361 15.3 Tracts 8,542 11.7 Range > 10% of max
15. How often is uncertainty large? 2010 census areas N % N % Block Groups 33,361 15.3 9,955 4.6 Tracts 8,542 11.7 1,171 1.6 Range > 10% of max Range > 50% of max
16. How often is uncertainty large? 2010 census areas N % N % Block Groups 33,361 15.3 9,955 4.6 Tracts 8,542 11.7 1,171 1.6 County Subdivisions 6,718 18.8 789 2.2 ZCTAs 13,448 40.8 2,134 6.5 Places 11,621 39.7 3,341 11.4 Urban Areas 1,717 48.1 78 2.2 Counties 5 0.2 0 0.0 CBSAs 0 0.0 0 0.0 Cong. Dists. (113th) 0 0.0 0 0.0 States 0 0.0 0 0.0 Range > 10% of max Range > 50% of max
17. 27% 73% Land area
18. 44% 56% Developed land NLCD 2001 5% impervious
19. 46% 54% Land near roads 300 ft buffer around 2010 TIGER/Line residential roads
20. 44% 56% Developed land near roads
21. 40.6% 59.4% 2010 block densities near roads “Refined TDW”
23. Hybrid model  Weighted RMSE of estimated proportions when disaggregating from 2000 block pairs…  6% lower than refined TDW  (2010 block densities near roads)  25% lower than binary dasymetric model  (2001 developed land near roads)  34% lower than AW  (all land)
24. Geographically standardized time series  65 tables: 2000 & 2010 data for 2010 census units  Geographic levels:  states, counties, tracts, block groups, county subdivisions, places, congressional districts, CBSAs, urban areas , ZCTAs  Short-form counts only Next up… 1. 1990 block-based counts for 2010 areas 2. 2000 long-form counts for 2012 & 2017 areas 3. 1990 “ “ 4. 1980 …
25. Nominally integrated time series  233 tables  Geographic levels:  nation, regions, divisions, states, counties, tracts, county subdivisions, places  Year ranges…  Mostly within 1970 to 2010 or 2008-2012  Total Population back to 1790 & Persons by Sex back to 1820
26. # Nom. # Std. Tabulation Type 1 1 Total Households 1 1 Households by Household Type 2 2 Households by Household Type by Household Size 1 1 Total Families 2 1 Persons in Families 2 1 Families by Family Type by Presence and Age of Own Children 10 1 Persons by Household Type by Relationship to Householder 11 4 Persons by Household Type by Relationship to Householder by Age 1 1 Total Housing Units 2 0 Housing Units by Urban/Rural Status 6 3 Housing Units by Occupancy/Vacancy/Tenure 2 1 Persons by Housing Tenure 6 2 Occupied Housing Units (by Tenure) by Race of Householder 3 0 Occupied Housing Units (by Tenure) by Household Size # Nom. # Std. Tabulation Type 3 1 Total Persons (1790-2012) 2 0 Persons by Urban/Rural Status 2 1 Persons by Sex (1820-2012) 4 2 Persons by Age 1 0 Median Age of Persons 4 2 Persons by Sex by Age 1 0 Median Age of Persons by Sex 10 3 Persons by Race 4 1 Persons by Race by Sex 28 7 Persons by Race by Age 13 7 Persons by Race by Sex by Age 4 1 Persons by Hispanic or Latino Origin 2 1 Persons by Hispanic or Latino Origin by Sex by Age 4 3 Persons by Hispanic or Latino Origin by Race 6 4 Persons by Household, Family and Group Quarters Type 5 3 Persons by Household and Group Quarters Type by Sex 11 7 Persons by Household and Group Quarters Type by Age 9 3 Persons by Household and Group Quarters Type by Sex by Age Tabulation types— full-count basis
27. # Tables Tabulation Type 4 Households by Income in Previous Year 1 Median Household Income in Previous Year 4 Families by Income in Previous Year 1 Median Family Income in Previous Year 1 Per Capita Income in Previous Year 1 Persons for Whom Poverty Status is Determined 2 Persons by Poverty Status in Previous Year 3 Persons by Ratio of Income to Poverty Level in Previous Year 6 Persons by Poverty Status in Previous Year by Age # Tables Tabulation Type 7 Persons by Marital Status by Sex (by Age) 1 Persons by Nativity 13 Persons by Nativity by Place of Birth 5 Persons by Educational Attainment 7 Persons by Educational Attainment by Sex (by Age) 5 Persons by Labor Force, Employment and Armed Forces Status (by Age) 6 Persons by Labor Force, Employment and Armed Forces Status by Sex (by Age) 3 Workers by Means of Transportation to Work Tabulation tables — sample basis 298 tables 49 tabulation types ~3,800 time series ~29,000 links to source variables
29. Counties
30. Census Tracts
31. Block Groups
33. Dots indicate upper & lower bounds
36. Population Change in Urbanized Areas 2000–2010
37. Detroit Area Poverty Rates by County Subdivision 1970
38. Detroit Area Poverty Rates by County Subdivision 1980
39. Detroit Area Poverty Rates by County Subdivision 1990
40. Detroit Area Poverty Rates by County Subdivision 2000
41. Detroit Area Poverty Rates by County Subdivision 2008-2012
42. Detroit Area Poverty Rates by County Subdivision 1970
43. National Science Foundation NIH – Eunice Kennedy Shriver National Institute of Child Health and Human Development NHGIS team: David Van Riper Kevin Horne Jason Borah Jacob Wellington …and our many research assistants!
44. Geolytics NCDB US2010 LTDB NHGIS Standardized TSTs Tracts with codes for larger areas Tracts with codes for larger areas 10 levels 1970–2010 1970–2010 Start with 2000-2010 Around 1,000 variables per year, semi-aligned categories About 83 variables, aligned categories 1,000’s of variables in 100’s of tables, aligned categories, selected by year range No error bounds No error bounds Include lower and upper bounds 2000 block data: Area-weighted (?) 2000 block data: Area-weighted* 2000 block data: Dasymetrically refined, 2010-density-weighted