1 / 15

CENSUS MAPPING – THE PHILIPPINE EXPERIENCE

CENSUS MAPPING – THE PHILIPPINE EXPERIENCE. Vincent Olaivar National Statistics Office Philippines. Background. The Philippines 7,100 island 287,564 sq. km. 17 Regions 81 Provinces 1,500 municipalities about 42,000 Barangays about 64,000 Enumeration Areas (EAs). Background.

yates
Download Presentation

CENSUS MAPPING – THE PHILIPPINE EXPERIENCE

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. CENSUS MAPPING – THE PHILIPPINE EXPERIENCE Vincent Olaivar National Statistics Office Philippines

  2. Background The Philippines • 7,100 island • 287,564 sq. km. • 17 Regions • 81 Provinces • 1,500 municipalities • about 42,000 Barangays • about 64,000 Enumeration Areas (EAs)

  3. Background EA determination/delineation Factors considered: • Population size of barangay • Duration of census operation

  4. Mapping Unit • Mapping standards group • Sets standards for preparing maps and Geographic Codes • Conducts map inventory • Evaluates base maps • Cartography group • Constructs maps based on mapping standards • Prepares enumeration area (EA) maps • Map reproduction group • Reproduces maps that will be used in census enumeration and supervision Background

  5. Background The NSO Mapping Unit • 21 permanent personnel • 10 personnel involved in GIS mapping • Over 1,000 personnel hired during pre-census mapping • Manifold software • 37 GPS units

  6. 2000 Census Experience • Digitized Aerial Maps • Used topograhic aerial photography • Piloted in Metro Manila • Contracted by a domestic and private corporation • January to September 2000 .

  7. 2000 Census Experience • Problems Encountered (maps using aerial photography) • Maps not delivered on time • Delineation/Demarcation not accurate • Lack detailed street names and landmarks

  8. 2000 Census Experience • Problems Encountered (sketch map-based) • Base maps used are not very accurate • Most have only the boundaries digitized • Those with street patterns and landmarks are not very accurate

  9. 2007 Census Experience • Satellite Image Maps • Used available Google Earth satellite images • Converted some of these images into GIS maps using Manifold .

  10. 2007 Census Experience • Problems Encountered (Satellite image maps) • Google Earth map images not available in most of the rural areas • Some images are cloud-blurred

  11. 2007 Census Experience • GPS hand-held devices • Did some studies/ comparison on GPS and GIS positional accuracy and consistency • Sketch maps update (incl. land mark identification and road tracking) .

  12. 2007 Census Experience • Problems Encountered • (GPS hand-held devices) • Number of units not enough to update all sketch maps • Weather dependent • Expensive • Field-work intensive

  13. 2010 Census Plans • Avail more GPS unit • Maximize use of satellite images since these images are quite accurate • Use of GPS in updating sketch map-based GIS maps • Use of GIS maps in pre-enumeration and enumeration activities • Capitalize on GIS development

  14. 2010 Census Plans • Capitalize on GIS development in the Local Government Units

  15. THANK YOU!!! v.olaivar@census.gov.ph www.census.gov.ph

More Related