China Historical GIS System Demonstration

Lamont Forum, Harvard, Aug 2001

Merrick Lex Berman

GIS Layers

Sample CHGIS data

Tan Qixiang’s “Historical Atlas of China”

CHGIS base dataset layers

New administrative unit datasets

Map sources

Settlements as points

Boundary polygons

Using CHGIS spatial data with other GIS data

CHGIS layers

hydro layers

DEM layers

OVERLAY

CHGIS data with hydro & DEM overlays

Toponym Search

Coding to distinguish unique places

Online Toponym Search Engine Model

Search Engine Form

Results Contain Links to Launch New Searches

Embedded Search Requests

Embedding New Queries in URLs

How to Embed CGI Calls in URLs

Request Launches Automatic Search

Mapserver Zooms to Requested Extent

Query Feature - Shows Attributes

Mapservers

Hartwell GIS - Geospatial Library

Hartwell GIS - Zoomed in with Info Request

Zoomed in Showing Prefectures

Zoomed in Showing Counties

Southern Song overlay on Tang - Counties

CHGIS 1820 Placename Searches

CHGIS for Historical Data Display

Approximate Boundaries - Thiessen Polygons

Approximate Boundaries - Thiessen Polygons

China Historical GIS Project

website: fas.harvard.edu/~chgis

email: chgis@fas.harvard.edu