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Chinatown, San Francisco, California 1885 (Raster Image)

  • Identification Information
  • Data Quality Information
  • Spatial Data Organization Information
  • Spatial Reference Information
  • Entity and Attribute Information
  • Distribution Information
  • Metadata Reference Information
Identification Information
Citation
Originator
Harvard Map Collection, Harvard College Library
Originator
Farwell, W. B.
Originator
Kunkler, John E.
Originator
Pond, E. B.
Publication Date
200801
Title
Chinatown, San Francisco, California 1885 (Raster Image)
Geospatial Data Presentation Form
map
Publication Information
Publication Place
Cambridge, Massachusetts
Publisher
Harvard Map Collection, Harvard College Library
Online Linkage
https://hgl.harvard.edu/catalog/harvard-g4364-s5-2c45g46-1885-f3
Abstract
This layer is a georeferenced raster image of the historic paper map entitled: Official map of Chinatown in San Francisco, prepared under the supervision of the special committee of the board of supervisors, July 1885, W.B. Farwell, John E. Kunkler, E.B. Pond. It was engraved printed by Bosqui Eng. Print Co. in 1885. Scale [1:480]. This image consists of images of a two sheet source map that have been stitched together using image editing software to create one image. The image inside the map neatline is georeferenced to the surface of the earth and fit to the California Zone III State Plane Coordinate System NAD83 (in Feet) (Fipszone 0403). All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This cadastral map shows features such as roads, buildings with street addresses and types of businesses, and more. Buildings colored to show: general Chinese occupancy, Chinese gambling houses, Chinese prostitution, Chinese opium resorts, Chinese Joss houses, and White prostitution. This layer is part of a selection of digitally scanned and georeferenced historic maps from The Harvard Map Collection as part of the Imaging the Urban Environment project. Maps selected for this project represent major urban areas and cities of the world, at various time periods. These maps typically portray both natural and manmade features at a large scale. The selection represents a range of regions, originators, ground condition dates, scales, and purposes.
Purpose
Historic paper maps can provide an excellent view of the changes that have occurred in the cultural and physical landscape. The wide range of information provided on these maps make them useful in the study of historic geography, and urban and rural land use change. As this map has been georeferenced, it can be used in a GIS as a source or background layer in conjunction with other GIS data.
Temporal Extent
Currentness Reference
source map publication date
Time Instant
1885
Bounding Box
West
-122.408772
East
-122.404225
North
37.798098
South
37.791777
Theme Keyword
Maps
Real property
Human settlements
Cities and towns
Land use
Landforms
Infrastructure (Economics)
Transportation
Theme Keyword Thesaurus
LCSH
ISO Topic Category
imageryBaseMapsEarthCover
planningCadastre
Place Keyword
California
San Francisco
Chinatown
Place Keyword Thesaurus
GNIS
Temporal Keyword
Access Restrictions
None
Use Restrictions
For educational, non-commercial use only.
Status
Complete
Maintenance and Update Frequency
None planned
Point of Contact
Contact Organization
Harvard Map Collection, Harvard College Library
Delivery Point
Harvard Map Collection
Delivery Point
Pusey Library
Delivery Point
Harvard University
City
Cambridge
State
MA
Postal Code
02138
Country
USA
Contact Telephone
617-495-2417
Contact Facsimile Telephone
617-496-0440
Contact Electronic Mail Address
hgl_ref@hulmail.harvard.edu
Hours of Service
Monday - Friday, 9:00 am - 4:00 pm EST-USA
Native Data Set Environment
ESRI ArcCatalog 9.2
Data Quality Information
Attribute Accuracy Report
The georeferenced raster is a faithfully reproduced digital image of the original source map. Some differences may be detected between the source graphic used and the raster image due to the RGB values assigned that particular color. The intent is to recreate those colors as near as possible.
Completeness Report
Data completeness for raster digital image files reflect content of the source graphic. Features may have been eliminated or generalized on the source graphic due to scale and legibility constraints
Horizontal Positional Accuracy Report
The horizontal positional accuracy of a raster image is approximately the same as the accuracy of the published source map. The lack of a greater accuracy is largely the result of the inaccuracies with the original measurements and possible distortions in the original paper map document. There may also be errors introduced during the digitizing and georeferencing process. In most cases, errors in the raster image are small compared with sources of error in the original map graphic. The RMS error for this map is 3.48788 feet. This value describes how consistent the transformation is between the different control points (links). The RMS error is only an assessment of the accuracy of the transformation.
Lineage
Source
Originator
Farwell, W. B.
Originator
Kunkler, John E.
Originator
Pond, E. B.
Publication Date
1885
Title
Official map of Chinatown in San Francisco
Geospatial Data Presentation Form
map
Publication Information
Publication Place
San Francisco
Publisher
Engraved printed by Bosqui Eng. Print Co.
Other Citation Details
1 map on 2 sheets : col. ; 62 x 140 cm.
Source Scale Denominator
480
Type of Source Media
paper
Source Temporal Extent
Time Period Information
Single Date/Time
Calendar Date
1885
Source Currentness Reference
publication date
Contribution
Source map for raster image
Spatial Data Organization Information
Direct Spatial Reference Method
Raster
Raster Object Information
Raster Object Type
Pixel
Row Count
7465
Column Count
16792
Vertical Count
1
Spatial Reference Information
Horizontal Coordinate System Definition
Planar
Map Projection
Map Projection Name
Lambert Conformal Conic
Lambert Conformal Conic
Standard Parallel
37.066667
Standard Parallel
38.433333
Longitude of Central Meridian
-120.500000
Latitude of Projection Origin
36.500000
False Easting
6561666.666667
False Northing
1640416.666667
Planar Coordinate Information
Planar Coordinate Encoding Method
row and column
Coordinate Representation
Abscissa Resolution
0.075504
Ordinate Resolution
0.304924
Planar Distance Units
survey feet
Geodetic Model
Horizontal Datum Name
North American Datum of 1983
Ellipsoid Name
Geodetic Reference System 80
Semi-major Axis
6378137.000000
Denominator of Flattening Ratio
298.257222
Entity and Attribute Information
Entity and Attribute Overview
The indexes reference a color palette of RGB values from 0 through 255, representing the color value from the original paper sheet map. The colors on that sheet can represent relief, drainage, vegetation, populated places, cultural features, coastal hydrography, transportation features (roads, railroads, tracks and trails), spot elevations and boundaries. The colors are sometimes explained in a legend that is incorporated into the map inset or collar.
Entity and Attribute Detail Citation
Not applicable.
Distribution Information
Format Name
TIFF
Distributor
Harvard University Library
Online Access
http://hgl.harvard.edu/
Name
Metadata Reference Information
Metadata Date
20080111
Metadata Contact
Contact Information
Contact Organization Primary
Contact Organization
Harvard Geospatial Library
Contact Position
Geospatial Resources Cataloger
Contact Address
Address
Harvard University Library
Address
Office For Information Systems
Address
90 Mount Auburn Street
City
Cambridge
State or Province
MA
Postal Code
02138
Country
USA
Contact Voice Telephone
617-495-2417
Contact Facsimile Telephone
617-496-0440
Contact Electronic Mail Address
hgl_ref@hulmail.harvard.edu
Hours of Service
Monday - Friday, 9:00 am - 4:00 pm EST-USA
Metadata Standard Name
FGDC Content Standards for Digital Geospatial Metadata
Metadata Standard Version
FGDC-STD-001-1998
Metadata Extensions
Online Linkage
http://www.esri.com/metadata/esriprof80.html
Profile Name
ESRI Metadata Profile
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