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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
