View Metadata
Boston Bay, Massachusetts, Nautical Chart, 1776 (Image 2 of 2) (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
- Des Barres, Joseph F. W. (Joseph Frederick Wallet), 1722-1824.
- Originator
- Sproule, Geo. F. (George F.), 1741-1817.
- Originator
- Holland, Samuel, 1728-1801.
- Originator
- Blaskowitz, Charles.
- Originator
- Grant, James, surveyor and draughtsman.
- Originator
- Wheeler, Thomas, draughtsman and surveyor.
- Originator
- Flyn, engraver.
- Publication Date
- 2008
- Title
- Boston Bay, Massachusetts, Nautical Chart, 1776 (Image 2 of 2) (Raster Image)
- Geospatial Data Presentation Form
- map
- Publication Information
- Publication Place
- Cambridge, Mass.
- Publisher
- Harvard Map Collection, Harvard College Library
- Online Linkage
- https://hgl.harvard.edu/catalog/harvard-g1106-p5-1781-d4-94-2-2
- Abstract
- This layer is a georeferenced raster image of the untitled, historic nautical chart: [A chart of Boston Bay] (sheet originally published in 1776). The map is [sheet 19] from the Atlantic Neptune atlas Vol. 3 : Charts of the coast and harbors of New England, from surveys taken by Samuel Holland and published by J.F.W. Des Barres, 1781. Scale [ca. 1:50,000]. This layer is image 2 of 2 total images of the two sheet source map, representing the eastern portion of the map. Covers the Massachusetts coastline north of Boston to Salem, south of Boston to Scituate, and portions of Boston Harbor and Massachusetts Bay. The image is georeferenced to the surface of the earth and fit to the 'World Mercator' (WGS 84) projected coordinate system. All map collar information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, or other information associated with the principal map. This map shows coastal features such as harbors, inlets, rocks, channels, points, coves, shoals, islands, and more. Includes also selected land features such as cities and towns. Relief is shown by hachures; depths by soundings. This layer is part of a selection of digitally scanned and georeferenced historic maps from The Harvard Map Collection. The entire Atlantic Neptune atlas Vol. 3 : Charts of the coast and harbors of New England has been scanned and georeferenced as part of this selection.
- 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
- 1776
- Bounding Box
- West
- -71.047326
- East
- -70.636883
- North
- 42.571044
- South
- 42.172092
- Theme Keyword
- Maps
- Nautical charts
- Coasts
- Bodies of water
- Harbors
- Hydrography
- Human settlements
- Cities and towns
- Landforms
- Theme Keyword Thesaurus
- LCSH
- ISO Topic Category
- imageryBaseMapsEarthCover
- transportation
- oceans
- Place Keyword
- Atlantic Ocean
- Massachusetts
- Massachusetts Bay
- Boston Harbor
- Boston Bay
- Place Keyword Thesaurus
- Columbia Gazetteer
- 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 Geospatial Library
- Delivery Point
- Harvard University Library
- Delivery Point
- Office For Information Systems
- Delivery Point
- 90 Mount Auburn Street
- 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
- Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.4.1420
- Cross-Reference
- Originator
- Des Barres, Joseph F. W. (Joseph Frederick Wallet), 1722-1824.
- Originator
- Sproule, Geo. F. (George F.), 1741-1817.
- Originator
- Holland, Samuel, 1728-1801.
- Originator
- Blaskowitz, Charles.
- Originator
- Grant, James, surveyor and draughtsman.
- Originator
- Wheeler, Thomas, draughtsman and surveyor.
- Originator
- Flyn, engraver.
- Publication Date
- 1781
- Title
- Charts of the coast and harbors of New England : from surveys taken by Saml. Holland Esqr. Survr. Genr. of Lands for the Northern District of North America and Geo. Sproule, Chas. Blaskowitz, Jam.s Grant and Thos. Wheeler his assistants
- Geospatial Data Presentation Form
- atlas
- Series Information
- Series Name
- Atlantic Neptune
- Issue Identification
- Vol. 3
- Publication Information
- Publication Place
- [London]
- Publisher
- J.F.W. Des Barres
- Other Citation Details
- 1 atlas (52 sheets) ; 84 cm.
- Online Linkage
- http://nrs.harvard.edu/urn-3:FHCL:1271002
- Cross-Reference
- Originator
- Harvard Map Collection, Harvard College Library
- Originator
- Des Barres, Joseph F. W. (Joseph Frederick Wallet), 1722-1824.
- Originator
- Sproule, Geo. F. (George F.), 1741-1817.
- Originator
- Holland, Samuel, 1728-1801.
- Originator
- Blaskowitz, Charles.
- Originator
- Grant, James, surveyor and draughtsman.
- Originator
- Wheeler, Thomas, draughtsman and surveyor.
- Originator
- Flyn, engraver.
- Publication Date
- 2008
- Title
- Boston Bay, Massachusetts, Nautical Chart, 1776 (Image 1 of 2) (Raster Image)
- Geospatial Data Presentation Form
- map
- Publication Information
- Publication Place
- Cambridge, Mass.
- Publisher
- Harvard Map Collection, Harvard College Library
- Online Linkage
- http://hgl.harvard.edu/
- 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, however, errors in the raster image are small compared with sources of error in the original map graphic. The RMS error for this map is 180.39995 meters. 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
- Des Barres, Joseph F. W. (Joseph Frederick Wallet), 1722-1824.
- Originator
- Sproule, Geo. F. (George F.), 1741-1817.
- Originator
- Holland, Samuel, 1728-1801.
- Originator
- Blaskowitz, Charles.
- Originator
- Grant, James, surveyor and draughtsman.
- Originator
- Wheeler, Thomas, draughtsman and surveyor.
- Originator
- Flyn, engraver.
- Publication Date
- 1776
- Title
- [A chart of Boston Bay]
- Geospatial Data Presentation Form
- map
- Collection Title
- Charts of the coast and harbors of New England : from surveys taken by Saml. Holland Esqr. Survr. Genr. of Lands for the Northern District of North America and Geo. Sproule, Chas. Blaskowitz, Jam.s Grant and Thos. Wheeler his assistants
- Publication Information
- Publication Place
- [London]
- Publisher
- J.F.W. Des Barres
- Other Citation Details
- 1 map on 2 sheets. [Sheet 19] Sheet 2 of 2.
- Source Scale Denominator
- 50000
- Type of Source Media
- paper
- Source Temporal Extent
- Time Period Information
- Single Date/Time
- Calendar Date
- 1776
- 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
- 9988
- Column Count
- 7674
- Vertical Count
- 1
- Spatial Reference Information
- Horizontal Coordinate System Definition
- Planar
- Map Projection
- Map Projection Name
- Mercator
- Mercator
- Standard Parallel
- 0.000000
- Longitude of Central Meridian
- 0.000000
- False Easting
- 0.000000
- False Northing
- 0.000000
- Planar Coordinate Information
- Planar Coordinate Encoding Method
- row and column
- Coordinate Representation
- Abscissa Resolution
- 5.953915
- Ordinate Resolution
- 5.996526
- Planar Distance Units
- meters
- Geodetic Model
- Horizontal Datum Name
- D_WGS_1984
- Ellipsoid Name
- WGS_1984
- Semi-major Axis
- 6378137.000000
- Denominator of Flattening Ratio
- 298.257224
- 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 represent building footprints and features, property boundaries, transportation features (roads, railroads, tracks and trails), drainage, map annotations, and more. A citation and URL to a digital version of the source atlas including the index page is provided in the cross reference section. See: http://nrs.harvard.edu/urn-3:FHCL:1081746 The digital version of the atlas also includes a graphic and street index.
- Entity and Attribute Detail Citation
- Not applicable.
- Distribution Information
- Format Name
- TIFF
- Distributor
- Harvard Geospatial Library
- Online Access
- http://hgl.harvard.edu/
- Name
- Metadata Reference Information
- Metadata Date
- 20080916
- 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
