845 results returned
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Title: Chart of the currents off the Cape of Good Hope to accompany Captn. Toynbee's paper "On the specific gravity temperature & currents of the sea," the result of a portion of five consecutive yearly voyages from England to India
Contributors:- Image data
- 1865
Summary: Includes explanatory note: "The Blue contour lines represent the limits of the cold (or ice bearing current) from 40° to 50° of temperature, _the Red contour lines, those of the warm current (or that derived from tropical regions) from 60° & upwards. The figures thus (59·5) denote the temperature of the surface (as observed) in precisely the same manner, as the soundings represent the depth of water on any ordinary chart. The direction of the currents is indicated by the flight of the Arrow_ near the barb of which is marked its velocity &c. Each date is underlined with the same colour as the track to which it belongs. The Chart represents the temperatures & currents during the months of August & September, about the parallel of 40°_ but near & round the Cape, during the month of February." Captain Toynbee's tracks of 1860-1, 1861-2, 1862-3, 1863-4, and summer 1864 are shown. Depth (Agulhas Bank) shown by shading. From: The Journal of the Royal Geographical Society of London. Vol. 35, (1865), pp. 147-53; held in Firestone Library. Call number: G7 .J687 v.35 1865
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Title: Map showing the localities of the principal mineral and vegetable products of India and the course of the trunk railways
Contributors:- Mine maps
- 1858
Summary: Cartographic Details: Scale approximately 1:8,750,000 (E 70°--E 100°/N 35°--N 5°) Relief shown by hachures. In right upper margin: Report--Colonization and settlement (India). In right lower margin: Number 326. Ordered by the House of Commons to be printed 10. June 1858. On cover: Ordered by the House of Commons, to be printed, 6 May 1858. At head of cover title: Colonization, &c. (India). Errata included. 37 x 40 centimeters
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Title: A general map of the empire of Germany, Holland, the Netherlands, Switzerland, the Grisons, Italy, Sicily, Corsica, and Sardinia
Contributors:- Not specified
- 1800
Summary: Cartographic Details: Scale [1:530,000] All maps are double except number 4, 13, and 16. Unnumbered frontispiece is an index map which is duplicated in number 13 and 16. Number 23 is an engraved title page. Index map signed: S.J. Neele, sculpt. 25 [i.e. 26] leaves of plates : all maps ; 66 x 50 cm.
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Title: Roundstone, Birterbuy, Kilkieran, Greatman and Cashla bays
Contributors:- Image data
- 1852
Summary: Relief shown by hachures and spot heights. Depths shown by soundings and isolines. At head of title: Ireland, west coast. "2096." Includes 3 coastal profiles.
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Title: The Island of Sombrero
Contributors:- Image data
- 1864
Summary: Relief shown pictorially. Depths shown by soundings. "Centre of the Island ... by Captn. Barnett R.N." "Published according to Act of Parliament by Capt. Hurd R.N., Hydrographer to the Admiralty, Octr. 7th. 1815. Corrected Septr. 64." At head of title: West Indies. "484." Includes profile: Appearance of the island, bearing N.1/2 E. distant 5 miles by Capt. Hodge.
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Title: Chinchew harbour
Contributors:- Image data
- 1849
Summary: Relief shown by hachures. Depths shown by soundings and isolines. "1769."
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Title: Maharashtra : reduced from a map of 6 inches to a degree
Contributors:- Not specified
- 1826
- Adams, Henry, Captain
- Duff, James Grant, 1789-1858
- Hall, Sidney
- Longman, Rees, Orme, Brown, and Green
Summary: Cartographic Details: Scale approximately 1:1,675,000. Relief shown pictorially. From: Grant Duff's History of the Mahrattas. London : Longman, Rees, Orme, Browne & Green, Paternoster Row, 1826.1 map (volume 2, page 1). 54 x 51 centimeters
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Title: A survey of the harbour of Jacmel in the Island of St. Domingo
Contributors:- Image data
- 1821
Summary: Depths shown by soundings. "473." In lower left-hand corner: Hydrographical Office.
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Title: A survey of Great Courland Bay in the Island of Tobago
Contributors:- Image data
- 1820
Summary: Shows the coastline of Great Courland Bay, Tobago. Relief shown pictorially; depths shown by soundings. "505." In lower right-hand corner: Hydrographical Office.
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Title: A map of the river Gambia from it's [sic] mouth to Eropina
Contributors:- Image data
- 1732
Summary: Depths shown by soundings. "Plate 149, No. 87. Vol. 2, p. 356."
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Title: A map of the river Gambia from Eropina to Barrakunda
Contributors:- Image data
- 1732
Summary: Relief shown pictorially; depths shown by soundings. Includes drawings of insects. "Plate 150, No. 87. Vol. 2, p. 357."
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Title: Supplementary data for "Trajectories of long duration balloons launched from McMurdo Station in Antarctica"
Contributors:- Table data
- 2021
Summary: These files contain trajectory information for long-duration balloons launched from McMurdo Station in Antarctica. These balloons carry payloads addressing a wide range of scientific questions. We have analyzed these trajectories in order to estimate the expected range of trajectories to aid in mission planning for future balloon experiments from McMurdo. The data.csv.zip folder consists of 40 trajectory files for long-duration balloon flights launched from McMurdo Station in Antarctica, each containing latitude, longitude, altitude and time since launch. The files in analysis.csv.zip contain data products derived from analysis of the raw data.
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Title: Solar Insolation, Minnesota] (2006-2012)
Contributors:- LiDAR
- 2015
- Brink, Christopher
- Gosack, Benjamin
- Kne, Len
- Luo, Yuanyuan
- Martin, Christopher
- McDonald, Molly
- Moore, Michael
- Munsch, Andrew
- Palka, Stephen
- Piernot, Devon
- Thiede, Dan
- Xie, Yiquan
- Walz, Andrew
Summary: The Minnesota Solar Suitability Analysis attempts to provide solar insolation analysis for the entire State of Minnesota. As far as we are aware, it is the only project of its scale in existence; similar studies have been limited to metro areas or focus on rooftop insolation. The project's existence is feasible because of statewide, freely available aerial lidar coverage. And the commitment of the team to work long hours on this unfunded project. The project finds itself at the intersection of renewable energy, big data analysis, geospatial technology, and open data availability. This data provides a measure of incedent solar radiation as it is intercepted by the earth surface, or features (such as vegetation and buildings) standing above the earth surface. The data is intended to be used to assess the suitability of a site for solar panel (photovoltaic cell) installations. The analysis used to produce this dataset looks at geographic location, surface slope, surface aspect, and the effects of shading based on local topography and adjacent structures. A digital surface model was generated from raw LiDAR data. Then, using this DSM, an individual locations on a grid surface were assessed for the amount of direct and indirect radiation that reaches the surface. This analysis was conducted at a 1m resolution for the entire state of Minnesota.
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Title: Digital Surface Model [Minnesota] (2006-2012)
Contributors:- LiDAR
- 2015
- Brink, Christopher
- Gosack, Benjamin
- Kne, Len
- Luo, Yuanyuan
- Martin, Christopher
- McDonald, Molly
- Moore, Michael
- Munsch, Andrew
- Palka, Stephen
- Piernot, Devon
- Thiede, Dan
- Xie, Yiquan
- Walz, Andrew
Summary: A 1m resolution digital surface model that was generated from raw lidar data. This dataset was an intermediate product of a process to model potential solar insolation for the state of Minnesota. The Digital Surface Model (DSM) was created to represent the terrain and all object present on that terrain. This included buildings, tree cover, roads, and other natural and human-altered landscapes. In effect, the DSM is a three dimensional representation of Minnesota. It was generated using a Streaming Delauney Triangulation process through rapidlasso's LAStools software package. In this process, triangles are iteratively generated using nearby lidar returns and values for each point are determined by extracting interpolated elevation from the surface of the triangle. The result is a 1 meter resolution raster covering the state. Lidar is a form of active remote sensing technology that uses light pulses, most commonly in the near-infrared wavelengths, to collected surface elevation data. A laser scanner, mounted in an aircraft and combined with high-accuracy GPS, collects light returns that are interpolated into a point cloud. Each point represents one return from a laser pulse. The laser pulse has the ability to penetrate vegetation, multiple laser returns can be gathered for each pulse including the returns from below the vegetation.The accuracy of lidar returns allow for a unique, multi-faceted analytical dataset. The first point returns can be used to interpolate a topology of Minnesota that models the objects (i.e. building, trees, etc) and geography resting upon the terrain. The lidar point files for the state of Minnesota used in the study were collected between 2006 and 2012 through an intergovernmental initiative with the primary object of providing improved elevation data for flood mapping. In some regions, existing lidar data was acquired and transformed to new state standards. Areas where data did not exist or could not be transformed, were collected by contracted vendors. The composite data forms a seamless coverage of the state with a resolutions of at least 1.5 meters. Refer to metadata.html for full details.
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Title: Jerusalem, 1876 (Raster Image)
Contributors:- Raster data
- 2011
- Harvard Map Collection, Harvard College Library
- Wilson, Charles William, Sir, 1836-1905.
- Great Britain. Ordnance Survey.
- James, H., 1803-1877.
- Cameron, John, Captain.
Summary: This layer is a georeferenced raster image of the historic paper map entitled: Ordnance survey of Jerusalem, by captain Charles W. Wilson R. F. under the direction of Colonel Sir Henry James, R.E., F.R.S., &c. director of the Ordnance Survey, 1864-5. It was published by Ordnance Survey Office in 1876. Rev. [of 1864-5 ed.]. Revised 1876. Scale 1:2,500. Covers primarily the Old City.The image inside the map neatline is georeferenced to the surface of the earth and fit to the Universal Transverse Mercator (UTM Zone 36S, meters, WGS 1984) projected coordinate system. 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 map shows features such as roads, drainage, built-up areas and selected buildings (churches, synagogues, convents, schools), fortification, gates, religious sites, cemeteries, watch houses, cisterns, tombs, pools, aqueducts, and more. Relief shown by hachures, contours and spot heights. Includes also a list of references.This layer is part of a selection of digitally scanned and georeferenced historic maps from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of originators, ground condition dates, scales, and map purposes.
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Title: Jerusalem, 1868 (Raster Image)
Contributors:- Raster data
- 2009
- Harvard Map Collection, Harvard College Library
- Wilson, C. W.
- Great Britain. Ordnance Survey.
- Wilson, C. E.
- Cameron, John, Captain.
- Law, David, 1831-1902.
- James, H., 1803-1877.
Summary: This layer is a georeferenced raster image of the historic paper map entitled: Ordnance Survey of Jerusalem, surveyed by C.W. Wilson, CE, in 1864-5 and engraved under the direction of Colonel J. Cameron; the hills by D. Law. It was published by Ordnance Survey Office in 1868. Scale 1:10,000. Covers Jerusalem. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Israel Transverse Mercator (ESRI: Israel_TM_Grid) coordinate system. 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 map shows features such as roads, drainage, built-up areas and selected buildings, fortification, and more. Relief is shown by hachures and spot heights. 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.
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Title: A Map of Lewis and Clark's Track, Across the Western Portion of North America From the Mississippi to the Pacific Ocean; By Order of the Executive of the United States, in 1804, 5 & 6. Copied by Samuel Lewis from the Original Drawing of Wm. Clark. Smal. Harrison fct (Raster Image)
Contributors:- Raster data
- 2015
- Rumsey, David, 1944-
- Allen, Paul
- Biddle, Nicholas
- Clark, William, 1770-1838
- Lewis, Meriwether, 1774-1809
- Harrison, Samuel, 1789-1818
Summary: This layer is a georeferenced image of a map of the track of Lewis and Clark in the western United States, created in 1804. The original map appears in 'History Of The Expedition Under The Command Of Captains Lewis And Clark, To The Sources Of The Missouri, Thence Across The Rocky Mountains And Down The River Columbia To The Pacific Ocean. Performed During The Years 1804-5-6. By order of the Government Of The United States. Prepared For The Press By Paul Allen, Esquire. In Two Volumes. Vol. I. Philadelphia: Published By Bradford And Inskeep, New York. J. Maxwell, Printer. 1814 ... Vol. II.'The historic map layers in the Google Earth Rumsey Map Collection have been selected by David Rumsey from his large collection of historical maps, as well as some from other collections with which he collaborates. All the maps contain rich information about the past and represent a sampling of time periods, scales, and cartographic art, resulting in visual history stories that only old maps can tell. Each map has been georeferenced by Rumsey, thus creating unique digital map images that allow the old maps to appear in their correct places on the modern globe. Some of the maps fit perfectly in their modern spaces, while othersgenerally earlier period mapsreveal interesting geographical misconceptions of their time. Cultural features on the maps can be compared to the modern satellite views using the slider bars to adjust transparency. The result is an exploration of time as well as space, a marriage of historic cartographic masterpieces with innovative contemporary software tools.
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Title: England & Wales, 1788 (Image 2 of 2) (Raster Image)
Contributors:- Raster data
- 2013
Summary: This layer is a georeferenced raster image of the historic paper map: [Map of England and Wales : showing roads and navigable waterways]. It was published by John Andrews at No. 211, facing Air Street, Piccadilly on May 2, 1788. Scale [ca. 1:700,000]. This layer is image 2 of 2 total images of the 2 sheet source map, representing the southern portion of the map.The image inside the map neatline is georeferenced to the surface of the earth and fit to the 'British National Grid' coordinate system. 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 map shows features such as drainage, cities and other human settlements, roads, canals, bridges, administrative boundaries, shoreline features, and more. Includes also distances between individual cities.This layer is part of a selection of digitally scanned and georeferenced historic maps from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of originators, ground condition dates, scales, and map purposes.
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Title: England & Wales, 1788 (Image 1 of 2) (Raster Image)
Contributors:- Raster data
- 2013
Summary: This layer is a georeferenced raster image of the historic paper map: Map of England and Wales:showing roads and navigable waterways. It was published by John Andrews at No. 211, facing Air Street, Piccadilly on May 2, 1788. Scale [ca. 1:700,000]. This layer is image 1 of 2 total images of the 2 sheet source map, representing the northern portion of the map.The image inside the map neatline is georeferenced to the surface of the earth and fit to the 'British National Grid' coordinate system. 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 map shows features such as drainage, cities and other human settlements, roads, canals, bridges, administrative boundaries, shoreline features, and more. Includes also distances between individual cities.This layer is part of a selection of digitally scanned and georeferenced historic maps from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of originators, ground condition dates, scales, and map purposes.