Cape of Good Hope and Cape Town Region, South Africa, Nautical Chart, 1822 (Raster Image)

This layer is a georeferenced raster image of the historic, paper map entitled: Survey of the Cape of Good Hope, by Lieut. A.T.E. Vidal of H.M.S. Leven, assisted by Captn. Chas. Lechmere, R.N. Lieut T. Boteler, and Mr. H.A. Gibbons, Admlty. Midn. under the direction of Captn. W.F.W. Owen, 1822. J. & C. Walker sculpt. It was published according to Act of Parliament at the Hydrographical Office of the Admiralty, 4th March 1828. Scale [ca. 1:153,512]. Covers the Cape Peninsula region, including False Bay and Cape Town, South Africa. The image inside the map neatline is georeferenced to the surface of the earth and fit to the 'WGS 1984 UTM 34S' 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 coastal features such as beacons, rocks, channels, points, coves, islands, bottom soil types, anchorage points, and more. Includes also selected land features such as roads, drainage, land cover, selected buildings, towns, and more. Relief shown by contours; depths by soundings. Includes notes, table of heights, and two views. 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.

Provincetown Harbor, Cape Cod, Massachusetts, 1799 (Raster Image)

This layer is a georeferenced raster image of the historic paper map entitled: This chart of Cape Cod and Harbour is dedicated to the Boston Marine Society by their friend & brother, John Foster Williams. It was published in 1799. Scale [ca. 1:6,450]. Covers Cape Cod from Truro to Provincetown including Provincetown Harbor, Massachusetts. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Massachusetts State Plane Coordinate System, Mainland Zone (in Feet) (Fipszone 2001). 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, or other information associated with the principal map. This map is a nautical chart showing coastal features such as anchor points, currents, points, inlets, coves, and more. Shows also land features: windmills, lighthouse, and buildings pictorially. Harbor depths are shown by soundings. Includes text "Directions for sailing by Cape-Cod Light-House and into Cape-Harbour." This layer is part of a selection of digitally scanned and georeferenced historic maps of Massachusetts from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of regions, originators, ground condition dates (1755-1922), scales, and purposes. The digitized selection includes maps of: the state, Massachusetts counties, town surveys, coastal features, real property, parks, cemeteries, railroads, roads, public works projects, etc.

Provincetown Harbor, Cape Cod, Massachusetts, 1841 (Raster Image)

This layer is a georeferenced raster image of the historic paper map entitled: Chart of Cape Cod Harbor and the adjacent coast of Provincetown and Truro, reduced from the original of James D. Graham and published under the patronage of the Boston Marine Insurance Companies by I.W.P. Lewis ; surveyed and projected by J.D. Graham ; W.J. Stone, sc.. It was published in 1841. Scale 1:21,120. Covers Cape Cod from Truro to Provincetown including Provincetown Harbor, Massachusetts. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Massachusetts State Plane Coordinate System, Mainland Zone (in Feet) (Fipszone 2001). 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, or other information associated with the principal map. This map is a nautical chart showing coastal features such as harbors, light houses, ocean bottom types, points, inlets, coves, wharves, high and low tide marks, and more. Depths are shown by soundings and contours. Shows also land features: buildings with names of landowners, roads, drainage, and more. Relief is shown by hachures. This layer is part of a selection of digitally scanned and georeferenced historic maps of Massachusetts from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of regions, originators, ground condition dates (1755-1922), scales, and purposes. The digitized selection includes maps of: the state, Massachusetts counties, town surveys, coastal features, real property, parks, cemeteries, railroads, roads, public works projects, etc.

Cape Verde, ca. 1730 (Raster Image)

This layer is a georeferenced raster image of the historic paper map entitled: Isles du Cap Verd Hispanis Islas de Cabo Verde Belgis de Soute Eylanden. It was published by chez Jean Cóvens et Corneille Mortier, geographes, ca. 1730. Scale [ca. 1:910,000]. Covers Cape Verde. Map in Dutch and SpanishThe image inside the map neatline is georeferenced to the surface of the earth and fit to the World Mercator 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 drainage, villages and other human settlements, shoreline features, ports and anchorage points, and more. Relief shown pictorially. 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.

Cape Verde, 1824 (Raster Image)

This layer is a georeferenced raster image of the historic paper map entitled: A new chart of the Cape Verde islands : drawn from the latest authorities by J.W. Norie, hydrographer. It was published by J.W. Norie and Co. in 1824. Scale [ca. 1:810,000]. The image inside the map neatline is georeferenced to the surface of the earth and fit to the World Mercator 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 drainage, villages and other human settlements, shoreline features, ports and anchorage points, and more. Relief shown by hachures; depths shown by soundings. Includes also profile of the south coast of the Island of St. Iago and a profile of the Island of Mayo and insets: Port Praya in the Island of St. Iago; Porto Grande in the Island of St. Vincent; English Road in the Island of Bonavista.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.

Benthic foraminifera analysis of two sediments cores from the northern Cape Basin in the eastern South Atlantic Ocean

Two late Quaternary sediment cores from the northern Cape Basin in the eastern South Atlantic Ocean were analyzed for their benthic foraminiferal content and benthic stable carbon isotope composition. The locations of the cores were selected such that both of them presently are bathed by North Atlantic Deep Water (NADW) and past changes in deep water circulation should be recorded simultaneously at both locations. However, the areas are different in terms of primary production. One core was recovered from the nutrient-depleted Walvis Ridge area, whereas the other one is from the continental slope just below the coastal upwelling mixing area where present day organic matter fluxes are shown to be moderately high. Recent data served as the basis for the interpretation of the late Quaternary faunal fluctuations and the paleoceanographic reconstruction. During the last 450,000 years, NADW flux into the eastern South Atlantic Ocean has been restricted to interglacial periods, with the strongest dominance of a NADW-driven deep water circulation during interglacial stages 1, 9 and 11. At the continental margin, high productivity faunas and very low epibenthic d13C values indicate enhanced fluxes of organic matter during glacial periods. This can be attributed to a glacial increase and lateral extension of coastal upwelling. The long term glacial-interglacial paleoproductivity cycles are superimposed by high-frequency variations with a period of about 23,000 yr. Enhanced productivity in surface waters above the Walvis Ridge, far from the coast, is indicated during glacial stages 8, 10 and 12. During these periods, cold, nutrient-rich filaments from the mixing area were probably driven as far as to the southeastern flank of the Walvis Ridge.