10,000+ results returned
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Title: Artisanal Fishing, 2007-2008
Contributors:- Raster data
- 2008
Summary: This raster dataset is a global model of artisanal fishing based on small scale fisheries data and population proximity to coastal areas. See the Lineage section for complete information regarding data sources and processes. This approach to estimating the impact of artisanal fishing cannot distinguish between methods that do and do not modify habitat. Some developing nations have a high rate of habitat-modifying artisanal fishing and our estimate of the impact of this activity in those locations will be underestimated. Unfortunately, the distribution of habitat-modifying fishing methods is currently unknown in a globally-comparable way. Artisanal fishing is notoriously difficult to estimate our approach uses coarse FAO estimates, models missing national data, and then models the small-scale distribution of national data. This dataset is part of the Global Map of Human Impacts to Marine Ecosystems, a collection of data and analyses related to anthropogenic drivers of change in marine ecosystems. The goal of this research is to estimate and visualize the global impact that humans are having on the oceans' ecosystems. National Center for Ecologial Analysis and Synthesis. (2008) Artisanal Fishing, 2007-2008. Science. Available at: http://purl.stanford.edu/cp238ks3172 This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: Invasive Species, 2007-2008
Contributors:- Raster data
- 2008
Summary: This raster dataset contains measurements of invasive species in the world's oceans. See the Lineage section for complete information regarding data sources and processes used to create this layer. This dataset is part of the Global Map of Human Impacts to Marine Ecosystems, a collection of data and analyses related to anthropogenic drivers of change in marine ecosystems. The goal of this research is to estimate and visualize the global impact that humans are having on the oceans' ecosystems. National Center for Ecologial Analysis and Synthesis. (2008) Invasive Species, 2007-2008. Science. Available at: http://purl.stanford.edu/jt342yd7485 Please see supplimental online materials for more information. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: Ocean Based Pollution, 2007-2008
Contributors:- Raster data
- 2008
Summary: This raster layer depicts global measurements of ocean-based pollution. Ocean-based pollution is assumed to derive from commercial and recreational ship activity. See the Lineage section for complete information regarding data sources and processes. This layer is part of the Global Map of Human Impacts to Marine Ecosystems, a collection of data and analyses related to anthropogenic drivers of change in marine ecosystems. The goal of this research is to estimate and visualize the global impact that humans are having on the oceans' ecosystems. National Center for Ecologial Analysis and Synthesis. (2008) Ocean Based Pollution, 2007-2008. Science. Available at: http://purl.stanford.edu/fd263xn6056 Please see supplimental online materials for more information. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: Commercial Shipping Activity, 2007-2008
Contributors:- Raster data
- 2008
Summary: This raster layer represents global commercial shipping activity including location and travel routes. Commercial shipping activity can lead to ship strikes of large animals, noise pollution, and a risk of ship groundings or sinkings. See the Lineage section for complete information about data sources and porcesses used to create this layer. This dataset is part of the Global Map of Human Impacts to Marine Ecosystems, a collection of data and analyses related to anthropogenic drivers of change in marine ecosystems. The goal of this research is to estimate and visualize the global impact that humans are having on the oceans' ecosystems. National Center for Ecologial Analysis and Synthesis. (2008) Commercial Shipping Activity, 2007-2008. Science. Available at: http://purl.stanford.edu/zv735jp7944 Please see supplimental online materials for more information. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: Sea Surface Temperature Anomaly, 2007-2008
Contributors:- Raster data
- 2008
Summary: This raster dataset is a model that measures the impact of sea surface temperature anomalies as a factor in global climate change. Potential for ecological change in response to changes in sea surface temperature can be measured as the frequency of temperature anomalies, where the temperature exceeds a threshold value like the long-term mean, or by a measure of the magnitude (°C) of the anomalies themselves. See the Lineage section for complete information about data sources and porcesses used to create this layer. This dataset is part of the Global Map of Human Impacts to Marine Ecosystems, a collection of data and analyses related to anthropogenic drivers of change in marine ecosystems. The goal of this research is to estimate and visualize the global impact that humans are having on the ocean's ecosystems. National Center for Ecological Analysis and Synthesis. (2008) Sea Surface Temperature Anomaly, 2007-2008. Science. Available at: http://purl.stanford.edu/wd768hc4450 Please see supplimental online materials for more information. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: Inorganic Pollution, 2007-2008
Contributors:- Raster data
- 2008
Summary: This raster dataset depicts the measurements of inorganic pollution in the world's oceans. See the Lineage section for complete information regarding data sources and processes. This dataset is part of the Global Map of Human Impacts to Marine Ecosystems, a collection of data and analyses related to anthropogenic drivers of change in marine ecosystems. The goal of this research is to estimate and visualize the global impact that humans are having on the oceans' ecosystems. National Center for Ecological Analysis and Synthesis. (2008) Inorganic Pollution, 2007-2008. Science. Available at: http://purl.stanford.edu/gc538rb4535 This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: Benthic Structures, 2007-2008
Contributors:- Raster data
- 2008
Summary: This raster dataset shows the locations of benthic structures (oil rigs) in the world's oceans. Structures included are gas and communication pipelines and oil extraction rigs. Benthic structures built in the ocean leave a footprint of destroyed habitat where they are built. See the Lineage section for complete information regarding data sources and processes. This dataset is part of the Global Map of Human Impacts to Marine Ecosystems, a collection of data and analyses related to anthropogenic drivers of change in marine ecosystems. The goal of this research is to estimate and visualize the global impact that humans are having on the oceans' ecosystems. National Center for Ecologial Analysis and Synthesis. (2008) Benthic Structures (Oil Rigs) 2007-2008. Science. Available at: http://purl.stanford.edu/fq473pc0404 Please see supplimental online materials for more information. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: Ocean Acidification, 2007-2008
Contributors:- Raster data
- 2008
Summary: This raster dataset depicts the measurements of ocean acidification at global coverage. Changes in CO2 concentration alter the aragonite saturation state (ASS) of the ocean, among other chemical properties of seawater, and as ASS levels drop the ability of calcifying species such as corals, diatoms, and shelled invertebrates to create calcium carbonate structures declines. The global distribution of ASS values has been modeled at 1-degree resolution for pre-industrial (circa 1870) and modern times (2000-2009). We use the difference between these values as an estimate of the human-derived driver of changes in ocean acidification. This dataset is part of the Global Map of Human Impacts to Marine Ecosystems, a collection of data and analyses related to anthropogenic drivers of change in marine ecosystems. The goal of this research is to estimate and visualize the global impact that humans are having on the oceans' ecosystems. National Center for Ecologial Analysis and Synthesis. (2008) Ocean Acidification, 2007-2008. Science. Available at: http://purl.stanford.edu/tg926kp6619 Please see supplimental online materials for more information. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: Ultra Violet Radiation Change,1996-2004
Contributors:- Raster data
- 2008
Summary: This raster dataset shows the intensity of ultraviolet (UV) radiation reaching the surface of Earth from August 1996 to July 2004 as part of the GSFC TOMS EP/TOMS satellite program at NASA. See the Lineage section for complete information about data sources and porcesses used to create this layer. This dataset is part of the Global Map of Human Impacts to Marine Ecosystems, a collection of data and analyses related to anthropogenic drivers of change in marine ecosystems. The goal of this research is to estimate and visualize the global impact that humans are having on the oceans' ecosystems. Our analysis, published in Science February 15, 2008, shows that over 40% of the world's oceans are heavily affected by human activities and few if any areas remain untouched. National Center for Ecologial Analysis and Synthesis (2008) Ultra Violet Radiation Change: Human Impacts on Global Marine Ecosystems, 1996-2004. Science. Available at: http://purl.stanford.edu/qx047fn5377 Please see supplimental online materials for more information. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: Organic Pollution, 2007-2008
Contributors:- Raster data
- 2008
Summary: This raster dataset depicts the measurements of organic pollution in the world's oceans. See the Lineage section for complete information regarding data sources and processes. This dataset is part of the Global Map of Human Impacts to Marine Ecosystems, a collection of data and analyses related to anthropogenic drivers of change in marine ecosystems. The goal of this research is to estimate and visualize the global impact that humans are having on the oceans' ecosystems. National Center for Ecologial Analysis and Synthesis. (2008) Organic Pollution, 2007-2008. Science. Available at: http://purl.stanford.edu/zh141vw7211 Please see supplimental online materials for more information. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: Population Pressure, 2007-2008
Contributors:- Raster data
- 2008
Summary: This raster layer represents changes in resource use due to population growth and industrial development that have caused degradation of the coastal zone and marine resources. This layer is part of the Global Map of Human Impacts to Marine Ecosystems, a collection of data and analyses related to anthropogenic drivers of change in marine ecosystems. The goal of this research is to estimate and visualize the global impact that humans are having on the oceans' ecosystems. National Center for Ecologial Analysis and Synthesis. (2008) Population Pressure, 2007-2008. Science. Available at: http://purl.stanford.edu/wk155tj1117 Please see supplimental online materials for more information. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: A Global Map of Human Impacts to Marine Ecosystems
Contributors:- Not specified
- 2008
Summary: The goal of the research presented here is to estimate and visualize, for the first time, the global impact humans are having on the ocean's ecosystems. This dataset contains 12 raster grids (with global coverage) representing types of human activities in categories like fishing, climate change, and pollution, and commercial activity, that directly or indirectly have an impact on the ecological communities in the ocean's ecosystems. This analysis, published in Science, February 15, 2008 (no subscription required), shows that over 40% of the world's oceans are heavily affected by human activities and few if any areas remain untouched. System requirements: Geographic Information Systems (GIS) software that reads ESRI shapefile format.
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Title: Nutrient Input, 2007-2008
Contributors:- Raster data
- 2008
Summary: This raster dataset contains measurements of nutrient (fertilizer) pollution in the world's oceans. See the Lineage section for complete information about data sources and porcesses used to create this layer. This dataset is part of the Global Map of Human Impacts to Marine Ecosystems, a collection of data and analyses related to anthropogenic drivers of change in marine ecosystems. The goal of this research is to estimate and visualize the global impact that humans are having on the oceans' ecosystems. National Center for Ecologial Analysis and Synthesis (2008) Nutrient Input, 2007-2008. Science Available at: http://purl.stanford.edu/zw188nd3165 Please see supplimental online materials for more information. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: United States of America (Raster Image)
Contributors:- Raster data
- 2015
Summary: This layer is a georeferenced image of a map of the United States. The original map was published in 'A Complete Genealogical, Historical, Chronological, and Geographical Atlas; Being a General Guide to History, Both Ancient and Modern...' published by M. Carey in 1820. 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. A scanned version of this map was georeferenced by the Center for Spatial and Textual Analysis (CESTA) at Stanford University. This map is part of a selection of georeferenced historic maps from the David Rumsey Map Collection at Stanford University.This layer provides an historical perspective of the cultural and physical landscape during this time period. The wide range of information provided on these maps make them useful in the study of historic geography. As this map has been georeferenced, it also can be used as a background layer in conjunction with other GIS data.
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Title: The United States of America, W. Barker sculp. Philadelphia (Raster Image)
Contributors:- Raster data
- 2015
Summary: This layer is a georeferenced raster image of a map of the United States originally created by Matthew Carey and engraved by William Barker. The original paper map was published in Carey's American Pocket Atlas (Lang and Ustick, 1796, 1st ed.), which includes 19 maps showing roads, rivers, and boundaries for the different states and territories of the U.S. 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. A scanned version of this map was georeferenced by the Center for Spatial and Textual Analysis (CESTA) at Stanford University. This map is part of a selection of georeferenced historic maps from the David Rumsey Map Collection at Stanford University.This map provides an historical perspective of the cultural and physical landscape during this time period. The wide range of information provided on these maps make them useful in the study of historic geography. As this map has been georeferenced, it also can be used as a background layer in conjunction with other GIS data.
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Title: State of Indiana, rail map
Contributors:- Thematic maps
- 1976
Summary: Imprint: [Bloomington] : [publisher not identified], 1976. Dimensions: 127 x 97 cm; Scale: 1:375,000 Coordinates: W0880500 W0844700 N0414500 N0374600
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Title: Oued Djaret region, Algeria, 1953, Army Map Service (AMS) NG 31-6 (Raster Image)
Contributors:- Raster data
- 2009
- United States. Army Map Service
- Harvard University. Center for Geographic Analysis.
- East View Cartographic, Inc.
Summary: This layer is a georeferenced raster image of the Army Map Service (AMS) Series P502, North Africa, 1:250,000 AMS Series sheet map entitled: Oued Djaret. Compilation date: 1953. Printed in: 1964. Covers portions of Oued Djaret region, Algeria. Map quadrangle number: NG 31-6. Edition statement: Ed. 1 - AMS. Compiled in 1953 from Carte du Sahara, 1:200,000, Institut Geographique National, Sheets NG-31 XIV, NG-31 XV, 1931. The image inside the map neatline is georeferenced to the surface of the earth and fit to World Geodetic System (1984) coordinates. All map collar information is also available as part of the raster image. Series source sheets are of varying compilation dates (1951-1964) and editions, published by the Army Map Service. AMS Series P502 maps are in English. Each source map in the series is printed in color at a scale of 1:250,000. The source map was selected and downloaded from the University of Texas Libraries Web site by the Harvard University Center for Geographic Analysis (CGA) and georeferenced for the CGA's AfricaMap project by East View Cartographic. Individual AMS sheets covering a small portion of Africa (146 sheets in total) were selected from AMS series of: North Africa (P502), West Africa (G504), and South Africa (Z501). AMS Series maps are typical topographic maps portraying both natural and manmade features. They show and name works of nature, such as mountains, valleys, lakes, rivers, vegetation, etc. They also identify the principal works of humans, such as roads, railroads, boundaries, transmission lines, major buildings, etc. Relief is shown with standard contour intervals of 50 meters, with some sheets having supplemental meter contours, form lines, hachures, shading, and/or spot heights. Depths shown by bathymetric isolines. Please pay close attention to map collar information on projections, spheroid, planimetric revision methods and dates, and keys to grid numbering and other numbers which appear inside the neatline.
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Title: Abong Mbang region, Cameroon, 1963, Army Map Service (AMS) NA 33-1 (Raster Image)
Contributors:- Raster data
- 2009
- United States. Army Map Service
- Harvard University. Center for Geographic Analysis.
- East View Cartographic, Inc.
Summary: This layer is a georeferenced raster image of the Army Map Service (AMS) Series G504, West Africa, 1:250,000 AMS Series sheet map entitled: Abong Mbang. Compilation date: 1963. Printed in: 1965. Covers portions of Abong Mbang region, Cameroon. Map quadrangle number: NA 33-1. Edition statement: Ed. 1 - AMS. Compiled in 1963 from Carte de l'Afrique ... 1:200,000, Service Geographique a Brazzaville, Sheets ... 33-XX, published 1958. The image inside the map neatline is georeferenced to the surface of the earth and fit to World Geodetic System (1984) coordinates. All map collar information is also available as part of the raster image. Series source sheets are of varying compilation dates (1952-1963) and editions, published by the Army Map Service. AMS Series G504 maps are in English. Each source map in the series is printed in color at a scale of 1:250,000. The source map was selected and downloaded from the University of Texas Libraries Web site by the Harvard University Center for Geographic Analysis (CGA) and georeferenced for the CGA's AfricaMap project by East View Cartographic. Individual AMS sheets covering a small portion of Africa (146 sheets in total) were selected from AMS series of: North Africa (P502), West Africa (G504), and South Africa (Z501). AMS Series maps are typical topographic maps portraying both natural and manmade features. They show and name works of nature, such as mountains, valleys, lakes, rivers, vegetation, etc. They also identify the principal works of humans, such as roads, railroads, boundaries, transmission lines, major buildings, etc. Relief is shown with standard contour intervals of 40 meters, with some sheets having supplemental meter contours, form lines, hachures, shading, and/or spot heights. Depths shown by bathymetric isolines. Please pay close attention to map collar information on projections, spheroid, planimetric revision methods and dates, and keys to grid numbering and other numbers which appear inside the neatline.
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Title: Tebessa region, Algeria, and Tunisia, 1958, Army Map Service (AMS) NI 32-2 (Raster Image)
Contributors:- Raster data
- 2009
- United States. Army Map Service
- Harvard University. Center for Geographic Analysis.
- East View Cartographic, Inc.
Summary: This layer is a georeferenced raster image of the Army Map Service (AMS) Series P502, North Africa, 1:250,000 AMS Series sheet map entitled: Tebessa. Compilation date: 1958. Printed in: 1962. Covers portions of Tebessa region, Algeria, and Tunisia. Map quadrangle number: NI 32-2. Edition statement: Ed. 1 - AMS. Compiled in 1958 from: Carte d'Algerie, 1:50,000, Institut Geographique National, 1944-50; Carte de Tunisie, 1:50,000, Institut Geographique National, 1923-54; Algerie, 1:200,000, Institut Geographique National, Sheet 39, 1932. The image inside the map neatline is georeferenced to the surface of the earth and fit to World Geodetic System (1984) coordinates. All map collar information is also available as part of the raster image. Series source sheets are of varying compilation dates (1951-1964) and editions, published by the Army Map Service. AMS Series P502 maps are in English. Each source map in the series is printed in color at a scale of 1:250,000. The source map was selected and downloaded from the University of Texas Libraries Web site by the Harvard University Center for Geographic Analysis (CGA) and georeferenced for the CGA's AfricaMap project by East View Cartographic. Individual AMS sheets covering a small portion of Africa (146 sheets in total) were selected from AMS series of: North Africa (P502), West Africa (G504), and South Africa (Z501). AMS Series maps are typical topographic maps portraying both natural and manmade features. They show and name works of nature, such as mountains, valleys, lakes, rivers, vegetation, etc. They also identify the principal works of humans, such as roads, railroads, boundaries, transmission lines, major buildings, etc. Relief is shown with standard contour intervals of 50 meters, with some sheets having supplemental meter contours, form lines, hachures, shading, and/or spot heights. Depths shown by bathymetric isolines. Please pay close attention to map collar information on projections, spheroid, planimetric revision methods and dates, and keys to grid numbering and other numbers which appear inside the neatline.