NYU Spatial Data Repository

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6861. World Map Showing Routes of Exploration and Discovery, 1853 (Raster Image)

1853. This layer is a georeferenced raster image of the historic paper map entitled: Planisphere : elementaire et illustre indiquant la description geogr... Harvard Map Collection, Harvard College Library.

6862. World Map Showing the Voyages of the Vettor Pisani, 1882-1885 (Raster Image)

1882. This layer is a georeferenced raster image of the historic paper map entitled: Viaggio della R[a] Corvetta 'Vettor Pisani', negli anni 1882-1883-18... Harvard Map Collection, Harvard College Library.

6863. World's Columbian Exposition, Chicago, Illinois, 1893 (Raster Image)

1893. This layer is a georeferenced raster image of the historic paper map entitled: The Union News Company's indexed map of the World's Columbian exposi... Harvard Map Collection, Harvard College Library.

6864. Yams, Average Yield, 2000

2000. University of Minnesota. Institute on the Environment. This raster dataset represents the average yield for yam crops in tons per hectare. Croplands cover ~15 million km2 of the planet and provide the b... University of Minnesota. Institute on the Environment.

6865. Yams, Crop Yield Data Quality, 2000

2000. University of Minnesota. Institute on the Environment. This raster dataset represents the agricultural census data quality for yam crop yields. Data quality categories include (0= missing, 0.25= county ... University of Minnesota. Institute on the Environment.

6866. Yams, Harvested Area Data Quality, 2000

2000. University of Minnesota. Institute on the Environment. This raster dataset represents the agricultural census data quality for harvested areas of yam crops. Data quality categories include (0= missing, ... University of Minnesota. Institute on the Environment.

6867. Yams, Harvested Area (Fractional), 2000

2000. University of Minnesota. Institute on the Environment. This raster dataset depicts the average fractional proportion of a gridcell for yam crops that were harvested circa 2000. Croplands cover ~15 milli... University of Minnesota. Institute on the Environment.

6868. Yams, Harvested Area (Hectares), 2000

2000. University of Minnesota. Institute on the Environment. This raster dataset depicts the average number of hectares per land-area of a gridcell for yam crops. Data quality categories include (0= missing, ... University of Minnesota. Institute on the Environment.

6869. Yams, Total Crop Production, 2000

2000. University of Minnesota. Institute on the Environment. This raster dataset represents total yam crop production in metric tons. Harvested area in hectares was multiplied by yield per hectare to create t... University of Minnesota. Institute on the Environment.

6870. Yarmouth, Massachusetts 15 Minute Digital Raster Graphic

2004. This layer is a digital raster graphic of the historic 15-minute USGS topographic map of the Yarmouth, Massachusetts quadrangle. The survey date (g...