This map showcases 2006 satellite imagery of Pohnpei taken by Digital Globe’s QuickBird satellite. The data were purchased and processed by U.S. Department of Agriculture (USDA) - Natural Resources Conservation Service (NRCS). The image shown here is in natural color. Image portions that fall outside the barrier reef of Pohnpei are omitted from the map.
This map showcases 2006 satellite imagery of Pohnpei taken by Digital Globe’s QuickBird satellite. The data were purchased and processed by U.S. Department of Agriculture (USDA) - Natural Resources Conservation Service (NRCS). The image shown here is in color infrared. Image portions that fall outside the barrier reef of Pohnpei are omitted from the map.
This map showcases 2013 satellite imagery of Pohnpei taken by Digital Globe’s WorldView-2 satellite. The data were purchased and processed by U.S. Department of Agriculture (USDA) - Natural Resources Conservation Service (NRCS). The image shown here is in natural color. Image portions that fall outside the barrier reef of Pohnpei are omitted from the map.
This map showcases 2016 satellite imagery of Pohnpei taken by Digital Globe’s WorldView-3 satellite. The data were purchased and processed by U.S. Department of Agriculture (USDA) - Natural Resources Conservation Service (NRCS). The image shown here is in natural color. Image portions that fall outside the barrier reef of Pohnpei are omitted from the map.
This map shows the shoreline and the land area of Pohnpei and smaller islands in Pohnpei's lagoon and on the barrier reef. It actually contains two datasets: the shoreline itself and Pohnpei base layer. Both were derived by Island Research & Education Initiative (iREi) and the University of Guam (UOG) (2017) from Digital Line Graphs (DLGs) of U.S. Geological Survey 1:25,000-scale topographic maps (2001). The shoreline was slightly shifted and partly updated around Kolonia and its vicinity based on Worldview-3 satellite imagery from Digital Globe (2016).
This map represents the topography of Pohnpei. It shows elevation contour lines at 10-meter intervals. Depicted in greyscale, the contour lines were derived by Island Research & Education Initiative (iREi) and the University of Guam (UOG) (2017) from a 10-meter resolution Digital Elevation Model (DEM) created by U.S. Geological Survey based on topography compiled in 1975 and the shoreline dataset representing the zero contour line.
This map represents the topography of Pohnpei. It shows elevation contour lines at 10-meter intervals. The contour lines are depicted in a range of colors corresponding to elevations from the shoreline to 780 m above sea level. They were derived by Island Research & Education Initiative (iREi) and the University of Guam (UOG) from a 10-meter resolution Digital Elevation Model (DEM) created by U.S. Geological Survey based on topography compiled in 1975 and the shoreline dataset representing the zero contour line.
This map represents the topography of Pohnpei. It shows elevation contour lines at 50-meter intervals. Depicted in greyscale, the contour lines were derived by Island Research & Education Initiative (iREi) and the University of Guam (UOG) (2017) from a 10-meter resolution Digital Elevation Model (DEM) created by U.S. Geological Survey based on topography compiled in 1975 and the shoreline dataset representing the zero contour line.
This map represents the topography of Pohnpei. It shows elevation contour lines at 50-meter intervals. The contour lines are depicted in a range of colors corresponding to elevations from the shoreline to 780 m above sea level. They were derived by Island Research & Education Initiative (iREi) and the University of Guam (UOG) (2017) from a 10-meter resolution Digital Elevation Model (DEM) created by U.S. Geological Survey based on topography compiled in 1975 and the shoreline dataset representing the zero contour line.
This map shows the elevation of terrain on Pohnpei. The dataset was derived from a 10-meter resolution Digital Elevation Model (DEM) created by U.S. Geological Survey based on topography compiled in 1975. The DEM was classified into elevation intervals and colored based on elevation in meters above sea level and the shoreline dataset representing the zero contour line.
This map shows the elevation of terrain on Pohnpei. The dataset was derived from a 10-meter resolution Digital Elevation Model (DEM) created by U.S. Geological Survey based on topography compiled in 1975. The DEM is depicted as a range of colors based on elevation in meters above sea level and the shoreline dataset representing the zero contour line.
This map shows the elevation of terrain on Pohnpei. The dataset was derived from a 10-meter resolution Digital Elevation Model (DEM) created by U.S. Geological Survey based on topography compiled in 1975. The DEM is depicted as shades of gray based on elevation in meters above sea level and the shoreline dataset representing the zero contour line.
This map shows the relief of terrain on Pohnpei. The dataset was derived from a 10-meter resolution Digital Elevation Model (DEM) created by U.S. Geological Survey based on topography compiled in 1975. The dataset was derived using the so-called hillshade function that creates an illusion of viewing terrain in 3D.
This map shows the elevation and relief of terrain on Pohnpei. It consists of two separate datasets, both of which were derived from a 10-meter resolution Digital Elevation Model (DEM) created by U.S. Geological Survey based on topography compiled in 1975. The two datasets are a DEM classified into elevation intervals and colored and a hillshade layer that creates an illusion of viewing terrain in 3D. Combined, they produce hypsometric-tinted shaded relief seen on the map and give illusion of viewing terrain in 3D while also providing elevation information.
This map shows the slope aspect of the terrain on Pohnpei. Slope aspect is the compass direction in which a particular slope faces. The dataset was derived from a 10-meter resolution Digital Elevation Model (DEM) created U.S. Geological Survey based on topography compiled in 1975.
This map shows the steepness of slope on Pohnpei. The steepness here is expressed in degrees and illustrated by means of a color gradient. The dataset was derived from a 10-meter resolution Digital Elevation Model (DEM) created by U.S. Geological Survey based on topography compiled in 1975.
This map shows the steepness of slope on Pohnpei. The steepness here is expressed in terms of percent rise and illustrated by means of a greyscale gradient. The dataset was derived from a 10-meter resolution Digital Elevation Model (DEM) created by U.S. Geological Survey based on topography compiled in 1975.
This map shows the location of benchmarks established on Pohnpei and the location of the continuously operating reference station (CORS). These data come from National Oceanic and Atmospheric Administration (NOAA) - National Geodetic Survey (NGS) (2011 and 2012).
This is a topographic map of Pohnpei. It is made from a raster document actually comprised of four separate topographic maps, 1:25,000 scale, first published by the U.S. Geological Survey (2001) as paper documents. The maps were later scanned and georeferenced to create what is commonly referred to as Digital Raster Graphics (DRGs). In the map shown here, portions of the DRG that fall outside the barrier reef of Pohnpei are omitted.
This map shows the basic soil types of Pohnpei. The original dataset was created by the U.S. Department of Agriculture (USDA) - Natural Resources Conservation Service (NRCS) (1982) as part of The soil survey of the Island of Ponape, Federated States of Micronesia at 1:10,000 scale. Soil map unit delineations were confirmed as accurate during a subsequent evaluation (1999). In addition to soil names and classification, the dataset contains information on terrain, erosion hazard, flooding hazard, and soil suitability for specific crops.
This map represents levels of erosion hazard in different areas of Pohnpei. The data were created by the U.S. Department of Agriculture (USDA) - Natural Resources Conservation Service (NRCS) and set are included in the same dataset as the one used for the Basic soil types map. Erosion hazard in different areas is estimated based on the local soil type, terrain slope, and other parameters.
This map represents levels of erosion hazard in different areas of Pohnpei. The data were created by the U.S. Department of Agriculture (USDA) - Natural Resources Conservation Service (NRCS) and set are included in the same dataset as the one used for the basic soil types map. Flooding hazard in different areas is estimated based on the local soil type, drainage, and other parameters.
This map shows the general land use zones of Pohnpei. The original data layer was created by the Pohnpei State Government. It was slightly modified by Island Research & Education Initiative (iREi) (2017) to better match the most recent shoreline. This layer is not authoritative and may require substantial verification and revision by Pohnpei State Government.
This map shows the general geology of Pohnpei. The data layer was created by Island Research & Education Initiative (iREi) (2017) by scanning, georeferencing, and digitizing a paper map prepared by the U.S. Geological Survey (1944) for the Chief of Engineers, U.S. Army as part of the Strategic Engineering Study No. 109 titled Ponape including Pakin and Ant Islands (Carolines) Terrain Intelligence. The map was found in the library collection at the national campus of the College of Micronesia (COM). It should be noted that this map is very general and erroneously identifies areas in Sokehs and Nett as being composed of raised reef rock.
This map shows the detailed geology of Pohnpei. The data layer was created by Island Research & Education Initiative (iREi) (2017) by scanning, georeferencing, and digitizing a paper map found in Spengler, S. R., Spencer, K. J., Mahoney, J. J., and Goles, G. G. (1994), Geology and Geochemical Evolution of Lavas on the Island of Pohnpei.
This map shows the general physiography of Pohnpei. The data layer was created by Island Research & Education Initiative (iREi) (2017) by scanning, georeferencing, and digitizing a highly general paper map prepared by the U.S. Geological Survey (1944) for the Chief of Engineers, U.S. Army as part of the Strategic Engineering Study No. 109 titled Ponape including Pakin and Ant Islands (Carolines) Terrain Intelligence. The map was found in the library collection at the national campus of the College of Micronesia (COM).
This map shows the locations of prominent peaks on Pohnpei. This data layer was developed by Island Research & Education Initiative (iREi) (2017) by merging and slightly modifying data from U.S. Geological Survey's Geographic Names Information System (GNIS) and KML files created by Alex Zuccarelli for Pohnpei Eco-Adventure Map Guide Series (2013). The place names shown on this map are copied from the two sources above and are not authoritative. They require thorough verification and correction of spellings to conform with Pohnpeian orthography.
This map shows the locations of prominent caves on Pohnpei. The data layer was formatted for GIS by Island Research & Education Initiative (iREi) (2017), using exclusively KML files created by Alex Zuccarelli for Pohnpei Eco-Adventure Map Guide Series (2013). It should be noted that Pohnpei has no karst terrain whatsoever, so caves found on the island are all in volcanic bedrock.
