Lead PI(s): Richard B. Lammers, Lawrence C. Hamilton Collaborating PI(s): Jack Kruse Description: The Pan-Arctic Political Mask, is a raster based dataset of administrative areas and political boundaries in EASE projection (pixel size 25.067525 meters). This dataset was produced by combining and rasterizing several vector based political datasets. Among these are the Rusray dataset created by Alexander Perepechko and Dmitry Sharkov for Russia, the Standard Geographical Classification (SGC) 2001 for Canada, the Census 2000 County and County Equivalent Areas dataset for the United States and the GADM database of Global Administrative Areas for Europe. The administrative units for Greenland were taken from the Wikipedia article 'Administrative divisions of Greenland' (accessed 6/23/2010). The Dataset consists of 7 variables. A unique key used for identification (ADMINCODE) and three pairs of Name/Code variables corresponding to the three adminstrative levels Nation, SubNation and Admin. Metadata Contact(s): Stanley Glidden , stanley.glidden@unh.edu Discipline: Human Dimensions GCMD Science Keyword: Human Dimensions > Human Health > Vital Statistics ISO Topic: Society Data Format(s): Other Ascii Related URLs: http://http://rims.unh.edu/PoliticalMasks/ IPY Project: Time Frequency(ies): Location(s): Global Progress: Completed - Dataset fully collected/analyzed. Northernmost Latitude: 90 degrees Southernmost Latitude: 0 degrees Westernmost Longitude: -180 degrees Easternmost Longitude: 180 degrees Time Coverage: Start - Jan 1, 2009 End - Jan 1, 2009 Language: English Metadata Profile: CADIS profile - 0.1 Platform(s): Field Survey Instrument(s): Other Use and Access Restrictions: Unrestricted access No user constraints Notes: This data set is an updated version of the Extended Admin Subdivisions Hybrid Mask. The polyons in Greenland were updated and a number of zero pixels were filled with the most appropriate surrounding raster value. These files are based on admincode pan_arctic_mask_adm_v1.0 is the orginal version of the data. 01/26/2012 pan_arctic_mask_adm_v1.2.asc was produced from the above. Hand edits were done to reclassify some pixels that were coded as water from the original input data set. Also some pixels along the coast that were previously classified as zero due to land mask differences were reclassified.