Glacier Inventory of the South Patagonian Icefield

###############################################################################################REFERENCE This set of ShapeFile vector files contains the glacier inventory used and published in the paper: De Angelis. H. 2014. Hypsometry and sensitivity of the mass balance to changes in equilibrium line altitude: the case of the South Patagonian Icefield. Journal of Glaciology 219(60), 14-28. The inventory was compiled by visual interpretation of cloud-free Landsat 5 TM imagery acquired on 2001-03-12. The interpretation was made with the aid of a shaded relief model (16x vertical exaggeration) and artificially computed ''water drainage flow lines'', both derived from Shuttle Radar Topography Mission (SRTM) data. See the paper for more details. The inventory is also part of the Randolph glacier inventory: Arendt, A., T. Bolch, J.G. Cogley, A. Gardner, J.-O. Hagen, R. Hock, G. Kaser, W.T. Pfeffer, G. Moholdt, F. Paul, V. Radić, L. Andreassen, S. Bajracharya, M. Beedle, E. Berthier, R. Bhambri, A. Bliss, I. Brown, E. Burgess, D. Burgess, F. Cawkwell, T. Chinn, L. Copland, B. Davies, \textbf{H. De Angelis}, E. Dolgova, K. Filbert, R. Forester, A. Fountain, H. Frey, B. Giffen, N. Glasser, S. Gurney, W. Hagg, D. Hall, U.K. Haritashya, G. Hartmann, C. Helm, S. Herreid, I. Howat, G. Kapustin, T. Khromova, C. Kienholz, M. Koenig, J. Kohler, D. Kriegel, S. Kutuzov, I. Lavrentiev, R. LeBris, J. Lund, W. Manley, C. Mayer, E. Miles, X. Li, B. Menounos, A. Mercer, N. Moelg, P. Mool, G. Nosenko, A. Negrete, C. Nuth, R. Pettersson, A. Racoviteanu, R. Ranzi, P. Rastner, F. Rau, J. Rich, H. Rott, C. Schneider, Y. Seliverstov, M. Sharp, O. Sigurðsson, C. Stokes, R. Wheate, S. Winsvold, G. Wolken, F. Wyatt, N. Zheltyhina. 2012, Randolph Glacier Inventory [v2.0]: A Dataset of Global Glacier Outlines. Global Land Ice Measurements from Space, Boulder Colorado, USA. Digital Media. ###############################################################################################LICENSE This work is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-sa/3.0/deed.en_US. You are free:to Share — to copy, distribute and transmit the workto Remix — to adapt the workto make commercial use of the work Under the following conditions:Attribution — You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work).Share Alike — If you alter, transform, or build upon this work, you may distribute the resulting work only under the same or similar license to this one. ###############################################################################################GEOGRAPHIC PROJECTION Universal Transverse Mercator zone 18F South referred to the WGS84 ellipsoid. PROJCS["WGS 84 / UTM zone 18S",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.01745329251994328,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-75],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",10000000],AUTHORITY["EPSG","32718"],AXIS["Easting",EAST],AXIS["Northing",NORTH]] ###############################################################################################DESCRIPTION OF DATA COLUMNS The columns in the database should be self-explanatory, but are given here for clarity: NAME glacier name, unnamed glaciers referred to as "UN"CENTER_LON geographical longitude of centroidCENTER_LAT geographical latitude of centroidCENTER_X x coordinate in meters (UTM18S,WGS84)CENTER_Y y coordinate in meters (UTM18S,WGS84)AREA_KM2 glacier area (km2)AREA_ERROR error in glacier area (km2)HMAX_M maximum elevation (m), as derived from SRTMHMIN_M minimum elevation (m), as derived from SRTMHAVG_M average elevation (m), as derived from SRTMHMEDIAN_M median elevation (m), as derived from SRTMHMODE_M mode of elevation (m), as derived from SRTMSNLE_M elevation (m) of average snowline (closely corresponding to equilibrium line) [see paper for derivation]SNLE_ERROR error in elevation (m) of average snowline (closely corresponding to equilibrium line) [see paper for derivation]AAR accumulation area ratioAAR_ERROR error in AARSLOPE_ELA glacier slope (degrees) at ELASLOPE_AVG average glacier slope (degrees)