In the framework of the CNR-NextData Project, the DataGRALP working group aims to improve the knowledge on Italian glacial resources, by developing an adequate system for the management of numerical, textual, iconographic and spatial glaciological data. The Central Alps team focuses on the collection, validation, storage and analysis of glaciological data from the Lombardy region. The method adopted will furnish an updated picture of the glacial resource referred to 2006-2007 as well as of existing data related to the 1950s (CGI-CNR Inventory) and to the 1980s (WGI). Updating of data 2006-2007 is based on photointepretative analysis of orthophotos available via WMS (http://www.pcn.minambiente.it/GN/). All data have been managed in GIS environment for constructing a glaciological database. All glacier outlines have been associated to attribute tables for glacier main parameters taking into account the existing international standards (WGMS). The Central Alps hosted 185 active glaciers while 86 were extinct at the date of CGI–CNR Inventory (1959-1962). These glaciers covered an area of about 11.68 km2 (including the Mandrone Glacier as part of the Adamello Glacier). The WGI indicates in 1981-1983 305 glaciers covering an area of about 117 km2. Preliminary data derived from 2006-2007 orthophotos, indicate the existence of more than 250 glacial bodies and 45 glacierets, covering 88.65 km2 and about 26 km2 respectively. Since 1950 about 30 glacial bodies disappeared and, on the contrary, about 60 newly formed glaciers derived from the fragmentation of wider glaciers. Comparing data derived from the CGI-CNR Inventory and the new updated data for the 2006, glaciers of the Central Alps show an areal reduction of about 24%. The amount of areal reduction varies from 7% in the Orobie to 54% in the Tambo-Stella Group. The maximum glacial reduction was registered in the Ortles Cevedale Group where about 13.5 km2 were lost since 1950s.
DATAGRALP - a new database for reconstructing the spatial-temporal evolution of the Glacial Resource in the Italian Alps over the last 100 years in the framework of the NextData Project - The Central Italian Alps
SALVATORE, MARIA CRISTINA;BARONI, CARLO;
2014-01-01
Abstract
In the framework of the CNR-NextData Project, the DataGRALP working group aims to improve the knowledge on Italian glacial resources, by developing an adequate system for the management of numerical, textual, iconographic and spatial glaciological data. The Central Alps team focuses on the collection, validation, storage and analysis of glaciological data from the Lombardy region. The method adopted will furnish an updated picture of the glacial resource referred to 2006-2007 as well as of existing data related to the 1950s (CGI-CNR Inventory) and to the 1980s (WGI). Updating of data 2006-2007 is based on photointepretative analysis of orthophotos available via WMS (http://www.pcn.minambiente.it/GN/). All data have been managed in GIS environment for constructing a glaciological database. All glacier outlines have been associated to attribute tables for glacier main parameters taking into account the existing international standards (WGMS). The Central Alps hosted 185 active glaciers while 86 were extinct at the date of CGI–CNR Inventory (1959-1962). These glaciers covered an area of about 11.68 km2 (including the Mandrone Glacier as part of the Adamello Glacier). The WGI indicates in 1981-1983 305 glaciers covering an area of about 117 km2. Preliminary data derived from 2006-2007 orthophotos, indicate the existence of more than 250 glacial bodies and 45 glacierets, covering 88.65 km2 and about 26 km2 respectively. Since 1950 about 30 glacial bodies disappeared and, on the contrary, about 60 newly formed glaciers derived from the fragmentation of wider glaciers. Comparing data derived from the CGI-CNR Inventory and the new updated data for the 2006, glaciers of the Central Alps show an areal reduction of about 24%. The amount of areal reduction varies from 7% in the Orobie to 54% in the Tambo-Stella Group. The maximum glacial reduction was registered in the Ortles Cevedale Group where about 13.5 km2 were lost since 1950s.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
