MOLISEDB.GIS.MO_alteraz_degrado_poly_2

The MO_alteraz_degrado_poly_2 feature class represents the elements of alteration and degradation, area elements acquired from the map of the alterations and degradation of the territory on a scale of 1:25 000. The PTPAAV maps (Piano Territoriale Landscape Enviromental di Vasta Area) are a series of thematic maps drawn up from 1989 and finished and approved at the end of November 1991, are divided into territorial areas for a total of 8 areas identified on the regional territory. The work was carried out by various groups of technicians, a coordination group which established through circulars the standards to be used for the drafting of the plans which ranged from the thickness of the tip of the graph to the type of screen and the shades to be used, and 8 groups one for each area, who created the maps trying to standardize the territorial information as much as possible. The hard copy of this work was delivered to us in 2008 by the Environmental Heritage Office of the Molise Region. The latter already had scans of some thematic maps relating to some areas, the missing ones and in the case of scans that were not suitable for georeferencing, they were scanned. The cartographic basis used by the working groups for the creation of the PTPAAV maps was the IGM in 1:25,000 scale.

Data and Resources

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Additional Info

Field Value
Last Updated April 29, 2023, 23:23 (UTC)
Created April 29, 2023, 23:23 (UTC)
GUID r_molise:{FEB873AA-5594-4239-8C9D-DC5767E2985C}
access_constraints ["Data from public administrations"]
bbox-east-long 15.1099
bbox-north-lat 41.8401
bbox-south-lat 41.6364
bbox-west-long 14.7295
contact-email postmaster@molisedati.it
coupled-resource []
dataset-reference-date [{"type": "creation", "value": "2009-01-15"}]
frequency-of-update
harvest_object_id a6c9e93f-5868-43bd-a6e7-90e1ee40d3a2
harvest_source_id 5045f9a0-4055-43f6-b140-9cd49466666b
harvest_source_title GeoDatiGovIt RNDT
licence ["No restrictions on use"]
lineage The Territorial Landscape-Environmental Plan of a Large Area n. 2 concerns the following municipalities: LUPARA, GUARDIALFIERA, MORRONE DEL SANNIO, PROVVIDENTI, CASACALENDA, LARINO, URURI, MONTORIO NEI FRENTANI, MONTELONGO, ROTELLO, SANTA CROCE DI MAGLIANO, SAN GIULIANO DI PUGLIA, COLLETORTO, BONEFRO. For the data acquisition process the ESRI ArcGis 9.3 software with service pack 1 was used. All the tools made available by ArcGis 9.3 for data creation were used. In the computerization of the data relating to the landscape plans, a single Geodatabase was created with all the data, in order to correctly create and manage the entire data processing and creation flow. A UML model was not needed in Visio because the data to be acquired did not have uniform legends between the different scopes and consequently each of them had characteristics of its own. The acquisition process required the numerical transformation of the paper data relating to the information of the aforementioned area. The acquisition took place by scanning in grayscale with 200 dpi resolution using the Colortrac Smartlf Cx4 scanner and associated Smartlf software version 1.4.0.1. The raster files were georeferenced using ESRI ArcMap on the basis of corresponding points of the IGM 1:25000 tablets, which were loaded into the I SAA within the raster catalog of the same name in the personal geodatabase Raster_Molise.mdb (original reference system ED50-UTM32). During the georeferencing phase, files with the extension (*.txt) were also saved containing the georeference points and log files containing, in addition to the latter, information relating to errors, the feature classes obtained and any annotations. The editing phase involved the initial creation of the lines by setting the snapping to the border lines of the adjacent areas, and subsequently the linear data obtained was transformed into polygonal data using the "Feature To Polygon" tool. The methodology just described allows to produce a topologically correct geometry, free of voids between areas, free of overlapping areas, lines or edges: a linear shapefile was initially created with the contours of the polygons, created following a structure in which each segment represents an arc with a node at the ends. The arc structure was then transformed into polygons using the "Feature to polygon" tool of ESRI ArcToolBox. The polygonal shapefile created with this methodology was subsequently imported into the GDB_2_piani_paesistici.mdb geodatabase using the "Import Feature Class" function. Therefore, the feature classes present in the GDB_2_piani_paesistici geodatabase were built starting from a digitization process from raster in format (*.tif): they were initially created with ESRI ArcCatalog and subsequently completed using the tools of the ESRI ArcMap Editor on the basis of the georeferenced raster. The structure of the feature classes was organized with ESRI ArcCatalog with the creation of special fields containing the attributes of the features based on the information described in the legend, possibly organized into domains and subtypes (in the case of a hierarchical structure of the attributes), as much as possible consistent with the paper legend. Lacking substantial uniformity in the legends of the corresponding thematic maps in the various fields, it was not possible to establish valid domains for the entire Geodatabase, and in most cases each domain is used for a single field of a single feature class. The data created they have been reprojected in geographic WGS84 using IGM Verto 2000 software, which uses the grid. They have been loaded, maintaining the information structure created, through the basic functions of ArcGIS in the SVA database, on RDBMS DB2.
metadata-date 2012-05-04
metadata-language ita
progress
resource-type dataset
responsible-party [{"name": "Molise Dati S.p.A", "roles": ["pointOfContact"]}]
spatial {"type": "Polygon", "coordinates": [[[14.7295, 41.6364], [15.1099, 41.6364], [15.1099, 41.8401], [14.7295, 41.8401], [14.7295, 41.6364]]]}
spatial-data-service-type
spatial-reference-system WGS84
spatial_harvester true