Full text: Remote sensing for resources development and environmental management (Volume 1)

gray-levels (extracted from band 5 of the original Thematic Mapper scene), for a 
better readlblllty of the results. In alternative, the output Is presented on a 
transparent support for the superlmposltlon on a topographic map. 
Ill phase: application of the methodology to a sample area 
As a first model of the application of the methodology described here, ar 
area was chosen (around 3200 Km^) south of the Via Emilia corresponding to the 
ridge of the Tuscan-Emillan Appennlnes, In which the following features are 
found from east to west: the principal hydrographical basis, mountains and hills 
of the Savena, Reno, Samoggia, Panaro and Secchla rivers. The area Is of great 
Interest to the study since It contains several wooded and forest formations lr 
different morphological and climatic conditions. The aerial photographs used tc 
establish the Interpretative "windows" were taken from photos made by I.G.M. lr 
1982 and 10 double stereoscopic models were Interpreted In this way taking Intr 
account that each photogram was on a scale varying from 1:30,000 to 1:25,000. 
Landsat Thematic Mapper Imagery were chosen of two dates: December 82 and 
August 84. Preliminary analysis of the Images suggested the exclusion of the 
winter scene from the process, because of the deep shadows and low dynamic. Thr 
comparison between the forest thematic maps elaborated on the basis of 
satellite Images and those obtained from photointerpretation on this sample area 
was more than good, In fact, In most cases the results of the two different 
methods of study coincided on the scale of 1:100,000 (see Tab.4 ). 
Water 
99.0% 
Urban 
97.4 % 
Agriculture 
97.0 % 
Conifers ( C in Tab. 1) 
96.7 % 
Caduceous ( Q and a in Tab.1) 
92.1 % 
Caduceous ( F and f in Tab. 1) 
88.1 % 
Waste land / bush (A in Tab. 1) 
86.4 % 
Overall classification accuracy 
91.4% 
AMADESI E., GIORGI G., VIANELLO G., 1982 - An investigation methodology for 
territorial studies In unknown areas (East 
Kallmantan-TImur, Indonesia). International 
Archives of ISPRS, v. 24 - VII/1, Toulouse. 
AMADESI E.. CASALICCHIO G., VIANELLO G„ 1984 - Methodology of environmental 
research for new settlements In the Eastern 
Sulawesi (Indonesia). International Archives of 
Photogrammetry and Remote Sensing, v. XXV/ A7 
Rio de Janeiro. 
AMADESI E., VIANELLO G., ZECCHI R., 1985 - La teledetezione nella valutazione 
delle risorse naturali: forestazione In Italia. XXI 
convegno AlC-Poster Session, Roma. 
AMERICAN SOCIETY OF PHOTOGRAMMETRY, 1983 - Manual of Remote Sensing v.ll 
Falls Church, Virginia. 
ASPIAZU C., 1977 Application of Landsat-1 data to crop area and 
yield estimates, forest Identification, and soil 
classification In IOWA. IOWA State University. 
REGIONE EMILIA-ROMAGNA, 1976/80 - Carta d'utlllzzazlone reale del suolo In 
scala 1:25.000, Bologna. 
VIANELLO G., 1980 La cartografia dell'utilizzazione reale del suolo 
come strumento di base per la corretta gestione 
del territorio, CNR-P.F. Qualità dell'ambiente, S.P. 
Descrizione Ecosistemi, AC/1/124-129, Roma. 
ENERGETIC FINALIZED PROJECT, SUBPROJECT WOOD AND 
AGRICOLTURE, C.N.R., ITALY 
TAB 4. Classification accuracy on all the test areas 
CONCLUSIONS 
The proposed methodology, based on the calibration with data obtained 
from field surveys of a "sample windows" extended to an area contained In a 
double photographic model on a scale of about 1:30,000, has been shown valid for 
the Identification ot wooded and forest formations by photointerpretation 
methods. 
The experimental application of the most recent techniques of 
tele-surveying, using sultablly elaborated Images supplied by the Landsat 5 
satellite, has given results which consents the extension of this methodology tc 
those regions not completely covered by recent aerial photographs. 
On the basis of the results obtained, compatible with the times of release 
of the new aeras photographed by the I.G.M. and with data trasmitted to the earth 
by Landsat 5, the research for the realization of a thematic map on the scale of 
1:100,000 of the national patrimony In wooded and forest regions will be 
extended to the entire national territory using the photointerpretation method foi 
the Regions covered by flights made after 1982 and the remotely sensed satellite 
data for those Regions where recent aerial photographs are not available. 
BIBLIOGRAPHY 
AMADESI E., VIANELLO G., 1976 - Use of false colour photos for a concrete 
utilization territory (land use) map. XII congress 
of ISP, Helsinki.
	        
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