Remote sensing for resources development and environmental management: Remote sensing for resources development and environmental management

damen, m. c. j.

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Multivolume work

Persistent identifier:: 856342815

Title:: Remote sensing for resources development and environmental management

Sub title:: proceedings of the 7th international Symposium, Enschede, 25 - 29 August 1986

Year of publication:: 1986

Place of publication:: Rotterdam; Boston

Publisher of the original:: A. A. Balkema

Identifier (digital):: 856342815

Language:: English

Additional Notes:: Volume 1-3 erschienen von 1986-1988

Editor:: Damen, M. C. J.

Document type:: Multivolume work

Volume

Persistent identifier:: 856641294

Title:: Remote sensing for resources development and environmental management

Sub title:: proceedings of the 7th international Symposium, Enschede, 25 - 29 August 1986

Scope:: IX Seiten, Seiten 551-956

Year of publication:: 1986

Place of publication:: Rotterdam; Boston

Publisher of the original:: A,. A. Balkema

Identifier (digital):: 856641294

Illustration:: Illustrationen, Diagramme

Signature of the source:: ZS 312(26,7,2)

Language:: English

Usage licence:: Attribution 4.0 International (CC BY 4.0)

Editor:: Damen, M. C. J.

Editor:: International Society for Photogrammetry and Remote Sensing, Commission of Photographic and Remote Sensing Data

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2016

Document type:: Volume

Collection:: Earth sciences

Chapter

Title:: 5 Non-renewable resources: Geology, geomorphology and engineering projects. Chairman: J. V. Taranik, Liaison: B. N. Koopmans

Write comment:: Wegen zu enger Bindung kommt es teilweise im Original zu Textverlust.

Document type:: Multivolume work

Structure type:: Chapter

Chapter

Title:: Digital analysis of stereo pairs for the detection of anomalous signatures in geothermal fields. E. Zilioli, P. A. Brivio, M. A. Gomarasca & R. Tomasoni

Document type:: Multivolume work

Structure type:: Chapter

685 Symposium on Remote Sensing for Resources Development and Environmental Management / Enschede / August 1986 Digital analysis of stereo pairs for the detection of anomalous signatures in geothermal fields E.Zilioli, P.A.Brivio, M.A.Gomarasca & R.Tomasoni Istituto per la Geofisica della Litosfera, CNR, Milan, Italy ABSTRACT: A campaign of infrared aerial surveys for mapping heat flow anomalies was performed in the geother mal field of Travale (Italy). Direct methods of quantitative analysis of thermographies and deduction of seco ndary physical quantities were applied: three spots of possible geothermal interest have "been individuated. Further investigation was developed on the basis of spectral signature of vegetation; a third flight was ac complished in springtime to provide infrared false colour stereo-pairs at i/12,500 scale. Color transparencies have been scanned by a drum microdensitometer and a quantitative computation was carried out. The suspected areas so identified have been compared to other spots where ground and depth conditions are known. 1 PREVIOUS WORK This paper deals with the remote sensing activity in the frame of the Energy Project sponsored by the Na tional Research Council of Italy. Previous work is here summarized: Data Acquisition. Campaigns included 2 thermal IR surveys by a dual-channel analogue scanner DS-1230 realized at the steady-state conditions of the diu rnal thermal transitory, in wintertime. During the flight operations meteorological stations were arr anged for corrections and calibrations. A stereo IR False Colour coverage was acquainted on the same a- rea in springtime. Thermal Data Processing. The black-body referenced thermographies were digitized and a correlation be tween the calibration temperature levels and the Di gital Numbers (DN) was obtained (Bolzan et al. 1982). Table 1. Summary of spectral bands utilized . Means Wavelength ( ym) Band 0.5-0.6 Green Photography 0.6-0.7 Red 0.7-0.9 near IR 1.0-2.O near IR Scanner 4.5-5-5 middle IR 9.5-11 thermal IR By means of calibrated thermographies we obtained 3 new derived quantities we called Function of Appare- nt Thermal Inertia (FATl), Entropy Variation (EV) and Sensitivity (s) respectively (Zilioli et al. 1985). The common solutions of these equations indi viduated 3.spots on the ground of possible geother mal interest. 2 DESCRIPTION OF THE SUSPECTED AREAS Location of the suspected areas is shown within the frames outlined in fig. 1. According to the classi fication by Pavari (19^2), the study area is inclu ded in the phytoclimatic belt of Italy: Castanetum, Figure 1. Location of the study area. Frames and sub- frames are pointed out. subzone cold with Quereus spp deciduous woods and de fined by a hilly zone ranging between 300 and 800 me ter. Land use is about 75% forested and the remaining 25$ pasture and sown, almost distributed on the right and on the left slope'Of the Saio creek basin, respec tively.

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