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International cooperation and technology transfer

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fullscreen: International cooperation and technology transfer

Monograph

Persistent identifier:: 856489328

Author:: Mussio, Luigi

Title:: International cooperation and technology transfer

Sub title:: Parma, Italy, February 15 - 19, 1999, Bandung, Indonesia, April 13 - 14, 1999, Cotonou, Benin, December 6 - 10, 1999 ; proceedings of the workshops

Scope:: XXX, 398 Seiten

Year of publication:: 1999

Place of publication:: London

Publisher of the original:: RICS Books

Identifier (digital):: 856489328

Illustration:: Illustrationen, Diagramme

Language:: English

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

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:: Monograph

Collection:: Earth sciences

Chapter

Title:: The Spacewise Approach to the Data Treatment for the SAGE Mission Project. A. Albertella, F. Migliaccio, F. Sansó.

Document type:: Monograph

Structure type:: Chapter

International cooperation and technology transfer
Cover
ColorChart
Title page
FOREWORD.
Table of Contents.
Compte-rendu of the WG VI/3. Mariano Cunietti Memorial Meeting in Parma. Mojca Kosmatin Fras, WG VI/3 Co - chairperson.
Compte - Rendu of the ISPRS WG VI/3. High Level Tutorial in Bandung. Fahmi Amhar, Tutorial Chairperson.
Compte-rendu of the Wg VI/3. Luigi Solaini 10th Anniversary. Memorial Meeting in Cotonou. Luigi Mussio, WG VI/3 Chairperson.
Opening.
Closure.
Welcome addresses.
Opening.
Closure.
PADUA, BAHIA BLANCA, PERUGIA, PARMA, BANDUNG AND COTONOU, MEETING - LIST OF PARTICIPANTS.
ISPRS WG VI/3 - LIST OF CORRESPONDENTS.
VIRTUAL REALITY (VR) APPLIED TO ENVIRONMENT REPRESENTATIONS: SOME EXAMPLES AT UNIVERSITY OF PADUA (ITALY). V. Achilli, F. Barison, A. Vettore.
SURVEYING METHODOLOGIES IN THE PHLEGREAN VOLCANIC DISTRICT (NAPLES - ITALY). Achilli V., Borgstrom S., Capone M., Del Gaudio C., De Martino P., Klees R., Ricciardi G. P., Ricco C., Sepe V., Usai S., Vettore A.
Integration of GPS and Conventional Surveying For Positioning of The Mobile Phone Antennae in A Local System. Al-Bayari O., Barbarella M., Fazio C..
The Spacewise Approach to the Data Treatment for the SAGE Mission Project. A. Albertella, F. Migliaccio, F. Sansó.
DATA AND METADATA A NEW CONCEPT IN ARCHIVING ARCHITECTURAL DATA. Elena ALBERY, Fulvio RINAUDO.
NOTES ABOUT TOPOGRAPHIC AND PHOTOGRAMMETRIC SURVEYING FOR THE INVESTIGATION OF THE DOME BEARING VERTICAL WALLS IN S. MARIA DEL FIORE CATHEDRAL OF FLORENCE. P. Aminti, I. Chiaverini, D. Ostuni.
NEW SURVEY OF MORIMONDO ABBEY. Bruno Astori, Luca Rinaldi, Grazia Tucci.
SARNO (ITALY) LANDSLIDES: DIFFERENT METHODOLOGIES OF DATA ACQUISITION. M. Barbarella, M. Fiani.
DIGITAL PHOTOGRAMMETRY AND LASER RANGE CAMERA FOR PHYSIC MODEL GEOMETRY DETERMINATION. M. Barbarella, A. Vettore.
SAMPLING AND VARIANCE ANALYSIS IN REGGIO CALABRIA. Vincenzo Barrile and Rossella Nocera.
GEOID ESTIMATION THROUGH GPS OBSERVATIONS. R. Barzaghi, A. Borghi.
DATA PROCESSING VERSUS GEOMATICS. T. Bellone, L. Mussio, C. Nardinocchi.
PERTINENCE DE L'OFFRE DE FORMATION DU GDTA A' L'INTERNATIONAL. Jean-Luc BESSIS.
THE ARCHITECTURAL AND ARCHAEOLOGICAL PHOTOGRAMMETRICAL EXPERIENCES IN GREECE AND MIDDLE ASIA. Giorgio Bezoari.
PROCEDURES OPTIMISATION IN THE QUALITY SYSTEM. G. Bezoari, F. Guzzetti.
CARTOGRAPHY FOR TOWN PLANNING. Giorgio Bezoari, Attilio Selvini.
INDEXING TREE METHODS AND SPATIAL ORDERING FOR MAPS AND GEOGRAPHIC DATA: AN OVERVIEW AND APPLICATION TO THE GEODETIC GIS PROJECT. L. Biagi, M. A. Brovelli, M. Negretti and C. Saldarini.
GIS/WEB DESIGN FOR INTERNET/INTRANET DATA SHARING. Piero BOCCARDO, Giuliano COMOGLIO, Nadia CORGIAT LOIA.
SURFACE SPATIAL ANALYSIS IN ARCHITECTURAL AND ARCHAEOLOGICAL SURVEY: DIGITAL AND ANALYTICAL PROCEDURES. Raffaella BOLOGNA, Maurizio MINCHILLI.
VERY LARGE SCALE MAPPING OF THE ARCHAEOLOGICAL SITE IN CERVETERI (ITALY): DATA COLLECTION FROM DIGITAL AUTOMATIC D.T.M., ORTHOPROJECTION AND ANALYTICAL STEREOPLOTTING. Raffaella BOLOGNA, Maurizio MINCHILLI.
DES COMPOSANTS LOGICIELS GEOGRAPHIQUES POUR ELARGIR ET DEMOCRATISER L'ACCES A LA TECHNOLOGIE ETA L’INFORMATION GEOGRAPHIQUE. SPATIAL SOFTWARE COMPONENTS FOR WIDENING AND DEMOCRATIZING ACCESS TO GEOGRAPHIC INFORMATION AND TECHNOLOGY. Patrice BOURSIER, Michel EBOUEYA, Arunas STOCKUS, Alain BOUJU, Frédéric BERTRAND.
VALIDATION OF AN ANCIENT PERSPECTIVE IN LECCO (ITALY). PIETRO BROGLIA, EVA SAVINA MALINVERNI, LUIGI MUSSIO.
THE USE OF SPATIAL-ORIENTED DATA BASE MANAGEMENT SYSTEMS (DBMS) FOR ITALGEO GEOID MANAGEMENT BY GIS. M. A. Brovelli, F. Migliaccio and V. Tornatore.
COMPARISON BETWEEN PHOTOGRAMMETRICAL SURVEYS OF THE ST.STEFANO CHURCH'S CLOISTER IN BOLOGNA AND METRICS EVALUATIONS OF THE OPERATIONS OF RESTORATION. A. Capra, S. Gandolfi, G. Lombardi, A. Zanutta.
EXPERIMENTAL TESTS IN DIGITAL IMAGES PLOTTING. M. Caprioli, P. De Fazio.
GVM - GAC PROCESSING CHAIN : A REMOTE SENSING TOOL FOR ENVIRONMENTAL APPLICATIONS AT CONTINENTAL LEVEL. C. Carmona-Moreno, M. Turchini, M. F. Cruz Martinez, J. Baron, J. Lopez Raya José, A. Moreno Ruiz.
INTERNATIONAL COOPERATION AND TECHNOLOGY TRANSFER GAIA: global astrometry from space at 10 [...] level. D. Cardio, B. Bucciarelli, M. Gai, M. G. Lattanzi and S. Cesare.
ESTABLISHMENT OF A LEVELLING NETWORK FOR THE MONITORING OF POSSIBLE VERTICAL MOVEMENTS IN THE AREA OF PISA - SAN GIULIANO TERME PONTASSERCHIO-MIGLIARINO PISANO (ITALY). G. Caroti, E. Mengali, A. Rossi, C. Scalese.
ESTIMATING MEASUREMENT PRECISION BY MEANS OF MEASUREMENT DIFFERENCES. V. Casella.
AUTOMATIC FOREST AREA RECOGNITION USING GIS IMAGE ANALYSIS CAPABILITY. Marco Ciolli, Paolo Zatelli.
NEW APPROACH TO THE ESTIMATION OF SNOWPACK ESTENSION VIA REMOTE SENSING. Alessandra Colombo, Giovanmaria Leoni.
CULTURAL HERITAGE WEB SITES: THE SUPPORT OF GEOMATICS. Luigi Colombo.
A METHOD FOR ESTIMATING 3D SHAPES MOTION BY A FREQUENCY DOMAIN TECHNIQUE. G. M. Cortelazzo, A. Guamieri, A. Vettore.
LA FORMATION AU C.R.T.O. A. Coulibaly.
A COMPUTER PROGRAM FOR THE VARIANCE-COVARIANCE ESTIMATION OF GPS BASELINE VECTORS. N. Crocetto, M. Gatti, C. Materazzo, L. Toscano.
INTERFEROMETRIC SAR CALIBRATION. M. Crosetto, B. Crippa.
OPTIMISATION DES DATES D'ACQUISITION DES IMAGES TELEDECTION EN ZONE SOUDANO-GUINEENNE POUR UN SUIVI DES ECOSYSTEMES. Cheick Hamala DIAKITE.
FIELD TESTS ON DGPS USING OMNISTAR CORRECTION. D. Dominici, M. L. Pecetti, F. Radicioni, A. Stoppini.
CONTROL DIRECTIONS FOR THE CALIBRATION OF TERRESTRIAL NON-METRIC CAMERAS. Gabriele Fangi.
EXPERIENCES OF VIRTUAL REALITY. G. Fangi, G. Gagliardini.
THE GRID METHOD, A SIMPLE PROCEDURE FOR THE DETERMINATION OF THE LENSE RADIAL DISTORTION. G. Fangi, Carla Nardinocchi.
DEM'S COMPARISON FOR THE EVALUATION OF LANDSLIDE VOLUME. M. Fiani, S. Troisi.
AUTOMATIC DEM GENERATION IN QUARRIES. Gianfranco FORLANI, Livio PINTO.
STATIC CONTROL OF PALAZZO DELLA RAGIONE IN PADUA. Alberto Giussani, Giorgio Vassena.
Conditions préalables au fonctionnement efficace et durable d'un SIG à base de télédétection. Claus-Peter Gross.
PROCEDURES OF CORRECTION OF THE GEOMETRY DISTORSIONS FOR DIGITAL IMAGES. A. Guarnieri, A. Vettore.
GEOPLANTRANSF: A SOFTWARE FOR THE GEOREFERENCING OF DIGITAL IMAGES BY USING PLANE TRASFORMATIONS. Francesco Guerra, Caterina Balletti, Davide Miniutti.
LA DECADENCE EN PRODUCTION CARTOGRAPHIQUE EN AFRIQUE: CAUSES ET THERAPIES DE REDEMARRAGE. A. L. Gueye, B. F. Agbo, P. M. Kibora.
GEOMATICS EDUCATION IN NIGERIA: THE CURRENT DRIVES. A. L. Gueye, O. Aguda.
DE LA TOPOGRAPHIE CONVENTIONNELLE VERS LA GEOMATIQUE: UNE EVOLUTION TECHNOLOGIQUE DE L'ENSEIGNEMENT TECHNIQUE DANS LE SYSTEME EDUCATIF CAMEROUNAIS. HAPPI MANGOUA FREDERIC.
INTERNET-ATLAS OF NATURAL AND AGRONOMIC RESOURCES IN NIGER AND BENIN - A TOOL FOR PRESENTATION AND EXCHANGE OF SPATIAL DATA - . L. Herrmann, K. Vennemann, K. Stahr.
Mapping from Space. Gottfried Konecny.
CONTEMPORARY METRICAL DOCUMENTATION OF CULTURAL HERITAGE ARCHITECTURE. Mojca Kosmatin Fras.
Acquisition of Topographic Data by Laser Scanning and Digital Photogrammetry. Karl Kraus.
The GeoMed Project: GIS and Spatial/Temporal Statistics in Public Health. Andy Long, Mark Wilson, Geoff Jacquez, Leah Estberg.
GPS and GLONASS in Italy. Giorgio Manzoni.
GEOMATICS EDUCATION AND TRAINING IN BOTSWANA. L. Maphale, M. B. Manisa, B. Nkwae, C. Ezigbalike.
THE TWOFOLD NATURE OF MEASUREMENT AS EMPIRICAL AND LINGUISTIC OPERATION. Luca Mari.
UNCERTAINTY IN MEASUREMENT: A SURVEY. Luca Mari.
A RECTIFICATION OF DIGITAL IMAGES OBTAINED FROM AN ANALOGICAL VIDEORECORDING. Patrizia Midulla.
GENE FUCTIONAL MAPPING. Luciano Milanesi, Raffaella Rizzi.
THE APPLICATION OF GEOGRAPHIC INFORMATION SYSTEMS IN ENVIRONMENTAL IMPACT ASSESSMENT IN AFRICA: CHALLENGES AND OPPORTUNITIES. MLENGE FANUEL MGENDI.
GIS: TEACHING EXPERIENCE IN THE COURSE AT DIIAR POLITECNICO OF MILAN. Carlo MONTI, Raffaella BRUMANA, Luigi FREGONESE.
GIS TECHNOLOGY TO SUPPORT SURVEY DATA AND MANAGEMENT OF DIFFERENT QUARRY TYPOLOGIES. Carlo MONTI, Raffaella BRUMANA, Luigi FREGONESE, Giorgio Vassena.
LA FORMATION ET LA RECHERCHE AU CENTRE NATIONAL DES TECHNIQUES SPATIALES. A. OUSSEDIK, M. A. TRACHE.
GEOID BEHAVIOUR IN THE BAHIA BLANCA AREA. Raúl Perdomo y Daniel Del Cogliano, Nilda Di Croché, Esteban Napal, Beatriz Aldalur, Ana María De Aduriz, Pablo Napal, Nora Plana, Irene Pintos, Miguel Angel Martínez, Santiago Rosso.
GEOID MODELLING IN THE SOUTHERN REGION OF THE BUENOS AIRES PROVINCE. Raúl Perdomo, Daniel Del Cogliano, Nilda Di Croche, Esteban Napal, Beatriz Aldalur, Pablo Napal, Irene Pintos.
SATELLITAL IMAGING, INFORMATION SUPPORT OF A PROVINCIAL CARTOGRAPHIC PROJECT. E. QÜESTA, R. YANICELLI, V. FARES, L. LUNA, E. GOLDAR, D. SANDEZ, C. ISORNI, W. COSTA, E. TONELLI.
FORMATION ET PROJETS EN GEOMATIQUE MIS EN PLACE PAR L'ASSOCIATION POUR LE DEVELOPPEMENT DE L'INFORMATION ENVIRONNEMENTALE (ADIE) EN AFRIQUE CENTRALE. Ralph Ridder, Brice Montfraix, Stéphane Lombardo.
CONSTRUCTION OF BASIC DIGITAL MAP FOR CITY GIS BY STEREOPHOTOGRAMMETRIC APPROACH. B. Ruzgiene.
SAGE: AN ITALIAN PROJECT OF SATELLITE ACCELEROMETRY. F. Sanso, A. Albertella, G. Bianco, A. Della Torre, M. Fermi, V. lafolla, A. Lenti, F. Migliaccio, A. Milani, A. Rossi.
THE TEACHING OF REMOTE SENSING IN SOUTH AMERICA. Tania Maria Sausen.
CROP GROWTH MODELLING IN MALI BASED ON ERS SCATTEROMETER INFORMATION. Pierre C. Sibiry Traoré, Mamadou D. Doumbia, Salifou Sissoko, Abderamane Yoroté, Wolfgang Wagner, Klaus Scipal, Anne Gobin, Paul Campling, Erik Nobbe, Rob Beck.
TER LOW COST SMALL SATELLITES FOR EARTH OBSERVATION AND TECHNOLOGY TRANSFER TO DEVELOPING COUNTRIES. Martin Sweeting, Wei Sun.
MAPPING OF HYDROTHERMAL ALTERATION BY REMOTE SENSING AT THE ACOCULCO CALDERA, PUEBLA, MEXICO. VICENTE TORRES RODRÍGUEZ & GABRIEL ORIGEL GUTIÉRREZ.
ISSUES AND APPROACHES IN MAPPING THE IMPACTS OF MINING ON THE ENVIRONMENT IN AFRICA (WITH TEST CASE FROM KITWE MINE, ZAMBIA). Tsehaie Woldai, Daniel Limptlaw.
POTENTIAL FOR COMPUTER ASSISTED DISTANCE LEARNING IN ZAMBIA: WHAT ARE THE CONSTRAINTS AND THE WAY FORWARD. Paul Zambezi.
Appendix: Authors and Co-authors Index.
Cover

Full text

21 
The Spacewise Approach to the Data Treatment for the 
SAGE Mission Project 
A.Albertella, F.Migliaccio, F.Sansó 
Dip. IIAR, Sez. Rilevamento, Politecnico di Milano, Milano, Italy 
ABSTRACT: 
After a call for proposals for small satellite missions from the Italian Space Agency (ASI), a group of Italian 
research teams and industries led by the Politecnico di Milano proposed the concept of SAGE, a mission aimed 
at determining the gravity field of the Earth by means of high-low SST, which means that the satellite orbit is 
determined by GPS, while the non-gravitational perturbations are determined by a three-axes accelerometer. 
This is basically the same concept of the CHAMP mission [Reigber et al., 1996]. SAGE underwent a Phase A 
Study during the year 1998 [ASI, 1998]. In this framework, the task of the Politecnico di Milano group was to 
analyze the data by means of the spacewise approach. The complete spacewise approach, besides studying new 
simulations of the data to be expected from SAGE, requires to perform the inversion of Hill’s equations, to form 
average values on a regular grid over the sphere and to recover the gravity field coefficients. The simulations are 
requested in order to: assess the accuracy of the data obtained after the inversion of Hill’s equations introducing 
a realistic measurement noise; formulate the overdetermined boundary value problem to be solved; determine 
indices enabling to evaluate the performances of the solution. 
1 The concept of space ac- 
celerometry 
The proposal of the mission SAGE (Satellite Ac- 
celerometry by Gravity field Exploration) consisted in 
using a GPS receiver together with an accelerometer on 
a low, polar orbit satellite. The accelerometer proof- 
mass, positioned in the centre of mass of the satellite, is 
subject to a purely gravitational acceleration g, while 
the centre of mass of the satellite is subject (besides the 
same acceleration g) also to all non-gravitational forces 
which act on the surface, whose sum is /. Therefore 
the accelerometer gives a direct measure of /. 
The GPS tracking (aided by a SLR device) allows to 
reconstruct (with very high relative precision between 
two points along an orbit arc) the satellite trajectory 
x(t). The difference between the “observed” orbit x(t) 
and the orbit x(t) modelled by all available information 
is due to the residual gravitational effects: 
£(*) = x{t) - x(t) (1) 
where £(£) is the orbit anomaly, equivalent to a “virtu 
al” orbit ruled by the residual gravitational potential. 
From £(£) it is possible, by differencing and smooth 
ing, to obtain observed values of g along the orbit, 
which can be integrated to give the harmonic coeffi 
cients of the field, in the framework of an overdeter- 
mined boundary value problem. 
In particular, we write the equation of motion of the 
satellite as [Bassanino et al., 1992] 
x — VuoGD + V<5it(r) + (x) + / (x) (2) 
considering the gravitational potential u(x) as the sum 
of a reference potential uo(x) and a residual part du(x). 
In this equation f g (x) represents the effects of the sun, 
moon and tides (which can be modelled) and / (®) 
represents the effect of the surface forces (mainly due 
to the drag, which is measured by the accelerometer). 
It must be remarked that f g and f ng can be computed 
along the nominal orbit without significant errors. 
The residual gravitational effects 5g along the orbit 
can be obtained by inverting Hill’s equations, which 
are written here under the hypotheses that £ is small 
and that the orbit arc is circular: 
Ca +2u£ r = Sg a 
ir -2w{ a -3u 2 ( r = <5g r (3) 
L +w 2 fo = Sg„ 
The indices a, r, o respectively denote the along track, 
radial and orthogonal (out of plane) component. 
This system is inadequate to produce realistic orbit 
ephemerides; nevertheless it is useful because it can 
certainly be used to produce simulations, to under 
stand how well (3) can be inverted. The general so 
lution of (3) can be written as 
¿(i)=ifc(t)+S p (i) (4)

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