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Geodätischer Nachweis rezenter horizontaler Krustenbewegungen auf dem Gebiet der ehemaligen DDR . eine kritische Analyse / R. Wittenburg (1994)
Titre : Geodätischer Nachweis rezenter horizontaler Krustenbewegungen auf dem Gebiet der ehemaligen DDR . eine kritische Analyse Titre original : [La preuve géodésique des récents mouvements horizontaux de la croûte terrestre sur le territoire de l'ancienne Allemagne de l'est : une analyse critique] Type de document : Thèse/HDR Auteurs : R. Wittenburg, Auteur Editeur : Munich : Bayerische Akademie der Wissenschaften Année de publication : 1994 Collection : DGK - C Sous-collection : Dissertationen num. 432 Importance : 159 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-3-7696-9475-8 Note générale : Bibliographie Langues : Allemand (ger) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale
[Termes IGN] Allemagne
[Termes IGN] analyse comparative
[Termes IGN] déformation de la croute terrestre
[Termes IGN] erreur systématique
[Termes IGN] modèle de Gauss-Markov
[Termes IGN] réseau géodésique local
[Termes IGN] résiduIndex. décimale : 30.82 Applications géophysiques de géodésie spatiale Résumé : (Auteur) Among the special developments in geodesy in former East Germany, there was a countrywide triangulation carried out around 1960. A completely new network configuration was created in contrast to earlier triangulations. In spite of this, a connection can be established via a considerable number of identical points. This allows congruency analysis (coordinate comparison) of these networks created with a relatively large distance of epochs.
Therefore, there are good conditions in eastern Germany for the investigation of recent horizontal crustal movements.
While no global network comparison (for the entire territory of former East Germany) has been carried out so far, such comparative analysis has been done for local triangulation networks in several areas. Chapter 1 contains an overview of these investigations.
The above studies provided valuable preliminary information for continued research using modern me--thods of investigation. It is thought to be possible to conduct these continued investigations more efficiently using a suitable design of experiments.
The methods used for network comparison are analyzed in detail in Chapter 2.
All above network comparisons are based on calculations done by the former Kombinat Geodasie und Kartographie, Leipzig. In former East Germany, this was the only firm entitled to do such calculations. Clients and subsequent users did not have access to the calculation documents, and only limited access to the original data. Due to this protected and uncontrollable operation of Jthe firm, further evaluation had to be done bona fide assuming the correctness of the provided calculation results. It will be shown that this bona fide approach is not necessarily scientific.
The necessity of a review was recognized from the contradictions described in Chapter 3. Highly sig--nificant contradictions in the overlapping area of neighbouring network comparisons (= external model residuals) were observed even after the elimination of contradictions due to the calculation method used (fixed point method) (= internal model residuals = SYS 1).
Since the access to the calculation documents of the geodetic firm was denied, an analysis method based on measurements was developed and realized in the program "Test Net Siidharz" (see Chapter 4). The first result revealed was a fundamental methodological error:
The observations of the epoch "1900" were included in the adjustment (in the gauss-kruger plane) without directional reduction, whereas the observations of the epoch "1960" were reduced to the corresponding reference meridian.
In the gauss-markov (GM) model used, this error led to systematic distortions (= SYS 2) of the solutions which were mathematically modelled in an extension of the GM model. This made possible the correction (coordinate correction) of the erroneous solutions without having access to the measurement data. Chapter 5 describes the successful verification of this correction method.
After the elimination of SYS 2, a further systematic pattern (= SYS 3) was observed in several network comparisons (Chapter 6). This also was shown to be a conformal stretch.
First, a clarification of SYS 3 via the inyariance properties of Gauss' formula with respect to daU transformations was tried by inverse calculation from locally determined scale differences. This produ--ced the assumption of a twofold directional reduction of the observations of the second measuremen epoch; however, this hypothesis could not be confirmed.
An extended "tensorial" analysis of SYS 3 (see Chapter 6) produced results indicating a dependence on
schreiber's reference meridian (Berlin-Rauenberg, 13.4°). The corresponding correlation of SYS '
to the Royal Prussian Triangulation was confirmed by investigations in the test network "Sudharz".
Due to an additional model extension (extended coordinate correction), the final results were in agreement
with the results of the "Sudharz" test network.
The revealed errors required a general reexamination of the previous studies on the epoch comparison
"1900-1960". The newly developed correction models allowed to do this in spite of the access to thi
original calculation documents being denied. The following general assessment was obtained:
All "horizontal translation vectors" calculated by the former Kombinat Geodasie und Kartographie
contain several types of errors.
In addition to several gross errors of individual data, the following systematic errors have to be distinguished:
1. Systematic errors due to the calculation method used (fixed point method) (SYS 1)
2. Systematic errors due to the missing directional reduction of the first measurement epoch (SYS 2)
3. Systematic errors indicating a correlation between the observations of the first measurement epoch and schreiber's reference meridian (SYS 3)
As a result of reexamination, SYS 1 and SYS 2 were found in all network comparisons. The networl comparisons "Sachsen" (thurm et al. 1977) are distorted by both SYS 1 and SYS 2; therefore, they have t be completely corrected with respect to their qualitative result. SYS 3 was observed only in the network comparisons Siidharz-E, Zielitz, Altmark-E, and Altmark-W.
Modern test programs, in particular those for geodimeter networks, usually confirm the differences betweei the epochs "1900" and "1960". The reason for the differences, however, is usually localized in "1900" wher the point position determination was characterized by the relatively highest entropy of measurement am the poorest reliability. This reflection of technological progress further substantiates the presented assessment of the epoch comparison "1900 - 1960". The basic objective of the described investigation, i.e the study of recent horizontal crustal movements in areas with relatively little tectonic activity, remains a major challenge to geodesy.Numéro de notice : 28058 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Thèse étrangère Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=63405 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 28058-01 30.82 Livre Centre de documentation Géodésie Disponible 28058-02 30.82 Livre Centre de documentation Géodésie Disponible Kartographisches Taschenbuch 1994/1995 / J. Dodt (1994)
Titre : Kartographisches Taschenbuch 1994/1995 Titre original : [Livre de poche de cartographie 1994/1995] Type de document : Dictionnaire / Usuel Auteurs : J. Dodt, Auteur ; W. Herzog, Auteur Editeur : Bonn-Bad Godesberg : KirschBaum Année de publication : 1994 Importance : 366 p. Format : 12 x 17 cm ISBN/ISSN/EAN : 978-3-7812-1360-9 Note générale : Bibliographie Langues : Allemand (ger) Descripteur : [Vedettes matières IGN] Cartographie
[Termes IGN] AllemagneIndex. décimale : 39.00 Cartographie - généralités - Cartologie Numéro de notice : 63032 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Usuel Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=36339 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 63032-01 39.00 Livre Centre de documentation Cartographie Disponible
Titre : Struktur- und Funktionswandel im amtlichen Vermessungswesen Titre original : [Évolution des fonctions et des structures dans l'organisation officielle de la géodésie-topographie] Type de document : Thèse/HDR Auteurs : Viktor Eisele, Auteur Editeur : Munich : Bayerische Akademie der Wissenschaften Année de publication : 1994 Collection : DGK - C Sous-collection : Dissertationen num. 428 Importance : 154 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-3-7696-9471-0 Note générale : Bibliographie Langues : Allemand (ger) Descripteur : [Vedettes matières IGN] Cartographie étrangère
[Termes IGN] activité géodésique
[Termes IGN] Bade-Wurtemberg (Allemagne)
[Termes IGN] cartographie étrangère
[Termes IGN] dix-neuvième siècle
[Termes IGN] histoire de la cartographie
[Termes IGN] vingt-et-unième siècle
[Termes IGN] vingtième siècleNuméro de notice : 28060 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Thèse étrangère DOI : sans En ligne : https://www.ifp.uni-stuttgart.de/dokumente/Dissertationen/C428-Eisele.pdf Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=63407 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 28060-01 39.40 Livre Centre de documentation Cartographie Disponible 28060-02 39.40 Livre Centre de documentation Cartographie Disponible Comprendre, penser, construire la ville / Ministere de l'équipement, des transports et du logement (France) (1992)
Titre : Comprendre, penser, construire la ville : projet urbain, de l'intention à la réalisation, repères méthodologiques Type de document : Monographie Auteurs : Ministere de l'équipement, des transports et du logement (France), Auteur ; Direction de l'architecture et de l'urbanisme, Auteur Editeur : Paris : Direction de l'Architecture et de l'Urbanisme DAU Année de publication : 1992 Importance : 83 p. Format : 24 x 31 cm ISBN/ISSN/EAN : 978-2-11-082100-3 Langues : Français (fre) Descripteur : [Vedettes matières IGN] Urbanisme
[Termes IGN] Aix-en-Provence
[Termes IGN] aménagement urbain
[Termes IGN] architecture
[Termes IGN] croissance urbaine
[Termes IGN] Dunkerque (59)
[Termes IGN] Glasgow
[Termes IGN] Hambourg
[Termes IGN] Le Havre
[Termes IGN] Lyon
[Termes IGN] Nîmes
[Termes IGN] Paris (75)
[Termes IGN] plan d'occupation du sol
[Termes IGN] planification urbaine
[Termes IGN] Rennes
[Termes IGN] StrasbourgNuméro de notice : 61586 Affiliation des auteurs : non IGN Thématique : URBANISME Nature : Monographie Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=60957 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 61586-01 49.20 Livre Centre de documentation Aménagement - Urbanisme Disponible Untersuchungen verschiedener Höhensysteme, dargestellt an einer Testschleife in Rheinland-Pfalz / M. Leismann (1992)
Titre : Untersuchungen verschiedener Höhensysteme, dargestellt an einer Testschleife in Rheinland-Pfalz Titre original : [Études de différents systèmes d'altitudes, représentés par une boucle de test en Rhénanie-Palatinat] Type de document : Monographie Auteurs : M. Leismann, Auteur ; R. Klees, Auteur ; H. Beckers, Auteur Editeur : Munich : Bayerische Akademie der Wissenschaften Année de publication : 1992 Collection : DGK - B Sous-collection : Angewandte Geodäsie num. 296 Importance : 97 p. Format : 21 x 30 cm - cont. 7 planches ISBN/ISSN/EAN : 978-3-7696-8580-0 Note générale : Bibliographie Langues : Allemand (ger) Descripteur : [Vedettes matières IGN] Systèmes de référence et réseaux
[Termes IGN] altitude normale
[Termes IGN] hauteur ellipsoïdale
[Termes IGN] positionnement par GPS
[Termes IGN] Rhénanie-Palatinat (Allemagne)
[Termes IGN] système de référence altimétriqueIndex. décimale : 30.10 Systèmes de référence et réseaux géodésiques Résumé : (Auteur) This report deals with the examination of several height systems for practical and scientific purposes. It starts with a short introduction to the height problem including the formulation of a catalog of demands coming from science, administration, planning and economy. Section 2 contains some foundations about the gravity field of a level ellipsoid, the theoretical closing error that would be obtained by errorless levelling from a starting point, around a level circuit, and back to the starting point and methods for gravity reduc-tions. In section 3 the different height systems being part of our examination are defined. Besides the geo-potential numbers and the dynamic heights we especially consider the orthometric heights and their differ-ent realizations restricting ourselves to those systems which can be determined from levelling and gravity measurements only; for other orthometric heights like Niethammer, Mader and Mueller we summarize the most important facts taken from known publications. Besides, we consider several normal heights, the so called spheroidal-orthometric heights presently used in Germany and the ellipsoidal heights as the only strictly geometrically defined height system. In section 4 we describe the properties of the different height systems and compare them with the catalog of demands mentioned before. The numerical calculations presented in section 5 are based on a closed 420 km levelling line located in the southwestern part of Germany with heights between 60 m and 700 m.
The results show that none of the considered height systems meets all the requirements listed in section 1. That is why we propose the use of two systems; one for purposes placing the dynamic interpretation of heights in the foreground and the other to cover all the geometric tasks most important for piirely geodetic purposes and coming up from modern satellite techniques like NAVSTAR/GPS and inertial methods.
In our opinion, from all the examined height systems the normal heights of Molodensky are the best compro-mise for all users leading to the best compensation between all the requirements. This height system is in contrast to the presently used spheroidal-orthometric system path independent, i.e. independent of the levelling route. In relation to the geopotential numbers and the dynamic heights they have a geometric interpretation, i.e. they define the distance of a point on the earth's surface from the quasigeoid, a surface differing from the geoid by some few centimeters or decimeters; only in some high mountain regions differ-ences up to 2 meters are possible. Its main advantage is especially in comparison with orthometric heights - that it is free from any hypotheses about the variation of gravity within the earth's crust and the isostatic compensation depth so that the accuracy of normal heights depends only on the accuracy of the measured gravity values and the levelling. Compared with the orthometric heights they suffer from the fact that the quasigeoid is not an equipotential surface of the earth's gravity field making the understanding of the heights possibly difficult for some practitioners. The corrections being taken into account to transform the results of levelling into normal heights and normal height differences are comparable to those for orthome-tric heights but greater than the spheroidal-orthometric corrections. But, for most of the practitioners they are not so hard to accept as the very large dynamic corrections. A disadvantage compared with dynamic heights is the fact that surfaces of equal normal heights are not identical with equipotential surfaces of the earth's gravity field. But the differences are very small and have to be considered only in some special cases like hydrologic projects where sometimes high accuracies are required. For geodetic purposes the geometric interpretation of heights is placed in the foreground, particularly in view of the great progress in satellite geodesy especially satellite positioning techniques like NAVSTAR/GPS and inertia! methods so that three dimensional geodesy will become more and more important even for local applications. In that sense ellipsoidal heights should be used as the fundamental geometric height system and should be incorporated into existing geodetic data bases.Numéro de notice : 28219 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Monographie Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=63565 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 28219-01 30.10 Livre Centre de documentation Géodésie Disponible 28219-02 30.10 Livre Centre de documentation Géodésie Disponible German GIS/LIS standards / Werner Kuhn (1991)PermalinkRemote detection of canopy water stress in coniferous forests using the NS001 Thematic Mapper simulator and the thermal infrared multispectral scanner / L.L. Pierce in Photogrammetric Engineering & Remote Sensing, PERS, vol 56 n° 5 (may 1990)PermalinkDGK-Arbeitskreis für Rezente Krustenbewegungen / H. Malzer (1990)PermalinkGerman cartography / Delphine Sauban (1990)PermalinkHundert Jahre Trier in der topographischen Karte 1:25 000 / J. Bollmann (1990)PermalinkIntegrierte Ausgleichung geodätischer Netze im Massenpunktmodell / T. Muller (1990)PermalinkTestnetz der Technischen Hochschule Darmstadt, Teil 4 Prüfung der Messgerate von 1973 bis 1986 / H. Grosse (1990)PermalinkTestnetz der Technischen Hochschule Darmstadt. Teil 5, Auswertung des Testnetzes / G. Brunken (1990)PermalinkAugust Heinrich Petermann (1822 - 1878) - Ein Gothaer Geograph und Kartograph / Matthias Hoffmann in Annuaire international de cartographie, n° 29 (1989)PermalinkDas Hauptschwerenetz der Bundesrepublik Deutschland DHSN 1982 / Arbeitsgemeinschaft der Vermessungsverwaltung (1989)Permalink