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Mean monthly series of sea level observations (1777-1993) at the Kronstadt gauge / V. Bogdanov (2000)
Titre : Mean monthly series of sea level observations (1777-1993) at the Kronstadt gauge Type de document : Rapport Auteurs : V. Bogdanov, Auteur ; M. Medvedev, Auteur ; V. Solodov, Auteur ; et al., Auteur Editeur : Helsinki : Finnish Geodetic Institute FGI Année de publication : 2000 Collection : Reports of the Finnish Geodetic Institute num. 2000- Importance : 34 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-951-711-237-6 Note générale : Bibliographie
note : no de collection = 2000-1Langues : Anglais (eng) Descripteur : [Termes IGN] dix-huitième siècle
[Termes IGN] dix-neuvième siècle
[Termes IGN] données marégraphiques
[Termes IGN] Saint-Petersbourg
[Termes IGN] série temporelle
[Termes IGN] vingtième siècle
[Vedettes matières IGN] AltimétrieRésumé : (Auteur) The versions of mean monthly (MMSL) and mean annual (MYSL) sea level observation series for 1777-1993 at the Kronstadt gauge and for 1989-1993 at its Shepelevo duplicate (Baltic Sea, Gulf of Finland, Isle of Kotlin, Russia) are submitted for the first time. The archival, fund and published materials of the State Hydrographical Service of the Navy, State Hydrometeorological Service, State Geodetic Service, Russian Academy of Sciences are used. The Kronstadt gauge is the oldest sea level station of Russia, which zero point is accepted as the Initial Point of the State Levelling Network and the Origin of National (“Baltic”) System of Heights. The basic information about the tide gauges, sea level observations, datum level, geodetic control and methods of restoration of long-term series is given. Some results and prospects of the further works are discussed. Note de contenu : 1 Introduction
2 Brief historical information on the sea level observations in the region
3 Basic knowledge of the Kronstadt and Shepelevo gauges and peculiarities of secular series restoration methods
4 Description of mean monthly series (1777-1993) at the Kronstadt gauge
5 Description of mean monthly series (1988-1993) at the Shepelevo duplicate of the Kronstadt gauge
6 Brief characteristic of sea level series
7 ConclusionNuméro de notice : 14651 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Rapport Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=40591 Final results of the Baltic Sea level 1997 GPS campaign / Markku Poutanen (1999)
Titre : Final results of the Baltic Sea level 1997 GPS campaign : research works of the SSG 8.1 of the International Association of Geodesy Type de document : Rapport Auteurs : Markku Poutanen, Éditeur scientifique ; J. Kakkuri, Éditeur scientifique Editeur : Helsinki : Finnish Geodetic Institute FGI Année de publication : 1999 Collection : Reports of the Finnish Geodetic Institute num. 99-4 Importance : 182 p. Format : 21 x 30 cm Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] Baltique, mer
[Termes IGN] niveau moyen des mers
[Termes IGN] nivellement par GPS
[Termes IGN] réseau altimétrique local
[Termes IGN] traitement de données GNSSIndex. décimale : 30.50 Nivellement - généralités Numéro de notice : 53893 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Recueil / ouvrage collectif Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=43435 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 53893-01 30.50 Livre Centre de documentation Géodésie Disponible Kyviskes calibration baseline / Jorma Jokela (1999)
Titre : Kyviskes calibration baseline Type de document : Rapport Auteurs : Jorma Jokela, Auteur ; P. Petroskevicius, Auteur ; V. Tulevicius, Auteur Editeur : Helsinki : Finnish Geodetic Institute FGI Année de publication : 1999 Collection : Reports of the Finnish Geodetic Institute num. 99-3 Importance : 15 p. Format : 21 x 30 cm Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Triangulation
[Termes IGN] base d'étalonnage
[Termes IGN] calibrageIndex. décimale : 30.32 Travaux de triangulation Numéro de notice : 54757 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Monographie Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=59694 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 54757-01 30.32 Livre Centre de documentation En réserve M-103 Disponible Map generalisation in the nordic countries / T. Kilpelainen (1999)
Titre : Map generalisation in the nordic countries Type de document : Rapport Auteurs : T. Kilpelainen, Auteur Editeur : Helsinki : Finnish Geodetic Institute FGI Année de publication : 1999 Collection : Reports of the Finnish Geodetic Institute num. 99-6 Importance : 58 p. Format : 21 x 29 cm Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] Danemark
[Termes IGN] détail topographique
[Termes IGN] Finlande
[Termes IGN] généralisation cartographique
[Termes IGN] Islande
[Termes IGN] Norvège
[Termes IGN] Suède
[Termes IGN] système d'information géographique
[Vedettes matières IGN] GénéralisationNuméro de notice : 69555 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Rapport Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=44827 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 69555-01 39.20 Livre Centre de documentation En réserve M-103 Disponible Orientation of optical airborne and spaceborne images for small and medium scale mapping purposes / Eija Honkavaara (1999)
Titre : Orientation of optical airborne and spaceborne images for small and medium scale mapping purposes Type de document : Rapport Auteurs : Eija Honkavaara, Auteur ; Mirjam Bilker, Auteur ; X. Yu, Auteur ; Juha Jaakkola, Auteur ; Harri Kaartinen, Auteur ; J. Ylonen, Auteur Editeur : Helsinki : Finnish Geodetic Institute FGI Année de publication : 1999 Collection : Reports of the Finnish Geodetic Institute num. 99-5 Importance : 57 p. Format : 21 x 30 cm Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique
[Termes IGN] aérotriangulation
[Termes IGN] image aérienne
[Termes IGN] image JERS
[Termes IGN] image optique
[Termes IGN] image spatiale
[Termes IGN] orientation d'image
[Termes IGN] orientation du capteur
[Termes IGN] photographie à moyenne échelle
[Termes IGN] photographie à petite échelle
[Termes IGN] point d'appui
[Termes IGN] point de vérification
[Termes IGN] points homologuesIndex. décimale : 33.30 Photogrammétrie numérique Résumé : (Auteur) Recent technical progress has resulted in significant improvement of the orientation process. The most revolutionary developments include automation of tie point measurement and direct determination of orientation parameters with GPS and INS techniques. Options to be taken into account when selecting materials for mapping and methods for orientation include image type (scale; standard frame, digital camera; spaceborne, airborne), block geometry (single image orientation, aerial triangulation (AT)), ground control (targeted, untargeted, GIS data, etc.), image observations (automatic, interactive) and utilisation of directly measured orientation parameters. The task is to optimise costs, accuracy and reliability.
These questions have been investigated at the Finnish Geodetic Institute (FGI) for medium and small scale mapping applications with spatial resolution and accuracy requirements for 15 m. Both theoretical and empirical considerations have been made with respect to several variables: observations of orientation parameters (GPS, no GPS, GPS processing), block structure (cross strips, no cross strips; single image, block), ground control points (GCPs, targeted, untargeted and GIS data: nationwide digital orthophotos, base maps and elevation models), image observations of tie points and GCPs (interactive, automatic) and image material (1:31 000 and 1:60 000 standard airborne images with approximately 1 m and 5 m pixel sizes; JERS/VNIR satellite images). All the airborne cases were analysed using the same strategies and checkpoints. JERSIVNIR images were analysed in parallel with the airborne images, but no comprehensive comparisons between the materials could be made because of large resolution differences.
The results of GPS measurements of perspective centres showed offsets and linear drifts varying from strip to strip, but compensation in AT with minimum ground control was possible. Targeted GCPs yielded high accuracy and reliability. Untargeted GCPs and GIS data as ground control, especially digital orthophotos and DEM25, also yielded good accuracy, although care is needed to avoid problems with gross errors. With GIS data, systematic errors can also be expected. The empirical and simulation results obtained make it possible to select GCP materials for obtaining various accuracy levels in the cases of spatial resection and AT with or without GPS support. It was concluded that in block adjustment, a planimetric accuracy of 10 gm in the image and a height accuracy of 0.1%oH can be obtained by using a reasonable number of GCPs (e.g. in 4 base distances) with accuracy better than 20 µm in image. Several examples of suitable GCP materials and configurations for obtaining accuracy better than 1 m were given. High accuracy was obtained with automatic tie point measurement, but investigations are still needed concerning optimal adjustment methods and number of points. The results, however, were in any case sufficient for applications with medium quality requirements. Experiences of orientation of JERS/VNIR images with rigorous methods were good; accuracy of 0.4 pixels was obtained with only 4 GCPs. In all the cases, the results of empirical and theoretical investigations correlated as long as the assumptions were valid; therefore reliable knowledge of the quality of the materials used as the basis for orientation is an important presupposition.Numéro de notice : 67564 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Rapport Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=44680 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 67564-01 33.30 Livre Centre de documentation Photogrammétrie - Lasergrammétrie Disponible Quality of FLPIS land parcel digitization / Harri Kaartinen (1999)PermalinkQuality of FLPIS orthophotos / Eija Honkavaara (1999)PermalinkAn early crop yield estimation method for Finnish conditions / Risto Kuittinen (1998)PermalinkGravity measurements of Estonia / H. Sildvee (1998)PermalinkOn superconducting gravimeter observations above 8 MHz at the Metsahovi station, Finland / H. Virtanen (1998)PermalinkSAR images and ancillary data in crop species interpretation / Leena Matikainen (1998)PermalinkSecond continental workshop on the geoid in Europe, Budapest (Hongary), March 10-14, 1998 : Proceedings / Martin Vermeer (1998)PermalinkAutomated calibration of precise levelling rods in Finland / M. Takalo (1997)PermalinkGeoid determination by FFT techniques in the western China test area / Martin Vermeer (1997)PermalinkProceedings of the Finnish-Russian seminar on remote sensing / Risto Kuittinen (1997)PermalinkThe GWR T020 superconducting gravimeter 1994-1996 at the Metsahovi station, Finland / H. Virtanen (1997)PermalinkUpdating topographic maps by using multisource data and knowledge-based interpretation / Leena Matikainen (1997)PermalinkActive fault line search in southern and central Finland with precise levellings / P. Lehmuskoski (1996)PermalinkDetermining the GPS orbit with the dynamic collocation model / L. Quanwei (1996)PermalinkGravity field mapping from a combination of satellite altimetry and sea gravimetry in the Mediterranean Sea / D. Arabelos (1996)PermalinkTechniques for local geoid determination / I.N. Tziavos (1996)PermalinkCoordinate systems, GPS and the geoid / Martin Vermeer (1995)PermalinkFinal results of the Baltic Sea level 1993 GPS campaign / J. Kakkuri (1995)PermalinkGPS measurements at the Nuottavaara post glacial fault / Markku Poutanen (1995)PermalinkLatest developments in the computation of regional Geoids / Martin Vermeer (1995)PermalinkOn the formalization of the semantics of spatial objects / H. Kemppainen (1995)PermalinkThe installation of and first results from the superconducting gravimeter GWR20 at the Metsahovi station, Finland / H. Virtanen (1995)PermalinkTwo new geoids determined at the FGI / Martin Vermeer (1995)PermalinkA fast delivery GPS-gravimetric geoid for Estonia / Martin Vermeer (1994)PermalinkFinal results of the Baltic Sea level 1990 GPS campaign / J. Kakkuri (1994)PermalinkFinnish corine land cover - a feasibility study of automatic generalization and data quality assessment / Olli Jaakkola (1994)PermalinkOn the persistence of the oceanic background of apparent sea level changes in the Baltic Sea / V.I. Bogdanov (1994)PermalinkThe program for the 1993 adjustment of the Finnish first-order terrestrial triangulation / Jorma Jokela (1994)PermalinkKinematic GPS in aerotriangulation in Finland / A. Hogholen (1993)PermalinkLatvian geoid determination with mass point frequency domain inversion / K. Kukums (1993)PermalinkThe behaviour of the Wild N3 levelling instrument under varying temperature conditions / P. Lehmuskoski (1993)PermalinkThe effect of the spatial resolution of the satellite image on the object interpretation accuracy / Risto Kuittinen (1993)PermalinkThe gravity and GPS survey in western Queen Maud Land Antarctica, 1989-1992 / Jorma Jokela (1993)PermalinkThe radiometric errors of preprocessed Landsat TM images and their effect on the accuracy of numerical interpretation / Y. Xiaowei (1993)PermalinkVertical movements of the Earth's crust in the baltic region / J. Randjarv (1993)PermalinkFGI studies on satellite gravity gradiometry, 3. 3 Regional high resolution geopotential recovery in geographical coordinates using a Taylor expansion FFT technique / Martin Vermeer (1992)PermalinkGeodetic observations on the Pasmajarvi postglacial fault / Aimo Kiviniemi (1992)PermalinkProcessing of the 1991 GPS campaigns in central Finland for crustal deformation studies / R. Chen (1992)PermalinkFormalization of cartographic knowledge using an expert system shell / M. Laurema (1991)PermalinkGravity field mapping over the Southeast Asian region using spaceborne gravimetry techniques / A. Kadir (1991)PermalinkOn the horizontal crustal deformations in Finland / R. Chen (1991)PermalinkThe use of MTF as a criterion of image quality for aerial cameras / J. Hakkarainen (1991)PermalinkFGI studies on satellite gravity gradiometry, 2. 2 Geopotential recovery at 0.5-degree resolution from global satellite gradiometry data sets / Martin Vermeer (1990)PermalinkMethods for regional gravity field modelling from SST and SGG data / C.C. Tscherning (1990)PermalinkThe influence of temperature variations on the photo coordinates in an analytical plotter / A. Hogholen (1990)PermalinkThe Jarmijarvi calibration baseline / R. Konttinen (1990)PermalinkFGI studies on satellite gravity gradiometry, 1. 1 Experiments with a 5-degree buried masses grid representation / Martin Vermeer (1989)PermalinkBaseline multiplication using the Kern mekometer ME 3000 / R. Konttinen (1988)PermalinkPlate tectonics at the joint of Pamirs and Tien-Shan in central Asia / R. Chen (1988)PermalinkQuality testing of system cameras / Janne Raty (1988)PermalinkResults of the Finnish - Polish Doppler Observation Campaign (FINPOLDOC) / W. Jaks (1988)PermalinkThe dependence of gradients of modern movements of the earth crust on space scale in Finland / V. Pisarenko (1988)PermalinkAstro-geodetic deflections of the vertical at first-order triangulation stations / Markku Ollikainen (1987)PermalinkIntegrated 3D-adjustment of the SW Finland test net with the FAF Munich Opera 2.3 software / Günter W. Hein (1987)PermalinkModelling vertical refraction in the SW Finland triangular network tagnet 3D adjustment / Erik W. Grafarend (1987)PermalinkResults of the Finnish - Hungarian Doppler Observation Campaign (FHDOC) / A. Czobor (1987)PermalinkDetermination of the local gravity field by calculations and measurements / C. Elstner (1986)PermalinkThe Fennoscandian land uplift gravity lines 1966-1984 / J. Makinen (1986)PermalinkHorizontal-vertical laser rod comparator / M. Takalo (1985)PermalinkThe study of land uplift using the third precise levelling of Finland / J. Kakkuri (1985)PermalinkBaseline measurements with invar wires in Finland in 1958-1970 / J. Kaariainen (1984)PermalinkGeoid studies on Finland and the Baltic / Martin Vermeer (1984)PermalinkInfluence of the earth magnetic field on Zeiss NI002 levels / T.J. Kukkamaki (1984)PermalinkThe interstation distance Metsahovi - Potsdam based on satellite measurements / H. Montag (1984)PermalinkChronometric levelling / Martin Vermeer (1983)PermalinkRadial and tangential distortion of aerial cameras / J. Hakkarainen (1983)PermalinkRecomputation of land uplift value in Finland / O. Suutarinen (1983)PermalinkPhotogrammetric height determination of gravity points / Juha Jaakkola (1982)PermalinkStudies on the Metsahovi satellite laser ranging system / M. Paunonen (1982)PermalinkA technical report of the photographic astrolabe of Turku observatory / A. Niemi (1982)PermalinkEffect of some flight factors on image quality / J. Hakkarainen (1981)PermalinkSolving the shape of the earth by using digital density models / M. Heikkinen (1981)PermalinkHigh precision geodetic length measurements, Proceedings of the IAG Symposium, June 19 - 22, 1978, Helsinki, Finland / T. Parm (1980)PermalinkPermalinkOn the analysis of the return pulse of the satellite laser / O. Ojanen (1979)PermalinkComputing astronomical refraction by means of continued fractions / S. Mikkola (1978)PermalinkImage evaluation of aerial cameras in Finland / J. Hakkarainen (1978)PermalinkMeasuring method for the third levelling of Finland / M. Takalo (1978)PermalinkOn the determination of the scale of the Finnish stellar triangulation net / T. Parm (1978)PermalinkExperimental performance of the Metsahovi laser radar receiver / A.B. Sharma (1977)PermalinkAn automatically operated weather station / J. Kakkuri (1976)PermalinkLunette de Galilée pour contrôle du faisceau laser / L. Oterma (1976)PermalinkStellar triangulation points / R. Konttinen (1976)PermalinkA theorical analysis of optical receivers used in satellite ranging / A.B. Sharma (1976)PermalinkAn integrating, centroid timing, receiver for satellite ranging / A.B. Sharma (1975)PermalinkA high power Q-switched ruby laser for satellite laser ranging / M. Paunonen (1975)PermalinkThe laser rod comparator / M. Takalo (1974)PermalinkTime keeping methods applied in Finland / K. Kalliomaki (1974)PermalinkA determination of the velocity of light using laser geodimeter / T. Parm (1973)Permalink