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Building on firm foundations / Dominik Wesołowski in GEO: Geoconnexion international, vol 16 n° 9 (September 2017)

Public [article]  inGEO: Geoconnexion international > vol 16 n° 9 (September 2017) . - pp 44 - 46 Titre : Building on firm foundations Type de document : Article/Communication Auteurs : Dominik Wesołowski, Auteur Année de publication : 2017 Article en page(s) : pp 44 - 46 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques [Termes IGN] données lidar [Termes IGN] Pologne [Termes IGN] télémétrie laser aéroporté Résumé : (éditeur) The combination of planning rules and a countrywide project to prepare for floods mean that lidar is becoming increasing popular in Poland. Dominik Wesołowski explains how it can be used to generate the all-important documentation needed for building projects Numéro de notice : A2017-423 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=86319 [article]

Using Landsat time series for characterizing forest disturbance dynamics in the coupled human and natural systems of Central Europe / Cornelius Senf in ISPRS Journal of photogrammetry and remote sensing, vol 130 (August 2017)  

Public [article]  inISPRS Journal of photogrammetry and remote sensing > vol 130 (August 2017) . - pp 453 - 463 Titre : Using Landsat time series for characterizing forest disturbance dynamics in the coupled human and natural systems of Central Europe Type de document : Article/Communication Auteurs : Cornelius Senf, Auteur ; Dirk Pflugmacher, Auteur ; Patrick Hostert, Auteur ; Rupert Seidl, Auteur Année de publication : 2017 Article en page(s) : pp 453 - 463 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] aire protégée [Termes IGN] Allemagne [Termes IGN] analyse spatio-temporelle [Termes IGN] Autriche [Termes IGN] dynamique spatiale [Termes IGN] écosystème forestier [Termes IGN] Europe centrale [Termes IGN] gestion forestière [Termes IGN] habitat forestier [Termes IGN] image Landsat [Termes IGN] interaction homme-milieu [Termes IGN] milieu naturel [Termes IGN] parc naturel national [Termes IGN] placette d'échantillonnage [Termes IGN] Pologne [Termes IGN] République Tchèque [Termes IGN] série temporelle [Termes IGN] Slovaquie [Termes IGN] sylviculture Résumé : (Auteur) Remote sensing is a key information source for improving the spatiotemporal understanding of forest ecosystem dynamics. Yet, the mapping and attribution of forest change remains challenging, particularly in areas where a number of interacting disturbance agents simultaneously affect forest development. The forest ecosystems of Central Europe are coupled human and natural systems, with natural and human disturbances affecting forests both individually and in combination. To better understand the complex forest disturbance dynamics in such systems, we utilize 32-year Landsat time series to map forest disturbances in five sites across Austria, the Czech Republic, Germany, Poland, and Slovakia. All sites consisted of a National Park and the surrounding forests, reflecting three management zones of different levels of human influence (managed, protected, strictly protected). This allowed for a comparison of spectral, temporal, and spatial disturbance patterns across a gradient from natural to coupled human and natural disturbances. Disturbance maps achieved overall accuracies ranging from 81% to 93%. Disturbance patches were generally small, with 95% of the disturbances being smaller than 10 ha. Disturbance rates ranged from 0.29% yr−1 to 0.95% yr−1, and differed substantially among management zones and study sites. Natural disturbances in strictly protected areas were longer in duration (median of 8 years) and slightly less variable in magnitude compared to human-dominated disturbances in managed forests (median duration of 1 year). However, temporal dynamics between natural and human-dominated disturbances showed strong synchrony, suggesting that disturbance peaks are driven by natural events affecting managed and unmanaged areas simultaneously. Our study demonstrates the potential of remote sensing for mapping forest disturbances in coupled human and natural systems, such as the forests of Central Europe. Yet, we also highlight the complexity of such systems in terms of agent attribution, as many natural disturbances are modified by management responding to them outside protected areas. Numéro de notice : A2017-520 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2017.07.004 En ligne : https://doi.org/10.1016/j.isprsjprs.2017.07.004 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=86482 [article]

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Real-time precise point positioning augmented with high-resolution numerical weather prediction model / Karina Wilgan in GPS solutions, vol 21 n° 3 (July 2017)  

Public [article]  inGPS solutions > vol 21 n° 3 (July 2017) . - pp 1341 – 1353 Titre : Real-time precise point positioning augmented with high-resolution numerical weather prediction model Type de document : Article/Communication Auteurs : Karina Wilgan, Auteur ; Tomasz Hadas, Auteur ; Pawel Hordyniec, Auteur ; Jaroslaw Bosy, Auteur Année de publication : 2017 Article en page(s) : pp 1341 – 1353 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale [Termes IGN] analyse diachronique [Termes IGN] Pologne [Termes IGN] positionnement ponctuel précis [Termes IGN] prévision météorologique [Termes IGN] propagation troposphérique [Termes IGN] réseau permanent EUREF [Termes IGN] retard troposphérique [Termes IGN] retard troposphérique zénithal [Termes IGN] station GNSS [Termes IGN] temps réel Résumé : (auteur) The tropospheric delay is one of the major error sources in precise point positioning (PPP), affecting the accuracy and precision of estimated coordinates and convergence time, which raises demand for a reliable tropospheric model, suitable to support PPP. In this study, we investigate the impact of three tropospheric models and mapping functions regarding position accuracy and convergence time. We propose a routine to constrain the tropospheric estimates, which we implemented in the in-house developed real-time PPP software. We take advantage of the high spatial resolution (4 × 4 km2) numerical weather prediction Weather Research and Forecasting (WRF) model and near real-time GNSS data combined by the least-squares collocation estimation to reconstruct the tropospheric delays. We also present mapping functions calculated from the WRF model using the ray-tracing technique. The performance tests are conducted on 14 Polish EUREF Permanent Network (EPN) stations during 3 weeks of different tropospheric conditions: calm, standard and severe. We consider six GNSS data processing variants, including two commonly used variants using a priori ZTD and mapping functions from UNB3m and VMF1-FC models, one with a priori ZTD and mapping functions calculated directly from WRF model and three variants using the aforementioned mapping functions but with ZTD model based on GNSS and WRF data used as a priori troposphere and to constrain tropospheric estimates. The application of a high-resolution GNSS/WRF-based ZTD model and mapping functions results in the best agreement with the official EPN coordinates. In both static and kinematic modes, this approach results in an average reduction of 3D bias by 20 and 10 mm, respectively, but an increase of 3D SDs by 1.5 and 4 mm, respectively. The application of high-resolution tropospheric model also shortens the convergence time, for example, for a 10 cm convergence level, from 67 to 58 min for the horizontal components and from 79 to 63 min for the vertical component. Numéro de notice : A2017-444 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : 10.1007/s10291-017-0617-6 En ligne : https://doi.org/10.1007/s10291-017-0617-6 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=86368 [article]

Application of terrestrial laser scanning to the development and updating of the base map / Przemysław Klapa in Geodesy and cartography, vol 66 n° 1 (June 2017)  

Public [article]  inGeodesy and cartography > vol 66 n° 1 (June 2017) . - pp 59 - 72 Titre : Application of terrestrial laser scanning to the development and updating of the base map Type de document : Article/Communication Auteurs : Przemysław Klapa, Auteur ; Bartosz Mitka, Auteur Année de publication : 2017 Article en page(s) : pp 59 - 72 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie [Termes IGN] carte de base [Termes IGN] lasergrammétrie [Termes IGN] mise à jour cartographique [Termes IGN] Pologne Résumé : (auteur) The base map provides basic information about land to individuals, companies, developers, design engineers, organizations, and government agencies. Its contents include spatial location data for control network points, buildings, land lots, infrastructure facilities, and topographic features. As the primary map of the country, it must be developed in accordance with specific laws and regulations and be continuously updated. The base map is a data source used for the development and updating of derivative maps and other large scale cartographic materials such as thematic or topographic maps. Thanks to the advancement of science and technology, the quality of land surveys carried out by means of terrestrial laser scanning (TLS) matches that of traditional surveying methods in many respects. This paper discusses the potential application of output data from laser scanners (point clouds) to the development and updating of cartographic materials, taking Poland’s base map as an example. A few research sites were chosen to present the method and the process of conducting a TLS land survey: a fragment of a residential area, a street, the surroundings of buildings, and an undeveloped area. The entire map that was drawn as a result of the survey was checked by comparing it to a map obtained from PODGiK (pol. Powiatowy Ośrodek Dokumentacji Geodezyjnej i Kartograficznej – Regional Centre for Geodetic and Cartographic Records) and by conducting a field inspection. An accuracy and quality analysis of the conducted fieldwork and deskwork yielded very good results, which provide solid grounds for predicating that cartographic materials based on a TLS point cloud are a reliable source of information about land. The contents of the map that had been created with the use of the obtained point cloud were very accurately located in space (x, y, z). The conducted accuracy analysis and the inspection of the performed works showed that high quality is characteristic of TLS surveys. The accuracy of determining the location of the various map contents has been estimated at 0.02-0.03 m. The map was developed in conformity with the applicable laws and regulations as well as with best practice requirements. Numéro de notice : A2017-785 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1515/geocart-2017-0002 En ligne : https://doi.org/10.1515/geocart-2017-0002 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=89097 [article]

Cartographic analysis of transformations of the spatial structure of lands of Podgorze in Krakow in Poland in the period of 1847–2016 / Wojciech Przegon in Geodetski vestnik, vol 61 n° 2 (June - August 2017)  

Public [article]  inGeodetski vestnik > vol 61 n° 2 (June - August 2017) . - pp 278 - 292 Titre : Cartographic analysis of transformations of the spatial structure of lands of Podgorze in Krakow in Poland in the period of 1847–2016 Type de document : Article/Communication Auteurs : Wojciech Przegon, Auteur ; Stanisław Bacior, Auteur ; Katarzyna Sobolewska–Mikulska, Auteur Année de publication : 2017 Article en page(s) : pp 278 - 292 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale [Termes IGN] analyse comparative [Termes IGN] analyse diachronique [Termes IGN] cadastre ancien [Termes IGN] Cracovie (Pologne) [Termes IGN] parcelle cadastrale [Termes IGN] structure spatiale [Termes IGN] utilisation du sol Résumé : (Auteur) The first maps and studies in the field of land use were initiated in the United States as early as before World War I. Between the two world wars such studies were carried out with the main focus on regional planning. Planning process at all levels is usually based on rich statistical materials, which allows to compare the state of the space in different time periods. In the presented paper, the authors investigated transformations of the spatial structure of lands for a part of Podgórze, the district of Krakow for the period of the past 169 years. Source materials utilised for the research works and analyses included cadastral maps from the selected analysed years, i.e. 1847, 1909, 2003 and 2016. Based on the mentioned materials, the characteristics of land parcels as spatial features were analysed and changes were determined for the periods of 1847–1909, 1909–2003 and 2003–2016 showing the present situation. Computer processing of maps was performed for this purpose, and distributions and correlations between spatial variables characterizing parcel structure were analysed for the study area. Numéro de notice : A2017-371 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.15292/geodetski-vestnik.2017.02.278-292 En ligne : http://dx.doi.org/10.15292/geodetski-vestnik.2017.02.278-292 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=85796 [article]

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Geovisualisation as a process of creating complementary visualisations: static two-dimensional, surface three-dimensional, and interactive / Tymoteusz Horbiński in Geodesy and cartography, vol 66 n° 1 (June 2017)  

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Integrated precipitable water from GPS observations and cimel sunphotometer measurements at CGO Belsk / Michal Kruczyk in Reports on geodesy and geoinformatics, vol 103 n° 1 (June 2017)  

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The differentiation of point symbols using selected visual variables in the mobile augmented reality system / Łukasz Halik in Cartographic journal (the), Vol 54 n° 2 (May 2017)  

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Derivation and validation of the high resolution satellite soil moisture products: a case study of the Biebrza Sentinel-1 validation sites / Jan Musiał in Geoinformation issues, Vol 8 n° 1 (2016)    

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Redistribution population data across a regular spatial grid according to buildings characteristics / Beata Calka in Geodesy and cartography, vol 65 n° 2 (December 2016)  

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Verification of the polish geodetic reference frame by means of a new solution based on permanent GNSS data from the years 2011-2014 / Tomasz Liwosz in Reports on geodesy and geoinformatics, vol 102 n° 1 (December 2016)  

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Geometric accuracy of topographical objects at Polish topographic maps / Radzym Lawniczack in Geodesy and cartography, vol 65 n° 1 (June 2016)  

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Newly recorded Neolithic earthen long barrows in south-western Poland: unexpected discoveries, expanded perspectives, new interprétations / Agnieszka Przybył in Préhistoires méditerranéennes, n° spécial (2014)  

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On the use of IT investment assessment methods in the area of spatial data infrastructure / Agnieszka Zwirowicz-Rutkowska in Geodesy and cartography, vol 65 n° 1 (June 2016)  

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The current state of the creation and modernization of national geodetic and cartographic resources in Poland / Adam Doskocz in Open geosciences, vol 8 n° 1 (January - July 2016)  

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