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Persistent scatterers at building facades – Evaluation of appearance and localization accuracy / Stefan Gernhardt in ISPRS Journal of photogrammetry and remote sensing, vol 100 (February 2015)
[article]
Titre : Persistent scatterers at building facades – Evaluation of appearance and localization accuracy Type de document : Article/Communication Auteurs : Stefan Gernhardt, Auteur ; Stefan Auer, Auteur ; Konrad Eder, Auteur Année de publication : 2015 Article en page(s) : pp 92 - 105 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications
[Termes IGN] coin réflecteur
[Termes IGN] estimation de position
[Termes IGN] façade
[Termes IGN] image optique
[Termes IGN] image radar moirée
[Termes IGN] modèle 3D de l'espace urbain
[Termes IGN] modélisation 3D
[Termes IGN] Munich
[Termes IGN] photogrammétrie architecturale
[Termes IGN] photogrammétrie terrestreRésumé : (auteur) Thanks to the high resolution of modern SAR satellites many persistent scatterers (PS) appear at single buildings. Approximately half of them represent building facades. These groups of points often show regular patterns in SAR images that can be related to repeating structure elements on the facades. Hence, individual buildings can now be monitored over time, either based on amplitude (for change detection) or phase information (using interferometric methods). However, patterns of point signatures are often disrupted or disappear when the imaging geometry is slightly changed. In addition, the localization accuracy of estimated and geocoded natural PS is not known, yet. The investigation at hand provides a detailed analysis of PS patterns based on reference data obtained from a photogrammetric survey and terrestrial measurements. The processing of the optical images allows creating a detailed 3D model of the respective facade, which represents the geometrical object information for SAR simulation. The terrestrial measurements allow relating the 3D model to its true position in a world coordinate system like UTM (Universal Transverse Mercator), which is necessary for assessing the localization accuracy of the signatures. From the simulation results the appearance of the point patterns of natural PS in high resolution SAR data can be better understood. Moreover, the localization accuracy and the precision for these points can be derived for the first time. The approach and findings for two case studies in Munich are described in detail in this paper. Numéro de notice : A2015-056 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2014.05.014 En ligne : https://doi.org/10.1016/j.isprsjprs.2014.05.014 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=75300
in ISPRS Journal of photogrammetry and remote sensing > vol 100 (February 2015) . - pp 92 - 105[article]Réservation
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Titre : Baumarten‐Atlas zur dritten Bundeswaldinventur (BWI 2012) Titre original : Tree Species Atlas of the Third National Forest Inventory (BWI 2012) Type de document : Rapport Auteurs : Franz Kroiher, Auteur ; Friedrich Schmitz, Auteur Editeur : Braunschweig [Allemagne] : Thünen Institute Année de publication : 2015 Collection : Thünen working paper num. 49 Importance : 44 p. Format : 21 x 30 cm Langues : Allemand (ger) Descripteur : [Termes IGN] aire naturelle (écologie)
[Termes IGN] Allemagne
[Termes IGN] arbre (flore)
[Termes IGN] espèce pionnière
[Termes IGN] inventaire forestier étranger (données)
[Vedettes matières IGN] Inventaire forestierRésumé : (auteur) The National Forest Inventory (BWI) records the forest conditions in Germany in a systematic sample inventory on the basis of a 4 km x 4 km reference grid with regional grid refinements. The BWI distinguishes a total of 51 tree species or tree species groups. This tree atlas informs about the distribution and the ecological relevance of the 31 most important tree species in Germany in the natural forest community of a sample point. It separately outlines the categories of pioneer tree species, accessory or mandatory climax tree species or tree species outside the natural distribution area. The categorization is, for instance, the basis for determining the naturalness of the tree species composition1 in the BWI. Numéro de notice : 17104 Affiliation des auteurs : non IGN Thématique : FORET Nature : Rapport Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=79869 Documents numériques
en open access
Tree Species Atlas of the Third National Forest InventoryAdobe Acrobat PDF Jonctions effectuées en 2015 entre les réseaux de nivellement français et allemand / Alain Coulomb (2015)
Titre : Jonctions effectuées en 2015 entre les réseaux de nivellement français et allemand Type de document : Rapport Auteurs : Alain Coulomb , Auteur Mention d'édition : Version 1 Editeur : Paris : Institut Géographique National - IGN (1940-2007) Année de publication : 2015 Collection : Publications techniques en géodésie Sous-collection : Rapports techniques num. 28561 Importance : 34 p. Format : 21 x 30 cm Langues : Français (fre) Descripteur : [Vedettes matières IGN] Systèmes de référence et réseaux
[Termes IGN] Allemagne
[Termes IGN] DHHN92
[Termes IGN] entretien du réseau
[Termes IGN] France (administrative)
[Termes IGN] frontière
[Termes IGN] NGF-IGN69
[Termes IGN] réseau altimétrique national
[Termes IGN] tripletRésumé : (auteur) Ce document fait le bilan des jonctions de nivellement faites en 2015, dans le cadre des travaux ERNIT, entre le réseau français NGF/IGN69 et son homologue allemand. Note de contenu : 1. Avant-propos
2. Contexte
3. Résultats obtenus
4. Bilan et conclusionsNuméro de notice : 19721 Affiliation des auteurs : IGN (2012-2019) Thématique : POSITIONNEMENT Nature : Rapport de mission Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=84048 Exemplaires(1)
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Jonctions effectuées en 2015 entre les réseaux de nivellement français et allemandAdobe Acrobat PDF The Forests in Germany / Federal ministry of food and agriculture = Bundesministerium für Ernährung und Landwirtschaft (Berlin, Allemagne) (2015)
Titre : The Forests in Germany : selected results of the third national forest inventory Type de document : Rapport Auteurs : Federal ministry of food and agriculture = Bundesministerium für Ernährung und Landwirtschaft (Berlin, Allemagne), Auteur ; Christian Schmidt, Préfacier, etc. Editeur : Berlin : Federal ministry of food and agriculture BMEL Année de publication : 2015 Importance : 54 p. Format : 21 x 30 cm Note générale : Glossaire Langues : Anglais (eng) Descripteur : [Termes IGN] Allemagne
[Termes IGN] biotope
[Termes IGN] changement climatique
[Termes IGN] espèce exotique envahissante
[Termes IGN] Fagus (genre)
[Termes IGN] forêt
[Termes IGN] habitat forestier
[Termes IGN] Picea abies
[Termes IGN] Pinus (genre)
[Termes IGN] Quercus (genre)
[Termes IGN] structure d'un peuplement forestier
[Termes IGN] surveillance forestière
[Vedettes matières IGN] Ecologie forestièreRésumé : (Editeur) [Introduction] The forest possesses many talents. It is a home for animals and plants, an important climate protector and contains a wealth of biological diversity. For us, it is also an important supplier of raw materials. We need timber to build houses and furniture, for the production of energy and for the paper on which this booklet is printed. The forest is, however, also a place of peace and quiet that offers us refuge and recreation in our hectic, fast-paced world. Therefore, the forest is indispensable for all of our lives. One third of Germany is forested over 11.4 million hectares. The Third National Forest Inventory (NFI) provides good news: Our forest area has remained unchanged. More timber is re-growing than we use. We also have more of it than any other country in the European Union. In spite of high use, our forest stocks rose to 3.7 billion cubic metres. The appearance of German forests is characterized by 90 billion old and young spruces, pines, beeches, oaks and other tree species. The percentage of deciduous trees has risen. The forests have become more diverse and natural in structure. We find more deadwood in them – an important foundation for biodiversity. The good condition of our forests is the consequence of the silvicultural actions of many forest owners and foresters and the result of a forestry policy based on balance and sustainability that distributes the responsibilities on many shoulders: roughly half of German forests are privately owned. One fifth of them are owned by municipalities, cities and other public entities. One third belong to the Länder and the Federal government. But the National Forest Inventory also indicates the need for action. One example is the spruce: the NFI confirms that the spruce – an important supplier of raw material for the timber industry – is in decline. We must therefore talk about how much spruce forest we need and what alternatives there are to the spruce in the face of climate change. The forest should be used in the best possible way without overtaxing it. To make sure of this, the Federal government devised the Forest Strategy 2020. Its objective is to express and harmonize our diverse demands on the forest. This is the only way to maintain our chances for having intact forests for future generations as well. That is why my maxim is “Our forests: utilize and preserve.” The aim of this booklet is to generate understanding for the forest, forest owners and foresters. It provides citizens with the opportunity to get to know the functions of the forest and appreciate its value. Hence, the booklet is a contribution to sustainable forest management. Note de contenu : 1. Germany, the land of forests – forest area unchanged
- The forests – mainly privately owned
- Varying forest abundance in the Länder
2. The forest habitat – more biological diversity in the forest
- Spruce, pine, beech, oak – the most common tree species
- Forest damage led to rethinking – climate change faces us with new challenges
- Increase in older forests
- Rise in numbers of deciduous trees
- Forests more diversely structured
- Naturalness of tree species composition is somewhat improved
- More deadwood found than ten years ago
- Specially protected biotopes on five percent of the forest area
- Invasive plants in the forest are currently of little significance
- Biotope trees – stepping stones for biological diversity
- Conservation status of large-area forest habitat types protected under the Fauna-Flora-Habitats Directive
3. The forest resources – timber stock at record high
- Stock rose again
- Rise in stock primarily among large-girth trees
- The special case of spruce – stock decreased
- Timber increment at a high level
- Timber use at a high level
- Growth greater than use
- Timber use increasingly restricted or suspended
4. The forests as climate protectors – still a carbon sink
5. Surveying the forest
- Open during inventory – the inventory procedure
- National Forest Inventory – established information basisNuméro de notice : 22453 Affiliation des auteurs : non IGN Thématique : BIODIVERSITE/FORET Nature : Rapport Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=79981 Documents numériques
en open access
22453-Forests_in_Germany-BWI.pdfAdobe Acrobat PDF 1914-1918 : les cartes à l'épreuve de la guerre / Guillaume Lebailly in Carto, le monde en cartes, n° 25 (septembre - octobre 2014)
[article]
Titre : 1914-1918 : les cartes à l'épreuve de la guerre Type de document : Article/Communication Auteurs : Guillaume Lebailly, Auteur Année de publication : 2014 Langues : Français (fre) Descripteur : [Vedettes matières IGN] Cartographie
[Termes IGN] Allemagne
[Termes IGN] carte topographique
[Termes IGN] France (administrative)
[Termes IGN] guerre
[Termes IGN] vingtième siècleRésumé : (éditeur) À l'heure des commémorations du centenaire de la Grande Guerre et pour comprendre cette période clé, il semble indispensable de s'interroger sur la manière dont les soldats ont utilisé les cartes pour s'orienter et combattre. En comparant les exemples français et allemand, on perçoit l'importance de la cartographie et de son évolution pour toujours mieux répondre aux exigences militaires. Numéro de notice : A2014-725 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=75686
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