Centre dedocumentation
scientifique

The impact of drought on total ozone flux in a mountain Norway spruce forest / Thomas Agyei in Journal of forest science, vol 66 n° 7 (juillet 2020)  

Public [article]  inJournal of forest science > vol 66 n° 7 (juillet 2020) . - pp 280 - 287 Titre : The impact of drought on total ozone flux in a mountain Norway spruce forest Type de document : Article/Communication Auteurs : Thomas Agyei, Auteur ; Stanislav Juráň, Auteur ; Kojo Kwakye Ofori-Amanfo, Auteur ; et al., Auteur Année de publication : 2020 Article en page(s) : pp 280 - 287 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes descripteurs IGN] covariance [Termes descripteurs IGN] dioxyde de carbone [Termes descripteurs IGN] écosystème forestier [Termes descripteurs IGN] montagne [Termes descripteurs IGN] ozone [Termes descripteurs IGN] photosynthèse [Termes descripteurs IGN] Picea abies [Termes descripteurs IGN] République Tchèque [Termes descripteurs IGN] sécheresse [Termes descripteurs IGN] teneur en vapeur d'eau [Vedettes matières IGN] Végétation et changement climatique Résumé : (auteur) In order to understand the impact of summer drought on dry deposition of tropospheric ozone (O3), we compared severe and mild drought periods of summer 2018 in a mountain Norway spruce forest at Bílý Kříž, Beskydy Mts. An eddy covariance technique was applied to measure diurnal courses of the ecosystem O3 and CO2 fluxes. Low O3 deposition was recorded in the morning and evening, while the highest CO2 and O3 fluxes were recorded during the central hours of the day. Total O3 deposition during severe drought (soil humidity 13%) was significantly higher than the deposition during the mild drought period (soil humidity 19%). Our data indicate that high vapour pressure deficit and low soil humidity during severe drought led to the stomatal closure, while non-stomatal O3 deposition, associated with chemical reactions of O3 with NO and volatile organic compounds, are responsible for higher total O3 deposition during the severe drought period. Therefore, we assume that under severe drought stomatal O3 uptake decreases but non-stomatal depositions to forest ecosystems substantially increase. Numéro de notice : A2020-628 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.17221/129/2019-JFS En ligne : https://doi.org/10.17221/129/2019-JFS Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=96032 [article]

An original method for tree species classification using multitemporal multispectral and hyperspectral satellite data / Olga Grigorieva in Silva fennica, vol 54 n° 2 (2020)  

Public [article]  inSilva fennica > vol 54 n° 2 (2020) Titre : An original method for tree species classification using multitemporal multispectral and hyperspectral satellite data Type de document : Article/Communication Auteurs : Olga Grigorieva, Auteur ; Olga Brovkina, Auteur ; Alisher Saidov, Auteur Année de publication : 2020 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes descripteurs IGN] Betula (genre) [Termes descripteurs IGN] carte forestière [Termes descripteurs IGN] classification [Termes descripteurs IGN] erreur de classification [Termes descripteurs IGN] image hyperspectrale [Termes descripteurs IGN] image Landsat-OLI [Termes descripteurs IGN] image multibande [Termes descripteurs IGN] phénologie [Termes descripteurs IGN] Pinus (genre) [Termes descripteurs IGN] réflectance spectrale [Termes descripteurs IGN] République Tchèque [Termes descripteurs IGN] Russie [Termes descripteurs IGN] signature spectrale [Termes descripteurs IGN] variation saisonnière Résumé : (auteur) his study proposes an original method for tree species classification by satellite remote sensing. The method uses multitemporal multispectral (Landsat OLI) and hyperspectral (Resurs-P) data acquired from determined vegetation periods. The method is based on an original database of spectral features taking into account seasonal variations of tree species spectra. Changes in the spectral signatures of forest classes are analyzed and new spectral–temporal features are created for the classification. Study sites are located in the Czech Republic and northwest (NW) Russia. The differences in spectral reflectance between tree species are shown as statistically significant in the sub-seasons of spring, first half of summer, and main autumn for both study sites. Most of the errors are related to the classification of deciduous species and misclassification of birch as pine (NW Russia site), pine as mixture of pine and spruce, and pine as mixture of spruce and beech (Czech site). Forest species are mapped with accuracy as high as 80% (NW Russia site) and 81% (Czech site). The classification using multitemporal multispectral data has a kappa coefficient 1.7 times higher than does that of classification using a single multispectral image and 1.3 times greater than that of the classification using single hyperspectral images. Potentially, classification accuracy can be improved by the method when applying multitemporal satellite hyperspectral data, such as in using new, near-future products EnMap and/or HyspIRI with high revisit time. Numéro de notice : A2020-324 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article DOI : 10.14214/sf.10143 date de publication en ligne : 02/03/2020 En ligne : https://doi.org/10.14214/sf.10143 Format de la ressource électronique : url article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=95198 [article]

GIS approach to publishing commonfacilities plans of land consolidation in the Czech Republic / Arnošt Müller in Geodetski vestnik, vol 62 n° 4 (December 2018 - February 2019)  

Public [article]  inGeodetski vestnik > vol 62 n° 4 (December 2018 - February 2019) . - pp 641 - 656 Titre : GIS approach to publishing commonfacilities plans of land consolidation in the Czech Republic Type de document : Article/Communication Auteurs : Arnošt Müller, Auteur Année de publication : 2018 Article en page(s) : pp 641 - 656 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes d'information géographique [Termes descripteurs IGN] base de données foncières [Termes descripteurs IGN] base de données localisées [Termes descripteurs IGN] cadastre étranger [Termes descripteurs IGN] changement climatique [Termes descripteurs IGN] données environnementales [Termes descripteurs IGN] données hydrographiques [Termes descripteurs IGN] érosion [Termes descripteurs IGN] modèle orienté objet [Termes descripteurs IGN] normalisation [Termes descripteurs IGN] paysage agricole [Termes descripteurs IGN] remembrement agricole [Termes descripteurs IGN] République Tchèque Résumé : (auteur) This paper introduces the process of land consolidation and current use of geographic information systems (GIS) in the Czech Republic. Contemporary land consolidation in the Central European region, unlike Western Europe, has been implemented relatively recently, hence there is no contingency or previous experience to build upon. This brings about an opportunity for a modern design of GIS‐based land consolidation. Although the design of land consolidation projects in the Czech Republic is mainly conducted in CAD software, this paper focuses on the utilisation of GIS and stresses the importance of standardisation of land consolidation data. Standardisation allows automatic processing of data as well as effortless publishing. The author proposes a new object‐oriented data model of the landscape plan (Common Facilities Plan), which allows for the storing of such plans in a central spatial database and adding attribute information to each object, thus providing analysis of the data in a GIS. The data model alongside data standardisation lays the groundwork for the architectural proposal of a new GIS (geoportal) of Common Facilities Plans. Numéro de notice : A2019-017 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.15292/geodetski-vestnik.2018.04.641-656 date de publication en ligne : 03/12/2018 En ligne : https://doi.org/10.15292/geodetski-vestnik.2018.04.641-656 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=91631 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
139-2018041	SL	Revue	Centre de documentation	Revues en salle	Disponible

The impact of map type on the level of student map skills / Lenka Havelková in Cartographica, vol 53 n° 3 (Fall 2018)  

Public [article]  inCartographica > vol 53 n° 3 (Fall 2018) . - pp 149 - 170 Titre : The impact of map type on the level of student map skills Type de document : Article/Communication Auteurs : Lenka Havelková, Auteur ; Martin Hanus, Auteur Année de publication : 2018 Article en page(s) : pp 149 - 170 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie thématique [Termes descripteurs IGN] carte choroplèthe [Termes descripteurs IGN] cartographie des flux [Termes descripteurs IGN] conception cartographique [Termes descripteurs IGN] diagramme [Termes descripteurs IGN] enseignement secondaire [Termes descripteurs IGN] enseignement supérieur [Termes descripteurs IGN] lecture de carte [Termes descripteurs IGN] République Tchèque [Termes descripteurs IGN] sémiologie graphique [Termes descripteurs IGN] utilisateur civil Résumé : (Auteur) Thematic maps are becoming increasingly important in the current information age, and therefore they have become part of the everyday life of the wider public. Given the number of mapping methods used in thematic cartography, the question arises of what extent the utilized method influences a user’s map use level. For this reason, research has been undertaken with 392 students in the 17–20 age group with the aim of identifying and clarifying the influence of the mapping methods used (specifically choropleth mapping, diagram mapping, qualitative and quantitative line symbols, and area shading). The results have shown that the students were less successful with maps that used quantitative mapping methods than with maps using qualitative or both qualitative and quantitative mapping methods. The differences were most significant in the case of the cognitively demanding map interpretation skill, especially due to the students’ problematic understanding of the very essence of the quantitative methods. The different natures of the tested mapping methods also probably accounted for the identification of various factors explaining the differences in the levels of the work with the given thematic maps among the individual tested students. Numéro de notice : A2018-674 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.3138/cart.53.3.2017-0014 date de publication en ligne : 01/10/2018 En ligne : https://doi.org/10.3138/cart.53.3.2017-0014 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=91203 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
031-2018031	SL	Revue	Centre de documentation	Revues en salle	Disponible

Evaluation of the cartographical quality of urban plans by eye-tracking / Jaroslav Burian in ISPRS International journal of geo-information, vol 7 n° 5 (May 2018)  

Public [article]  inISPRS International journal of geo-information > vol 7 n° 5 (May 2018) Titre : Evaluation of the cartographical quality of urban plans by eye-tracking Type de document : Article/Communication Auteurs : Jaroslav Burian, Auteur ; Stanislav Popelka, Auteur ; Marketa Beitlova, Auteur Année de publication : 2018 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes descripteurs IGN] communication cartographique [Termes descripteurs IGN] légende cartographique [Termes descripteurs IGN] oculométrie [Termes descripteurs IGN] plan de ville [Termes descripteurs IGN] qualité cartographique [Termes descripteurs IGN] République Tchèque [Termes descripteurs IGN] symbole graphique [Termes descripteurs IGN] utilisateur civil [Termes descripteurs IGN] ville [Vedettes matières IGN] Cartologie Résumé : (Auteur) This paper describes a study of the evaluation of cartographic quality of urban plans in the Czech Republic using eye-tracking. Although map visualization is a crucial part of the urban planning process, only a few studies have focused on the evaluation of these maps. The plans of four Czech cities with different styles of visualization and legends were used in this eye-tracking experiment. Respondents were required to solve spatial tasks consisting of finding and marking a certain symbol on a map. Statistical analyses of various eye-tracking metrics were used, and the differences between experts and students and between the map and legend sections of the stimuli were explored. The study results showed that the quality of map symbols and the map legend significantly influence the legibility and understandability of urban plans. For correct decision-making, it is essential to produce maps according to certain standards, to make them as clear as possible, and to perform usability testing on them. Numéro de notice : A2018-340 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.3390/ijgi7050192 date de publication en ligne : 17/05/2018 En ligne : https://doi.org/10.3390/ijgi7050192 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=90554 [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)  

Permalink

Hook, line and sinker / Jakub Karas in GEO: Geoconnexion international, vol 15 n° 7 (July - August 2016)

Permalink

Modelling distribution of archaeological settlement evidence based on heterogeneous spatial and temporal data / Peter Demján in Journal of archaeological science, vol 69 (May 2016)  

Permalink

Above-ground and below-ground competition between the willow Salix caprea and its understorey / Ondřej Mudrák in Journal of vegetation science, vol 27 n° 1 (January 2016)  

Permalink

Measuring spatial developments in the Czech Republic / Vladimíra Šilhánková in GIM international [en ligne], vol 30 n° 1 (January 2016)

Permalink

Celebrating progress in an historic city / Anonyme in GIM international [en ligne], vol 29 n° 11 (November 2015)

Permalink

Selected results of the survey focused on the economic assessment of forest ecosystem services / P. Hlaváčková in Journal of forest science, vol 61 n° 7 (July 2015)  

Permalink

Alien species pool influences the level of habitat invasion in intercontinental exchange of alien plants / Veronica Kalusová in Global ecology and biogeography, vol 23 n° 12 (December 2014)  

Permalink

Interface de GNU GAMA / Maxime Le Moual (2014) 

Permalink

Analysis of the repeated absolute gravity measurements in the Czech Republic, Slovakia and Hungary from the period 1991–2010 considering instrumental and hydrological effects / S. Zhang in Journal of geodesy, vol 87 n° 1 (January 2013)  

Permalink