• Aucun résultat trouvé

Land cover/use maps

Structural knowledge learning from maps for supervised land cover/use classification: Application to the monitoring of land cover/use maps in French Guiana

Structural knowledge learning from maps for supervised land cover/use classification: Application to the monitoring of land cover/use maps in French Guiana

... archive for the deposit and dissemination of sci- entific research documents, whether they are pub- lished or not. The documents may come from L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la ...

36

Automatic learning of structural knowledge from geographic information for updating land cover maps

Automatic learning of structural knowledge from geographic information for updating land cover maps

... 1. Introduction Geographic information have always been a key element for decision making in public policy, especially for planning. However, such information and the tools for represent, analyse and interpret them, ...

11

Towards an Improved Inventory of N2O Emissions Using Land Cover Maps Derived from Optical Remote Sensing Images

Towards an Improved Inventory of N2O Emissions Using Land Cover Maps Derived from Optical Remote Sensing Images

... the land use and/or on the crop ...in land use, with the following cases: (i) moving from an uncultivated area to a cultivated area with one of the considered N 2 O-emitting crops and vice ...

19

Atmospheric, radiative, and hydrologic effects of future land use and land cover changes: A global and multimodel climate picture

Atmospheric, radiative, and hydrologic effects of future land use and land cover changes: A global and multimodel climate picture

... Third, it is worth noting that grid cells in some regions exhibit a same sign of BPH response whatever the sign in tree fraction changes is. For instance, BPH temperature changes in temperate and boreal regions are ...

20

Quantifying land use/land cover spatio-temporal landscape pattern dynamics from Hyperion using SVMs classifier and FRAGSTATS®

Quantifying land use/land cover spatio-temporal landscape pattern dynamics from Hyperion using SVMs classifier and FRAGSTATS®

... The outcome of the classification using SVMs algorithm was evaluated based on the computation of four statistical parameters including Overall Accuracy (OA) Equation ( 1 ), User’s Accuracy (UA) Equation ( 2 ), Producer’s ...

17

Land use legacies on forest understory vegetation and soils in the Mediterranean region: Should we use historical maps or in situ land use remnants?

Land use legacies on forest understory vegetation and soils in the Mediterranean region: Should we use historical maps or in situ land use remnants?

... forest cover in 1860 (27%), the good maintenance of ancient forests in the present forest cover (41%) and the suitable connectivity of recent forest patches to ancient forest patches (the distance between ...

10

Land-use and land-cover change carbon emissions between 1901 and 2012 constrained by biomass observations

Land-use and land-cover change carbon emissions between 1901 and 2012 constrained by biomass observations

... agricultural land-use maps as the TRENDY models (the model of Houghton et ...gross land transi- tions as opposed to net transitions) and wood harvest; these are processes that are accounted ...

16

Use of various remote sensing land cover products for plant functional type mapping over Siberia

Use of various remote sensing land cover products for plant functional type mapping over Siberia

... Accurate land cover data sets are required to both document these changes as well as to provide land-surface information for benchmarking and initializing Earth system ...specific land ...

19

Homisland-IO : Homogeneous land use/land cover over the Small Islands of the Indian Ocean

Homisland-IO : Homogeneous land use/land cover over the Small Islands of the Indian Ocean

... LULC Maps Homisland-IO offers LULC classification maps in vector format for 11 islands of the Indian Ocean: Anjouan, Europa, Glorioso Islands, Grande Comore, Mauritius, Mahé, Mayotte, Mohéli, Réunion ...

11

Land cover maps of Antananarivo (capital of Madagascar) produced by processing multisource satellite imagery and geospatial reference data

Land cover maps of Antananarivo (capital of Madagascar) produced by processing multisource satellite imagery and geospatial reference data

... four land use maps of Antananarivo city produced over 2017 reference year using a methodology combining machine learning and ob- ject based image analysis ...These maps are produced by ...

14

Assessment of Spatio-Temporal Changes of Land Use and Land Cover over South-Western African Basins and Their Relations with Variations of Discharges

Assessment of Spatio-Temporal Changes of Land Use and Land Cover over South-Western African Basins and Their Relations with Variations of Discharges

... different land use ...spatio-temporal land use and land cover changes over three South Western African basins (Volta, Mono and Sassandra basins) and their influence on ...The ...

26

Attribute profiles on derived features for urban land cover classification

Attribute profiles on derived features for urban land cover classification

... urban land cover classification maps and to find an optimal methodology to produce land cover maps of high thematic accuracy from aerial ...the use of attribute profiles ...

12

Use of multi-angle high-resolution imagery and 3D information for urban land-cover classification: a case study on Istanbul

Use of multi-angle high-resolution imagery and 3D information for urban land-cover classification: a case study on Istanbul

... the use of remote sensing data for measuring and modelling urban dynamics, the increase of sealed surface area is one of the major parameters taken into ...surface maps of the very dynamic city of Istanbul ...

12

Towards land cover map updating with ground-level panoramic photos

Towards land cover map updating with ground-level panoramic photos

... of land cover ...the use of ground-level geo-located landscape panoramic photos providing high spatial resolution information of the ...the land cover type of the geographic ...to ...

7

Forest recovery since 1860 in a Mediterranean region: drivers and implications for land use and land cover spatial distribution

Forest recovery since 1860 in a Mediterranean region: drivers and implications for land use and land cover spatial distribution

... forest cover and the very low rate of deforestation over the whole period confirmed the forest recovery context in the northern Mediterranean region (Nogues-Bravo 2006 ; Falcucci et ...of land degradation ...

18

Holocene land-cover reconstructions for studies on land cover-climate feedbacks

Holocene land-cover reconstructions for studies on land cover-climate feedbacks

... pogenic land cover change (ALCC) developed during the last ten years, (2) to discuss issues related to pollen-based recon- struction of the past land-cover and introduce a new method, REVEALS ...

18

Gross and net land cover changes in the main plant functional types derived from the annual ESA CCI land cover maps (1992–2015)

Gross and net land cover changes in the main plant functional types derived from the annual ESA CCI land cover maps (1992–2015)

... CCI maps and FAO data (cropland and pas- ture area changes in LUH2v2h, Hurtt et ...distinguish land use and land cover when compil- ing forest ...this land, thus no change in ...

17

Sensitivity of land use change emission estimates to historical land use and land cover mapping

Sensitivity of land use change emission estimates to historical land use and land cover mapping

... the Land Use Harmonization historical ...past land cover maps to reconstruct 10 different sets of historical maps for the 13 PFTs of the ORCHIDEE terrestrial biosphere model (see ...

19

Historical CO2 emissions from land use and land cover change and their uncertainty

Historical CO2 emissions from land use and land cover change and their uncertainty

... 5 Conclusions In spite of those caveats, this study has introduced an in- novative method to estimate historical LULCC emissions and LASC, whereby a bookkeeping approach, data from processed-based models, several LULCC ...

28

Predicting the spatial distribution of population based on impervious surface maps and modeled land use change

Predicting the spatial distribution of population based on impervious surface maps and modeled land use change

... sprawl, land use changes are observed and the spatial distribution of population is modified with obvious consequences on several aspects of urban live and organization, like changes in accessibility and ...

12

Show all 3722 documents...

Sujets connexes