Comparability and subjectivity of landcovermaps produced with digital image classification techniques : some recent experiences from Denmark and northern Germany
Automated mapping ; Classification ; Comparative study ; Denmark ; Geographical information system ; Germany ; Image processing ; Land use ; Plant cover ; Remote sensing ; Satellite imagery ; Schleswig-Holstein ; Thematic mapping
This paper discusses issues related to the operationalisation of landcovermapping from image data. Specifically, it presents the methods and experiences of 2 recent landcovermapping projects, covering Denmark and parts of the German state
of Schleswig-Holstein in terms of their comparability and their handling of subjective aspects of the mapping. These methods and results reflect upon the needs to handle within statistical image analysis techniques such as supervised maximum likelihood
Seasonal land-cover regions of the United States. Map supplement
AVHRR ; Biogeography ; Cultivated land ; Data base ; Forest ; Global change ; NOAA ; Plant cover ; Remote sensing ; Seasonal variation ; Thematic mapping ; United States of America
This paper presents a new classification of U.S. landcover based on AVHRR data. One hundred fifty-nine seasonal land-cover regions are described and mapped according to their vegetative composition, phenology (onset, peak, and length of green
period), relative productivity, and other landscape parameters. The scales of the maps are 1:7,500,000, 1:10,000,000, 1:20,000,000 and 1:63,000,000.
Estimation of land coverage from a landcover classification derived from remotely sensed data
Classification ; Data processing ; Discriminant analysis ; LANDSAT ; Land use ; Plant canopy ; Remote sensing ; Thematic Mapper ; United Kingdom ; Wales
Analyse discriminante ; Classification ; Couvert végétal ; LANDSAT ; Royaume-Uni ; Thematic Mapper ; Traitement des données ; Télédétection ; Utilisation du sol ; Wales
This paper aims to illustrate the estimation of landcover class coverage from an image classification. It focuses on a case study which aimed to derive accurate estimates of the coverage of industrially despoiled land in administratively defined
Integrating geographical data and phenological characteristics derived from MODIS data for improving landcovermapping
China ; Comparative study ; LANDSAT ; Land use ; North-Eastern China ; Phenology ; Plant cover ; Satellite imagery ; Soil properties ; Thematic mapping
The study developed a feasible method for large-area landcovermapping with combination of geographical data and phenological characteristics, taking Northeast China (NEC) as the study area. First, with the monthly average of precipitation
) classifiers were then performed to produce landcovermaps for each region. The results highlight that this landcovermap produced (NEC_MODIS) has a good performance.
with phenological variables derived from the moderate resolution imaging spectroradiometer (MODIS) data (enhanced vegetation index (EVI) and land surface water index (LSWI)), which were taken as input variables of landcover classification. Decision Tree (DT
Characterisation of landcover types in Xilin River Basin using multi-temporal Landsat images
China ; Classification ; Inner Mongolia ; LANDSAT ; Land use ; Plant canopy ; Remote sensing ; Thematic Mapper ; Vegetation ; Watershed
Bassin-versant ; Chine ; Classification ; Couvert végétal ; LANDSAT ; Nei Menggu ; Thematic Mapper ; Télédétection ; Utilisation du sol ; Végétation
This study conducted computer-aided image analysis of land use and landcover in Xilin River Basin, Inner Mongolia, using 4 sets of Landsat TM/ETM+ images acquired on July 31, 1987, August 11, 1991, September 27, 1997 and May 23, 2000, respectively
. Primarily, 17 sub-class landcover types were recognized, including 9 grassland types. To eliminate the classification error existing among different sub-types of the same gross type, the 17 sub-class landcover types were grouped into 5 gross types : meadow
Geographical approach to interpretation of data obtained be remote sensing of earth on the example of analysis of land use (landcover)
The geographical approach to interpretation of data obtained by remote sensing indicates the priority of use of photographs which make exact the analysis of land use and landcover. The general application of a land use map is indicated
Assessing the landcover change of Accra using Landsat-TM data
Data processing ; Geographical information system ; Ghana ; LANDSAT ; Land use ; Remote sensing ; Thematic Mapper ; Town ; Urban growth
Croissance urbaine ; Ghana ; LANDSAT ; Système d'information géographique ; Thematic Mapper ; Traitement des données ; Télédétection ; Utilisation du sol ; Ville
The objective of this study is to produce a landcovermap of Accra, showing the recent spatial growth in order to assess the nature of this growth and the current spatial development trends. A second purpose is to test the adequacy of Landsat-TM
images for urban change detection studies. Comments are made on the rationale for landcovermapping based on digital satellite images. The applied image processing method includes a texture-based classification method, pixel to vector conversion post
The effect of land use/cover change on surface runoff in Shenzhen region, China
China ; Flood ; Guangdong ; LANDSAT ; Land use ; Model ; Pic discharge ; Remote sensing ; Rill wash ; Thematic Mapper ; Urbanization
Chine ; Crue ; Débit de pointe ; Guangdong ; LANDSAT ; Modèle ; Ruissellement ; Thematic Mapper ; Télédétection ; Urbanisation ; Utilisation du sol
In this study, Buji River basin in Shenzhen Region was selected to analyse the effect of land use and cover change on surface runoff. Teledetection data are used. The impact of urbanization is discussed.
image of 2012. Areal proportions of successional land-cover types were then derived from the resulting land-covermap. The second aim of this study was to relate these areal proportions to time since deforestation, which is expected to influence fallow
The aim of this study was to identify these successional land-cover types and quantify their areal proportions in regions deforested during the past 37 years around the city of Kisangani, D.R. Congo. The fallow vegetation continuum was categorized
in different stages, adapted from existing classifications. Ground-truth points describing the present-day vegetation were obtained during a field campaign and used for supervised and validated land-cover classification of these categories, using the Landsat
Historical land-use/land-cover changes in a bottomland hardwood forest, Bayou Fountain, Louisiana
Forest ; Geographical information system ; Human impact ; LANDSAT ; Land use ; Louisiana ; Remote sensing ; Riparian vegetation ; Thematic Mapper ; United States of America ; Vegetation
Action anthropique ; Années 1849-1998 ; Etats-Unis ; Forêt ; LANDSAT ; Louisiana ; Système d'information géographique ; Thematic Mapper ; Télédétection ; Utilisation du sol ; Végétation ; Végétation ripicole
The AA. used GIS to compare past land-use/land-cover information from General Land Office (GLO) surveys taken in 1849/1851 with current forest composition to illustrate the extensive changes that have occurred in bottomland hardwood forest
composition over the past 150 years in East Baton Rouge Parish, Louisiana. Agricultural lands, hardwood wetlands, and urban lands increased in area at the expense of rangelands and swamplands. Without conservation efforts, bottomland hardwood forests
Four windows on borderlands : dimensions of place defined by landcover change data from historical maps
Environmental change ; Environmental psychology ; Frontier region ; Geographical information system ; Historical mapping ; Hungary ; Land use ; Man-environment relations ; Perception ; Plant cover ; Prekmurje ; Slovenia ; Time series
Perceptions of landcover changes in four borderline areas of Prekmurje were determined by a set of historical maps with the goal of calculating changes and analysing stability of studied areas, both from landcover perspective. Map analysis
was based on stability mapping and proportionating landcover categories, using time series cartography. Studied region seems stable, although over centuries inhabitants withdrew slightly from natural and political borders. As windows in the environmental
Grossmasstäbige Flächennutzungskartierungen unter stadtokologischen Aspekten (Large-scale mapping of land use on aspects of town-ecology)
The author defines land use as the utilization and management of parts of the earth's surface for the fulfillment of space-consuming basic functions of society. The following main types of urban land use are mentioned : sealed areas, open areas
, water bodies, open areas covered by vegetation, areas with special vegetation. - (IH)
Monitoring Norwegian farmland loss through periodically updated landcovermap data
Arable land ; Environmental change ; Farm ; Geographical information system ; Land use ; Norway ; Plant cover
The study investigates to what extent the periodic updating of Norwegian landcover data can satisfy the need to monitor farmland decrease. GIS analysis is performed for two municipalities. Changes during a c.10-year period are analysed
Landcover changes in the rural-urban interaction of Xi'an region using Landsat TM/ETM data
China ; LANDSAT ; Land use ; Plant canopy ; Remote sensing ; Rural-urban relations ; Shaanxi ; Thematic Mapper ; Urban development ; Years 2000-2009
Années 2000 ; Chine ; Couvert végétal ; Développement urbain ; LANDSAT ; Shaanxi ; Thematic Mapper ; Télédétection ; Utilisation du sol ; Ville-campagne
Landsat ETM/TM data and an artificial neural network (ANN) were applied to analyse the expansion of the city of Xi'an and land use/cover change of its surrounding area between 2000 and 2003. Supervised classification and normalized difference barren
index (NDBI) were used respectively to retrieve its urban boundary. The land use/cover changes of Xi'an were mainly caused by fast development of urban economy, population immigration from countryside, great development of infrastructure
Monitoring the effects of land use and cover type changes on soil moisture using remote-sensing data : a case study in China's Yongding River basin
China ; Cultivated land ; Eastern China ; Forest ; Grassland ; LANDSAT ; Land use ; Model ; Plant cover ; Remote sensing ; Soil moisture ; Surface temperature ; Thematic Mapper ; Vegetation index ; Watershed
Années 1987-2005 ; Bassin-versant ; Chine ; Chine de l'Est ; Couverture végétale ; Formation herbacée ; Forêt ; Humidité du sol ; Indice de végétation ; LANDSAT ; Modèle ; Sol cultivé ; Température de surface ; Thematic Mapper ; Télédétection
Aprovechamiento del suelo ; Bosque ; China ; China del Este ; Cobertura vegetal ; Cuenca hidrográfica ; Formación herbácea ; Humedad del suelo ; LANDSAT ; Modelo ; Suelo cultivado ; Teledetección ; Temperatura de superficie ; Thematic Mapper
a land use and cover type map by classification of the Landsat images, and used the map to study the influence of land use and cover type changes on soil moisture : farmland converted into grassland; grassland converted into farmland; and forest converted
Data base ; LANDSAT ; New Zealand ; North Island ; Plant cover ; Remote sensing ; SPOT ; Thematic Mapper ; Thematic mapping ; Vegetation ; Vegetation dynamics
Base de données ; Cartographie thématique ; Couverture végétale ; Dynamique de la végétation ; LANDSAT ; North Island ; Nouvelle-Zélande ; SPOT ; Thematic Mapper ; Télédétection ; Végétation
This paper reviews four methods of examining current landcover features using remotely sensed data, and describes the application of the preferred method to a study area of about 500 km2, on the North Island west coast where 36 NZLRI (New Zealand
Land Resource Inventory) vegetation classes occurred.