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Showing papers in "International Journal of Applied Earth Observation and Geoinformation in 2008"


Journal ArticleDOI
TL;DR: Urban sprawl of the Ajmer city has been studied at a mid scale level, over a period of 25 years, to extract the information related to sprawl, area of impervious surfaces and their spatial and temporal variability.

498 citations


Journal ArticleDOI
TL;DR: MODIS-NDVI data, with a 250 m resolution, was used to estimate the winter wheat yield in one of the main winter-wheat-growing regions and the method suggested was good for predicting regional winter wheat production and yield estimation.

285 citations


Journal ArticleDOI
TL;DR: Results indicate that multi-temporal fraction images were effective for quantifying the dynamics of urban morphology and for deriving a reliable measurement of environmental variables such as vegetation abundance and impervious surface coverage.

233 citations


Journal ArticleDOI
TL;DR: This study proposes empirical ordinary least squares regression models to forecast the yields at provincial and national levels of wheat in Morocco based on dekadal (10-daily) NDVI/AVHRR, deKadal rainfall sums and average monthly air temperatures.

175 citations


Journal ArticleDOI
Yan Zhu1, Xia Yao1, Yongchao Tian1, Xiaojun Liu1, Weixing Cao1 
TL;DR: LNA in both wheat and rice could be indicated with common VIs, but separate regression equations are better for LNA monitoring because of the better relations between VIs and LNA.

146 citations


Journal ArticleDOI
TL;DR: The study confirmed that the spectral contrast between leaves and soil background determines the strength of the LAI–reflectance relationship, and suggested that some kind of landscape stratification is required before using hyperspectral imagery for large-scale mapping of vegetation biophysical variables.

140 citations


Journal ArticleDOI
TL;DR: Wang et al. as mentioned in this paper used the Fourier analysis method to identify crop planting patterns in the Northern China plain and extracted the key parameters to discriminate crop types using time-series EOS-MODIS NDVI data.

132 citations


Journal ArticleDOI
TL;DR: Using ‘treated’ evidence maps, instead of ' original'evidence maps, results in better Mineral prospectivity maps and knowledge-guided data-driven modeling of mineral prospectivity is better than a 'purely' data- driven modeling of minerals prospectivity.

131 citations


Journal ArticleDOI
TL;DR: In order to avoid the potential influence of atmospheric water vapour absorption bands the derivative of the reflectance on the right slope of the canopy water absorption feature at 970 nm can best be used for estimating CWC.

131 citations


Journal ArticleDOI
TL;DR: A new combined pixel-specific NDVI threshold and decision rule-based mapping method was developed to determine the onset and end of the growing season and a moderately high correlation was found between NDVI data and birch phenology data.

124 citations


Journal ArticleDOI
TL;DR: The presented approach that uses coarse-resolution temporal data for determining erosion periods and medium-resolution data for effective erosion risk mapping is fast and straightforward and shows good potential for successful application in other areas with high spatial and temporal variability of vegetation cover.

Journal ArticleDOI
TL;DR: The contingency table obtained overlaying CLC and LUCAS gives the fine scale composition of CLC classes, and using CLC for post-stratification of L UCAS is equivalent to the direct calibration estimator when the sampling units are points.

Journal ArticleDOI
TL;DR: In this paper, the WOFOST model was adjusted and regionalized for winter wheat in North China and coupled through the LAI to the SAIL-PROSPECT model in order to simulate soil adjusted vegetation index (SAVI).

Journal ArticleDOI
TL;DR: The neural network seems attractive for wide-scale, regional area estimation in data-poor countries, especially when aggregated to the level of the municipality or district.

Journal ArticleDOI
TL;DR: The results indicate that a recalibration of the model parameters is necessary before the MeteoSatderived meteorological variables can be used operationally in the system.

Journal ArticleDOI
TL;DR: A spatial level comparative evaluation of different landslide susceptibility zonation (LSZ) raster maps of the same area derived from various procedures to get a detailed insight into the performance of each of the weighting procedures for landslide susceptibilityZonation.

Journal ArticleDOI
TL;DR: The simulation results showed that AnnAGNPS has the potential to be used as a valuable tool for planning and management of watersheds under Malaysian conditions and was found to be the main contributors to soil erosion.

Journal ArticleDOI
TL;DR: An attempt has been made to understand the potential of temporal Advanced Wide Field Sensor (AWiFS) data aboard IRS-P6 (Resourcesat) to generate the land use land cover information along with the net sown area to give a better definition of training sites thereby resulting in good overall kappa.

Journal ArticleDOI
TL;DR: The regression models generated in the study between NDVI and LAI; LAI and biomass can also help in generating spatial biomass map using RS data alone as well as for the validation of various coarse resolution satellite products derived from the ground-based measurements alone.

Journal ArticleDOI
TL;DR: An assessment of the status of the vital coastal ecosystems has been made using pre- and post-tsunami Advance Wide Field Sensor (AWiFS) data of Indian satellite RESOURCESAT with an accuracy of 87–90% and the Kappa ranging from 0.8696 to 0.9053.

Journal ArticleDOI
TL;DR: This paper presents a methodology to estimate crop acreage using the MODIS 16-day composite NDVI product, and a novel method based on a pure pixel field sampling is introduced which was found to be superior.

Journal ArticleDOI
TL;DR: A methodology for forest mapping based on high resolution satellite data, relevant for reporting on forest cover and spatial pattern changes in Europe, is elaborate and allows an accurate forest–non-forest map to be obtained in a quick and cost effective manner.

Journal ArticleDOI
TL;DR: The VRAF index is a good parameter for assessing the capability of vegetation to recover in northern Mediterranean areas and should be used for assessing human intervention to improve this capability.

Journal ArticleDOI
TL;DR: The spatial distribution of some soil chemical properties and trace element contents of a plot affected by the Aznalcollar mine spill were investigated using statistical and geostatistical methods and kriged maps showed distinct spatial distribution and hence different behaviour for the elements considered.

Journal ArticleDOI
TL;DR: A layer-based ontology with additional layers for describing geo- services, especially the measurement units used, is proposed, which is the building block for discovering geo-services that support semantic interoperability in GIS and environmental modeling.

Journal ArticleDOI
TL;DR: The temporal signature from each of these sensors was found to complement each other in crop growth monitoring and the decrease of backscatter after first peak was associated with the threshold value of 60% crop canopy cover.

Journal ArticleDOI
TL;DR: Temperature vegetation dryness index (TVDI) data sets, which represent soil moisture content, were extracted from MODIS remote sensing images for two representative time periods: a severe locust plague breakout year (2001–2002) and a slight plague year (2003–2004).

Journal ArticleDOI
TL;DR: 2D dipole–dipole resistivity data and ground magnetic survey are used in combination with available data from boreholes and surface geology to detect subsurface structures and stratigraphic units and to study the ability of the site area for a building construction.

Journal ArticleDOI
TL;DR: The objectives of the paper are to demonstrate that the 3D affine model and its modifications of the3D polynomial models are applicable to different satellite sensors and different types of terrain and under some conditions, the empirical models can produce accuracies close to those from rigorous mathematical models.

Journal ArticleDOI
TL;DR: The study concludes that higher spatial resolution satellite data and integrates social survey helps to assess the socio-economic status of the population for tax contribution purposes.