one of the most important information in urban forestry is acquaintance of urban landscape’s area or proportion. nowadays, in several countries variable methods are used to achieve this aim. since there is not any complete method to study urban forest’s status in iran, it is impossible to exert authentic management for these resources. hence, in this research, sampling methods and ikonos satell...

Method for 3D map creation based on knowledgebase system for texture mapping together with height estimation using objects’ shadows with high spatial resolution of remote sensing satellite imagery data is proposed. Through the experiments with IKONOS imagery data, the proposed method is validated. Keywords—texture mapping; remote sensing satellite; 3D map; object height estimation;

The large number of data sources on the Internet can be used to augment and verify the accuracy of geospatial sources, such as gazetteers and annotated satellite imagery. Data sources such as satellite imagery, maps, gazetteers and vector data have been traditionally used in geographic information systems (GIS), but nontraditional geospatial data, such as online phone books and property records...

Abstract Kueishantao (KST) is an active volcanic island off the northeastern coast of Taiwan. Tectonically, it lies in south Okinawa Trough and opposite to Ilan plain, which southwestern end trough. KST provides a convenient observation site for subsurface geological geothermal activity mechanism at its proximity. Land surface temperature (LST) volcanoes detected from satellite sensors reflects...

Detection of urban objects in very high resolution (VHR) satellite imagery is challenging due to the similarities in the spectral and textural characteristics of urban land cover classes. Therefore, additional information such as elevation data is required for a proper classification. In this study, instead of LiDAR data, elevation information generated from satellite stereo images is used to a...

Panchromatic (PAN) satellite imagery has been used successfully in different applications such as topographic mapping and terrain modelling. Nevertheless, PAN imagery is still one of the less used digital sources for land-change studies except few processes where the high-resolution of the PAN images is used to improve the visualization quality of the multi-spectral images. This research aimed ...

The recent launch and operational deployment of the WorldView-2 satellite by DigitalGlobe has remote sensing experts around the world in a state of excitement. Not only does this advanced new satellite offer extremely high resolution imagery with 50cm pixels, but the 8 bands that it collects promise greater insight into classifying and mapping the world in which we live. Besides the visible col...

Abstract Glaciers in the Russian High Arctic have undergone accelerated mass loss due to atmospheric and oceanic warming Barents–Kara Sea region. Most studies concentrated on western sector, despite evidence of accelerating as far east Severnaya Zemlya. However, long-term trends glacier change Zemlya are largely unknown this record may be complicated by surge-type glaciers. Here, we present a a...

0308-521X/$ see front matter Published by Elsevier doi:10.1016/j.agsy.2009.01.002 * Corresponding author. Tel.: +701 667 3002; fax: + E-mail address: [email protected] (R. P Spatiotemporal variability in forage quantity and quality requires that regular assessment is needed of the capacity for grasslands to support livestock nutritional requirements. Current methods for estimating g...

Imagery is the basic input element of the photogrammetric map production. For decades, aerial photography has been the dominant option to fulfill the imagery request of the photogrammetry and the other disciplines. Due to the significant development in the field of remote sensing spacecraft and the on-board sensors, space imagery has become a serious alternative to the aerial photography. High-...