نتایج جستجو برای: land cover change detection

تعداد نتایج: 1310818  

2004
Q. Zhou C. Zhou

It is now common to use data from two or more sensors for land cover change detection. Since the spatial and spectral resolutions of different sensors vary significantly, the ability to discriminate the land cover also varies greatly. In this paper the applications of landuse change detection including area statistics, temporal trajectories and spatial pattern are discussed. The area statistics...

2016
Omoleomo Olutoyin Omo-Irabor

A critical problem associated with the southern part of Nigeria is the rapid alteration of the landscape as a result of logging, agricultural practices, human migration and expansion, oil exploration, exploitation and production activities. These processes have had both positive and negative effects on the economic and socio-political development of the country in general. The negative impacts ...

2008
Bethany A. Bradley Erica Fleishman

Land-cover change is a major component of global change (Foley et al., 2005). Many forms of land-cover change, such as deforestation and urbanization, are directly associated with land use. Other land-cover changes, such as melting of permafrost, may be indirectly associated with human activity via anthropogenically induced climate change. Further changes in land cover, such as the expansion of...

2011
N. Nagarajan S. Poongothai

The study aims to effects of Land Use / Land Cover Changes (LU/LCC) is the quantitative method, to expound the impact of land use/land cover changes in Manimuktha sub-watershed of Vellar basin, Tamilnadu, India. The relationship between Land Use Changes and its trend is analysed using IRS IC LISS III and PAN merged data. Further, the preparation of LU/LC map using Survey of India (SOI) Toposhee...

Journal: :محیط زیست طبیعی 0
میترا شیرازی کارشناسی ارشد بیابان زدایی، دانشگاه تهران، ایران غلامرضا زهتابیان استاد دانشکده منابع طبیعی، دانشگاه تهران، ایران سید کاظم علوی پناه استاد دانشکده جغرافیا، دانشگاه تهران، ایران

multi-spectral remotely sensed data is useful information source for the detection of surface changes and change detection is a major application of the remotely sensed data. this study is conducted to investigate capability of sensor liss-iii of irs-p6resource satellite data for providing land cover map, in najm abad of savojbolagh region with 20000 ha area. the images of 26th june, 2006 were ...

ژورنال: علوم آب و خاک 2009
براتی قهفرخی, سوسن, خواجه الدین, سید جمال الدین, رایگانی, بهزاد, سلطانی کوپایی, سعید,

To investigate land use changes, Qale Shahrokh basin (15098.1 ha area) was selected. Satellite images of Landsat sensors (MSS, TM and ETM+) were used. After improvement and different enhancement analysis of images such as FCC, PCA, the study area was checked using GPS and topographic maps (1:50000) and other information. Land use units were determined using classified random sampling method. Ma...

2010
Li Guo Linlin Ge Xiaojing Li

The 2009 Victorian bushfires, also called the Black Saturday bushfires, ignited across the Australian state of Victoria on Saturday 7 February 2009, resulting in Australia’s highest ever loss of life from a bushfire. According to the Victorian Police, the bushfires caused at least 173 known deaths of people and 414 people injured. The use of multispectral Landsat Thematic Mapper (TM) data was a...

2012
ASPIYA BEGUM S. YAMINI K. BALAKRISHNA

ABSTRACT Land use and land cover change has become a central component in current strategies for managing natural resources and monitoring environmental changes. Urban expansion has brought serious losses of agriculture land, vegetation land and water bodies. Urban sprawl is responsible for a variety of urban environmental issues like decreased air quality, increased runoff and subsequent flood...

2011
Chengfan LI Jingyuan YIN Junjuan ZHAO Feiyue YE

The remote sensing technology can extract change information of land cover quickly, and is widely used in real-time monitoring land use changing and urban expansion. According to the characteristics of land cover information identification present in high resolution remote sensing images, a new identification algorithm of land cover change information based on independent component analysis (IC...

2014
TYLER WAGNER STEPHEN R. MIDWAY

Predicting species distributions at scales of regions to continents is often necessary, as largescale phenomena influence the distributions of spatially structured populations. Land use and land cover are important large-scale drivers of species distributions, and landscapes are known to create species occurrence thresholds, where small changes in a landscape characteristic results in abrupt ch...

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