نتایج جستجو برای: land cover

تعداد نتایج: 210213  

2004
Alexis Comber Peter Fisher Richard Wadsworth

Much geographic information is an interpretation of reality and it is possible for multiple interpretations to coexist. This is unproblematic for the research community but, as the numbers of users increase through initiatives resulting in data integration on an unprecedented scale, such as E-science and GRID, issues of information meaning and conceptualisation become more important. We explore...

2004
Daniel G. Brown Robert Walker Steven Manson Karen Seto

Models are used in a variety of fields, including land change science, to better understand the dynamics of systems, to develop hypotheses that can be tested empirically, and to make predictions and/or evaluate scenarios for use in assessment activities. Modeling is an important component of each of the three foci outlined in the science plan of the Land-use and -cover change (LUCC) project (Tu...

Increasing urbanization in the urbanized world has posed major challenges to the sustainability of metropolitan areas, especially in developing countries in various aspects of sustainable development, and has provided them with the prospect of unsustainable development. Excessive land use and its consequent land use changes and land cover are one of the environmental problems caused by the high...

2010
YOUHUA RAN XIN LI LING LU

Precise global/regional land cover mapping is of fundamental importance in studies of land surface processes and modelling. Quantitative assessments of the map quality and classification accuracy for existing land cover maps will help to improve accuracy in future land cover mapping. We compare and evaluate four land cover datasets over China. The datasets include the Version 2 global land cove...

Journal: :Remote Sensing 2016
Alfredo Fernández-Landa Nur Algeet-Abarquero Jesús Fernández-Moya María Luz Guillén-Climent Lucio Pedroni Felipe García Andrés Espejo Juan Felipe Villegas Miguel Marchamalo Javier Bonatti Iñigo Escamochero Pablo Rodríguez-Noriega Stavros Papageorgiou Erick Fernandes

REDD+ implementation requires robust, consistent, accurate and transparent national land cover historical data and monitoring systems. Satellite imagery is the only data source with enough periodicity to provide consistent land cover information in a cost-effective way. The main aim of this paper is the creation of an operational framework for monitoring land cover dynamics based on Landsat ima...

Journal: :journal of tethys 0

this study emphasized the ability of genetic algorithm and cellular automate to simulate urban land use changes by integrating adaptive model. the most important part of modeling is to define transition rules.  in this research, a cellular automata model in dinamica ego software was used coupled with genetic algorithm. according to disability of the software for manipulating large number of var...

Journal: :international journal of agricultural management and development 2016
khadijeh abolfathi marzieh alikhah-asl mohammad rezvani mohammad namdar

the growing population and increasing socio-economic necessitiescreates a pressure on land use/land cover. nowadays, land use change detection using remote sensing data provides quantitative and timely information for management and evaluation of natural resources. this study investigates the land use changes in part of hableh rood watershed of iran using landsat 7 and 8 (sensor etm+ and oli) i...

2015
Eero Nikinmaa

We studied the land-cover data used by the regional climate model REMO and the land surface model JSBACH, for Finland and surrounding areas. To date, the land-cover data determining REMO’s surface parameterisations have originated from the Global Ecosystem classification of the Global Land Cover Characteristics (GLCC-GEC) database. The same database has also been used as basis for prescribed pl...

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2012
Chadwick D Rittenhouse Anna M Pidgeon Thomas P Albright Patrick D Culbert Murray K Clayton Curtis H Flather Jeffrey G Masek Volker C Radeloff

Changes in land use and land cover have affected and will continue to affect biological diversity worldwide. Yet, understanding the spatially extensive effects of land-cover change has been challenging because data that are consistent over space and time are lacking. We used the U.S. National Land Cover Dataset Land Cover Change Retrofit Product and North American Breeding Bird Survey data to e...

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