نتایج جستجو برای: lulc

تعداد نتایج: 1069  

2007
JOSEPH G. ALFIERI DEV NIYOGI MARGARET A. LEMONE FEI CHEN SOULEYMANE FALL

With increasing computational resources, environmental models are run at finer grid spacing to resolve the land surface characteristics. The land use/land cover (LULC) data sets input into land surface models are used to assign various default parameters from a look-up tables. The objective of this study is to assess the potential uncertainty in the LULC data and to present a reclassification m...

2014
Denis Mutiibwa Ayse Kilic Suat Irmak

We present the detection of the signatures of land use/land cover (LULC) changes on the regional climate of the US High Plains. We used the normalized difference vegetation index (NDVI) as a proxy of LULC changes and atmospheric CO2 concentrations as a proxy of greenhouse gases. An enhanced signal processing procedure was developed to detect the signatures of LULC changes by integrating autoreg...

2015
Valentin Aich Stefan Liersch Tobias Vetter Jafet C. M. Andersson Eva N. Müller Fred F. Hattermann Lutz Breuer

This study intends to contribute to the ongoing discussion on whether land use and land cover changes (LULC) or climate trends have the major influence on the observed increase of flood magnitudes in the Sahel. A simulation-based approach is used for attributing the observed trends to the postulated drivers. For this purpose, the ecohydrological model SWIM (Soil and Water Integrated Model) with...

2014
Terry L. Sohl

Species distribution models often use climate data to assess contemporary and/or future ranges for animal or plant species. Land use and land cover (LULC) data are important predictor variables for determining species range, yet are rarely used when modeling future distributions. In this study, maximum entropy modeling was used to construct species distribution maps for 50 North American bird s...

2017
Babak Farjad Anil Gupta Saman Razavi Monireh Faramarzi Danielle J. Marceau

This study proposes an integrated modeling system consisting of the physically-based MIKE SHE/MIKE 11 model, a cellular automata model, and general circulation models (GCMs) scenarios to investigate the independent and combined effects of future climate and land-use/land-cover (LULC) changes on the hydrology of a river system. The integrated modelling system is applied to the Elbow River waters...

2007
Fenglei Fan Qihao Weng Yunpeng Wang

Land use and land cover change is a major issue in global environment change, and is especially significant in rapidly developing regions in the world. With its economic development, population growth, and urbanization, Guangzhou, a major metropolitan in South China, have experienced a dramatic land use and land cover (LULC) change over the past 30 years. Fast LULC change have resulted in degra...

Journal: :International Journal of Health Geographics 2006
Benjamin G Jacob Josephat Shililu Ephantus J Muturi Joseph M Mwangangi Simon M Muriu Jose Funes John Githure James L Regens Robert J Novak

BACKGROUND Continuous land cover modification is an important part of spatial epidemiology because it can help identify environmental factors and Culex mosquitoes associated with arbovirus transmission and thus guide control intervention. The aim of this study was to determine whether remotely sensed data could be used to identify rice-related Culex quinquefasciatus breeding habitats in three r...

2014
Lutz Ehlkes Anne Caroline Krefis Benno Kreuels Ralf Krumkamp Ohene Adjei Matilda Ayim-Akonor Robin Kobbe Andreas Hahn Christof Vinnemeier Wibke Loag Udo Schickhoff Jürgen May

BACKGROUND Malaria is a mosquito-borne parasitic disease that causes severe mortality and morbidity, particularly in Sub-Saharan Africa. As the vectors predominantly bite between dusk and dawn, risk of infection is determined by the abundance of P. falciparum infected mosquitoes in the surroundings of the households. Remote sensing is commonly employed to detect associations between land use/la...

2016
Kelsey N. Scheitlin Grady Dixon KELSEY N. SCHEITLIN P. GRADY DIXON

This study examines the relationship between diurnal temperature range (DTR) and land use/land cover (LULC) in a portion of the Southeast. Temperature data for all synoptically weak days within a 10-yr period are gathered from the National Climatic Data Center for 144 weather stations. Each station is classified as one of the following LULC types: urban, agriculture, evergreen forest, deciduous...

2012
Jinliang Huang Pei Zhou Zengrong Zhou Yaling Huang

Land use and land cover (LULC) information is an important component influencing watershed modeling with regards to hydrology and water quality in the river basin. In this study, the sensitivity of the Soil and Water Assessment Tool (SWAT) model to LULC datasets with three points in time and three levels of detail was assessed in a coastal subtropical watershed located in Southeast China. The r...

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