نتایج جستجو برای: lulc

تعداد نتایج: 1069  

2017
Asif Ishtiaque Milan Shrestha Netra Chhetri

The Kathmandu Valley of Nepal epitomizes the growing urbanization trend spreading across the Himalayan foothills. This metropolitan valley has experienced a significant transformation of its landscapes in the last four decades resulting in substantial land use and land cover (LULC) change; however, no major systematic analysis of the urbanization trend and LULC has been conducted on this valley...

Journal: :Remote Sensing 2014
Yichen Tian Kai Yin Dengsheng Lu Lizhong Hua Qianjun Zhao Meiping Wen

Land use and land cover (LULC) datasets for Beijing in 1978, 1987, 1992, 2000 and 2010 were developed from Landsat images using the object-oriented classification approach. The relationships between social-economic, demographic and political factors and time-series LULC data were examined for the periods between 1978 and 2010. The results showed the effectiveness of using the object-oriented de...

2015
Galal Omer Onisimo Mutanga Elfatih M. Abdel-Rahman Elhadi Adam

Land use/land cover (LULC) classification is a key research field in environmental applications of remote sensing on the earth’s surface. The advent of new high resolution multispectral sensors with unique bands has provided an opportunity to map the spatial distribution of detailed LULC classes over a large fragmented area. The objectives of the present study were: (1) to map LULC classes usin...

Journal: :Environmental monitoring and assessment 2008
Tyler Wagner Patricia A Soranno Kendra Spence Cheruvelil William H Renwick Katherine E Webster Peter Vaux Robbyn J F Abbitt

We quantified potential biases associated with lakes monitored using non-probability based sampling by six state agencies in the USA (Michigan, Wisconsin, Iowa, Ohio, Maine, and New Hampshire). To identify biases, we compared state-monitored lakes to a census population of lakes derived from the National Hydrography Dataset. We then estimated the probability of lakes being sampled using general...

Journal: :Remote Sensing 2017
Hui Li Cuizhen Wang Cheng Zhong Zhi Zhang Qingbin Liu

Land use/land cover (LULC) change is one of the most important indicators in understanding the interactions between humans and the environment. Traditionally, when LULC maps are produced yearly, most existing remote-sensing methods have to collect ground reference data annually, as the classifiers have to be trained individually in each corresponding year. This study presented a novel strategy ...

Journal: :Remote Sensing 2016
Christoph Hütt Wolfgang Koppe Yuxin Miao Georg Bareth

When using microwave remote sensing for land use/land cover (LULC) classifications, there are a wide variety of imaging parameters to choose from, such as wavelength, imaging mode, incidence angle, spatial resolution, and coverage. There is still a need for further study of the combination, comparison, and quantification of the potential of multiple diverse radar images for LULC classifications...

2016
Wenjie Wang Chuanrong Zhang Jenica M. Allen Weidong Li Mark A. Boyer Kathleen Segerson John A. Silander

Land use and land cover (LULC) patterns play an important role in the establishment and spread of invasive plants. Understanding LULC changes is useful for early detection and management of land-use change to reduce the spread of invasive species. The primary objective of this study is to analyze and predict LULC changes in Connecticut. LULC maps for 1996, 2001 and 2006 were selected to analyze...

2013
Ola Ahlqvist

After decades of accomplishments and faced with new technological and scientific insights, the field of land use and land cover (LULC) is seemingly at a crossroads for effective and open uses of data. The use of categorical LULC data in computer-based land analysis poses a significant challenge because it usually leads to a binary treatment of the information in subsequent analysis. Still, LULC...

2016
Lulu Liu Wei Cao Quanqin Shao Lin Huang Tian He

Based on land use and land cover (LULC) datasets in the late 1970s, the early 1990s, 2004 and 2012, we analyzed characteristics of LULC change in the headwaters of the Yangtze River and Yellow River over the past 30 years contrastively, using the transition matrix and LULC change index. The results showed that, in 2012, the LULC in the headwaters of the Yellow River were different compared to t...

2017
Satya Savithri Murali Krishna

Received Dec 9, 2016 Revised Mar 27, 2017 Accepted Apr 11, 2017 The accurate land use land cover (LULC) classifications from satellite imagery are prominent for land use planning, climatic change detection and eco-environment monitoring. This paper investigates the accuracy and reliability of Support Vector Machine (SVM) classifier for classifying multispectral image of Hyderabad and its surrou...

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