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Recent snow cover variation in the Upper Indus Basin of Gilgit Baltistan, Hindukush Karakoram Himalaya

Journal of Mountain Science 2019年第2期16卷 296-308页

作者： Hazrat BILAL CHAMHURI Siwar MAZLIN Bin Mokhtar kasturi devi kanniah Institute for Environment and Development (LESTARI) Universiti Kebangsaan Malaysia The National University of Malaysia (UKM) Centre for Environmental Sustainability and Water Security (IPASA) Research Institute for Sustainable Environment (RISE) Faculty of Geoinformation and Real Estate University Technology Malaysia (UTM)

Mountainous basins like the Upper Indus Basin(UIB) of Gilgit Baltistan(GB) are dependent on seasonal snowmelt and glacier melt. Monitoring of the snow-covered area(SCA) is not only vital for the overall hydrology of the Indus basin but also important to the sustainable agriculture and hydropower system. The snow-covered area in the UIB of GB was investigated for changes over the last 18 years using the Moderate Resolution Imaging Spectroradiometer(MODIS) snow product. The study area was divided into five elevation zones ranging from 877-8564 meters above sea level(m ASL). In contrast to the global cryosphere related studies, SCA in the UIB is slightly increasing. Elevation based SCA analysis also indicated that SCA is slightly increasing in each elevation zone. However, a significant amount of snow is concentrated in areas above 5000 m ASL. Due to the strong correlation between SCA and precipitation, the precipitation data also follow a similar trend. Analysis of the climatic data suggests a statistically significant increase in total monthly precipitation and relative humidity, a slight decrease in mean monthly temperature and a significant upward tendency in monthly solar irradiance data. All these trends in combination with the increasing trend in global precipitation, winter westerly disturbances and orographic precipitation are the important factors behind the slightly increasing SCA in the study area. Our results though constrained by short observation period mainly contribute to the understanding of advancing snow cover and glaciers in Hindukush Karakoram.

关键词： Snow MODIS Westerly disturbances Climate change Upper Indus Basin Glaciers

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A review of remote sensing applications for oil palm studies

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Geo-Spatial Information Science 2017年第2期20卷 184-200页

作者： Khai Loong Chong kasturi devi kanniah Christine Pohl Kian Pang Tan Faculty of Geoinformation and Real Estate Universiti Teknologi MalaysiaJohor BahruMalaysia Centre for Environmental Sustainability and Water Security(IPASA) Research Institute for Sustainable Environment(RISE)Universiti Teknologi MalaysiaJohor BahruMalaysia Institute of Computer Science University of OsnabrueckOsnabrueckGermany

Oil palm becomes an increasingly important source of vegetable oil for its production exceeds soybean,sunflower,and *** growth of the oil palm industry causes degradation to the environment,especially when the expansion of plantations goes *** sensing is a useful tool to monitor the development of oil palm *** order to promote the use of remote sensing in the oil palm industry to support their drive for sustainability,this paper provides an understanding toward the use of remote sensing and its applications to oil palm plantation *** addition,the existing knowledge gaps are identified and recommendations for further research are given.

关键词： Oil palm remote sensing monitoring agriculture mapping sustainability

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