【摘 要】
：
In this study,we have used four methods to investigate the start of the growing season(SGS) on the Tibetan Plateau(TP) from 1982 to 2012,using Normalized Difference Vegetation Index(NDVI) data obtaine
【出 处】
：
Journal of Geographical Sciences
论文部分内容阅读
In this study,we have used four methods to investigate the start of the growing season(SGS) on the Tibetan Plateau(TP) from 1982 to 2012,using Normalized Difference Vegetation Index(NDVI) data obtained from Global Inventory Modeling and Mapping Studies
其他文献
The Poyang Lake is one of the most frequently flooded areas in China. Understanding the changing characteristics of floods as well as the affecting factors is an important prerequisite of flood disast
Industrial wastewater discharge in China is increasing with the country′s economic development and it is worthy of concern. The discharge is primarily relevant to the direct discharge coefficient of e
This study presents an investigation of the scattering and backscattering properties of the particulates in three Chinese inland lakes(the Taihu Lake, the Chaohu Lake and the Dianchi Lake) based on in
As a major aspect of the ′China Model′, urbanization in China is being heatedly discussed in the Anglophone literature in the last two decades. By considering China′s urbanization as a ′testing ground
The key to studying urban sustainable development depends on quantifying stores, efficiencies of urban metabolisms and capturing urban metabolisms′ mechanisms. This paper builds up the metabolic emerg
What rural households think and what kind of strategies they take, the basic driving force in land use activities, contribute greatly to the increase of their own revenues, the development of agricult
中巴地球资源系列卫星(CBERS)由中国航天科技集团公司和巴西空间研究院联合研制,是中巴两国在航天科技领域合作的重要体现,被赞誉为"南南合作的典范",主要应用于国土、林业、水利、农情、环境保护等领域的监测,规划和管理。CBERS-04卫星配备有分辨率为5 m的全色、10 m的多光谱相机(PAN),20 m的多光谱相机(MUX),40 m/80 m的红外相机(IRS)以及分辨率为67 m的宽视场相机
Urban land cover has major impacts on a citys ecosystem services and the inherent quality of its urban residential environment. The spatio-temporal distribution of impervious surface area and green ar
提出一种新颖的基于视频的降雨量测量方法。首先根据雨图亮度变化特征检测雨滴;其次,为解决雨滴离摄像机距离信息未知情况下的雨滴尺寸估计问题,在雨滴成像光度模型中融入散聚焦因素,构建了基于亮度差和色彩张量响应特征的散聚焦雨滴判别方法;然后,根据透视成像关系计算聚焦雨滴的尺寸并根据气象学雨滴谱的定义来构建观测雨滴谱;最后,为抑制观测雨滴谱中的噪声,采用气象学Gamma模型拟合观测雨滴谱,并由模型参数计算降
基于光流场理论,提出一种由两幅条纹图像解调出物体变形相位的新方法。首先根据光流场理论,获得两帧连续图像之间的光流矢量场;然后运用双幅图像中初始图像的条纹频率与矢量场进行计算,获得物体的全场变形相位分布。模拟结果和实验结果表明,本文算法将直观的运动矢量场和变形相位的提取相联系,能够解调出物体变形相位信息,不需要相位解包络运算,过程简单方便,并且在条纹越密集处提取的变形相位信息越准确。本文方法为计算物