查询词典 dem

The RS and GIS information of eachpixcl can be extracted after the remote sensing image having been calibrated is superimposed onthe models of DEM of estimation region.

将校正后的遥感图像叠合到估测区域的DEM模型上，有效提取每一像元对应的遥感和GIS信息。

According to the typical users requirement, some kinds of spatial analysis functions based on the DEM terrain data have been realized in the system. During the realization process, the extension of the module is taken into account.

针对各种典型的空间分析需求，设计并实现了多种基于DEM地形数据的空间分析计算工具，同时考虑了模块的扩展能力。

The results obtained in the paper supply not only a new approach for evaluating the accuracy of LoD model but also a science base for selecting feasible resolution of simplify DEM.

研究成果为评价LoD模型精度提供新的方法，也为简化DEM模型时选择适宜的分辨率提供科学依据。

DEM is a powerful tool for landform interpretation, and also an important method to express geomorphology quantitively.

DEM数字高程模型，是地貌解译有力的辅助工具，同时也是对地形地貌分析研究进行量化表达的一个重要手段。

It is suggested that the appropriate grid size of DEM must be determined according to the required accuracy of flood forecasting.

这样如何选择合适的DEM分辨率，满足实际洪水预报要求成为一个值得研究的问题。

Therefore, the detection of gross error in DEM has been becoming the focus that people greatly concern for.

而在DEM生产中则需从误差产生和扩散的每个过程入手，采用一定的方法来削弱误差

Based on Digital Elevation Model Data Space Analysis Technique, Yarlung Zangbo River drainage area is selected to be analyzed quantitatively to its landform and physiognomy by new obtained high precision SRTM DEM data. Typical physiognomy parameter of Yarlung Zangbo River drainage area is picked up economically, and a series of physiognomy analysis theme figures such as physiognomy highness, landform grade, slope direction and hypsography have been generated, which have been discussed and analyzed primarily. Profitable supplement has been made to new construction study of physiognomy boundary strap in the south of Tibetan Plateau.

本文基于数字高程模型数据空间分析技术，利用最新获取的高精度的SRTM DEM数据，选取雅鲁藏布江流域进行定量的地形地貌分析，系统提取了雅鲁藏布江流域典型的地貌参数，生成了一系列地貌分析专题图如地貌高程图、地形坡度、坡向图以及地形起伏度等，并进行了初步的讨论分析，对我国青藏高原南部地貌边界带的新构造研究做了有益的补充。

A method for estimating channel cell cross-section size based on the DEM and the remote sensing imagines of the basin is also proposed, which solves the inapplicability of physically based distributed hydrological model in many basins.

流溪河模型还提出了一整套基于DEM及遥感影像对流域进行单元划分及对河道单元断面尺寸进行估算的方法，解决了目前在大部分流域不能应用分布式物理水文模型的难题。

Based on DEM data and by using GIDS method as the interpolation formula, it is derived that there is a latitudinal distribution of annual precipitation, and the precipitation is closely related to landforms.

空间分析是以DEM数据为基础，采用梯度距离平方反比法作为差值公式，得出整个流域的年降水量呈纬向分布特征，降水量的大小与地形分布有着十分密切的关系。

The grid DEM is isotropy, which means that the status between center point and its eight neighbor points are the same.

在针对研究区进行地学分析的基础上，对基于栅格DEM的分析算法进行了详尽的研究和探讨。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。