terrain undulation

Research of the influence of terrain undulation on the aeroplane location and its correction;

飛行器定位中的地形起伏影響及修正方法研究

Then,it researchs the methods to revise the impact of terrain undulation,and presents the arithmetics.

地面高程起伏對機載雷達成像定位影響較大,要實現飛行器的精確定位,必須修正地形起伏的影響。

Due to the influences of local topographical factors and terrain inter-shielding, calculation of DSR quantity over rugged terrains is very complex.

基于數字高程模型(DEM)數據和氣象站觀測資料建立了起伏地形下太陽直接輻射分布式計算模型,模型充分考慮了地形因子(坡向、坡度、地形相互遮蔽)對起伏地形下太陽直接輻射空間分布的影響;以1km×1km分辨率的DEM數據作為地形的綜合反映,計算了起伏地形下黃河流域1km×1km分辨率太陽直接輻射的空間分布;深入分析了起伏地形下太陽直接輻射受地理、地形因子影響的變化規律。

Differing greatly from single-phase flow,multiphase flow will exhibit special hydraulic characteristics due to the slip between phases,especially for the pipeline in hilly terrains.

塔里木油田塔中401計量站至塔中四聯合站輸送管道(塔四聯管道)累計起伏高度超過300m,起伏地形造成油氣混輸非常困難。

An analysis is made to study the factors influencing operational cost of pipeline and compressor station in the long-distance natural gas transmission pipeline over hilly terrain.

通過對起伏地形天然氣長輸管道系統中影響管道和壓縮機站運行費用的各種因素的分析,結合起伏地形的特殊性,以輸氣管道終值費用最小為目標函數,加以水力、熱力、流態等約束條件,建立了起伏地形天然氣長輸管道優化運行數學模型,并利用懲罰函數法對模型進行求解。

Using the DEM(digital elevation model) data of 1km1km resolution as input and giving an all-sided consideration on factors influencing direct solar radiation(DSR),a distributed model for calculating DSR over rugged terrains was developed,and monthly DSR with the resolution of 1km (1km) over the rugged terrains of China was gen.

基于1km×1km分辨率的數字高程模型(DEM)數據,全面考慮了地形因子對太陽直接輻射的影響,實現了實際起伏地形下我國太陽直接輻射的分布式模擬,計算了我國范圍內1km×1km分辨率1—12月氣候平均太陽直接輻射的空間分布。

Using DEM data of Chongqing, the distributions of direct and diffuse radiation over rugged terrains were simulated.

本文利用重慶及其周邊地區的日射站和常規氣象站水平面觀測資料，建立不同時空尺度的太陽輻射估算模型；依據坡地直接輻射和散射輻射機理，以地理信息系統為數據處理平臺，建立起伏地形下太陽輻射分布式估算模型；根據重慶1：25萬DEM數據，對重慶實際復雜地形下太陽直接輻射和散射輻射進行了數值模擬，為起伏地形下輻射估算及其他地表氣象要素的空間擴展提供有益的嘗試。

Based on micro scale DEM datum, optimum size of analysis windows of relief, which is 5 km×5 km, is defined by means of windows analysis and sample statistical method.

基于全國 1:10 0萬的柵格數字高程模型 ( DEM)數據 ,在 ARC/ INFO的 GRID模塊支持下 ,利用窗口分析方法 ,經過采樣統計 ,確定中國水土流失地形起伏度的最佳分析窗口大小為 5 km× 5 km;基于 5 km× 5 km的分析窗口 ,提取了中國水土流失地形起伏度 ,完成了中國水土流失地形起伏度制圖 ;最后對中國水土流失地形起伏度進行了適用性分析 ,并將其初步應用于中國潛在水土流失評

The relief amplitude is a macro terrain factor for the undulation level of a region and is a terrain indicator to show the variation of regional topography.

地形的起伏度是反映地形起伏的宏觀地形因子,是描述區域地形地貌變化的地形指標,在區域性研究中,應用DEM數據提取地形起伏度能夠快速、直觀地反映地形的起伏特征。

Relief is the largest relative elevation of unit area,which can reflect the relief of land surface;it\'s a quantitative index to describe geomorphologic forms.

地形起伏度,是單位面積內最大相對高程差,可反映地面相對高差,是描述地貌形態的定量指標。

A Study of the Geomorphologic Forms Classification Based on Relief

基于地形起伏度的地貌形態劃分研究

Having become simpler in form and of lower relief. Used of a landform.

地形起伏緩和的較為簡單的、起伏較平的。用于形容地形

The highway was contoured to the hills.

這條高速公路依丘陵地形起伏修筑。

The present relief of more than 1000 ft was due to excavation.

現在的地形起伏超過1000呎是削蝕作用造成的。

The Relief Degree of Land Surface in China and Its Correlation with Population Distribution;

中國地形起伏度及其與人口分布的相關性

The Impact of DEM Resolution on the Calculation of Height Anomaly Caused by Hypsography

DEM分辨率對計算地形起伏引起的高程異常的影響

A representation or description of the earth's topologic features above sea level, as on a map.

地形起伏圖在地圖上的高于海平面的地志的表現和描述

Study of CSAMT 2.5-dimensional Forward Modeling with Topography;

地形起伏條件下可控源音頻大地電磁法2.5維正演研究

The Characters of Relief Amplitude in the Severest Disaster Area of Wenchuan Earthquake and Its Association Analysis with the Eco-environmental Damage

汶川地震極重災區地形起伏度特征及其與生態環境受損關聯分析

Relief must not be so excessive.

地形不應起伏很大。

The terrain may be too steep or the trails too rugged.

地形也許過于陡峭或者路程過于起伏。

Seen from an airplane, the terrain curves and waves.

從飛機上看下去，地形蜿蜒起伏。

Elaborate Spatial Distribution of Precipitation of ChongQing on Terrain;

起伏地形下重慶降水精細的空間分布

2D INVERSION OF VES DATA UNDER ROLLING TOPOGRAPHY AND ITS APPLICATION

起伏地形垂直電測深二維反演及應用

The Research on 3-D Resistivity Forward and Inversion Algorithm on Undulate Topography;

起伏地形三維電阻率正演模擬與反演成像研究

The Elaborate Distribution of Direct Solar Radiation over Rugged Terrains in the Guizhou Plateau

貴州高原起伏地形下太陽直接輻射的精細分布

The Spatial Distribution of Astronomical Radiation under the Rugged Terrain in Shenzhen

起伏地形下深圳市天文輻射的空間分布

Study on Optimal Operation of Hilly Long-distance Natural Gas Transmission Pipeline

起伏地形天然氣長輸管道運行優化研究