landsat 中文意思是什麼

Based on 2m contour of surveyed bathymetry from 1976 to 1999 and mean - high - tidal line distracted from remote sensing images acquired by landsat - 5 tm from 1976 to 2000 respectively, quantitative analysis about alluvion and erosion as well as the relationship between accretion of modern yellow river delta and the water and sediment discharge of yellow river is made, and the results indicate the mean - high - tidal level is more effective than 2m contour of the bathymetry. it is found that the accretion of modem yellow river delta is becoming less and less, what ' s more, erosion is even more than alluvion in some recent years. diaokou promontory has been eroded seriously since yellow river changed its course in1976

以一般高潮線反映現代黃河三角洲沖淤演變時，從1976年黃河改道清水溝流路入海到2000年，整個黃洞三角洲凈造陸201 . 5km ~ 2 ，淤積有逐漸變慢的趨勢，甚至出現凈蝕退的年份；刁口河嘴大量蝕退，蝕退速率開始快速，后來逐漸變慢；清水溝河嘴大量淤積，淤積速率開始迅速，后來逐漸變慢，甚至出現凈蝕退；清水溝河嘴南側到支脈溝一段岸線與刁口河嘴以西到灣灣溝一段岸線基本穩定。

In this paper, based on land use maps of 1976, 1988, 2003, which were interpreted from the landsat mss / tm / etm imageries, and the map of main road, with the buffer analysis tool in arcgis 8, we studied the land use and land cover change on the two sides of the main roads in xishuangbanna, then we studied the impact of population density and the topographic factor on road effects. during the study both the comprehensive land use dynamic degree model and the land use degree comprehensive index model are taken into account, we put forward a compensatory model ? “ amendatory comprehensive land use dynamic degree model ”

由於人類活動干擾強度加大，公路效應深度不斷擴展， 1976年為5km ， 1988年為7km ， 2003年達到11km ;受自然、社會條件的影響，不同路段的公路效應存在較大差異，甚至同一路段兩側效應也各不相同。 1976年至2003年，距公路不同距離范圍內的人口密度都在增加，且距離公路越近，人口數量密度越大、增長越快，人口分布有向公路兩側聚集的趨勢。選取人口密度為大、中、小三個樣區分別分析公路效應的范圍表明，人口密度

Multispectral data for bathymetry is often performed in relatively clear shallow waters, up to now, no one use multispectral data for bathymetry in estuary waters of yellow river, where the highest sediment concentration in the world has been observed. in another part of this thesis, multispectral data acquired by landsat - 5 tm and in situ data are used for bathymetry in estuarine waters of yellow river. statistical models based on one band and two bands of tm respectively are developed

利用兩期水深的比對可以揭示黃河水下三角洲的沖淤演變規律，但由於實測水深資料獲取較為困難，因而利用遙感來反演水深是一個重要的選擇，為此，本文在黃河口海現代黃河三角洲沖淤演變規律與遙感應用研究端走取兩個試驗區進行了多光譜遙感水深反演試驗，試驗結果表明，在極高泥沙濃度、較強水動力條件的黃河口海域，用多光譜遙感反演水深是可行的。

Dealing with remote sensing data of different time ( 1987, 1996 landsat tm, and 2000 china - brazil earth resource satellite ccd ) and using the gis technology, the dissertation extracts the changing information of the desertification. the dissertation makes a dynamic remote sensing analysis on the desertification of the research region, and discusses the temporal and spatial evolving law of the desertification

在技術上主要採用了1987 、 1996年的陸地衛星tm數據以及2000年中巴資源衛星1號ccd數據三個不同時相的遙感數據進行圖像處理，並利用gis較強的空間分析功能，從中提取研究區土地沙漠化的變化信息，同時與研究區的其他信息數據進行疊加分析，探討了研究區土地沙漠化的時空演化特點。

Dynamics of urban expansion in xi ' an city using landsat tm etm data

西安城市擴張及其驅動力分析

Vegetation indexes retrieval of entironment using landsat tm in xi ' an

西安市生態環境植被信息的遙感反演

Nasa - landsat - 7 20 year urbanization of deep bay near shenzhen, china

Nasa - landsat - 7后海灣鄰近深圳地區20年的都市化情況

A land cover changes analysis in the areas of development project by landsat data

基於遙感影像數據的建設項目區域土地覆被變化分析

Landsat soil survey

宇宙土壤甸

Analysis of main object lightness value in surrounding area of tarim basin based on landsat tm image

圖像的塔盆周邊地區主要地物亮度值分析

The landsat spacecraft orbits the polar regions of the earth at a height of 920 kilometers

地球資源衛星航天器以920公里的高度環繞地球的兩極地區運行。

Combining methods and diversity measures in multiple classifier systems for thematic classification of landsat tm images

影像分類領域多分類器線性組合方法及差異性度量研究

Correlation analysis of landsat tm data and its derived data, meteorological data and topographic data with the biomass of different aged tropical forests

不同齡組的熱帶森林植被生物量與遙感地學數據之間的相關性分析

After the introduction of the wavelet theory and the principle of wavelet - based image fusion, we test the radarsat and landsat images using gray - value algorithm

在對小波變換的基本理論和其用於融合的原理進行介紹之後，我們利用了灰度值選擇運算元針對radarsat和landsat圖像進行了相關實驗。

In this research, model of groundwater level distribution using remote sensing ( arglutm ) was established using landsat - 7 etm + image, by dint of practical work and field examination data

二是應用visualbasic將rs與gis結合起來，提出一種可以有效提高rs數據製作地下水埋深專題圖精度的方法。

Based on the research of intertidal flat topography measure at home and abroad, this article avoids some problems troublesome, such as the dependence of the station of tide gauging, precise match of images and so on. first, we monitor soil water content of intertidal flat through building correlation model between soil water content of intertidal flat and landsat tm data, then we analyse the correlation between soil water content and topography of intertidal flat, last, we extract topography of intertidal flat combining with gis

本文在總結國內外潮灘地形測量研究的基礎上，避開對潮位站的依賴和影像精配準問題，以江蘇大豐港堤附近淤泥質潮灘為研究區域，通過遙感方法建立潮灘土壤水分與tu光譜值的定量數學模型，提取潮灘土壤含水量信息，然後通過潮灘土壤水分與地形的定量關系，結合gis技術反演潮灘地形。

In one study, ted scambos of the national snow and ice data center in boulder, us, analysed five images taken by the landsat 7 satellite between january 2000 and february 2003

在一項研究中，美國國家冰雪數據中心（位於博爾德市）的特德?斯坎博斯對美國地球資源探測衛星7號在2000年1月和2003年2月之間拍攝的五幅圖像進行了分析。

The scientists used a variety of data from satellites to track the speed of the glaciers before and after the collapse of larsen b. in one study, ted scambos of the national snow and ice data center in boulder, us, analysed five images taken by the landsat 7 satellite between january 2000 and february 2003

在一項研究中，美國國家冰雪數據中心位於博爾德市的特德斯坎博斯對美國地球資源探測衛星7號在2000年1月和2003年2月之間拍攝的五幅圖像進行了分析。

Employing the satellite images of landsat - mss and landsat - tm and the integrated techniques of rs, gis, and gps, the authors, with maotiaohe river basin as a case, studied the process and driving factors of land use / cover changes since the beginning of 1970s, and modeled the possible land use / cover changes scenarios in the coming 10 years based on clue - s model, and then made an ecological evaluation on effect of the changes over the past 30 yeas as well as in the coming 10 years by using theory and method of landscape ecology. in this research, the authors, from the angle of international lucc studies, threw much light on the land use / cover changes in the basin and also the derived ecological and environmental problems such as karst rocky desertification

本文以位於貴州中部的貓跳河喀斯特流域為對象，以1973年的mss和1990年、 2002年的tm等衛星影像為數據源，運用rs - gis - gps集成技術，研究了該地區在過去三十年間土地利用/覆被變化的過程、驅動機制，運用clue - s模型模擬、預測了該流域在不同目標情景模式下的土地利用/覆被變化，並運用景觀生態學的方法對貓跳河流域過去三十年間的土地利用/覆被變化以及未來不同情景模式下的土地利用/覆被變化的生態效應進行了評價。

Investigation using remote sensing ( rs ) technology can breakthrough the limits of traditional methods, make full use of its capability of integration, visualization, rapidity and vast - dimensions analysis, and get better results the paper takes the up - to - date landsat - 7 etm + data, which is the most widely used, and quickbird data, which has the highest resolution nowadays, and according the features of the data and landslides, processes the quickbird data with 1 : 10 000 dem orthophoto correction and the landsat - 7 etm + data as follows : ( 1 ) selecting optimal spectrum band : selects 753 bands as the optimal bands ; ( 2 ) image intensifying : selects the principle components processing method on the basis of comparing several image intensifying methods ; ( 3 ) rigour geometric direction : corrects the geometric distortion of the map ; ( 4 ) image fusion : mainly takes his space transform fusion and resolution fusion method, and acquires maps with higher spectrum resolution as well as space resolution. after that, the visual effect of the image has been enhanced, and the interpretation precision

採用遙感技術，可以突破傳統調查方法的限制，發揮其宏觀、綜合、直觀、快速的特點，取得更好的效果。論文選取目前應用最廣的陸地衛星最新系列landsat - 7etm +數據和空間解析度最高的商業衛星quickbird數據作為主要的數據源，根據數據的特點及滑坡災害應用特徵，對quickbird遙感數據則基於1 ： 10000dem進行了正射校正，對etm +遙感數據進行了波段優選，選取了753作為最佳組合波段；圖像增強，通過各種增強處理方法的效果對比，選擇主成分分析法對圖像進行增強；幾何精校正，糾正圖像的幾何變形；影像融合，主要選取了效果較好的his空間變換融合和解析度融合，得到的圖像既具有較高的光譜解析度，同時也具有較高的空間解析度。經過上述數字處理，較好地改善了圖像的視覺效果，提高了圖像解譯的精度。