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landsat

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landsat n.(由美國政府發射的)地球資源衛星。

n. (由美國政府發射的)地球資源衛星。 “landsat 1“ 中文翻譯：   地球資源技術衛星1號; 陸地衛星1號“landsat 7“ 中文翻譯：   七號測地衛星“landsat band“ 中文翻譯：   衛星頻帶“landsat coverage“ 中文翻譯：   陸地衛星視界“landsat image“ 中文翻譯：   地球衛星圖象; 陸地衛星圖象; 陸地衛星影像“landsat imagery“ 中文翻譯：   陸地衛星成象“landsat images“ 中文翻譯：   地球資源衛星像片“landsat mss“ 中文翻譯：   陸地衛星多波段掃描儀系統“landsat orbit“ 中文翻譯：   陸地衛星軌道“landsat photograph“ 中文翻譯：   宇宙照片“landsat rbv“ 中文翻譯：   陸地衛星反束光導管電視攝象機系統“landsat sensor“ 中文翻譯：   陸地衛星傳感器“landsat survey“ 中文翻譯：   宇宙探查“landsat with etm“ 中文翻譯：   地球資源衛星增強性專題制圖儀“landsat with mss“ 中文翻譯：   地球資源衛星多光譜掃描儀“landsat with tm“ 中文翻譯：   地球資源衛星專題制圖儀“landsat-4“ 中文翻譯：   陸地衛星４“landsat data reception“ 中文翻譯：   陸地衛星數據接收“landsat discriminant analysis image“ 中文翻譯：   陸地衛星判別分析圖象“landsat image processing“ 中文翻譯：   地球衛星圖象處理“landsat information system“ 中文翻譯：   大地衛星信息系統“landsat principal component image“ 中文翻譯：   陸地衛星主分量圖象“landsat soil survey“ 中文翻譯：   宇宙土壤甸“landsat solar azimuth“ 中文翻譯：   陸地衛星太陽方位角“landsales“ 中文翻譯：   礦山當地售煤“landsacpe news“ 中文翻譯：   地景保育通訊

landscape

Analyzing spectral features of field measurements and landsat tm image , the best time of cotton identification using remote sensing is confirmed . and a spectral information based cotton discrimination model using landsat tm image on a large scale was developed . the model is simple , more accurate and suitable for operational work which was evaluated by mathematics analysis and field experiment 通過對各時期棉花及主要農作物的地面測量光譜與tm圖像光譜特征的差異性及規律性分析，確定試驗區棉花識別的最佳時相為9月；通過對最佳時相的tn圖像中各種農作物光譜特征的分析研究，建立了大尺度的棉花遙感識別模型。

Changling county , belongs to the typical region of farming - pastoral zone in northeast china and is chosen as a case study area in this paper . base on the interpretation of the landsat - tm data ( with two digital images taken in 1980 and 2000 , respectively ) , the landscape structure was studied by analyzing patch - size , spatial pattern , and other index to show the changing feature of landscape pattern 本文采用landsat - tm影像為基礎數據源，基于遙感和gis技術，應用景觀空間格局指數和景觀類型斑塊等級結構等景觀生態學指標，分析了1980年到2000年間地處東北農牧交錯帶的長嶺縣的景觀結構及其變化特征。

Abstract : on the basis of the interpretation of landsat tm pictures , incorporated with the referencing of the predecessors ' literatures and field investigation data , and also by means of computer technique and optical image processing , this paper makes an analysis of water resource in lunan area , more over , the author makes some important plans to developping and utilizing water resource in lunan area 文摘:以水量平衡理論為依據，采用不同時相的tm圖像數據及多元信息復合技術對魯南地區沂源、沂水、沂南三縣(簡稱“三沂” )的地下水資源、地表水攔蓄條件進行調查分析，在此基礎上，提出了區域水資源綜合開發利用配置方案。

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 采用遙感技術，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 +數據和空間分辨率最高的商業衛星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征，對quickbird遙感數據則基于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空間變換融合和分辨率融合，得到的圖像既具有較高的光譜分辨率，同時也具有較高的空間分辨率。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。

It study carefully the distortion of the remote sensing imagery , the rectification of the radiant quantity , the rs image strengthen and the color fusion . based on these achievements above , we do experiment on the differential rectification , the rs image fusion , the object determining and the exchange for the different format data , propose the plan and flow chart of the terrain map rectification by the rs imagery . we demonstrate the method for the target location and the direction outside by the rs imagery and how to select the reference point and read the information of the rs imagery 本文闡述了利用航天遙感影像進行1 : 25萬地形圖數據庫更新的必要性和可行性，在對spot和landsat遙感影像特性進行分析的基礎上，對航天遙感影像的系統變形、輻射量校正和影像增強與彩色融合等內容進行了認真研究，并在此基礎上對航天遙感影像數字微分糾正、影像融合、地物判讀、數據庫數據格式轉換、基于遙感影像的地形圖修測等方法進行了具體試驗，提出了利用遙感影像進行地形圖修測的具體方法和作業流程。

Estimation of the fraction of green vegetation using remote senseing data may be a more efficient approach . in this paper , based on the fcd mapping model , the fraction of green vegetation in beijing mountain area was calculated using the landsat - tm data ( with two digital images taken in 1994 and 1999 , respectively ) 探討利用遙感資料估算大面積的植被覆蓋率的方法已成為當前建立全球及區域氣候、生態模型的基礎工作之一，而且準確、快速地獲取植被覆蓋狀況信息也是區域生態恢復和建設的關鍵與重點。

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 本文以位于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,并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。

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，然后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。

Based on two satellite images from landsat tm / etm + , land use types are measured through the method of maximum likelihood classification . land use change areas are determined and extracted by using post - classification comparison . for further study on the time and spatial characteristic of land use change in longhai county from 1989 to 2000 , the mathematical methodologies are established 因此本文利用1989年和2000年兩期的landsattm / etm遙感圖像，采用最大似然法的監督分類完成對兩個時相各土地利用類型的測量，基于分類后比較法發現和提取土地利用變化信息。

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 ” 由于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，但由于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。

3 ) linear features extraction and measurement in cotton area estimation using landsat tm image linear features , such as roads and irrigation channels , make a result of about 13 % errors in cotton area monitoring using landsat tm images in northwest china ' s xinjing province 經數學方法與實際應用驗證，該模型簡單、操作方便并且識別棉花的準確程度較高，同時加強了圖像解譯速度，適應于運行系統。 3 )棉花遙感監測面積提取中線狀地物扣除的研究為提高棉花面積提取精度，完善棉花遙感監測運行系統。

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 在技術上主要采用了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，并利用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。

The northern part of ailao mountain , located in the middle of yunnan province , was selected as study area . based on three landsat mss / tm / etm satellite images , as well as “ 3s ” technology combining with the method of mathematical statistics , the objective of this paper was to analyze the law of spatial ( gradient , slope orientation and elevation ) and temporal changes in land use / land cover on the northern part in the periods of 1974 1987 and 1987 2003 . and analyzes land use / land cover change character in nature reserve and its meighbour region within the confine of the study area 本文選擇滇中哀牢山北段作為研究區域,以1974年mss影像, 1987年tm影像和2003年etm影像為主要數據源,運用“ 3s ”技術,并結合統計分析,探討研究區1974 1987年、 1987 2003年間土地利用的時間和空間(坡度、坡向、海拔)變化規律,并分析了研究區內的自然保護區及其周邊土地利用/覆蓋變化特征,以期為山地土地資源的可持續利用和生態保護等方面提供依據。

For the operationally cotton monitoring using remote sensing in china ministry of agriculture , a sampling method for linear features extraction and measurement to reduce errors was developed by the authors . the theory approaches and field experiment are introduced in this paper and the results show the method can efficiently improve the results of cotton area estimation using landsat tm 分析了線狀地物對作物面積提取精度影響的機理，進行了線狀地物扣除實驗方法的技術路線與實施過程研究，經實際驗證該方法可消除絕大部分線狀地物對棉花面積提取精度產生的影響，提高了棉花面積的提取精度。

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于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 new algorithm has been tested on various multispectral and panchromatic satellite remote sensing images on ikonos , quickbird , spot , landsat tm / etm + for different areas , and has been compared with some other typical image fusion methods 新融合算法被用于不同地區的ikonos 、 quickbird 、 spot 、 landsattm / etm +等多種多光譜/全色衛星遙感圖像的融合實驗,并與其它一些典型的圖像融合算法進行了比較分析。

The proportion based on the assistant data is used as the prior probability to replace the prior value in the conventional supervised classification ; the farther iterative prior probability is applied into classifying progress on landsat tm image 由輔助數據中計算各類別面積比率作為先驗概率,替換傳統監督分類中的先驗值,并進一步對先驗概率進行迭代,最后利用改進的先驗概率對landsattm影像進行分類實驗。