1、Uuit1 What is Geomatics? （什么是测绘学）Geomatics Defined（测绘学定义）Where does the word Geomatics come from?（Geomatics测绘或地球空间信息学，这个名词是怎么来的呢？）GEODESY+GEOINFORMATICS=GEOMATICS or GEO- for earth and MATICS for mathematical or GEO- forGeoscience and -MATICS for informatics. （大地测量学地理信息学GEOMATICS 测绘学 或者 geo 代表地球，mat
2、ics 代表数学，或者 geo 代表地球科学，matics 代表信息学）It has been said that geomatics is many things to many people.（据说测绘学这个词对不同的人有不同的理解）The term geomatics emerged first in Canada and as an academic discipline; it has been introducedworldwide in a number of institutes of higher education during the past few years, mo
3、stly by renamingwhat was previously called “geodesy” or “surveying”, and by adding a number of computer science-and/or GIS-oriented courses.（这个术语【term 术语】作为一个学科【academic discipline 学科】第一次形成【emerge】于加拿大；在过去的几年里被全世界的许多高等教育研究机构所熟知，通常是以前的“大地测量学”或“测量学”在引入了许多计算机科学和 GIS 方向【或“基于 GIS”】的课程后重新命名的。 ）Now the ter
4、m includes the traditional surveying definition along with surveying steadily increasedimportance with the development of new technologies and the growing demand for a variety of spatiallyrelated types of information, particularly in measuring and monitoring our environment.（随着新技术的发展和不断增长的对空间关系的信息类型
5、的需求，尤其是在测量和监测我们的环境方面【环境监测】 ，现在，传统测量学定义连同【along with】日益【steadily 稳定的】增长的测量的重要性一起包含在这个术语里了。 【逗号后面的句子修饰 demand】 ）Increasingly critical are areas of expanding populations, appreciating land values, dwindling naturalresources, and the continuing stressing of the quality of our land, water and air from hu
6、man activities.（日益增长的危机来自人口扩张，地价上涨，资源紧缩【紧张】 ，还有由于人类活动引起的土地、水、空气质量的持续的压力【由人类活动带来的土地、水、空气质量的恶化】As such, geomatics bridges wide arcs from the geosciences through various engineering sciences andcomputer sciences to spatial planning, land development and the environmental sciences.（这样，测绘学在地球科学，各种工程学【eng
7、ineering sciences 工程学】 ，计算机科学，空间规划，土地开发和环境科学相互之间架起了广泛的桥梁。 ）Now the word geomatics has been adopted by several international bodies including the InternationalStandards Organization(ISO),so it is here to stay.（现在 geomatics 这个词已经被包括 ISO【国际标准化组织】在内的数个国际机构【international bodies】所采用，因此它就这样被普遍接受【be here to
8、 stay 习惯用语“被普遍接受 ”】The term “surveyor” is traditionally used to collectively describe those engaged in the aboveactivities. （surveyor 这个词按惯例用来总指（这换成“总称 ”较好） 【collectively 全体的】那些从事上述活动的人。 ）More explicit job descriptions such as Land Surveyor, Engineering Surveyor or Hydrographic Surveyorfor example,
9、are commonly used by practitioners to more clearly describe and market their specializedexpertise.（更具体的 【explicit 清楚的、直接的】工作如土地测量员、工程测量员和水道测量员，一般【commonly一般地】被业内人士【practitioners 从业者】用来更准确的描述他们的专门技术。 【直译为：更清楚的工作描述就如如土地测量员、工程测量员和水道测量员，一般被从业者用来更准确的描述他们的专门技术。 】 ）The term geomatics is a recent creation t
10、o convey the true collective and scientific nature of theserelated activities and has the flexibility to allow for the incorporation of future technologicaldevelopments in these fields.（geomatics 这个术语是个新词，表达【convey 传达】了实体集合和它们相关联【related】的活动的自然科学，并使这些领域的未来技术发展的结合【incorporation 结合】成为可能。【flexibility 弹
11、性、机动性】 ）Adoption of the term also allows a coherent marketing of the profession to industry and schools ona worldwide basis. （这个术语的采用同时也在全世界范围里为行业 【industry 】里和学校建立了【allow 允许了】一个一致的【coherent】专业市场）As a result, both course and award titles in the traditional Land Surveying sector at many of the worlds
12、 leading universities are being changed to “Degree in Geomatics”. （结果，世界上许多一流大学的传统的测量专业【部门】的无论是课程还是授予资【授予学位名称】格都改为“测绘学位” 【Degree in Geomatics】的了）This does not suggest the demise of the term “surveyor” and graduates will still practice as landsurveyors or photogammertrists, etc. as appropriate to the
13、ir specialization.（这并不意味着“surveyor”这个词的消亡，测绘毕业生还将从事适合他们专业的【as appropriate to their specialization】土地测量员、摄影测量员及其他【ect.】的工作）In the last decade, there has been dramatic development and growth in the use of hardware and softwaresolutions to both measure and process geo-spatial data.（在过去的十年中，在应用硬件和软件的方法【
14、solution 解决方法】来测量和处理地球空间数据工作时 有着戏剧性的发展和增长）in the use of 在使用时This has created and will continue to create new areas of application, with associated job opportunitiesfor suitably qualified graduates. （创造并将继续创造新的应用 【application 】领域，并为合适的、合格【qualified 有资格的】的毕业生提供相关的【associated】 工作。 ）As a result, the rol
15、e of the “surveyor” is expanding beyond traditional areas of practice, as describedabove, into new areas of opportunity.（结果是， “surveyor”的角色大大超越传统实践领域如前面所述的领域，进入到新的【opportunity 机会、时机】的领域。 ）In addition, recent advances in the technology of data collection and processing have blurred theboundaries of p
16、ractice and activity between what were previously regarded as related but separate areas.（另外，最近的数据采集和处理技术的发展模糊了以前被认为有联系却分离的领域的【实践的活动的 practiceand activity】界限）Such developments are forecast to continue and will create new career paths for graduates whoseeducation and training is broadly based and of
17、a high academic standard.（可以预见【forecast】 ，这种发展继续并将为涉猎广泛、学识一流的【broadly based and of a high academic standard】毕业生创造新的事业。 ）To enable graduates to take full advantage of these developments, significant changes in educationand training are required.（为了使毕业生能充分利用【take full advantage of】这些发展，教育和训练的重大改革【sign
18、ificant changes】成为必需的）Academic and professional institutions are also responding, in part, by adopting the term geomaticsboth as a course and as an award title. （学院的和专业的机构也作出反应，部分地，采用术语“geomatics”作为一门课程和一项授予资格【授予学位名称】 。 ）A working definition of geomatics, which reflects current thinking and predicte
19、d change, is:（测绘学的一个现在使用的反映了当前的思想和对未来的预期的定义是：）The science and technology of acquiring, storing, processing, managing, analyzing and presentinggeographically referenced information(geo-spatial data ).（获取、处理、存储，分析和上呈【presenting呈现】地理参考信息（地理空间信息）的科学和技术。 ）This broad term applies both to science and techn
20、ology, and mapping, geodesy, satellite positioning,photogrammetry, remote sensing, geographic information systems(GIS), land management ,computersystems, environmental visualization and computer graphics.（这个广泛的术语应用于科学和技术，以及制图、大地测量学、卫星定位、摄影测量学、遥感、地理信息系统、土地管理、计算机系统、环境可视化和计算机制图等领域）Several terms such as
21、 “geomatics” ,“geomatic engineering,” and “geoinformatics” are now incommon use pertaining to activities generally concerned with geographic information.（现在一些术语如“测绘学” ， “测绘工程”和“地学信息学”共同应用于某些活动中专属于【pertain to】通常【generally】涉及【concern with】地理信息的活动。 ）These terms have been adopted primarily to represent
22、the general approach that geographic informationis collected, managed, and applied. （这些术语起初被采用用来表示地理信息的采集、管理和应用的总体的方法。 ）Along with land surveying, photogrammetry, remote sensing, and cartography, GIS is an importantcomponent of geomatics. （连同土地测量学，摄影测量学，遥感和制图学一起，GIS 也是测绘学中重要的一个组成部分。 ）Branches of Geo
23、matics（测绘学分支）Data acquisition techniques include field surveying, global positioning system(GPS), satellitepositioning, and remotely sensed imagery obtained through aerial photography and satellite imagery.（数据获取技术包括普通野外测量，GPS 测量，卫星定位和遥感图像获取，通过航空摄影和卫星成像）It also includes the acquisition of database ma
24、terial scanned from older maps and plans and datacollected by related agencies.（它还包括数据库资料的获取通过扫描就有地图和设计图，还有有关机构收集的数据。 ）Data management and process are handled through the use of computer programs for engineering design,digital photogrammetry, image analysis, relational data base management, and geog
25、raphic informationsystems (GIS). （通过计算机程序，数据管理和处理 应用于工程设计，数字摄影测量 【digital photogrammetry】 ，图像分析，相关资料库的管理和 GIS。 ）Data plotting(presentation) is handled through the use of mapping and other illustrative computerprograms; the presentations are displayed on computer screens(where interactive editing can
26、 occur)and are output on paper from digital plotting devices.（数据成图【数字成图】是通过制图和其他直观的计算机程序【illustrative 直观的、说明性的】进行的；其表达显示在计算机屏幕上（交互式编辑处理） ，也可以通过数字绘图仪输出到纸上。 【handle 操作、处理】 ）Once the positions and attributes of geographic entities have been digitized and stored in computermemory, they are available for
27、 use by a wide variety of users.（一旦地理实体的位置和属性被数字化并被存储进计算机存储器，就可以有效的【available 有效的、可用的】为广泛的各种的使用者所用）Through the use of modern information technology(IT), geomatics brings together professionals in thefollowing disciplines: surveying, mapping, remote sensing, land registration, civil and marineenginee
28、ring, forestry, agriculture, planning and development,geology, geographical sciences,infrastructure management, navigation, environmental and natural resources monitoring, and computerscience.（通过现代 【估计 moderm 应该是 modern】信息技术，测绘学将以下学科的专业人员整合到一起：测量学、制图学、遥感、国土注册、土木【civil 民用的】工程和海洋工程，林业，农业，决策与发展，地质学，地理科
29、学，基础设施【infrastructure】管理，导航，环境与自然资源监测和计算机科学。 ）Other Definitions of Geomatics（测绘学的其他定义）As defined by the Canadian Institute of Geomatics in their quarterly journal “Geomatica”:Geomatics is a field of activities which, using a systemic approach, integrates all the means usedto acquire and manage spati
30、al data required as part of scientific, administrative, legal and technicaloperations【业务】 involved in the process of the production and management of spatial information.（加拿大测量学会【Canadian Institute of Geomatics】在他们的季刊“地球空间信息学”中这样定义：测绘学是利用系统的方法，为生产和处理【management】科学的，行政的，法律的【legal】和技术的业务【operations】所需
31、的空间信息，将所有获取和管理空间信息的方法【means】整合在一起的活动领域。 ） 【as part of 作为的一部分，这里不翻译出来】The definition of Geomatics is evolving. A working definition might be “the art, science andtechnologies related to the management of geographically-referenced information.” Geomatics includesa wide range of activities, from the ac
32、quisition and analysis of site-specific spatial data inengineering and development surveys to the application of GIS and remote sensing technologies inenvironmental management. It includes cadastral surveying, hydrographic surveying, and ocean mapping,and it plays an important role in land administr
33、ation and land use management .（测绘学定义在发展。现行的一个定义是“涉及工艺、科学和技术的地理信息的处理” 。测绘学或地球空间信息学包括一个广泛的生产活动从工程学和发展了的测量学领域中特殊点的空间数据的获取和分析 到 GIS 和遥感技术在环境管理中的应用。它包括地籍测量、水道测量和海图测量，在土地管理和土地使用中扮演重要的角色。 ）Geomatics is the modern scientific term referring to the integrated approach of measurement, analysis,management, sto
34、rage and display of the descriptions and location of Earthbased data, often termedspatial data. These data come from many sources, including earth orbiting satellites, air and sea-bornesensors and ground based instruments. It is processed and manipulated with state-of-the-art informationtechnology u
35、sing computer software and hardware. It has applications in all disciplines which dependon spatial data, including environmental studies, planning, engineering, navigation, geology andgeophysics, oceanography, land development and land ownership and tourism. It is thus fundamental toall the geoscien
36、ce disciplines which use spatially related data .（测绘学是一个现代科学术语，用以表示测量、分析、管理，存储和显示基于地球信息，经常被称为空间数据【often termed spatial data 】数据的描述和位置的集成方法。这些数据来自各种数据源，包括地球轨道卫星，空载和舰载传感器及地面仪器。利用计算机软件和硬件，借助现代【state-of-the-art】信息技术。它的应用覆盖所有依赖空间数据的学科，包括环境研究，规划，工程学，导航，地质和地球物理学，海洋学，土地开发，土地经营和旅游学。它因而成为所有使用空间数据地球科学学科的基础。 ）f
37、rom the School of Geomatic Engineering, Univ. of New South Wales（摘自新南威尔士大学测绘【或地球空间信息学】工程学院）Geomatics is concerned with the measurement, representation, analysis, management, retrieval anddisplay of spatial data concerning both the Earths physical features and the built environment. Theprincipal disc
38、iplines embraced by Geomatics include the mapping sciences, land management, geographicinformation systems, environmental visualization, geodesy, photogrammetry, remote sensing andsurveying.（测绘学是测量、表示，分析，处理，重获和显示关于地球物理特征和环境的空间数据的科学。其包括的主要学科有制图学，土地管理，GIS，环境可视化，大地测量学，摄影测量学，遥感和测量学。 ）from the Dept. of G
39、eomatics at Univ. of Melbourne（摘自墨尔本大学测绘学系【或者地球空间信息学系】Geomatics comprises the science, engineering, and art involved in collecting and managinggeographically-referenced information. Geographical information plays an important role in activitiessuch as environmental monitoring, management of land and
40、 marine resources, and real estate transactions.（测绘学包括自然科学，工程学和工艺或【技术】学；对地理信息的收集与管理。地理信息在环境监测，陆地和海洋资源管理，以及房地产交易【real estate 房地产，transaction 交易】中扮演重要角色。from the Dept. of Geodesy and Geomatics Engineering at UNB（摘自加拿大纽布朗斯 维克大学 测量与大地测量学系）The science of Geomatics is concerned with the measurement, repre
41、sentation, analysis, management,retrieval and display of spatial information describing both the Earths physical features and thebuilt environment. Geomatics includes disciplines such as :Surveying, Geodesy, Remote Sensing this is an advantage ofinternal-focus telescopes for stadia work.（内调焦望远镜因此被发明
42、 【construct 建立、创立】 ，C 为或近似为 0；这是内调焦望远镜在视距测量中的一个优点。 ）Most instruments now used for stadia are equipped with internal-focusing telescopes.（现在大多数视距仪器都使用内调焦望远镜）Applications of tacheometry include traversing and leveling for the topographic surveys, location of detailsurveys, leveling and field completio
43、n surveys for the topographic mapping, and hydrographic mapping.（视距测量的应用包括地形测量【topographic survey】中的导线测量 【traversing】和水准测量【leveling】工作，细部测量【detail survey 】中的定位，绘制地形图工作中的水准测量和野外完全化测量，以及水道测图）The relative precision is 1:1000 to 1:5000.（其相对精度为 1:1000 到 1:5000）Stadia is a form of tacheometry that uses a
44、telescopic cross-hair configuration to assist in determiningdistances.（视距仪是视距测量的一种形式，利用望远镜的十字丝结构帮助测距）A series of rod readings is taken with a theodolite and the resultant intervals are used to determinedistances. （一系列的标尺读数由经纬仪测出，并且籍此而得到视距间隔，用来确定距离【resultant由此产生的】 ）Electronic Distance Measurement(EDM
45、) （电子测距仪）The Electronic Distance Measurement(EDM) was first introduced in 1950s by the founders ofGeodimeter Inc.（电子测距仪的概念是由 Geodimeter【“光电测距仪”商标名】公司的创始人在20 世纪 50 年代引入的。 ）The advent of EDM instrument has completely revolutionized all surveying procedures, resulting in achange of emphasis and techniq
46、ues.（EDM 测量手段的出现【advent】是对所有测量手段的完全的革命【revolutionized 革命化的】 ，导致【result in】了一场技术革命【change】和侧重点的改变。 【emphasis侧重点】 ）Distance can now be measured easily, quickly and with great accuracy, regardless of terrain conditions.（现在距离可以被很容易、快速和精确的测量，而又不受地形【terrain】影响。 ）EDM instruments refer to the distance measu
47、rement equipments using light and radio waves. （EDM 是利用光波和无线电波测距的设备【refer to 译为“是” 】 ）Both light waves and radio waves are electromagnetic.（光波和无线电波都是电磁波【electromagnetic电磁的】 ）They have identical velocities in a vacuum (or space) to 299,792.4580.001km/sec.（它们在真空中都有一样的速度 299,792.4580.001km/sec）These ve
48、locities, which are affected by the airs density, are reduced and need to be recalculated in theatmosphere. （它们的速度，由于会收到空气密度的影响而降低，在大气中需要重新计算【recalculate】 ）The basic principle of EDM instruments is that distance equals time multiplied by velocity.（EDM 的基本原理是距离等于时间乘速度）Thus if the velocity of a radio
49、or light wave and time required for it to go from one point to another areknown, the distance between the two points can be calculated.（这样，如果无线电波或光波的速度和其从一点到另一点所需的时间已知了，两点之间的距离就可以计算出来）The EDM instruments may be classified according to the type and wavelength of the electromagneticenergy generated or according to their operational range.（可以依照产生 【generate 】的电磁能量【电磁波】的类型和波长或根据它们的运作范围【工作范围】给 EDM 分类。 ）EDM instruments use three different wavelength bands: (1)Microwave systems with range up to 150km,wave length 3 cm, not limited to line of sight and unaffected by visi
