geodesy

简明释义

英[dʒiːˈɒdɪsi]美[dʒiˈɑːdəsi]

n. [测] 测地学

英英释义

单词用法

同义词

反义词

例句

1.The concepts of frame and datum in geodesy are...

并讨论大地测量中框架和基准的概念。

2.As a basic subject from science of geodesy and geomatics, science of geographical information, architecture, and so on, the Surveying science plays an important role.

《测量学》是测绘科学、地理信息科学和土木建筑类专业的一门专业基础课，在课程体系中具有重要地位。

3.School of Geodesy and Geomatics: Solid Geophysics, Geodesy and Survey Engineering.

固体地球物理学、大地测量学与测量工程。

4.Modern geodesy, is used the stars to determine the earth a between meridian arc length.

近代大地测量中，是利用恒星来测定地球某两地间子午线弧长的。

5.Space geodesy, terrestrial deformation survey and focal mechanics resolution together confirm that the present-time principal compressing stress orientation is NW (NWW) -se (SEE).

空间与地面测量及震源机制解共同证实，东南沿海现时应力场主压应力方位为NW (NWW) - SE (SEE)。

6.In this paper, the basic models, principle and error sources of GPS applied to precise geodesy and astro-geodynamics are introduced systematically.

本文系统地介绍了GPS应用于精密测地和天文地球动力学的基本模式、原理和误差。

7.The main purpose of physical geodesy is to ascertain the outer Earth gravity field and geoid.

物理大地测量的主要目标是确定地球外部重力场和大地水准面。

8.A error analysis of the recurrent algorithm of Least Squares estimate for satellite geodesy is given in this paper.

本文就卫星测地情形，对最小二乘估计的递推算法进行误差分析。

9.The study of the Earth's shape and gravitational field is a key aspect of geodesy.

地球形状和重力场的研究是大地测量学的一个关键方面。

10.Modern geodesy techniques help in accurately determining positions on the Earth's surface.

现代大地测量学技术有助于准确确定地球表面的位置。

11.Satellite technology has greatly advanced the field of geodesy.

卫星技术极大地推动了大地测量学领域的发展。

12.Research in geodesy can provide valuable data for climate change studies.

在大地测量学方面的研究可以为气候变化研究提供宝贵的数据。

13.Engineers often rely on geodesy to ensure the accuracy of large construction projects.

工程师常常依赖大地测量学来确保大型建筑项目的准确性。

作文

Geodesy is a fascinating field of study that deals with the measurement and representation of the Earth. It encompasses various disciplines such as mathematics, physics, and engineering, making it a multidisciplinary science. The term geodesy (大地测量) originates from the Greek words 'geo' meaning Earth and 'dasein' meaning to measure. Essentially, geodesy is concerned with understanding the Earth's shape, orientation in space, and gravity field. This knowledge is critical for numerous applications, including navigation, satellite positioning, and even climate change monitoring. One of the most significant aspects of geodesy is its role in satellite positioning systems, such as GPS. These systems rely on precise measurements of distances from satellites orbiting the Earth to determine a user's location. The accuracy of these measurements is heavily dependent on the principles of geodesy. For instance, the curvature of the Earth and variations in its gravitational field must be taken into account to ensure that the data provided by GPS is accurate. Without the advancements in geodesy, modern navigation would not be as reliable as it is today. In addition to navigation, geodesy plays an essential role in mapping and land surveying. Surveyors utilize geodesy to create accurate maps of regions, which are crucial for urban planning, construction, and resource management. By employing techniques such as triangulation and satellite imagery, they can gather data that reflects the true dimensions and contours of the land. This information is vital for governments and organizations to make informed decisions regarding land use and infrastructure development. Furthermore, geodesy contributes significantly to our understanding of environmental changes. Scientists use geodesy to monitor sea-level rise, land subsidence, and tectonic plate movements. By analyzing data collected from various geodetic instruments, researchers can identify patterns and trends that indicate how the Earth is changing over time. This information is crucial for addressing issues related to climate change, natural disasters, and sustainable development. The methods used in geodesy have evolved dramatically over the years. Traditionally, geodesists relied on physical measurements and manual calculations. However, technological advancements have transformed the field. Today, satellite technology and computer modeling allow for much more precise measurements and analyses. The Global Navigation Satellite System (GNSS) is one such advancement that has revolutionized geodesy. It provides real-time data that can be used for various applications, from agriculture to disaster response. In conclusion, geodesy is a vital scientific discipline that underpins many aspects of our daily lives. Its applications in navigation, land surveying, and environmental monitoring illustrate its importance in both practical and theoretical contexts. As we continue to face challenges related to climate change and urbanization, the role of geodesy will only become more critical. Understanding this field not only enhances our knowledge of the Earth but also equips us with the tools needed to address some of the most pressing issues of our time.