Geodesy - دانشکده مهندسی نقشه برداری و اطلاعات مکانی geospatialeng
Departments
Department of Geodesy and Hydrography
گرایشها
Welcome To the Geodesy Group!
The study of geometrical and gravitational properties of the earth and their changes during the time is literally known as Geodesy. It also studies physical components of the earth such as hydrosphere, atmosphere and the earth core.
The major objectives of the geodesy are as follows:
- Determination of the shape of the earth and its gravitation and changes in them. This results in monitoring of crustal and polar motion.
- Definition of a geodetic coordinates system in order to determination horizontal and vertical networks precise coordinates.
- Exploiting different geodetic instruments and techniques including total stations, GNSS, VLBI, etc. to measure distance directions and baselines precisely.
- Presentation of mathematical models to be used for geodetic coordinates and map projection
Geodesy can be divided into the following branches:
1. Geophysical Geodesy: techniques used to model and study geodynamical process including crustal movements, galical isostatic adjustment and variations in Earth rotation and orientation.
2. Physical Geodesy: determination of the Earth's physical shape and its gravitational field by formulation and solution of the relevant boundary-value problems, is the major concern of this branch.
3. Geometrical/Mathematical Geodesy: This branch leads with computing accurate position from geodetic measurements, mostly on reference ellipsoid, map projection is classified as a task of this branch as well..
3. Satellite/Space Geodesy: It's tasks include precise orbit determination (hence inferring the gravity field and also terrestrial and space positioning using range measurements.
4. Astronomical Geodesy: This branch is concerned with development of astronomical theories and techniques to define and estimate the shape of the earth and its gravitational field.
5- Astronomical Geodesy: This branch is concerned with development of astronomical theories and techniques to define and estimate the shape of the earth and its gravitational field.
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| Laboratories | Description |
| 1 | Micro geodesy Laboratory | establish and maintain higher-order (first, second and third-order) geodetic ground control network, deformation studies, and structure analysis such as bridges, dams, precision alignments, industrial machinery installation |
| 2 | Space Geodesy Laboratory | Current research activities include satellite altimetry, satellite gravimetry, orbital science, airborne and shipborne gravimetry, GPS positioning for moving platforms, and surface deformations |
| 3 | Physical Geodesy Laboratory | measurements and characteristics of the earth's gravity field as well as theories regarding this field to deduce the shape of the geoid and in combination with arc measurements, the earth's size, exploration |
| 4 | Tectonic Geodesy Laboratory | Monitoring and analyzing the changing shape and gravity field of our planet over the widest possible range of spatial and temporal scales |
| 5 | Geodetic Laboratory | research and development in the areas of static and kinematic positioning with the Global Positioning System (GPS), satellite altimetry, geoid determination, crustal deformation, the earth's rotation, and tropospheric and ionospheric studies |
| 6 | Astronomical Geodesy Laboratory | Computation of vertical deflections, Astronomical coordinates, Satellite tracking |
| 7 | Environments and Disaster Monitoring | Environmental monitoring and evaluation of floods and droughts, geologic and geomorphic hazards, and |