Volume 32 (2023)
Volume 31 (2022)
Volume 30 (2021)
Volume 29 (2020)
Volume 28 (2019)
Volume 27 (2018)
Volume 26 (2017)
Volume 25 (2016)
Volume 24 (2015)
Volume 23 (2014)
Volume 22 (2013)
Volume 21 (2012)
Volume 20 (2011)
Volume 19 (2010)
Volume 18 (2009)
Volume 17 (2008)
Volume 16 (2007)
Volume 15 (2006)
Volume 14 (2005)
Volume 13 (2004)
Volume 12 (2003)
Volume 11 (2002)
Volume 10 (2001)
Volume 9 (2000)
Volume 8 (1999)
Volume 7 (1998)
Volume 6 (1997)
Volume 5 (1996)
Volume 4 (1995)
Volume 3 (1994)
Volume 2 (1992-1993)
Volume 1 (1990-1992)
Application of Hydrographic Side Scan Sonar

Abbas Ali Saleh Abadi (Translator)

Volume 15, Issue 58 , August 2006, , Pages 28-30

  The technology of hydrographic Side Scan Sonar has been developed by Professor Harold Edgerton and his colleagues in the year 1960. A Side Scan Sonar is a device that has the ability to search the space around it. The Sonar can be compared with a radar, but in a sonar the reflection of sound waves is ...  Read More

The Geodesy of Gravity

Abbas Ali Saleh Abadi (Translator)

Volume 12, Issue 46 , August 2003, , Pages 18-23

  Geodesy of gravity is a branch of geodesy that is mostly related to geophysics and geology. Identification of geodesy of gravity from geometric geodesy is based on relevant measurements and theoretical discussions on gravity field properties. These qualities were the same as those which led to discovery ...  Read More

Tide: a Complex Phenomenon

Abbas Ali Saleh Abadi (Translator)

Volume 12, Issue 48 , February 2003, , Pages 25-27

  The tide is a completely complex phenomenon that was fully described in the middle of the nineteenth century. The majority of confirmed popular opinions concern this issue.For example, we often assume that the Earth's rotation around itself displaces a great deal of water and creates a tidal wave, or ...  Read More

Shape of the Earth

Abbas Ali Saleh Abadi

Volume 10, Issue 39 , November 2001, , Pages 39-43

  While everyone can witness and perceive that surface of the earth has an irregular and complicated shape, and it's a clear and definite fact, there are nevertheless many problems in modulating this irregular surface, as well as doing any kind of calculations in connection with it.For our practical applications, ...  Read More

Utilization of Modern Technology in Hydrography

Abbas Ali Saleh Abadi (Translator)

Volume 10, Issue 38 , August 2001, , Pages 11-18

  Although multi-beam echo-sounders have been utilized to transmit and use several types of audio pulses simultaneously in hydrography (to determine the depth and topography of the sea floor) for a long time and are presented at the market for hydrographic equipment, but the extensive use of this type ...  Read More

The Day GPS Conquers the Skies

Abbasali Salehabadi (Translator)

Volume 6, Issue 23 , November 1997, , Pages 62-64

  Before emergence of GPS, the science of navigation couldn’t offer high accuracy in positioning during the day. But, at least it is comforting to remember that the Sun, stars and other celestial bodies are not controlled by super powers. Here, the author describes a system which always receives ...  Read More

Recent Advances in Geodetic Control Surveying for Building Large Tunnels

Abbasali Salehabadi

Volume 6, Issue 21 , May 1997, , Pages 45-50

  New methods of tunnel construction and its applications, especially in management and control, usually call for sufficient attention to tunnel’s directing process. New surveying equipment and technologies such as GPS and its long-standing rival, Gyro-theodolite, are able to fulfil this need. On ...  Read More

GPS, Maps and Surveying

Abbasali Salehabadi (Translator)

Volume 5, Issue 19 , November 1996, , Pages 30-35

  By introducing GPS into the global arena and increase in its applications, the basic concepts of geodetic science and surveying have changed. GPS is capable of a relatively fast and accurate determination of position in any weather conditions. Working with it is economical and cost-effective. On the ...  Read More

Land Feature Positioning Using GPS

Abbasali Salehabadi (Translator)

Volume 5, Issue 18 , August 1996, , Pages 41-42

  There is no need to take important and risky measures to obtain highly accurate geographic data using the GPS. Entry into this new technology requires careful observation during the examinations of the costs, and correction of errors. The main motive behind the development of the GPS (Global Positioning ...  Read More

Application of Short-Range Digital Photorammetry in a Ship-Building Project

Abbasali Salehabadi (Translator)

Volume 5, Issue 17 , May 1996, , Pages 6-10

  Automatic or semi-automatic short-range digital photogrammetric systems are among the most accurate and efficient instruments for most measurements in industrial production. This paper examines and illustrates the experiences and results of strategic studies on a short-range digital photogrammetric project ...  Read More

Advantages of Integrated GPS/GLONASS Operations

Abbasali Salehabadi (Translator)

Volume 5, Issue 17 , May 1996, , Pages 17-22

  Russia's satellite navigation system, known as Glonass, will be completed in late 1995. This system consists of 24 satellites, which move in three elliptical orbits, at a distance of 19,100 kilometers from the Earth’s surface. These satellites introduce the Glonass system, which is subject to comparisons ...  Read More

Post-mission GPS Absolute Kinematic Positioning at One- metre Accuracy Level

Abbasali Salehabadi (Translator)

Volume 5, Issue 20 , February 1996, , Pages 16-19

  Absolute positioning is the use of a unique GPS receiver. In the instantaneous measurement and processing of GPS data, accuracy of positioning of points is limited by errors such as those of satellite orbit, the deliberate S.A noise, effects of propagation of carrier waves in the receiver's environment ...  Read More

Ring of Fire

Abbasali Salehabadi (Translation)

Volume 4, Issue 15 , November 1995, , Pages 7-9

  On May 10, 1994, the occurrence of a partial or ring eclipse of the sun in North America for more than six minutes fascinated millions of people in these areas. Unlike a general eclipse, a ring eclipse occurs when the moon is at the place on its orbit around the Earth farthest from that planet. In this ...  Read More

Study of Change in Shape of Earth's Crust Using GPS Information Processing During 1991 in Finland

Abbasali Salehabadi (Translation)

Volume 4, Issue 14 , August 1995, , Pages 53-64

  In this paper, the observational data provided by two types of GPS operations conducted in July 1991 in the areas of Pohjanmaa and Savo-Kainuu in the country of Finland have been investigated. In this test, the Bernese software system was used to process the data. Although some of the GPS data mentioned ...  Read More

Dual Elevation System for NAD-83 Datum

Abbasali Salehabadi (Translation)

Volume 4, Issue 13 , May 1995, , Pages 12-14

  The dual elevation system has been used in distribution of the North American Datum (NAD-83), with few people around the world aware of this, if they have previously heard about it at all. The application of this topic here is in fact as a kind of reminder, because there are many geodetic issues that ...  Read More

New Results from Photography Flights Along With GPS

Abbasali Salehabadi (Translation)

Volume 4, Issue 13 , May 1995, , Pages 15-20

  This paper describes the activities undertaken by HANSA LUFTBILD Corporation over the past two years to employ a GPS system for surveying activities in the fields of air navigation and triangulation. Along with familiarity with the various components of this system, our basic emphasis is on making the ...  Read More

Toward Greater Efficiency of Radar Altimeter Data Applications

Abbasali Salehabadi (Translator)

Volume 4, Issue 16 , February 1995, , Pages 33-42

  A radar altimeter installed on the front of a satellite sends electronic pulses to the Earth, and then receives reflections from the ground surface that pass around the satellite. The propagation speed of these waves in space is equal to the speed of light. The satellite radar measures the elapsed time ...  Read More

Application of the GPS Kinematic Method for Triangulation in Finland

Abbasali Salehabadi (Translation)

Volume 3, Issue 12 , February 1994, , Pages 35-48

  Two separate types of flights were made in Finland to determine how the position of the aerial camera is determined by the GPS system. The first test flight was conducted for a small block under adverse weather conditions, with the results indicating a high potential for GPS in modifying the block through ...  Read More