Articles in the Surveying Category

Sep 2009 | No Comment

In the rapidly changing economic, technological, political, and social environment that characterises the world as we see it in the 21st Century, every profession faces major challenges, surveying being no exception. While some of these challenges are common across all professions, others are specific to the surveying community. In this discussion I choose to separate the challenges facing the surveying profession into these two categories…

Mar 2009 | Comments Off on Real time monitoring of Dalian Beida Bridge

There are many traditional surveying methods used for the large-scale bridge structure deformation monitor such as the accelerometer measure, the total station surveying and the laser collimation, but these methods are limited by its function of which the continuity, timeliness and automaticity can not meet the need of the large-scale construction dynamic monitor. In recent years, with the GPS hardware and software technology developed, especially the GPS receiver with the high data-collection frequency (for example 10Hz even 20Hz[1][4]) appearanced as well as the GPS data processing was improvement, the GPS-RTK technology applied in large-scale bridge dynamic deformition monitor with real-time or quasi-realtime has become true[2][3].

Feb 2009 | No Comment

Geomatics is the art and science of measurements on the surface of earth including what is below the earth and in the oceans. This is the simplest form of definition; more exact and elaborate definition has been produced by FIG¹. In other simple words Geomatics is the new terminology for the centuries old profession of Surveying and Mapping…

Nov 2008 | Comments Off on The surveying profession is not a dying profession

Surveying which has been even called the foundation of civil engineering profession has been into existence far longer than some of the high tech and highly paid glamorous professions of recent times. Surveying was practiced when Egyptians were building Pyramids.

Nov 2008 | No Comment

The future of the surveying profession is an issue that has been lingering for many years. Recently, the concern has been growing wider and louder among surveyors. Some surveyors contend that the surveying profession, in its current form, is heading towards extinction. Their reasons include a gradual decline in the number of qualified and licensed professionals, impact of emerging technologies, sophisticated and more capable equipment…

Oct 2008 | No Comment

Surveying is a service oriented profession, by making maps we do service to the society. The more you serve the society, the more the profession will be known. In a country like India, there is a huge requirement of professionals in the domain of surveying. In the 1970’s a study was done to assess the requirements of the country and even then it was felt that there was need forthree Survey of India (SOI)…

Aug 2008 | One Comment

Ten years ago the California Board for Professional Engineers and Land Surveyors (BPELS) attempted to pass a set of rules that required all digital mapping to be performed by Professional Land Surveyors. The motivation for these rules stemmed from the definition of surveying under the California Professional Land Surveyors’ Act, which includes specific reference to digital mapping being within the purview of the Professional Land Surveyor…

Dec 2007 | No Comment

Quality hydrographic survey data is essential for efficient maritime development
N R Raut
Assistant Hydrographic Surveyor in Minor Ports Survey Organisation,
Ministry Of Shipping, Road, Transport & Highways.

India has long coastline of 7517 kms with 12 major ports and 187 minor & intermediary ports. Major ports all together handled 423 million tones traffic & non–major ports all together …

Nov 2007 | No Comment

Rear Admiral K R Srinivasan

Rear Admiral K R Srinivasan

AVSM, IN (Retd), Hydrographic and Oceanographic Expert,

Chief Hydrographer, Government of India

MARITIME Boundary Delineation (MBD) with neighbouring States is an essential need for national security and offshore development, more so for developing States with sizeable Exclusive Economic Zone(EEZ) and Continental Shelf Areas. Whilst it is laudable that India …

Sep 2007 | Comments Off on Unconventional applications with single frequency DGPS

CURRENTLY the trend is that more and more project authorities are mandating use of GPS for control work and private surveyors have to comply with this requirement. Dual frequency DGPS have been beyond the financial reach of these surveyors as such most prefer to invest in single frequency DGPS, which cost almost one third the cost of dual frequency DGPS.