The Analysis of GPS Data in Different Observation Periods Using Online GNSS Process Services
Journal Title: International Journal of Environment and Geoinformatics - Year 2017, Vol 4, Issue 1
Abstract
The usability and the accuracy of internet-based position determination services which have gained importance in recent years is one of the up-to-date subjects of studies. Online processing services have more advantages than commercial and scientific software; since they are easy to use, require less experience and free because they get quick results. In this study, GPS observation files in rinex format belonging to 6 stations were evaluated using Auspos, Magic-GNSS and Opus services then the results were obtained. Three systems showed the similar results for the results obtained according to 24-hour measurement period. In the second study, observation files were divided into 12, 6 and 2 hour groups and after the results were obtained they were compared to 24-hour results. According to the reports, it was seen that the accuracy decreased as the observation period got shorter. In all three systems, 24 and 12-hour observation accuracy occurs in cm measures. In 6 and 2 hour periods where the observation period is shorter, accuracy value reaches to 3-4 cm. According to these results, it is seen that although it generally depends on observation period, internet-based position determination services sustain adequate accuracy for basic geodetic network application that the topographical engineering needs.
Authors and Affiliations
Sümeyra Gülmez, Ekrem Tuşat
Keywords
Related Articles
- EP ID EP197539
- DOI -
- Views 91
- Downloads 0
Heavy Metal Levels in Commercial Fishes Caught in the southern Black Sea coast
Sinop considered the mid-point of the Black Sea in Turkey and is located on Boztepe peninsula which is the most extended point of Turkish Black Sea coastline towards north. The fact that three sides of the peninsula are...
Determination of New Development Area in Kırklareli by GIS Based Weighted Overlay Analysis
In today's world geography, the migration from rural area to urban areas continues and the increasing urban population causes vertical and horizontal urban growth. Many factors, such as spatial growth of cities due to po...
Mapping South Tunisian Landscapes Using Remote Sensing and GIS Applications
Oases of South Tunisia, plays an important role in environmental, social and economic aspects of this region. This research was conducted in ten regions located on the south which are affected by changes in conditions an...
Koyunbaba Ancient Stone Quarry Dock
The subject matter of this article is the ancient stone quarry dock located in Quarter of Koyunbaba, municipality of Gümüşlük, district of Bodrum and province of Muğla. Rocks in Koyunbaba Ancient Stone Quarry are formed...
Anthropogenically-induced ecological risks in Lake Erikli, NW Turkey
This study examined the vertical distribution of heavy metals in the core sediments of Lake Erikli, Turkey and their potential ecological risks. Two core samples 48 and 34 cm in length were taken with a Kajak gravity cor...