Monitoring the water vapor, snow/ice and sea level changes in the Antarctica with GNSS Meteorology and GNSS Reflectometry Techniques.


Selbesoğlu M. O. , Yavaşoğlu H. H. , Karabulut M. F. , Gülal V. E. , Karaman H., Kamaşak M. E.

XXIX INTERNATIONAL SYMPOSIUM ON: “MODERN TECHNOLOGIES, EDUCATION AND PROFESSIONAL PRACTICE IN GEODESY AND RELATED FIELDS”, İstanbul, Türkiye, 5 - 06 Kasım 2019, ss.21

  • Basıldığı Şehir: İstanbul
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayısı: ss.21

Özet

Abstract

Advanced remote sensing tools based on space geodetic techniques are widely used for various purposes, such as monitoring sea level, snow depth and, in particular, sounding water vapor which is the most abundant and important greenhouse gas in the Earth’s atmosphere. Over the past decade, GNSS Meteorology technique have become an effective tool for obtaining tropospheric parameters of the atmosphere. Moreover, GNSS reflectometer technique has been used in the last few years for obtaining important physical parameters such as snow depth and water level change with high temporal resolution and high accuracy. The main purpose of the study is monitoring the Horseshoe Island region's tropospheric water vapor variations, snow depth and ice thickness changes by means of GNSS Meteorology and GNSS Reflectometry techniques. For this purpose, determination of tidal effect and monitoring of snow / ice heights on Horseshoe Island will be carried out with observations of ultrasonic level sensors, meteorological stations and GNSS stations specially designed for the subject. In this respect, the Troposphere and Sea Level Reflectometer Observation Station and the Troposphere and Snow / Ice level Reflectometer Observation Station have been developed in accordance with the challenging weather conditions of Antarctica region with the cooperation of Yildiz Technical University and Istanbul Technical University. These comprehensive observation stations are based on space-based geodetic systems and are designed to produce output by combining high accuracy sound wave positioning data and meteorological station data. In addition, the parameters obtained from these stations will provide important information to support other scientific studies such as bathymetric mapping, geological and geophysical studies, real-time positioning, navigation and tectonics. We believe that the observations of these stations will contribute to the monitoring of global climate change and will support the scientific studies of our country in Antarctica.

Keywords: GNSS Meteorology; GNSS reflectometry; troposphere; antarctica; water vapor