Astronomical site selection for Turkey using GIS techniques

Download

index.pdf

Date

2015-10-01

Author

AKSAKER, NAZIM
Yerli, Sinan Kaan
ERDOĞAN, MEHMET AKİF
Erdi, E.
Kaba, K.
Ak, T.
Aslan, Z.
BAKIŞ , VOLKAN
DEMİRCAN, OYA
Evren, S.
KESKİN, VAROL
KÜÇÜK, Ibrahim
ÖZDEMİR, TUNCAY
Ozisik, T.
SELAM, SELİM OSMAN

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

48
views

136
downloads

A site selection of potential observatory locations in Turkey have been carried out by using Multi-Criteria Decision Analysis (MCDA) coupled with Geographical Information Systems (GIS) and satellite imagery which in turn reduced cost and time and increased the accuracy of the final outcome. The layers of cloud cover, digital elevation model, artificial lights, precipitable water vapor, aerosol optical thickness and wind speed were studied in the GIS system. In conclusion of MCDA, the most suitable regions were found to be located in a strip crossing from southwest to northeast including also a diverted region in southeast of Turkey. These regions are thus our prime candidate locations for future on-site testing. In addition to this major outcome, this study has also been applied to locations of major observatories sites. Since no goal is set for the best, the results of this study is limited with a list of positions. Therefore, the list has to be further confirmed with on-site tests. A national funding has been awarded to produce a prototype of an on-site test unit (to measure both astronomical and meteorological parameters) which might be used in this list of locations.

Subject Keywords

Observatories, Telescopes, GIS, Multi-Criteria decision analysis, Turkey, Data Analysis

URI

https://hdl.handle.net/11511/37889

Journal

EXPERIMENTAL ASTRONOMY

DOI

https://doi.org/10.1007/s10686-015-9458-x

Collections

Department of Physics, Article

Suggestions

OpenMETU
Core

Seismic Microzonation of Erbaa, Tokat Province, Turkey, Based on Analytical Hierarchical Process Akin, Muge K.; Topal, Tamer; Kramer, Steven L. (2012-05-01) This study is to develop a seismic microzonation map using Analytical Hierarchical Process (AHP), one of the Multicriteria Decision Analysis methods based on Geographical Information Systems. The study area, Erbaa, is located along the eastern segment of the North Anatolian Fault Zone and is one of the largest towns and one of 12 districts within Tokat Province (population, similar to 176,000) in the Middle Black Sea Region of Turkey. Erbaa is located on the southwest bank of the Kelkit River. After the dis...
URBAN BUILDING DETECTION FROM OPTICAL AND INSAR FEATURES EXPLOITING CONTEXT Wegner, J. D.; Ok, Ahmet; Thiele, A.; Rottensteiner, F.; Soergel, U. (2010-09-03) We investigate the potential of combined features of aerial images and high-resolution interferometric SAR (InSAR) data for building detection in urban areas. It is shown that completeness and correctness may be increased if we integrate both InSAR double-bounce lines and 3D lines of stereo data in addition to building hints of a single optical orthophoto. In order to exploit context information, which is crucial for object detection in urban areas, we use a Conditional Random Field approach. It proves to b...
Hierarchical land use and land cover classification of Sentinel 2-a images and its use for corine system Demirkan, Doğa Çağdaş; Akyürek, Sevda Zuhal; Koz, Alper; Department of Geodetic and Geographical Information Technologies (2017) The aim of this thesis is to investigate the potential of Sentinel-2 satellite for land use and land cover mapping. The commonly known supervised classification algorithms, support vector machines (SVMs) and maximum likelihood classification, are adopted for investigation along with a hierarchical classification model CORINE. The main classes for land cover and mapping are selected as water, vegetation, built-up and bare-land in the first level, which is followed by inland water, marine water, forest/meadow...
Status of the VERITAS Observatory Holder, J.; Acciari, V. A.; Aliu, E.; Arlen, T.; Beilicke, M.; Benbow, W.; Bradbury, S. M.; Buckley, J. H.; Bugaev, V.; Butt, Y.; Byrum, K. L.; Cannon, A.; Celik, O.; Cesarini, A.; Ciupik, L.; Chow, Y. C. K.; Cogan, P.; Colin, P.; Cui, W.; et.al. (2009-01-01) VERITAS, an Imaging Atmospheric Cherenkov Telescope (IACT) system for gammma-ray astronomy in the GeV-TeV range, has recently completed its first season of observations with a full array of four telescopes. A number of astrophysical gamma-ray sources have been detected, both galactic and extragalactic, including sources previously unknown at TeV energies. We describe the status of the array and some highlight results, and assess the technical performance, sensitivity and shower reconstruction capabilities.
Long-term variations and periods of Mira stars from ROTSE–IIId Yeşilyaprak, C.; Yerli, Sinan Kaan; Güçsav, B.B.; Aksaker, N.; Dikicioğlu, E.; Helvacı, M.; Çoker, D.; Aydın, M.E.; Dinçel, B.; Uzun, N. (Elsevier BV, 2012-7) We have studied the long-term variations of Mira type variables observed with Robotic Optical Transient Search Experiment telescope (ROTSE-IIId) between 2004 and 2009 located at TUBITAK National Observatory (TUG) in Antalya, Turkey. The actual pulsation periods, variability amplitudes, epochs of maximums and light curves of selected 70 Mira type variables already defined in the SIMBAD database were investigated. In these variables; 17 periods are identified for the first time. Crown Copyright.

Citation Formats

N. AKSAKER et al., “Astronomical site selection for Turkey using GIS techniques,” EXPERIMENTAL ASTRONOMY, pp. 547–566, 2015, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/37889.