TY - JOUR A1 - Inyurt, S. A1 - Mekik, C. A1 - Yildirim, O. T1 - MONITORING IONOSPHERIC VARIATION FOR A DEFINITE PERIOD TIME IN TURKEY JO - Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci. J1 - ISPRS-Archives VL - XL-1/W5 SP - 339 EP - 342 Y1 - 2015/12/11 PB - Copernicus Publications SN - 2194-9034 UR - https://isprs-archives.copernicus.org/articles/XL-1-W5/339/2015/ L1 - https://isprs-archives.copernicus.org/articles/XL-1-W5/339/2015/isprsarchives-XL-1-W5-339-2015.pdf DO - 10.5194/isprsarchives-XL-1-W5-339-2015 ER -