Although there is relatively much noise, TEC from code pseudo range measurements is free of ambiguity.
We calculated the absolute slant TEC using code measurements, and smoothed it with the carrier phase measurements.
On the other hand, TEC from code pseudorange measurements is free of ambiguity but with relatively more noise.
Therefore, as option, an 'adjustment' to the vertical TEC from CODE has been introduced, to see if it has any effect in modeling the ionosphere in the region of interest.
These are used to calculate the pseudo range and differential carrier phase which result in the determination of the slant code TEC and slant phase TEC, respectively.
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During this earthquake, not only the buildings designed in accordance with the old earthquake codes but also the ones designed in accordance with the current Turkish Earthquake Code (TEC) were severely damaged.
Although overhang direction and length must be designed by considering seismic loads and design rules are given in Turkish Earthquake Code (TEC), most of the buildings are not constructed properly.
Details on moment-resisting beam-to-column connections are given only for I-profiles in the Turkish Earthquake Code (TEC, 2007) and no details about beam-to-column connections consisting of box or circular hollow sections is available in the relevant code.
Calibrated TEC obtained using CODE-derived DCBs, is accurate to within 0.74 TEC units (TECU) in differenced slant TEC (sTEC), while calibrated sTEC using MSD-derived DCBs results in an accuracy of 1.48 TECU.
Results have been compared with the estimated TECs by the CODE, ESA, IGS centers and IRI-2012 model.
