G
Geodesy
Ratnesh Kushwaha

Ratnesh Kushwaha

Ratnesh is a PhD researcher in Geodesy at IIT Kanpur, India, working on the development of a regional reference frame for India. His research focuses on CORS network quality assessment and the realization of multi-year secular and epoch-based reference frames using GNSS and other space-geodetic techniques, including SLR and VLBI, for geocentric realization. You can connect with Ratnesh on LinkedIn as @ratneshkushwaha.

Regional Reference Frames: Keeping Track of a Deforming Earth

August 28, 2026
Regional Reference Frames: Keeping Track of a Deforming Earth
Figure courtesy: Öykü Koç

You are observing the construction of a bridge that will be initiated on the two banks of a river simultaneously, in such a way that the works will eventually meet in the middle of the river. You wonder, how do they make sure that the construction on the two sides will stay aligned with the millimeter precision that this project requires? You are aware of previous constructions where small miscalc ...[Read More]