1. 1. Distance between dams and catchment areas cannot be calculated in a practical way. Our way of calculating these types of geographical measurements were done with the help of Google Earth. https://www.google.com/intl/en_in/earth/
   2. The concept of formation of waves when two large water bodies collide was an article which was written by retired Chief engineer M. Sasidharan, member of the Inter State Water Advisory Committee for The Hindu. https://www.thehindu.com/news/national/kerala/cheruthonikulamavu-dams-may-not-survive-ifmullaperiyarcollapses/article2694363.ece/amp/
   3. The principle of large circular oceanic waves due to volcanic eruption in the middle of the ocean was considered with help of a reference website called montessorimuddle.org http://montessorimuddle.org/page/11/?s=math+pi
   4. Operation and maintenance manual for Idukki, Cheruthoni & Kulamavu dams by Kerala State Electricity Board Limited. @ Doc. No. DSO_O&M_ Idukki, Cheruthoni & Kulamavu Dams KSEBL_09_v1.0
   5. Google maps and google images for figures and graphs respectively