Tidal Constituents

vibes of this week: Bollywood, beach, sunsets, party

Goa, India is known for its amazing EDM club scene and beautiful ocean views. Goa is one of the smallest states in India but they host some of the most renowned parties and shows. Goa was also colonized by Portugal. Konkani is the official language of Goa and there are also many tribes such as the Gauda, Kunbi, Velip, Dhangar, and Siddi. Due to colonization there is a lot of Portuguese influence in this area, creating an intricate blend of cultures. One of the dominant tidal/harmonic constituents is

M2 – The largest lunar constituent – is related to the direct gravitational effect of the Moon on the tides. The Earth rotates on its axis every 24-hours, but the Moon is orbiting in the same direction as the Earth’s rotation. It takes a location on the Earth an additional 50 minutes to “catch up” to the Moon. This results in a tidal signal (M2) which has 2 peaks every 24-hours and 50 minutes [1].

Some of the environmental issues that the Goa coast faces are soil erosion, groundwater depletion, and unsustainable land use practices. These issues are further complicated by intense monsoon rains, mining activities, and the development of urban and tourism infrastructure. Some ways that Goa is trying to combat this is through techniques such as contour trenching, percolation tanks, and agroforestry. See the citations down below for more information. Happy Listening!!!!!!!

Cite:

[1] NOAA Center for Operational Oceanographic Products and Services, “About Harmonic Constituents,” Tides & Currents, National Oceanic and Atmospheric Administration, Online. Available: https://tidesandcurrents.noaa.gov/about_harmonic_c...Accessed: Jan. 23, 2026.

[2] S. Mandal, P. R. Shanas, S. Yuvaraj, D. Joseph, P. Aravind, J. George, J. Singh, and V. Sanil Kumar, “Evaluating the estuarine tidal discharge through water stage component analysis and in-situ measurement — Case study Mandovi–Zuari estuary of Goa, India,” Regional Studies in Marine Science, vol. 66, Art. no. 103124, Dec. 2023, doi: 10.1016/j.rsma.2023.103124.

[3] C. A. Noronha-D’Mello and S. Singh, “Geochemical characterization of mangrove sediments of the Zuari estuarine system, West coast of India,” Estuarine, Coastal and Shelf Science, vol. 167, part B, pp. 313–325, Dec. 2015, doi: 10.1016/j.ecss.2015.09.011.

[4[ B. Basavareddy, S. Bhattacharjee, and S. Desai, “Soil and water conservation measures in Goa: Protecting paradise for future generations,” Agriallis, vol. 7, no. 3, Article AL04442, Apr. 2025. Available: https://agriallis.com/wp-content/uploads/2025/04/S...

[5] ItsGoa, “Tribes of Goa: Guardians of Tradition and Culture,” ItsGoa, May 2025. [Online]. Available: https://itsgoa.com/tribes-of-goa. Accessed: Jan. 23, 2026.