Tidal Trend Evaluation for Imo River between 2013 and 2021

International Journal of Geoinformatics and Geological Science

© 2022 by SSRG - IJGGS Journal

Volume 9 Issue 1

Year of Publication : 2022

Authors : Akwaowo Udo Ekpa , Itoro Ben Udoh

10.14445/23939206/IJGGS-V9I1P105

How to Cite?

Akwaowo Udo Ekpa , Itoro Ben Udoh, "Tidal Trend Evaluation for Imo River between 2013 and 2021," SSRG International Journal of Geoinformatics and Geological Science, vol. 9,  no. 1, pp. 38-45, 2022. Crossref, https://doi.org/10.14445/23939206/IJGGS-V9I1P105

Abstract:

Reliable tidal prediction and estimation of water levels require accurate tidal prediction constants. To ascertain if the tide in Imo River was evolving, the investigation was carried out on the trend of tidal constituents and associated tidal constants. Trends for tidal harmonic constants, tidal datum, and tide ranges were analyzed based on sets of 35 tidal constituents derived in 2013 and 2021. Study results revealed an increase in amplitudes of diurnal constituents and a decrease for semi-diurnalsemi-diurnal components except for M2, the principal lunar semi-diurnalsemi-diurnal constituent. The trend of amplitude for the principal tidal constituents was within ±4cm. At the same time, the phase angles varied between -13.17° and 8.29° but for M2, which remained relatively stable. Tidal datum and tidal ranges for spring and neap tides had a mixed trend. Mean sea level between 2013 and 2021varied by 0.007m inferring that the relative sea-level increased by 0.88mm per year while the tidal range decreased by 53mm. Although the trend was relatively low, the study revealed that the tide in the Imo River is evolving over geological time scales due to relative sea-level rise. Care should be taken to account for the variability when predictions and investigations on tidal dynamics of the river are carried out.

Keywords:

Amplitude, Harmonic Constants, Phase Angles, Sea Level Rise, Tidal Constituents, Tidal Trend.

References:

[1] A. G. Abubakar, M. R. Mahmud, K. K. W. Tang, A. Hussaini, and N. H. M. Yusuf, A review of modeling approaches on tidal prediction. The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 42(4) (16) (2019) 23 – 34.
[2] (2021) The University of Hawai‘i website. [Online]. Available: https://manoa.hawaii.edu/exploringourfluidearth/physical/tides/tide -patterns-and-currents/activity-tidal-patterns-across-globe
[3] A. T. Devlin, D. A. Jay, E. D. Zaron, S. A. Talke, J. Pan and
[4] H. Lin, Tidal variability related to sea-level variability in the Pacific Ocean. Journal of Geophysical Research: Oceans, 122 (2017) 8445–8463.
[5] S. O. Denney, A tidal study of Great Bay, New Hampshire Master's Theses and Capstones. University of New Hampshire, Durham. (2012) 319. https://scholars.unh.edu/thesis/708
[6] J. M. Dias, J. M. Valentim, and M. C. Sousa, A numerical study of local variations in the tidal regime of Tagus Estuary, Portugal. PLOS ONE, 8(12) (2013) e80450.
[7] A. U. Ekpa, O. Okwuashi, and J. Mbat, Classical harmonic analysis of tide at Imo River, Nigeria, in Proc. FESIC, 11(1) (2016) 321 - 330.
[8] X. Feng, M. N. Tsimplis, and P. L. Woodworth, Nodal variations and long term changes in the main tides on the coasts of China. Journal of Geophysical Research: Oceans, 120 (2) (2015)1215- 1232.
[9] A. R. M. Faizuddin, and M. M. Razali, Variation of chart datum towards maritime delimitation due to rising sea level. The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 42(4) (W5) (2017) 53 - 68.
[10] I. D. Haigh, M. D. Pickering, J.A. Green, Mattias, B. K. Arabic, A. Arns, S. Dangendorf, D. Hill, Jay, and A. David, et al., The tides they are a-changing: A comprehensive review of past and future non-astronomical changes in tides, their driving mechanisms and future implications, Reviews of Geophysics, 57 (2019) 1- 39
[11] S. D. Hicks, Understanding tides. USA NOAA - Center for Operational Oceanographic Products and Services, 11 (30) (2006). 1 – 83.
[12] Intergovernmental Committee on Surveying and Mapping (ICSM), The factors contribute to the level of confidence in the tidal predictions accuracy of tidal predictions. The precision of standard port tidal predictions Permanent Committee on Tides and Mean Sea Level (PCTMSL) Std. (Ver 0.4.doc), (2017) 1- 39.
[13] L. Jänicke, A. Ebener, S. Dangendorf, A. Arns, M. Schindelegger, S. Niehüser, et al., Assessment of tidal range changes in the North Sea from 1958 to 2014. Journal of Geophysical Research: Oceans, 126 (2021) 1- 18.
[14] S. Li, L. Liu, S. Cai, and G. Wang, Tidal harmonic analysis and prediction with least-squares estimation and inaction method. Estuarine, Coastal and Shelf Science, 220 (2019) 196–208.
[15] P. Matte, D. A. Jay, and E. D. Zaron, Adaptation of classical tidal harmonic analysis to nonstationary tides, applies to river tides. Journal of Atmospheric & Oceanic Technology, 30(3) (2013) 569- 589.
[16] B. Morakinyo, and K. Sunmonu, Monitoring of tidal datum consistency for Nwaniba River in the Niger Delta. Journal of Geosciences and Geomatics, 7 (1) (2019) 1- 8.
[17] Why do we study tides? National Oceanic and Atmospheric Administration (NOAA) website. (2021a) .[Online]. Available: https://oceanservice.noaa.gov/facts/tidestudy.html
[18] Tides and water levels: monitoring the tides and their currents. National Oceanic and Atmospheric Administration (NOAA) website. (2021b). [Online]. Available: https://oceanservice.noaa.gov/education/tutorial_tides/tides09_mon itor.html.
[19] (No date) Navy Operation, Basic concepts in physical oceanography: tides. National Oceanic and Atmospheric Administration (NOAA) website. [Online]. Available: https://www.oc.nps.edu/nom/day1/partc.html.
[20] O. Okwuashi, C.E. Ndehedehe, and H. Attai, Tide modeling using partial least squares regression. Ocean Dynamics, 70 (2020) 1089- 1101.
[21] O. C. Ojinnaka, Hydrography in Nigeria and research challenges, in Proc. FIG Working Week, TS05E (6439) (2013) 1-11.
[22] O. C. Ojinnaka, Lecture notes on Hydrographic Surveying II [Class handout]. University of Uyo, Uyo, GSV 515 (2020).
[23] R. Pawlowicz, B. Beardsley, and S. Lentz, Classical tidal harmonic analysis including error estimates in Matlab using
[24] T-Tide, Computers & Geosciences, 28 (8) (2002) 929–937.
[25] B. B. Parker, Parker, Tidal analysis and prediction. NOAA - Center for Operational Oceanographic Products and Services, Std. NOS CO-OPS , (3) (2007) 20910-3281.
[26] V. Piton, M. Herrmann, F. Lyard, P. Marsaleix, T. Duhaut, D. Allain, and S. Ouillon, Sensitivity study on the main tidal constituents of the Gulf of Tonkin by using the frequency-domain tidal solver in T-UGOm. Geoscience Model Development, 13 (2020) 1583–1607.
[27] A. Stephenson, TideHarmonics- Harmonic analysis of tides using tide harmonics, cran.r-project (as tides), (2017) 1 – 117.
[28] S. A. Talke, A. C. Kemp and J. Woodruff, Relative sea level, tides, and extreme water levels in Boston harbor from 1825 to 2018. Journal of Geophysical Research: Oceans, 123 (2018) 3895–3914.
[29] S. A. Talke and D. A. Jay, Changing tides: the role of natural and anthropogenic factors. Annual Review of Marine Science, 12 (2020) 121-151.
[30] I. B. Udoh and A.U. Ekpa, Tidal constants derivation for Imo River. Nigerian Journal of Environmental Sciences and Technology, 6(1) (2022) 139 – 148.
[31] Tidal range. University of Southampton website. (2021). [Online]. Available: https://www.surgewatch.org/definition/tidal-range/
[32] J. Wang and E. Myers, Tidal datum changes induced by morphological changes of North Carolina Coastal Inlets. Journal of Marine Science and Engineering, 4 (79) (2016).
[33] D. Wang, H. Pan, G. Jin and X. Lv Seasonal variation of The principal tidal constituents in the Bohai Sea. Ocean Science, 16 (2020) 1-14