PERUBAHAN TERJADINYA PUNCAK PASANG SURUT SUNGAI BARITO AKIBAT PEMANASAN GLOBAL

Holdani Kurdi, Ulfa Fitriati, M. Ainun Najib, Aulia Isramaulana

Abstract


Regional development engineering in coastal areas, tidal land reclamation, delta area reclamation and port planning, tidal knowledge is very important. Tides mainly occur due to the gravitational forces of the moon, sun, and other planets. The influence of different gravitational forces can be predicted precisely because the rotation and revolutionary movements of the earth, moon, sun, and other planets take place with very high order. The tidal period every day is mainly determined by the rotation of the earth with a 24-hour period. Influence of the sun even though its attraction is only half that of the lunar pull, its influence should not be ignored As understood months around the earth with a period of about 29.5 days. When the position of the moon-earth-sun is in line, the tidal forces of the sun and moon strengthen each other. At that time spring tide occurred. Whereas if the sun-earth forms an angle of 90 degrees, then the minimum tides occur (neap tide). The two conditions are about 7 days old, according to the moon's revolution. Because of the influence of the inertia of the mass of water, the spring and neap tide occur between one and three days after these extreme conditions occur.
In short-term studies often researchers take extreme conditions, namely during the tidal peak and peak tide (spring tide), because it does not require a long time compared to researching during a longer tide period. The research approach that will be carried out is whether the tide and peak peaks still occur 1-3 days after the full moon and the dead moon, whether there is a change in the height of the tide and ebb during a certain period due to global warming.
As a result of global warming, it is also an effect on the water level of the Barito River. There was a decrease in the maximum water level which previously was around 3 m, now only around 2 m, the minimum water level previously around 2 m was now below 1 m. This will affect the hydrotopographic conditions of tidal swamp land, land that was previously type A can change to type B and so on. The highest tides on the Barito River often occur in the dead months, namely the 1st and 29th of the Hijri.

Keywords


tidal; global warming; water level; Hijri.

Full Text:

PDF

References


Fitriati, U., Novitasari., Riduan, R., dan Chandrawidjaja, R., 2017, Pengairan Pasang Surut, Lambung Mangkurat Univerity Press, Banjarmasin.

Kvale, E. P., 2006, The origin of neap–spring tidal cycles, Marine Geology 235 (2006) pp 5–18, Elsevier.

Nash, J. D., Kelly, S. M., Shroyer, E. L., Moum, J. N and Duda T. F., 2012, The Unpredictable Nature of Internal Tides on Continental Shelves, Journal Of Physical Oceanography Volume 42 2012 pp 1981-2000, American Meteorological Society.

Conte, J. F., J. L. Chau, G. Stober, N. Pedatella, A. Maute, P. Hoffmann, D. Janches, D. Fritts, and D. J. Murphy, 2017, Climatology of semidiurnallunar and solar tides at middle and highlatitudes: Interhemispheric comparison, J. Geophys. Res. Space Physics,122,7750–7760, Agu Publications.

https://bpdasbarito.or.id/




DOI: http://dx.doi.org/10.20527/infotek.v20i1.6960

DOI (PDF): http://dx.doi.org/10.20527/infotek.v20i1.6960.g5516

Article Metrics

Abstract view : 398 times
PDF - 340 times

Refbacks

  • There are currently no refbacks.


Copyright (c) 2019 INFO-TEKNIK

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License

joomla
statistics View My Stats

Indexed By:

 

Citation :

SINTA Grade 5 (Arjuna 44,06) :

GOOGLE SCHOLAR : Kutipan = 24, H-index = 3, i10-index = 0

IPI :  Artikel = 100

IOS 3969 : Artikel = 239