Utilization of Wavewatch III Model Output Data for High Wave Analysis

Aror, Ricky Daniel; Patty, Wilhelmina; Ramdhani, Andri

doi:10.14710/ik.ijms.24.3.132-138

Cited by 3 publications

(3 citation statements)

References 3 publications

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“…Berbagai aktivitas kelautan berlangsung di Kawasan ini, terutama yang berkaitan dengan transportasi dan penangkapan ikan. Pada penelitian sebelumnya, Aror et al (2019) juga menggunakan data gelombang Wavewatch-III (WW3) mendapatkan hasil bahwa gelombang tinggi yang terjadi di Perairan Utara Sulawesi sangat dipengaruhi juga dengan adanya sistem sirkulasi tekanan rendah yang terjadi di sekitar wilayah tersebut.…”

Section: Pendahuluanunclassified

Karakteristik Arah Dan Tinggi Gelombang Signifikan Di Laut Sulawesi

Tindaon,

Djamaluddin,

Manengkey

et al. 2022

JPLT

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The Celebes Sea is an important area in terms of utilization of coastal and sea space. This study aims to describe the direction characteristics and significant wave heights in several areas of the Celebes Sea in various seasons and to analyze the characteristics of daily and monthly waves. The wave data used in this study is the result of Wavewatch-III wave predictions with a wave data duration of 2 years, January 2020 - December 2021. The areas that are the observation area are Station 1 (3°N 121°E), Station 2 (3° N 123° E), and Station 3 (3° N 125° E). Through the spatial-temporal analysis method, the results are presented in the form of a rose graph of the direction of the incoming wave. The most wave propagation directions that occur at the three coordinate points (Stations) for 2020 to 2021 come from the North and Northeast. The proportion of significant wave height above 1 meter indicates that the largest waves proportion has been in 2020 at the beginning of the year while in 2021 at the end of the year. Significant wave heights in 2020 occurred most strongly in the North season at the beginning of the year while in 2021 the strongest significant wave heights occurred in the North season at the end of the year. Besides the proportion of significant wave height occurrences in the South season, especially May and July in 2021. Analysis of daily waves at the overall measurement time shows that the direction of propagation of the waves has no difference based on different years. Daily significant wave heights above 2 meters have a tendency to occur in the morning to evening in 2020. Keywords: Waves, Wavewatch-III, Celebes Sea ABSTRAK Laut Sulawesi merupakan kawasan penting dalam hal pemanfaatan ruang pantai dan laut. Penelitian ini bertujuan untuk mendeskripsikan karakteristik arah, dan tinggi gelombang signifikan di beberapa kawasan Laut Sulawesi dalam berbagai musim yang berlangsung serta menganalisis karakteristik gelombang harian dan bulanan. Data gelombang yang digunakan dalam penelitian ini merupakan hasil prediksi gelombang Wavewatch-III dengan durasi waktu data gelombang 2 tahun, Januari 2020 - Desember 2021. Daerah yang menjadi area pengamatan yaitu Stasiun 1 (3°LU 121°BT), Stasiun 2 (3°LU 123° BT), dan Stasiun 3 (3°LU 125° BT). Melalui metode analisis spasial-emporal hasilnya disajikan dalam bentuk grafik mawar arah datang gelombang. Arah rambat gelombang terbanyak yang terjadi di ketiga titik koordinat (Stasiun) untuk tahun 2020 sampai 2021 datang dari arah Utara dan Timur Laut. Proporsi tinggi gelombang signifikan di atas 1 meter menunjukkan tahun 2020 paling besar proporsinya pada awal tahun sementara pada tahun 2021 pada akhir tahun. Tinggi gelombang signifikan pada tahun 2020 terjadi paling kuat pada musim Utara awal tahun sementara pada tahun 2021 tinggi gelombang signifikan paling kuat terjadi pada musim Utara akhir tahun disamping proporsi kejadian tinggi gelombang signifikan pada musim Selatan khususnya Mei dan Juli di tahun 2021. Analisis gelombang harian pada keseluruhan waktu pengukuran menunjukkan bahwa arah rambat gelombang tidak memiliki perbedaan berdasarkan tahun yang berbeda. Tinggi gelombang signifikan harian di atas 2 meter memiliki kecenderungan terjadi pada pagi sampai sore hari pada tahun 2020. Kata Kunci: Gelombang, Wavewatch-III, Laut Sulawesi

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Section: Pendahuluanunclassified

Karakteristik Arah Dan Tinggi Gelombang Signifikan Di Laut Sulawesi

Tindaon,

Djamaluddin,

Manengkey

et al. 2022

JPLT

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“…Therefore, the use of the WWIII model has been extended from deep-sea and continental shelf areas to shallow-water nearshore areas. The applicability of the WWIII model in near-island areas has been extensively verified [2][3][4][5]. Moreover, several studies have confirmed that the WWIII model provides generally good results at different wind forces in deep water by comparing it with other models such as SWAN, WAM, WAVAD and WWIII [6][7][8][9].…”

Section: Introductionmentioning

confidence: 96%

Evolution Wave Condition Using WAVEWATCH III for Island Sheltered Area in the South China Sea

Zou

Liu

Wang

et al. 2023

JMSE

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Wave conditions around islands in the South China Sea (SCS) are of significant interest due to their importance for marine operations and coastal engineering. Understanding and accurately predicting wave characteristics in this region are crucial. In this study, the third-generation wave model WAVEWATCH III is employed to examine wave conditions around islands in the SCS. According to the water depth and significant wave height, the sea state around the island was classified into two categories: typhoon sea state and moderate sea state. Several popular wind input–dissipation source terms (ST2, ST4 and ST6) are used to assess the typhoon sea state and the moderate sea state separately. The results are validated by field wave data. ST4 and ST6 show good performance in significant wave height for moderate sea states, while ST2 is good at the mean wave period. For the typhoon sea state, ST2 gives the best results in significant wave height with larger correlation coefficients and a smaller RMSE. The above results provide valuable insights into the effects of different source terms on the accuracy of wave simulations for different sea states. The spatial distribution of the significant wave heights is also demonstrated with ST2, which may be useful for assessing the wave conditions of marine structures from the large scale of the SCS to the island scale of the Yongle Atoll.

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“…E. Diputra et al (2018) dalam penelitiannya juga menyatakan bahwa Tinggi gelombang signifikan di Teluk Ratai selain dipengaruhi oleh angin, juga dipengaruhi oleh keadaan bentang alamnya. Aror et al (2019) juga menyebutkan peningkatan yang signifikan tinggi gelombang sebanding dengan peningkatan kecepatan angin.…”

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Analysis Of Weather Conditions and Hydrodynamics in Taman Nasional Bunaken

Molle

Schaduw

Sumilat

et al. 2022

JIP

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Taman Nasional Bunaken (TNB) is located in North Sulawesi Province, Republic of Indonesia. TNB offers an exploration experience of marine tourism such as snorkeling and diving. This study was conducted to determine the statistics and correlation of weather parameters on hydrodynamics in the waters of the small island of TNB. This information can be used by marine tourism users. The weather data studied are wind direction and speed. The hydrodynamic conditions studied were wave height and ocean currents. Respondent surveys were also conducted on tourist users at the research sites. The wind direction for the period January - April is dominant from the Northeast, May - September is dominant from the East to the South, October tends to be evenly distributed from the East to the West, and November - December is dominant from the West. Significant wind speeds that occur in January, February, and March range from 18 – 36 knots. The average wave height shows a significant value in January – March, tends to be lower in April – June, fluctuates in July – November, and increases again in December. The maximum current velocity at a sea depth of 16.5 m is stronger than the maximum speed at a depth of 0.5 m and 8.0 m in January – April, and May August. The correlation value of wind speed and sea wave height is significant at 0.96 and the correlation between wind speed and the current speed is 0.74. These results indicate that there is a strong -very strong relationship between parameters. The survey results show that wind speed, wave height, and ocean currents have the same pattern. January, February, November, and December are the months of extreme or bad weather and hydrodynamic conditions.Keywords: Taman Nasional Bunaken, Weather, Hydrodynamics, CorrelationAbstrakTaman Nasional Bunaken (TNB) terletak di Provinsi Sulawesi Utara, Negara Republik Indonesia. TNB menawarkan pengalaman eksplorasi suasana wisata bahari seperti snorkling dan diving. Penelitian ini dilakukan untuk mengetahui statistik dan korelasi parameter cuaca terhadap hidrodinamika di perairan pulau kecil TNB. Informasi tersebut dapat digunakan oleh pengguna wisata bahari. Data cuaca yang diteliti adalah arah dan kecepatan angin. Kondisi hidrodinamika yang diteliti ialah tinggi gelombang dan arus laut. Survei responden juga dilakukan kepada pengguna wisata di lokasi penelitian. Arah angin periode Bulan Januari - April dominan dari arah Timur Laut, Bulan Mei – September dominan dari arah Timur hingga Selatan, Bulan Oktober cenderung merata dari arah Timur hingga Barat dan Bulan November – Desember dominan dari arah Barat. Kecepatan angin signifikan terjadi pada bulan Januari, Februari, dan Maret berkisar antara 18 – 36 Knot. Rata-rata tinggi gelombang menunjukan nilai signifikan pada bulan Januari – Maret, cenderung merendah pada bulan April – Juni, berfluktuasi pada bulan Juli – November dan meningkat kembali di bulan Desember. Kecepatan maksimum arus laut di kedalaman 16.5 m lebih kuat jika dibandingkan kecepatan maksimum di kedalaman 0.5 m dan 8.0 m pada bulan Januari – April serta bulan Mei – Agustus. Nilai korelasi kecepatan angin dan tinggi gelombang laut signifikan sebesar 0.96 serta korelasi kecepatan angin dan kecepatan arus sebesar 0.74. Hasil tersebut menunjukkan antar parameter memiliki hubungan yang kuat - sangat kuat. Hasil survei menunjukan kecepatan angin, tinggi gelombang dan arus laut mempunyai pola yang sama. Bulan Januari, Februari, November, dan Desember merupakan bulan-bulan terjadinya kondisi cuaca serta hidrodinamika ekstrem atau buruk.Kata kunci: Taman Nasional Bunaken, Cuaca, Hidrodinamika, Korelasi

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Utilization of Wavewatch III Model Output Data for High Wave Analysis

Cited by 3 publications

References 3 publications

Karakteristik Arah Dan Tinggi Gelombang Signifikan Di Laut Sulawesi

Karakteristik Arah Dan Tinggi Gelombang Signifikan Di Laut Sulawesi

Evolution Wave Condition Using WAVEWATCH III for Island Sheltered Area in the South China Sea

Analysis Of Weather Conditions and Hydrodynamics in Taman Nasional Bunaken

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