Variabilitas Bulanan Klorofil-A Dan Suhu Permukaan Laut Pada Perairan Teluk Rembang Dengan Menggunakan Citra Sentinel-3

Ningrum, Devita; Zainuri, Muhammad; Widiaratih, Rikha

doi:10.14710/ijoce.v4i2.14258

Cited by 3 publications

(2 citation statements)

References 6 publications

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“…High chlorophyll-a concentration values occur when wind speed increases, and low sea surface temperatures occur when wind speed is high. On the other hand, chlorophyll-α concentrations decrease, and sea surface temperatures increase when wind speed decreases 18 . Winds blowing over the ocean surface can cause thermal mixing.…”

Section: Wind Speed and Directionmentioning

confidence: 99%

The Relationship of the Distribution of Sea Surface Temperature With Rainfall and Wind in the Waters of West Sumatra

Azmiada,

Elizal,

Mulyadi

2024

ajoas

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This research was carried out in February-March 2023 in the West Sumatra waters. It aimed to determine the variability of sea surface temperature, rainfall intensity, wind direction, and speed in the West Sumatra waters. Sea surface temperatures were taken from three stations, namely: in the coastal waters of Pariaman City, Padang-Pariaman Regency, and Bungus, Padang. The survey method was used, which was directly observed in the field. The results showed that the Sea Surface Temperature of the study areas ranged from 29.25oC-30.28oC, while the rainfall went from 211.97-499.89 mm, and the dominant speed was between 0.50-2.10 m/s. The correlation analysis between rainfall and sea surface temperatures in Station 1 yielded an "r" value of 0.871, a powerful correlation category, and the determination coefficient (R2) was 0.579 or 57.9% during the western season. In the east season, the "r" value was 0.321, in the moderate correlation category, and the determination coefficient was 0.103 or 10.3%. At Station 2, the correlation coefficient (r) was 0.788, a powerful correlation category, and the determination coefficient (R2) was 0.622 or 62.2% during the western season. In the east season, the "r" value was 0.699, a strong correlation category, and the determination coefficient was 0.488 or 48.8%. At Station 3, the "r" value was 0.688, a strong correlation category, and the determination coefficient was 0.477 or 47.7% during the western season. In the east season, the "r" value was 0.743, a strong correlation category, and the determination coefficient was 0.579 or 57.9%

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Section: Wind Speed and Directionmentioning

confidence: 99%

The Relationship of the Distribution of Sea Surface Temperature With Rainfall and Wind in the Waters of West Sumatra

Azmiada,

Elizal,

Mulyadi

2024

ajoas

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“…Coastal areas typically had higher chlorophyll-a concentration compared to open ocean regions. This could be attributed to coastal upwelling, river nutrient influx, and local environmental conditions (Ningrum et al 2022;Susanto et al,2006;Syahdan et al,2014).…”

Section: Analysis Of Chlorophyll-a Distributionmentioning

confidence: 99%

Analysis of Chlorophyll-a Variability in the Eastern Indonesian Waters Using Sentinel-3 OLCI from 2020-2021

Handoko,

Hayati,

Syariz

et al. 2024

For. Geo.

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The Eastern Indonesian waters are significant in influencing the global climate system and oceanic connectivity. However, the Indonesian Through Flow (ITF) facilitates the movement of waters from the Pacific Ocean to the Indian Ocean. This flow vertically mixes water masses in the Eastern regions, leading to the concentration of phytoplankton. In addition, the distribution of phytoplankton, indicative of chlorophyll-a concentration, is influenced by upwelling and downwelling phenomena. Chlorophyll-a, responsible for capturing carbon and producing oxygen in marine ecosystems, is important in regulating climate change. Moreover, oceanographic conditions play a significant role in the dispersion of chlorophyll-a concentration. Therefore, this study adopted ocean colour remote sensing technology to assess chlorophyll-a distribution. Monthly ocean colour data was collected by the multi-temporal Sentinel-3 Ocean and Land Colour Instrument (OLCI). The analysis output included chlorophyll-a concentration associated with currents and the El Nino Southern Oscillation (ENSO). Data processing using the Case-2 Regional Coast Colour (C2RCC) processor resulted in an average chlorophyll-a concentration in the Eastern Indonesian waters ranging from 0.16 to 0.52. The results showed higher chlorophyll-a levels during the southeast monsoon (July to September) and lower levels during the northwest monsoon (January to March).

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Analysis of Fish Catches of Fishermen in the Southern Waters of Java Island in 2018 and 2020 Based on Chlorophyll-A Fertility and Sea Surface Temperature

Novianto¹,

Hadibasyir²,

Wibowo³

2023

Proceedings of the International Conference of Geography and Disaster Management (ICGDM 2022)

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The decline in fish catches in 2018-2020 becomes a problem experienced by fishermen in the southern waters of Java island. This affects fishermen whose livelihoods are from marine products. From these problems, the purpose of the research is to analyze the fishermen's catches in the southern waters of Java island in 2018 and 2020 based on chlorophyll-a fertility and sea surface temperature (SST), and supported by upwelling phenomena and determination of Potential Fishing Zones. The method used is secondary data analysis taken from MODIS Level 3 imagery to visualize water conditions. The concentration of chlorophyll-a in the eastern season of 2018 had an average of 0.4-0.6 mg/m 3 with a sea surface temperature of 25.9-27.8 °C. In 2020, there was a decrease by an average of 0.3-0.4 mg/m 3 with a sea surface temperature of 26.7-28.3 °C. This is proved by all significance values of paired t-test less than 0.005. That is, there is a significant difference between both periods. In 2018, the widest strong upwelling was in July with an area of 13,0723.94 km 2 . In 2020, it occurred in June with an area of 41,515.86 km 2 . The most potential fishing zones of 2018 were in August as many as 254 points and in 2020 in July 154 points. High chlorophyll-a with low sea surface temperature levels, strong upwelling areas, and dominant potential fishing zones are mostly found in areas proximate to the coast compared to those further away from the coast.

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Variabilitas Bulanan Klorofil-A Dan Suhu Permukaan Laut Pada Perairan Teluk Rembang Dengan Menggunakan Citra Sentinel-3

Cited by 3 publications

References 6 publications

The Relationship of the Distribution of Sea Surface Temperature With Rainfall and Wind in the Waters of West Sumatra

The Relationship of the Distribution of Sea Surface Temperature With Rainfall and Wind in the Waters of West Sumatra

Analysis of Chlorophyll-a Variability in the Eastern Indonesian Waters Using Sentinel-3 OLCI from 2020-2021

Analysis of Fish Catches of Fishermen in the Southern Waters of Java Island in 2018 and 2020 Based on Chlorophyll-A Fertility and Sea Surface Temperature

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