Intercomparison of Assimilated Coastal Wave Data in the Northwestern Pacific Area

Hisaki, Yukiharu

doi:10.3390/jmse8080579

Cited by 9 publications

(4 citation statements)

References 32 publications

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“…The accuracy of the ERA5 wave data was verified by Reference [10], which shows the good accuracy. If it is verified that the drifting buoy wave data is more accurate than the ERA5 wave data, it can be shown that the drifting buoy wave data is useful for verification of the wave prediction data.…”

Section: Introductionmentioning

confidence: 80%

Validation of Drifting Buoy Data for Ocean Wave Observation

Hisaki

2021

JMSE

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Drifting buoys collect wave data in the open ocean far from land and in areas with strong currents. However, the validation of the drifting buoy wave data is limited. Here, we compared the drifting buoy wave data, ERA5 wave data, and moored GPS buoy wave data. Data from 2009 to 2018 near the coast of Japan were used. The agreement of the drifting buoy-observed wave parameters with the moored GPS buoy-observed wave parameters is better than that of ERA5 wave parameters, which is statistically significant. In particular, the accuracy of the ERA5 wave heights tends to be lower where the ocean currents are fast. On the other hand, the agreement between the drifting buoy-observed wave heights and the moored GPS buoy-observed wave heights was good even in the areas with strong currents. It is confirmed that the drifting buoy wave data can be used as reference data for wave modeling study.

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Section: Introductionmentioning

confidence: 80%

Validation of Drifting Buoy Data for Ocean Wave Observation

Hisaki

2021

JMSE

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“…From that study it was revealed that the ERA5 swell wave heights were overestimated during monsoon and post-monsoon seasons, while wind wave heights were not accurate for the monsoon period (RMSE = 0.32 m). On the other hand, Hisaki [37] evaluated ERA5 wave height data with wave measurements from buoys at 18 coastal locations around Japan and concluded that ERA5 wave height tends to be underestimated for increasing wave heights.…”

Section: Descriptionmentioning

confidence: 99%

Wave Analysis for Offshore Aquaculture Projects: A Case Study for the Eastern Mediterranean Sea

Karathanasi¹,

Soukissian

Hayes³

2022

Climate

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The investigation of wave climate is of primary concern for the successful implementation of offshore aquaculture systems as waves can cause significant loads on them. Up until now, site selection and design (or selection) of offshore cage system structures on extended sea areas do not seem to follow any specific guidelines. This paper presents a novel methodology for the identification of favorable sites for offshore aquaculture development in an extended sea area based on two important technical factors: (i) the detailed characterization of the wave climate, and (ii) the water depth. Long-term statistics of the significant wave height, peak wave period, and wave steepness are estimated on an annual and monthly temporal scale, along with variability measures. Extreme value analysis is applied to estimate the design values and associated return periods of the significant wave height; structures should be designed based on this data, to avoid partial or total failure. The Eastern Mediterranean Sea is selected as a case study, and long-term time series of wave spectral parameters from the ERA5 dataset are utilized. Based on the obtained results, the most favorable areas for offshore aquaculture installations have been identified.

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“…Thus, using data on pressure on the ocean floor observed from the sensors (S-net), a method for estimating tsunamis in almost real-time mode was developed [10]. JMA has an enormous seismic and metrological database, used by many scientists for various studies unrelated to forecasting and estimating the impact of tsunamis [11,12]. Based on JMA data, a seismic method was developed for use in tsunami warning that is based on the detection of the W-phase that appears between P-waves and S-waves in seismic records.…”

Section: Introductionmentioning

confidence: 99%

Deformation Anomalies Accompanying Tsunami Origins near the Japanese Islands

Dolgikh,

Dolgikh

2023

JMSE

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In the paper, we analyze laser strainmeter data for the period from 2014 to 2022 to identify deformation anomalies that led to the generation of tsunamis in the area of the Japanese Islands. It is impossible to determine the main characteristics of a tsunami from the deformation anomaly registered by the laser strainmeter, but it is possible to calculate the seabed displacement in the epicenter of a tsunami formation, which causes the tsunami. We have established that the relationship between the registered deformation anomalies and the seabed displacement in the tsunami source in the area of the Japanese Islands is similar to the same relationships found in other regions of the Earth (Indonesia, Latin America, and the West Coast of North America). This result allows us to assert that such a relationship should be typical of any region of the Earth. The obtained results are aimed at solving the problem of reliable short-term tsunami forecasting, which allows for the avoidance of false alarms that lead to significant socio-economic damage.

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Intercomparison of Assimilated Coastal Wave Data in the Northwestern Pacific Area

Cited by 9 publications

References 32 publications

Validation of Drifting Buoy Data for Ocean Wave Observation

Validation of Drifting Buoy Data for Ocean Wave Observation

Wave Analysis for Offshore Aquaculture Projects: A Case Study for the Eastern Mediterranean Sea

Deformation Anomalies Accompanying Tsunami Origins near the Japanese Islands

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