scholarly journals Review of the manuscript “Linking sardine recruitment in coastal areas to ocean currents using surface drifters and HF radar. A case study in the Gulf of Manfredonia, Adriatic Sea” by Sciascia et al

2018 ◽  
Author(s):  
Anonymous
Keyword(s):  
Adriatic Sea ◽  
Coastal Areas ◽  
Ocean Currents ◽  
Hf Radar ◽  
Surface Drifters

scholarly journals Linking sardine recruitment in coastal areas to ocean currents using surface drifters and HF radar: a case study in the Gulf of Manfredonia, Adriatic Sea

Ocean Science ◽  
2018 ◽  
Vol 14 (6) ◽  
pp. 1461-1482 ◽  
Author(s):  
Roberta Sciascia ◽  
Maristella Berta ◽  
Daniel F. Carlson ◽  
Annalisa Griffa ◽  
Monica Panfili ◽  
...  
Keyword(s):  
Adriatic Sea ◽  
Strong Dependence ◽  
Early Life History ◽  
Ocean Currents ◽  
Hf Radar ◽  
Residence Times ◽  
Sustainable Resource Management ◽  
Surface Ocean ◽  
Surface Drifters

Abstract. Understanding the role of ocean currents in the recruitment of commercially and ecologically important fish is an important step toward developing sustainable resource management guidelines. To this end, we attempt to elucidate the role of surface ocean transport in supplying recruits of European sardine (Sardina pilchardus) to the Gulf of Manfredonia, a known recruitment area in the Adriatic Sea. Sardine early life history stages (ELHSs) were collected during two cruises to provide observational estimates of their age–size relationship and their passive pelagic larval duration (PPLD). We combine these PPLDs with observations of surface ocean currents to test two hypotheses: (1) ELHSs are transported from remote spawning areas (SAs) by ocean currents to the Gulf of Manfredonia; (2) sardines spawn locally and ELHSs are retained by eddies. A historical surface drifter database is used to test hypothesis 1. Hypothesis 2 is tested by estimating residence times in the Gulf of Manfredonia using surface drifters and virtual particles trajectories that were computed from high-resolution observations of surface currents measured by a high-frequency (HF) radar network. Transport to the Gulf of Manfredonia from remote SAs seems more likely than local spawning and retention given a mismatch between observed PPLDs of 30–50 days and relatively short (<10-day) average residence times. The number and strength of connections between the gulf and remote SAs exhibit a strong dependence on PPLD. For PPLDs of 20 days or less, the gulf is connected to SAs on the western Adriatic coast through transport in the Western Adriatic Current (WAC). SAs on the east coast are more important at longer PPLDs. SAs in the northern and central Adriatic exhibit weak connections at all PPLD ranges considered. These results agree with otolith microstructure analysis, suggesting that the arrival of larvae in the gulf is characterized by repeated pulses from remote SAs. This is the first attempt to describe the processes related to Lagrangian connection to, and retention in, the Gulf of Manfredonia that will be complemented in the future using validated numerical ocean models and biophysical models.

scholarly journals Linking sardine recruitment in coastal areas to ocean currents using surface drifters and HF radar. A case study in the Gulf of Manfredonia, Adriatic Sea

2018 ◽  
Author(s):  
Roberta Sciascia ◽  
Maristella Berta ◽  
Daniel F. Carlson ◽  
Annalisa Griffa ◽  
Monica Panfili ◽  
...  
Keyword(s):  
Adriatic Sea ◽  
Early Life History ◽  
Ocean Currents ◽  
Hf Radar ◽  
Sustainable Resource Management ◽  
Surface Ocean ◽  
Spawning Areas ◽  
Surface Drifters ◽  
Particles Trajectories

Abstract. Understanding the role of ocean currents in the recruitment of commercially and ecologically important fish is an important step toward developing sustainable resource management guidelines. To this end, we attempt to elucidate the role of surface ocean transport in supplying recruits of European sardine (Sardinus pilchardus) to the Gulf of Manfredonia, a known recruitment area in the Adriatic Sea. Sardine early life history stages (ELHS) were collected during two cruises to provide observational estimates of age-size relationship and of their passive pelagic larval duration (PPLD). We combine these PPLDs with observations of surface ocean currents to test two hypotheses: (1) ELHS are transported from remote spawning areas (SAs) by ocean currents to the Gulf of Manfredonia; (2) sardines spawn locally and ELHS are retained by eddies. A historical surface drifter database is used to test hypotheses 1. Hypothesis 2 is tested by estimating residence times of surface drifters and virtual particles trajectories that were computed from high resolution observations of surface currents measured by a High Frequency (HF) radar network. Transport to the Gulf of Manfredonia from remote SAs seems more likely than local spawning and retention given a mismatch between observed PPLDs of 30–50 days and relatively short (

scholarly journals Strongly Coupled Assimilation of a Hypothetical Ocean Current Observing Network within a Regional Ocean-Atmosphere Coupled Model: An OSSE Case Study of Typhoon Hato

2021 ◽  
Author(s):  
Luke Phillipson ◽  
Yi Li ◽  
Ralf Toumi
Keyword(s):  
Coupled Model ◽  
Ocean Currents ◽  
Hf Radar ◽  
Ocean Current ◽  
Coastal Current ◽  
Strongly Coupled ◽  
Ocean Atmosphere ◽  
Atmospheric Observations ◽  
Surface Drifters ◽  
The Impact

AbstractThe forecast of tropical cyclone (TC) intensity is a significant challenge. In this study, we showcase the impact of strongly coupled data assimilation with hypothetical ocean currents on analyses and forecasts of Typhoon Hato (2017). Several observation simulation system experiments were undertaken with a regional coupled ocean-atmosphere model. We assimilated combinations of (or individually) a hypothetical coastal current HF radar network, a dense array of drifter floats and minimum sea-level pressure. During the assimilation, instant updates of many important atmospheric variables (winds and pressure) are achieved from the assimilation of ocean current observations using the cross-domain error covariance, significantly improving the track and intensity analysis of Typhoon Hato. As compared to a control experiment (with no assimilation), the error of minimum pressure decreased by up to 13 hPa (4 hPa / 57 % on average). The maximum wind speed error decreased by up to 18 knots (5 knots / 41 % on average). By contrast, weakly coupled implementations cannot match these reductions (10% on average). Although traditional atmospheric observations were not assimilated, such improvements indicate there is considerable potential in assimilating ocean currents from coastal HF radar, and surface drifters within a strongly coupled framework for intense landfalling TCs.

scholarly journals Strongly Coupled Assimilation of a Hypothetical Ocean Current Observing Network within a Regional Ocean-Atmosphere Coupled Model: An OSSE Case Study of Typhoon Hato

2021 ◽  
Author(s):  
Luke Phillipson ◽  
Yi Li ◽  
Ralf Toumi
Keyword(s):  
Coupled Model ◽  
Ocean Currents ◽  
Hf Radar ◽  
Ocean Current ◽  
Coastal Current ◽  
Strongly Coupled ◽  
Ocean Atmosphere ◽  
Atmospheric Observations ◽  
Surface Drifters ◽  
The Impact

&lt;p&gt;The forecast of tropical cyclone (TC) intensity is a significant challenge. &amp;#160;In this study, we showcase the impact of strongly coupled data assimilation with hypothetical ocean currents on analyses and forecasts of Typhoon Hato (2017).&amp;#160;&lt;/p&gt;&lt;p&gt;Several observation simulation system experiments were undertaken with a regional coupled ocean-atmosphere model. We assimilated combinations of (or individually) a hypothetical coastal current HF radar network, a dense array of drifter floats and minimum sea-level pressure. During the assimilation, instant updates of many important atmospheric variables (winds and pressure) are achieved from the assimilation of ocean current observations using the cross-domain error covariance, significantly improving the track and intensity analysis of Typhoon Hato. As compared to a control experiment (with no assimilation), the error of minimum pressure decreased by up to 13 hPa (4 hPa / 57 % on average). The maximum wind speed error decreased by up to 18 knots (5 knots / 41 % on average).&amp;#160;&lt;/p&gt;&lt;p&gt;By contrast, weakly coupled implementations cannot match these reductions (10% on average). Although traditional atmospheric observations were not assimilated, such improvements indicate there is considerable potential in assimilating ocean currents from coastal HF radar, and surface drifters within a strongly coupled framework for intense landfalling TCs.&lt;/p&gt;

TIDAL FLATS DEVELOPMENT MODEL OF COASTAL AREAS —A CASE STUDY OF YANCHENG CHINA

2020 ◽  
pp. 25-28
Author(s):  
XU HUILIN ◽  
CHEN HUIHUI ◽  
ZHOU WEI ◽  
FU JIAJIA
Keyword(s):  
Coastal Areas ◽  
Tidal Flats ◽  
Development Model ◽  
Ecological Environment ◽  
Present Stage ◽  
Important Resource ◽  
Modern Agriculture ◽  
Dynamic Growth

Tidal fats resources is an important resource in coastal areas of China, which shows a trend of dynamic growth. Ratonal development and efectve utlizaton of tdal fats resources can alleviate the contradicton between more people and less land in China, and is of great signifcance to the development of coastal economy and the protecton of ecological environment in China. Taking Yancheng Tidal Flats of Coastal Areas as an example, analyzes the present situaton of development and utlizaton and the existng problems at the present stage. Relying on the existng industrial foundaton, this paper puts forward the development and utlizaton model of strengthening the constructon of port-neighboring industry, towns and ecological leisure tourism on the basis of modern agriculture

Modeling Oyster Farming Activities in Coastal Areas: A Generic Framework and Preliminary Application to a Case Study

2012 ◽  
Vol 40 (5) ◽  
pp. 484-500 ◽  
Author(s):  
Cyril Tissot ◽  
David Brosset ◽  
Laurent Barillé ◽  
Laurent Le Grel ◽  
Ion Tillier ◽  
...  
Keyword(s):  
Coastal Areas ◽  
Generic Framework ◽  
Preliminary Application

scholarly journals Pengembangan Permukiman Nelayan Kingking dan Karangsari Tuban Melalui Pendekatan Urban Assemblage

2020 ◽  
Vol 18 (2) ◽  
pp. 12-23
Author(s):  
Tyas Santri ◽  
Keyword(s):  
Positive Impact ◽  
Coastal Areas ◽  
Tourism Industry ◽  
Service Industries ◽  
Surrounding Area ◽  
Field Surveys ◽  
Tourist Destinations ◽  
The Government ◽  
Cultural Strength

Indonesia is an archipelago country with a sea larger than the mainland, so it is undeniable that in Indonesia there are many fisherman settlements. Often fishermen settlements in Indonesia are marginalized in the development of maritime and service industries and even become victims of the activities of the utilization of coastal areas by the private sector engaged in tourism, industry, and services. The fisherman settlement community is not getting a positive impact from the development, therefore this study aims so that the fisherman settlement community can get a positive impact from the development of the surrounding area. This research takes a case study in the fisherman settlements of Kingking and Karangsari in Tuban Regency, East Java. The approach used in this research is the urban assemblage approach to reveal socio-cultural knits as a cultural force that shapes the sustainability of the place. The urban assemblage approach will be supported by search methods which will then be analyzed descriptively qualitatively. The search was carried out through literature review and field surveys. This research presents the results in the form of a mapping of knits between culture, social, the economy as the cultural strength of the Kingking and Karangsari fisherman settlements with the surrounding tourist areas. The results of this study can be considered by the government and local communities in planning the development of coastal areas or fisherman settlements into tourist destinations.

scholarly journals Strategi Pemberdayaan Wilayah Pesisir Dalam Menghadapi Bencana Tsunami Serta Implikasinya Terhadap Ketahanan Wilayah (Studi di Desa Bulakan, Kecamatan Cinangka, Kabupaten Serang, Banten)

2020 ◽  
Vol 26 (1) ◽  
pp. 108
Author(s):  
Syaiful Anwar ◽  
Agus Winarna ◽  
Priyanto Suharto
Keyword(s):  
Management Plan ◽  
Coastal Areas ◽  
Main Element ◽  
Good Communication ◽  
Tidal Waves ◽  
Tsunami Disaster ◽  
Analysis Technique ◽  
Prone Area

ABSTRACTSerang Regency in Banten Province is a multi-prone area of natural disaster, with the greatest potential disasters particularly like floods, landslides, earthquakes, tidal waves, tsunamis, and abrasion. At the time of the Banten tsunami at December 2018, Bulakan Village, Cinangka Subdistrict, Serang Regency was a tsunami affected area that was classified as quite severe. Natural disasters are real threats with non-military threats.The role of relevant ministries/government institutions as the main element in non-military defense also needs attention. The aim of this study is to find the root of the problems and also the solutions related to non-military defense in confronting the real threat in the form of a tsunami disaster that struck the Serang Regency. This research is using a qualitative method supported by the case-study method. All the information obtained from the defined informants was analyzed by qualitative analysis technique. This research also aims to analyze the implementation of coastal area empowerment strategies and institutional synergy mechanism implemented at Bulakan Vilage, Cinangka Subdistrict,  Serang Regency, Banten Province.The results showed that the empowerment of coastal areas in the form of institutional synergy in Serang District was carried out with a tsunami disaster management plan based on empowerment of coastal areas such as the development of coastal community disaster awareness, and compiling sustainable  plans for a tsunami disaster. Some factors that influence the implementation of the coastal areas empowering strategy in Serang Regency in facing the tsunami disaster are community supports and good communication among the stakeholders.ABSTRAK           Kabupaten Serang di Provinsi Banten merupakan wilayah multirawan bencana, dengan potensi bencana  terbesar yang meliputi banjir, tanah longsor, gempa, gelombang pasang, tsunami, dan abrasi. Pada saat tsunami yang menerjang Selat Sunda pada Desember 2018 lalu, Desa Bulakan, Kecamatan Cinangka, Kabupaten Serang merupakan daerah terdampak tsunami yang tergolong cukup parah. Bencana alam merupakan ancaman nyata berdimensi ancaman nir-militer. Peran kementerian/ lembaga pemerintah terkait sebagai unsur utama dalam pertahanan nir-militer juga perlu mendapat perhatian, sehingga ditemukan akar permasalahan dan solusi terkait pertahanan nir-militer dalam menghadapi anacaman nyata berupa bencana tsunami yang melanda wilayah Kabupaten Serang. Penelitian ini menerapkan metode kualitatif yang didukung oleh metode penelitian studi kasus. Informasi yang didapatkan dari para narasumber yang dituju selanjutnya dibahas dengan menerapkan teknik analisis kualitatif. Penelitian ini bertujuan menganalisis implementasi strategi pemberdayaan wilayah pesisir dan mekanisme sinergitas kelembagaan yang dilaksanakan di wilayah Desa Bulakan, Kecamatan Cinangka, Kabupaten Serang, Provinsi Banten. Hasil dari kajian ini memperlihatkan bahwa pemberdayaan wilayah pesisir di Desa Bulakan  dalam bentuk sinergitas kelembagaan di Kabupaten Serang dilakukan dengan rencana aksi penanggulangan bencana tsunami berbasis pemberdayaan wilayah pesisir yang meliputi pembinaan kesadaran bencana masyarakat pesisir, dan menyusun rencana simulasi bencana tsunami berkelanjutan. Faktor-faktor yang mempengaruhi terselenggaranya strategi pemberdayaan wilayah pesisir di wilayah Serang dalam menghadapi bencana tsunami adalah dukungan masyarakat dan komunikasi yang baik antara para pemangku kepentingan

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