Journal articles on the topic 'Seaside circulation'
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1
Kurshunova, I. A., and E. R. Guseva. "Karelian Seaside in a Linguistic Context." Nauchnyi dialog 1, no. 10 (October 31, 2020): 62–95. http://dx.doi.org/10.24224/2227-1295-2020-10-62-95.
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The current state of the study of Russian dialects in Karelian Seaside is analyzed, the territory of the studied region, which coincides with the boundaries of the dialectal division of the Russian language in 1915 is indicated. It is shown that the exclusion of Karelian Seaside from the dialectal division of 1965, which was an indirect reason for the lack of proper research attention to this region is unjustified. An overview of linguistic works devoted to the study of various language levels (phonetic, grammatical, lexical) is presented. The review of dictionaries, including the vocabulary of Russian dialects of the Karelian Seaside, is carried out. The prospects and objectives of the study are determined. In particular, future research is associated with comparative work on the study of the preservation / change of linguistic phenomena at each level, including the lexical one, which is the most stable in its main core. It is primarily due to extralinguistic reasons. Particular attention is paid to the use of digital technologies when creating a textual database, tested on the materials of the Karelian Seaside. It is noted that the electronic resource will make it possible to constantly introduce new data into scientific circulation, connecting them to various aspects of research, both linguistic and broader humanitarian.
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Jiao, Mingxiao. "The Influence and Causes of the Walker Circulation, and Measures to Mitigate its Hazards." Highlights in Science, Engineering and Technology 50 (May 21, 2023): 194–99. http://dx.doi.org/10.54097/hset.v50i.8538.
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In the context of the world's increasingly damaged ecological environment, rare natural disaster phenomena occur from time to time in seaside cities worldwide. Scientists later found that such irregular disasters are regular due to the instability of the Walker circulation, weakening to produce the El Niño phenomenon and strengthening to make the La Niña phenomenon. Based on this background, we not only have to think about the impact of various natural disasters generated by the Walker circulation on the ecology and economy of the world. This paper adds to the list of phenomena and effects of the Walker circulation that have not been systematically summarized over the years and expands on how to avoid large-scale disasters in the context of the Walker circulation, providing a more purposeful and distinctive organization of the research direction of the Walker circulation. This paper finds that both El Niño and La Niña caused by the Walker circulation have influenced the ecological and economic environment of the world. In the future, we can explore ways to smooth the Walker Circulation through research or to reduce the harm brought by the Walker Circulation to the world more purposefully and efficiently, to reduce its uncertainty, and to create an excellent and smooth background for the future of agriculture and commerce, so that the global community of interests can develop steadily.
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Ishikawa, Seiichi, Toshikazu Oba, Yoshio Nomura, Kenichi Ichida, Yoshio Sakazaki, Tsutomu Kojima, Maki Fukumoto, et al. "Study of Leachate Purification and Waste Stabilization at a Seaside Land Reclamation Site Using a Leachate Circulation System Pilot Plant." Journal of the Japan Society of Waste Management Experts 18, no. 2 (2007): 107–17. http://dx.doi.org/10.3985/jswme.18.107.
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Gan, Jianping, Ho San Ho, and Linlin Liang. "Dynamics of Intensified Downwelling Circulation over a Widened Shelf in the Northeastern South China Sea." Journal of Physical Oceanography 43, no. 1 (January 1, 2013): 80–94. http://dx.doi.org/10.1175/jpo-d-12-02.1.
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Abstract This study reveals the dynamics behind the intensified, downslope, cross-isobath transport over a widened shelf (narrowing downwave) in the northeastern South China Sea (NSCS) during a downwelling event. Utilizing a three-dimensional numerical model over an idealized NSCS shelf, this study identified the forcing process and derived an analytical understanding of the invoked dynamics for the intensified downslope cross-isobath transport. This study found that the transport was formed by an amplified geostrophic transport because of an increased positive along-isobath pressure gradient force (PGF), PY*, and by an enhanced bottom Ekman transport due to converging flow over the widened shelf. Based on the depth-integrated vorticity dynamics, PY* was linked with net frictional stress curl in the water column and the curl was primarily associated with the shear vorticity field induced by downwelling jet. The increased positive vorticity seaside of the jet provided positive PY* for the downslope geostrophic transport. The cross-isobath PGF, PX*, which was geostrophically formed and shaped by the spatially asymmetric isobaths of the widened shelf, determined the intensities of the jet and thus the associated shear vorticity that quantified the respective bottom friction transport and PY* for the intensified cross-isobath transport. It was found that the downslope transport over the widened shelf was strengthened in a stratified flow by the linked intensifications of barotropic PX* or the concurrent downwelling jet, shear vorticity field, PY*, and bottom friction because of an increase of volume flux upstream of the widened shelf.
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LOMAKIN, P. D., M. A. POPOV, and A. A. CHEPYZHENKO. "ASSESSING THE STATE OF SEA WATER BASED ON COLORED DISSOLVED ORGANIC MATTER CONCENTRATION IN THE OMEGA BAY (CRIMEA) IN SUMMER OF 2020." Meteorologiya i Gidrologiya, no. 11 (November 2021): 100–108. http://dx.doi.org/10.52002/0130-2906-2021-11-100-108.
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According to expeditionary and coastal monitoring studies carried out in 2019 and 2020, we analyzed the structure features and temporal variations of colored dissolved organic matter concentration in the Omega Bay field. It is shown that the structure of the analyzed parameter field in the Omega Bay is formed as a result of interactions in the system of local anticyclonic circulation that involves both Sevastopol seaside water, where its concentration is close to the natural normal, and water of the isolated apex part of the bay that experiences anthropogenic pressure. The field under consideration is well stratified in the apex of the bay and is characterized by poorly pronounced vertical stratification in the central and open marine part of the bay. The response to atmospheric and marine processes is traced in the field of colored dissolved organic matter concentration during the summer of 2020. It was revealed that rains and polluted water advection from the sea were accompanied by a noticeable increase in the concentration of the analyzed substance in the beach area of the bay. The opposite effect was observed during upwelling.
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Liu, Zhiqiang, and Jianping Gan. "Modeling Study of Variable Upwelling Circulation in the East China Sea: Response to a Coastal Promontory." Journal of Physical Oceanography 44, no. 4 (April 1, 2014): 1078–94. http://dx.doi.org/10.1175/jpo-d-13-0170.1.
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Abstract A three-dimensional, high-resolution numerical model is used to investigate processes and dynamics of an intensified upwelling that is induced by a coastal promontory over the East China Sea (ECS) shelf. The center of the intensified upwelling around the promontory has been constantly observed, but, so far, it has been dynamically unexplained. Forced by an idealized southeasterly wind stress, the model results well capture the observed upwelling at the lee of the coastal promontory. The intensified upwelling is formed by a strengthened shoreward transport downstream of the promontory as the upwelling jet veers shoreward. The jet is mainly controlled by a cross-shore geostrophic balance and is largely modulated by both centrifugal acceleration associated with nonlinear advection and by bottom stress. The strengthened shoreward transport is mainly attributed to the cross-shore geostrophic current that is induced by a countercurrent (negative) pressure gradient force (PGF) and partly attributed to the bottom Ekman transport. Based on the analyses of the momentum balance and depth-integrated vorticity dynamics, the authors provide a new explanation for the origin of negative PGF. It is found that the countercurrent PGF is generated by negative bottom stress curl and strengthened by negative vorticity advection downstream of the promontory. While the negative bottom stress curl arises from bottom shear vorticity, the source of negative advection downstream of the promontory is the negative shear vorticity on the seaside of the shoreward-bent jet. Nevertheless, cyclonic curvature vorticity at the bottom and positive vorticity advection in the water column at the promontory weakens the negative PGF. Although nonlinear advection strengthens vorticity advection, it weakens bottom stress curl and has little net effect on the countercurrent PGF.
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Yang, Hyun, Dong Ho Jung, Hye Won Lee, Dongoh Lee, and Byoung Seob Ko. "Tetragonia tetragonoides (Pall.) Kuntze Restores Blood Perfusion from Hind-Limb Ischemic Mice." Applied Sciences 10, no. 23 (November 30, 2020): 8562. http://dx.doi.org/10.3390/app10238562.
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Tetragonia tetragonoides (Pall.) Kuntze (TTK) is grown for the edible leaves, and can be used as food. And which commonly called Beonhaengcho in Republic of Korea. TTK is found along the seaside of the Jeju-Island and it has long been consumed as a food for women’s health. We investigated the effects of TTK on peripheral circulation disorder during menopausal transition and/or menopause in a hind-limb ischemic (HLI) mouse model. Chemotactic motility and tube formation of vascular epithelial cells were evaluated in human umbilical vein endothelial cells (HUVECs). Female C57BL/6 mice were fed a TTK (150 or 450 mg/kg/day) for four weeks and the rate of blood flow was assessed using a laser Doppler after HLI. TTK treatment significantly increased cell migration and the branch interval value of tubular structure in a dose-dependently. In the TTK treatment group, blood flow rate was significant induced at 7, 14, and 28 days after HLI, compared with the vehicle. TTK treatment also an increase in capillary density, and the highest levels of pERK(1/2), pAkt, pPLCγ1 and pFAK proteins compared to the vehicle control. These results suggest that extract of TTK may ameliorate the blood flow via improvement of peripheral angiogenesis under hind-limb ischemic stress in a menopausal mouse model.
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Cosoli, Simone, Charitha Pattiaratchi, and Yasha Hetzel. "High-Frequency Radar Observations of Surface Circulation Features along the South-Western Australian Coast." Journal of Marine Science and Engineering 8, no. 2 (February 5, 2020): 97. http://dx.doi.org/10.3390/jmse8020097.
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A new merged high-frequency radar (HFR) data set collected using SeaSonde and WERA (WEllen RAdar) systems was used to examine the ocean surface circulation at diurnal, seasonal and inter-annual time scales along the south-west coast of Australia (SWWA), between 29°–32° S. Merging was performed after resampling WERA data on the coarser SeaSonde HFR grid and averaging data from the two HFR systems in the area of common overlap. Direct comparisons between WERA and SeaSonde vectors in their overlapping areas provided scalar and vector correlation values in the range Ru = [0.24, 0.76]; Rv = [0.39, 0.83]; ρ = [0.44, 0.75], with mean bias between velocity components in the range [−0.02, 0.28] ms−1, [−0.16, 0.16] ms−1 for the U, V components, respectively. The lower agreement between vectors was obtained in general at the boundaries of the HFR domains, where the combined effects of the bearing errors, geometrical constraints, and the limited angular field of view were predominant. The combined data set allowed for a novel characterization of the dominant features in the region, such as the warmer poleward-flowing Leeuwin Current (LC), the colder Capes Current (CC) and its northward extensions, the presence of sub-mesoscale to mesoscale eddies and their generation and aggregation areas, along with the extent offshore of the inertial-diurnal signal. The contribution of tides was weak within the entire HFR domain (<10% total variance), whilst signatures of significant inertial- and diurnal-period currents were present due to diurnal–inertial resonance. A clear discontinuity in energy and variance distribution occurred at the shelf break, which separates the continental shelf and deeper offshore regions, and defined the core of the LC. Confined between the LC and the coastline, the narrower and colder CC current was a feature during the summer months. Persistent (lifespan greater than 1 day) sub-mesoscale eddies (Rossby number O (1)) were observed at two main regions, north and south of 31.5° S, offshore of the 200 m depth contour. The majority of these eddies had diameters in the range 10–20 km with 50% more counter clockwise rotating (CCW) eddies compared to clockwise (CW) rotating eddies. The northern region was dominated by CCW eddies that were present throughout the year whilst CW eddies were prevalent in the south with lower numbers during the summer months.
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Lorente, P., S. Piedracoba, J. Soto-Navarro, and E. Alvarez-Fanjul. "Evaluating the surface circulation in the Ebro delta (northeastern Spain) with quality-controlled high-frequency radar measurements." Ocean Science 11, no. 6 (November 26, 2015): 921–35. http://dx.doi.org/10.5194/os-11-921-2015.
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Abstract. The Ebro River delta is a relevant marine protected area in the western Mediterranean. In order to promote the conservation of its ecosystem and support operational decision making in this sensitive area, a three-site standard-range (13.5 MHz) CODAR SeaSonde high-frequency (HF) radar was deployed in December 2013. The main goal of this work is to explore basic features of the sea surface circulation in the Ebro deltaic region as derived from reliable HF radar surface current measurements. For this aim, a combined quality control methodology was applied: firstly, 1-year long (2014) real-time web monitoring of nonvelocity-based diagnostic parameters was conducted to infer both radar site status and HF radar system performance. The signal-to-noise ratio at the monopole exhibited a consistent monthly evolution, although some abrupt decreases (below 10 dB), occasionally detected in June for one of the radar sites, impacted negatively on the spatiotemporal coverage of total current vectors. It seemed to be sporadic episodes since radar site overall performance was found to be robust during 2014. Secondly, a validation of HF radar data with independent in situ observations from a moored current meter was attempted for May–October 2014. The accuracy assessment of radial and total vectors revealed a consistently high agreement. The directional accuracy of the HF radar was rated at better than 8°. The correlation coefficient and root mean square error (RMSE) values emerged in the ranges [0.58–0.83] and [4.02–18.31] cm s−1, respectively. The analysis of the monthly averaged current maps for 2014 showed that the HF radar properly represented basic oceanographic features previously reported, namely, the predominant southwestward flow, the coastal clockwise eddy confined south of the Ebro delta mouth, or the Ebro River impulsive-type freshwater discharge. The EOF analysis related the flow response to local wind forcing and confirmed that the surface current field evolved in space and time according to three significantly dominant modes of variability.
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Lorente, P., S. Piedracoba, J. Soto-Navarro, and E. Alvarez-Fanjul. "A combined quality-control methodology in Ebro Delta (NE Spain) high frequency radar system." Ocean Science Discussions 12, no. 4 (August 24, 2015): 1913–52. http://dx.doi.org/10.5194/osd-12-1913-2015.
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Abstract. Ebro River Delta is a relevant marine protected area in the western Mediterranean. In order to promote the conservation of its ecosystem and support operational decision making in this sensitive area, a three site standard-range (13.5 MHz) CODAR SeaSonde High Frequency (HF) radar was deployed in 2013. Since there is a growing demand for reliable HF radar surface current measurements, the main goal of this work is to present a combined quality control methodology. Firstly, one year-long (2014) real-time web monitoring of nonvelocity-based diagnostic parameters is conducted in order to infer both radar site status and HF radar system performance. Signal-to-noise ratio at the monopole exhibited a consistent monthly evolution although some abrupt decreases (below 10 dB), occasionally detected in June for one of the radar sites, impacted negatively on the spatiotemporal coverage of total current vectors. It seemed to be a sporadic episode since radar site overall performance was found to be robust during 2014. Secondly, a validation of HF radar data with independent in situ observations from a moored current meter was attempted for May–October 2014. The accuracy assessment of radial and total vectors revealed a consistently high agreement. The directional accuracy of the HF radar was rated at better than 8°. The correlation coefficient and RMSE values emerged in the ranges 0.58–0.83 and 4.02–18.31 cm s−1, respectively. The analysis of the monthly averaged current maps for 2014 showed that the HF radar properly represented basic oceanographic features previously reported, namely: the predominant southwestward flow, the coastal clockwise eddy confined south of Ebro Delta mouth or the Ebro River impulsive-type freshwater discharge. Future works should include the use of verified HF radar data for the rigorous skill assessment of operational ocean circulation systems currently running in Ebro estuarine region like MyOcean IBI.
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"Research and control of water circulation and structures of the thermochaline field in Omega Bay (Crimea) in the summer-autumn period 2019." Monitoring systems of environment, no. 3 (September 24, 2020): 15–22. http://dx.doi.org/10.33075/2220-5861-2020-3-15-22.
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Based on the data of two expeditions carried out in August and November 2019, the water circulation and the structure of the thermohaline field in Omega Bay are analyzed. A well-known idea on the predominantly wind nature of currents in the Sevastopol bays is confirmed. In August, under the influence of the north wind, a south-west oriented coastal wind current was observed in the Sevastopol seaside adjacent to the bay. Its speed in the upper and middle layers varied from 15 to 40 cm /s and from 10 to 15 cm /sec – at the bottom. The branch of this stream directed to the bay, interacting with the bottom rising located in its central part, contributed to the formation of an anticyclone water circulation cell. A similar dynamic situation in Omega Bay, but under conditions of a weaker and oppositely directed alongshore current, was also observed in November. It is shown that the anticyclone topographic eddy, found in the central part of Omega Bay is quasi stationary and has a topographic nature. In the structure of the thermohaline field, signs have been revealed that confirm the anticyclone nature of the local water circulation in Omega Bay, as well as the typical coastal current system generated by the wind surge, which was recorded in the August survey. In November, under the influence of convective mixing, the thermohaline field in the studied water area was more uniform. It is shown that, in contrast to relatively homogeneous waters of the most part of the bay water area, vertical stratification and frontal horizontal structure of the thermohaline field are characteristic of its kut region.
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Lorente, Pablo, Jue Lin-Ye, Manuel García-León, Emma Reyes, Maria Fernandes, Marcos Garcia Sotillo, Manuel Espino, et al. "On the Performance of High Frequency Radar in the Western Mediterranean During the Record-Breaking Storm Gloria." Frontiers in Marine Science 8 (March 10, 2021). http://dx.doi.org/10.3389/fmars.2021.645762.
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Storm Gloria (January 19–24, 2020) hit the NW Mediterranean Sea with heavy rainfall, strong easterly winds, and very high waves, causing structural damages and 13 fatalities. The low-lying Ebro Delta (ED) region was severely inundated, ruining rice fields and seaside promenades. A variety of Copernicus Marine Environment Monitoring Service (CMEMS) modeling and observational products were jointly used to examine the fingerprint of Gloria and the response of the upper oceanic layer. According to the results, Gloria can be interpreted as a high-impact once-in-a-decade metocean event where various historical records were beaten. The 99th percentile of several parameters (wind speed, significant wave height, wave period, and surface current velocity), derived from long-term observational time series, was persistently exceeded. The atmospheric surge, albeit not negligible, exerted a secondary role in ED. The ability of a high-frequency radar deployed in this region (HFR-ED) to characterize the striking features of the storm was quantified from both waves and circulation aspects. Consistent radar current observations were subsequently compared against the 5-day-ahead forecast of CMEMS Iberia-Biscay-Ireland (IBI) regional ocean model to determine, from an Eulerian perspective, the strengths and shortcomings in its predictive capabilities. Time-averaged maps of surface circulation, superimposed with fields of Instantaneous Rate of Separation (IROS), were derived to resolve flow features and identify areas of elevated particles dispersion, respectively. The mean and P99 values of IROS almost doubled the historical statistics in the vicinity of the northern Ebro hemidelta. Although IBI predicted moderately well basic features of the storm-induced circulation, results suggests that coastal transport processes, likely modulated by wave-current interactions, were not fully captured. Furthermore, current estimations from other two radar systems, overlooking immediate choke points like the Ibiza Channel and the Strait of Gibraltar, evidenced Gloria’s remote-effect in the anomalous circulation patterns observed, that altered the usual water exchanges between adjacent sub-basins. Finally, three-dimensional outcomes from IBI were used to elucidate the impact of this moving storm at different depth levels. Data analyses illustrated that Gloria caused a large increase in kinetic energy and a significant deepening of the mixed layer depth.
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Kozłowski, Tomasz. "From Strikes to Solidarity: The Diffusion of Protests in Poland in the Summer of 1980." East European Politics and Societies: and Cultures, September 9, 2020, 088832542095348. http://dx.doi.org/10.1177/0888325420953483.
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This article analyzes the wave of strikes that flooded Poland in 1980 and their effect on the birth of a social movement. It retraces the process of emerging protests and their spread throughout factories and regions. It also discusses the role of the Interfactory Strike Committees and shows the mechanisms of circulation of newsletters and leaflets published by strikers. The article demonstrates how the spread of information influenced the rate and scale of mobilization. The author focuses on the role of social networks and the mechanisms that enabled diffusion of the elements of this social movement. The spread of the protests to other cities relied largely on direct contact between individual factories but was also facilitated by the independent press and audio recordings. The analysis also addresses the role of “brokers,” that is, people who disseminated information about the strike and increased the range of the protests. These “political tourists” observed the protests while on vacation or on business at the seaside and, on returning home, reported what they had seen, often bringing back strike-related information leaflets. The other group comprised “political emissaries” or people who intentionally established contact between individual protest centres. The article thus retraces the emergence of Solidarity starting from spontaneous strikes to the formation of a nationwide organization.
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Jeong, Jae-Soon, Han Soo Lee, and Nobuhito Mori. "Abnormal high tides and flooding induced by the internal surge in Hiroshima Bay due to a remote typhoon." Frontiers in Marine Science 10 (June 22, 2023). http://dx.doi.org/10.3389/fmars.2023.1148648.
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The Itsukushima Shrine is located in northern Hiroshima Bay in the Seto Inland Sea (SIS). This structure of great cultural value is preserved as one of the World Heritage Sites in Japan. The shrine was built seaside, 30 cm above the highest tide, to prevent it from submerging. However, from 2011 to 2019, the shrine was submerged four times during September due to internal surges. To study the abnormal tide event on 29 September 2011, a high-resolution numerical ocean circulation model was established using Semi-implicit Cross-scale Hydroscience Integrated System Model (SCHISM). Observed subtidal components of surface elevation in the northern part of the bay decreased due to northerly winds when the typhoon passed east off the bay. After 7–8 days of typhoon passage, the component increased abnormally in the northern part of the bay. Simulation results revealed that a destabilized density stratification by the typhoon winds most likely caused bay-scale internal waves. The internal wave developed after the typhoon passed and was caught from the kinetic energy filtered in the possible internal wave periods. The internal wave propagated southward after the typhoon passage and returned to the northern bay, causing the subtidal component to increase after 7–8 days. Sensitivity tests with various scales of the typhoon were performed, and the test results exhibited a positive relationship between the abnormal tide level and typhoon intensity to some extent. The results can be generally applied to a semi-closed bay or closed water body for internal wave generation and propagation under specific meteorological conditions for coastal protection and disaster prevention.
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Acharyya, A., B. Sengupta, and R. N. Ghosh. "Mid-1997 tidal surge of Bay of Bengal at Digha on the East Coast of India: Its damage evaluation and mitigation." Journal of Nepal Geological Society 21 (July 1, 2000). http://dx.doi.org/10.3126/jngs.v21i0.32163.
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The sea resort of Digha (21° 37' N: 87° 31' E) on the east coast of India runs the risk of natural disasters due to frequent development of atmospheric depressions in the bay of Bengal. A 3.7 km sea-wall (brick/concrete/boulder embankment) was built long back to protect the ENE-WSW coastline of this sea resort from erosion vis-a-vis wave action.
An unusual tidal surge struck the Digha coast on 20 August 1997 causing extensive damage to the seawall, various structures within CRZ-11 and natural landscape. The Geological Survey of India (GSI) studied the cause and effect of this natural calamity. A deep depression was formed in the northern Bay of Bengal and the eye of anticlockwise circulation of wind from east to west became incremental with the attainment of minimum atmospheric pressure at the coast. The maximum wind speed was at 8:30 in the morning of 20 August 1997, which was second lunar day next to the full moon, and the highest spring tide was anticipated at 10:00. Besides, this was a period of autumn equinoctial tides when maximum tide raising forces were expected. This highest spring tide coupled with the easterly high velocity wind and prevailing longshore current of the sea towards ENE resulted in abnormal tidal surges for nearly one hour on 20 August 1997 (around 10:00). The sea at Digha otherwise attains an average of highest wave-crest height ranging between 3.5 m and 4.0 m above msl. The plunging breakers were reported to have risen that day 10 a wave crest height of about 6.4 m above msl and they overtopped the seawall upper level having 5.4 m of average Reference Level. About 378 million litres of seawater spilled over the wall and returned to the sea in just one hour's time by breaking the wall in the weak zones and adjoining structures. Geological parameters, measured in the natural selling of beach-coastline dunes, revealed marked changes in the magnitude of beach dimensions; lowering of beach front dune top by 2.46 m and erosion of the beach surface by 0.65 m constitute the direct fall out of this tidal surge.
The GSI recommended both short- and long-term mitigation measures to minimise effects of such natural disasters. These included, interalia, a design of an ideal seawall with three consecutive foundation piles and one seaside sheet pile: lined drains to ease the surface runoff especially in case of overtopping by surges; provision for landslide filter drain and seaside geotextile apron, and systematic network of sewerage.
As of now, the largely damaged part of the sea-wall has been newly laid by a 28.0 m wide concrete: ramp with 2.44 m deep sheet pile in the seaward side. Lined surface drain and impermeable filter drain of clay have been constructed behind the seawall. Raising of vertical height of the sea-wall and laying of sewerage network have also commenced. In addition, the proposal of laying geotextile mat in the unrestored part of the wall is on the anvil.
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Pinto-Júnior, Jonas Sérgio do Rêgo, Camila Kayssa Targino-Dutra, Ana Beatriz Gomes-Ferreira, Juliana Garcia Vidal-Rodrigues, and Sueli Aparecida Moreira. "Paradoxos do turismo sustentável: implicações de ordem ambiental e econômica do tráfego de veículos nas dunas e à beira-mar de Jacumã (RN)." Revista Brasileira de Ecoturismo (RBEcotur) 10, no. 4 (November 24, 2017). http://dx.doi.org/10.34024/rbecotur.2017.v10.6630.
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O presente estudo busca verificar os danos e/ou impactos ambientais decorrentes do tráfego de viaturas e veículos movidos à combustão nas dunas de Jacumã/RN, bem como os benefícios econômicos que os mesmos oferecem e disponibilizam com a prática de passeios turísticos e passeios de aventura sem fins lucrativos. A metodologia é de natureza qualitativa, por meio da obtenção de depoimentos de representantes de instituições: IBAMA, IDEMA, JEEP CLUBE NATAL, Secretaria Estadual de Turismo, Projeto Tamar, comerciantes locais e o Sindicato dos Buggueiros. Os depoimentos compreenderam questões sobre impactos negativos ao meio ambiente e sobre a importância do turismo de aventura (tráfego de veículos) do ponto de vista econômico. O principal impacto observado foi em relação à circulação de veículos à beira mar e sobre a restinga. O passeio restrito sobre dunas não oferece tanto impacto à natureza. O passeio de buggy é consolidado como atrativo único e tem boa aprovação pela comunidade local. O planejamento turístico de modo sustentável pode conciliar estratégias de redução de impacto ambiental atreladas ao desenvolvimento econômico e melhor inserção da comunidade na atividade turística.
Paradoxes of sustainable tourism: implications of environmental and economic dimension on vehicle traffic in the dunes and seafront of Jacumã (RN, Brazil)
ABSTRACT
This study aimed to verify the environmental impacts of vehicular traffic and vehicles powered by combustion in the Jacumã / RN dunes, as well as to understand the economic benefits derived from the practice of non-profit tours and adventure tours. The methodology is qualitative, with statements from representatives of institutions: IBAMA, IDEMA, JEEP CLUBE NATAL, State Secretary of Tourism, Tamar Project, local merchants and the Buggueiros Union. The statements included questions about negative impacts on the environment and the importance of adventure tourism (vehicle traffic) from an economic point of view. The main impact was observed in relation to the circulation of vehicles at the seaside and on the restinga vegetation. The buggy ride is consolidated as a good tourist attraction and has good approval by the local community. It is therefore concluded that tourism planning in a sustainable way can conciliate strategies of reduction of environmental impact linked to the economic development and better insertion of the community in the tourist activity.
KEYWORDS: Ecological Tourism, Permanent Preservation Areas, Sustainable Tourism; Potiguar Dunes.
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Jufri, Alan J., Adrian Umboh, and Nurhayati Masloman. "PERBEDAAN TEKANAN DARAH PADA ANAK YANG TINGGAL DI PEGUNUNGAN DAN TINGGAL DI TEPI PANTAI." e-CliniC 3, no. 1 (January 23, 2015). http://dx.doi.org/10.35790/ecl.3.1.2015.7403.
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Abstract: Blood pressure is the force that is necessary for blood to flow in blood vessels and circulation to all parts of the human body. The air pressure in the mountains is lower than at the beach, this causes increased erythrocyte production, which results in increased viscocity and resistance. This study aimed to determine the difference in blood pressure among children who live in the mountains and at the seaside. This was an observational survey with a cross sectional design. Samples taken to represent the two major populations were elementary students Wulurmaatus Modoinding, South Minahasa (mountain area) and elementary students Inpres 12/79 Wangurer, Madidir Bitung (beach area). In the target population sampling is done by simple random sampling and at affordable population sampling conducted consecutive sampling. Found as many as 28 boys in the mountains and 24 boys on the beach with an average TDS respectively 90.3 mmHg and 94.1 mmHg (ρ = 0.126) and the average TDD respectively 62, 1 mmHg and 64.7 mmHg (ρ = 0.146). And as many as 25 girls in the mountains and 28 girls on the beach with an average TDS respectively 88.7 mmHg and 93.5 mmHg (ρ = 0.065) and the average TDD found respectively 63.7 mmHg and 66 mmHg (ρ = 0.139). From the results obtained it can be concluded that there was no difference in blood pressure (systolic and diastolic) in children who live in the mountains and at the seaside.Keywords: blood pressure, children, mountains, beach frontAbstrak: Tekanan darah merupakan kekuatan yang diperlukan agar darah dapat mengalir di dalam pembuluh darah dan beredar ke seluruh bagian tubuh manusia. Tekanan udara di pegunungan lebih rendah di bandingkan di tepi pantai; hal ini meningkatkan produksi eritrosit, yang mengakibatkan peningkatan viskositas serta resistensi, Penelitian ini bertujuan untuk mengetahui perbedaan tekanan darah pada anak yang tinggal di pegunungan dan di tepi pantai. Penelitian ini bersifat survei observasional dengan rancangan potong lintang. Sampel diambil mewakili ke dua populasi, yaitu siswa SD Inpres Wulurmaatus Kecamatan Modoinding, Kabupaten Minahasa Selatan (pegunungan) dan siswa SD Inpres 12/79 Wangurer, Kecamatan Madidir Kota Bitung (tepi pantai). Pada populasi target pengambilan sampel dilakukan secara simple random sampling dan pada populasi terjangkau pengambilan sampel dilakukan secara consecutive sampling. Ditemukan sebanyak 28 anak laki-laki di pegunungan dan 24 anak laki-laki di tepi pantai dengan rata-rata TDS masing-masing 90,3 mmHg dan 94,1 mmHg (ρ=0,126) serta rata-rata TDD masing-masing 62,1 mmHg dan 64,7 mmHg (ρ=0,146). Sebanyak 25 anak perempuan di pegunungan dan 28 anak perempuan di tepi pantai dengan rata-rata TDS masing-masing 88,7 mmHg dan 93,5 mmHg (ρ=0,065) serta rata-rata TDD ditemukan masing-masing 63,7 mmHg dan 66 mmHg (ρ= 0,139). Simpulan: Tidak terdapat perbedaan tekanan darah (sistolik dan diastolik) pada anak yang yang tinggal di pegunungan dan di tepi pantai.Kata kunci: tekanan darah, anak, pegunungan, tepi pantai