Academic literature on the topic 'Equatorial front'

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Journal articles on the topic "Equatorial front"

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Goh, Jia Quan, Abdul Rashid Mohamed Shariff, and Nazmi Mat Nawi. "Application of Optical Spectrometer to Determine Maturity Level of Oil Palm Fresh Fruit Bunches Based on Analysis of the Front Equatorial, Front Basil, Back Equatorial, Back Basil and Apical Parts of the Oil Palm Bunches." Agriculture 11, no. 12 (2021): 1179. http://dx.doi.org/10.3390/agriculture11121179.

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The quality of palm oil depends on the maturity level of the oil palm fresh fruit bunch (FFB). This research applied an optical spectrometer to collect the reflectance data of 96 FFB from unripe, ripe, and overripe classes for the maturity level classification. The spectrometer scanned the FFB from different parts, including apical, front equatorial, front basil, back equatorial, and back basil. Principal component analysis was carried out to extract principal components from the reflectance data of each of the parts. The extracted principal components were used in an ANOVA test, which found t
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Jiang, Chuan-li, Jian Lu, and De-xing Wu. "Fluid exchange across the equatorial front." Chinese Journal of Oceanology and Limnology 19, no. 2 (2001): 112–18. http://dx.doi.org/10.1007/bf02863034.

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Perez, Renellys C., Meghan F. Cronin, and William S. Kessler. "Tropical Cells and a Secondary Circulation near the Northern Front of the Equatorial Pacific Cold Tongue*." Journal of Physical Oceanography 40, no. 9 (2010): 2091–106. http://dx.doi.org/10.1175/2010jpo4366.1.

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Abstract Shipboard measurements and a model are used to describe the mean structure of meridional–vertical tropical cells (TCs) in the central equatorial Pacific and a secondary circulation associated with the northern front of the cold tongue. The shape of the front is convoluted by the passage of tropical instability waves (TIWs). When velocities are averaged in a coordinate system centered on the instantaneous position of the northern front, the measurements show a near-surface minimum in northward flow north of the surface front (convergent flow near the front). This convergence and inferr
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Abad, Rubén, Karla B. Jaramillo, Divar Castro, Juan A. Sánchez, and Jenny Rodríguez. "Octocoral Distribution Patterns at the Equatorial Front (Tropical Eastern Pacific): Muricea and Leptogorgia." Oceans 3, no. 2 (2022): 218–30. http://dx.doi.org/10.3390/oceans3020016.

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The Equatorial Front, in the southern part of the Tropical Eastern Pacific (TEP) region, has been characterized as a hotspot of functional biodiversity due to the mixing of warm and cold waters. Nevertheless, the biogeographic patterns for some organisms, such as octocorals, remain unknown in some coastal regions. Therefore, we aimed to assess the distribution of two common octocoral genera in this area, Muricea and Leptogorgia, including 14 species based on museum specimen records, along the mainland coast of Ecuador. Statistical analyses were performed on the environmental and geographical p
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Jouanno, Julien, Frédéric Marin, Yves du Penhoat, and Jean-Marc Molines. "Intraseasonal Modulation of the Surface Cooling in the Gulf of Guinea." Journal of Physical Oceanography 43, no. 2 (2013): 382–401. http://dx.doi.org/10.1175/jpo-d-12-053.1.

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Abstract A regional numerical model of the tropical Atlantic Ocean and observations are analyzed to investigate the intraseasonal fluctuations of the sea surface temperature at the equator in the Gulf of Guinea. Results indicate that the seasonal cooling in this region is significantly shaped by short-duration cooling events caused by wind-forced equatorial waves: mixed Rossby–gravity waves within the 12–20-day period band, inertia–gravity waves with periods below 11 days, and equatorially trapped Kelvin waves with periods between 25 and 40 days. In these different ranges of frequencies, it is
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Xie, Shang-Ping, Masaki Ishiwatari, Hiroshi Hashizume, and Kensuke Takeuchi. "Coupled ocean-atmospheric waves on the equatorial front." Geophysical Research Letters 25, no. 20 (1998): 3863–66. http://dx.doi.org/10.1029/1998gl900014.

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Hormann, Verena, Rick Lumpkin, and Renellys C. Perez. "A Generalized Method for Estimating the Structure of the Equatorial Atlantic Cold Tongue: Application to Drifter Observations." Journal of Atmospheric and Oceanic Technology 30, no. 8 (2013): 1884–95. http://dx.doi.org/10.1175/jtech-d-12-00173.1.

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Abstract A generalized method is developed to determine the position of the Atlantic northern cold tongue front across its zonal extent from satellite sea surface temperature (SST) data. Previous approaches estimated the frontal position subjectively or individually, calling for a more objective technique that is suitable for large datasets. The developed methodology is based on a median frontal SST, and associated positional uncertainties are on the order of 0.3° latitude for the period 1998–2011. Frontal characteristics are generally consistent with tropical instability waves (TIWs) and inte
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Contreras, Robert F. "Long-Term Observations of Tropical Instability Waves." Journal of Physical Oceanography 32, no. 9 (2002): 2715–22. http://dx.doi.org/10.1175/1520-0485-32.9.2715.

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Abstract Reynolds sea surface temperature (SST) data showing tropical instability waves (TIWs) in the tropical Pacific are analyzed along with current measurements from the Tropical Atmosphere–Ocean (TAO) buoy array and wind speeds from the European Remote Sensing Satellite (ERS) -1 and -2 scatterometers. TIWs are visible as undulations in the SST cold fronts that delineate the northern and southern boundaries of the cold tongue in the equatorial Pacific. The SST pattern results from advection of the SST front by instabilities in the near-surface equatorial currents. Although the waves are see
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Anderson, Steven P. "On the Atmospheric Boundary Layer over the Equatorial Front*." Journal of Climate 14, no. 7 (2001): 1688–95. http://dx.doi.org/10.1175/1520-0442(2001)014<1688:otablo>2.0.co;2.

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Giordani, Hervé, and Guy Caniaux. "Lagrangian sources of frontogenesis in the equatorial Atlantic front." Climate Dynamics 43, no. 11 (2014): 3147–62. http://dx.doi.org/10.1007/s00382-014-2293-3.

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Dissertations / Theses on the topic "Equatorial front"

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O'Hern, Julia. "Cetacean Distribution in Ecuador: Spatial and Temporal Relationships between Ocean Fronts and the Apex Predator Population." Thesis, 2012. http://hdl.handle.net/1969.1/148305.

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Five line transect surveys for marine mammals were conducted offshore of mainland Ecuador and the Galápagos Islands from 2008-2011. These data were used in conjunction with MODIS (Moderate Resolution Imaging Spectroradiometer) observations of ocean color and sea surface temperature (SST) to assess spatial and temporal relationships between surface oceanographic features and cetacean distribution within the Eastern Equatorial Pacific (EEP). Results from this study indicated that oceanographic processes affected cetacean distribution on inter-annual, seasonal, and weekly to monthly time scales.
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才野, 敏郎. "炭素・窒素安定同位体比を指標とする海洋表層の生物地球化学過程の研究". 1998. http://hdl.handle.net/2237/13048.

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Books on the topic "Equatorial front"

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Dunlop, Storm. 3. Global weather systems. Oxford University Press, 2017. http://dx.doi.org/10.1093/actrade/9780199571314.003.0003.

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Air may seem hot and humid, hot and dry, damp and cold, or freezing cold. Vigorous weather systems may create abrupt changes when one air mass replaces another with distinct properties. ‘Global weather systems’ explains that air masses can be classified into categories based on the humidity and temperature of their source region: arctic or antarctic continental, polar continental, tropical continental, arctic maritime, polar maritime, tropical maritime, and equatorial maritime. The boundary between two air masses with differing temperatures and humidities is known as a front and there are thre
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Book chapters on the topic "Equatorial front"

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Jansen, J. H. F., E. Ufkes, and R. R. Schneider. "Late Quaternary Movements of the Angola-Benguela Front, SE Atlantic, and Implications for Advection in the Equatorial Ocean." In The South Atlantic. Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/978-3-642-80353-6_28.

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Sundiata, Ibrahim. "Equatorial Guinea: The Struggle for a Cocoa Economy, 1880–1930." In Cocoa Pioneer Fronts since 1800. Palgrave Macmillan UK, 1996. http://dx.doi.org/10.1007/978-1-349-24901-5_6.

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Rosenthal, Gregory. "Kailiopio and the Tropicbird." In Beyond Hawai'i. University of California Press, 2018. http://dx.doi.org/10.1525/california/9780520295063.003.0005.

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Another front of extractive industry in the 1850s and 1860s was guano mining. Kailiopio was one of approximately one thousand Native Hawaiian men who worked on remote equatorial Pacific Islands mining bird guano. Chapter four bridges themes in animal studies and the history of the body to explore the guano “workscape.” The guano island work environment was a hybrid world made and maintained interdependently by both human and avian actors. Millions of nesting seabirds, and their engagements in transoceanic “work”—connecting distant feeding grounds with local breeding grounds—constituted the “na
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Anthony Chen, Abraham, and Trevor Falloon. "Monitoring Agricultural Drought in the West Indies." In Monitoring and Predicting Agricultural Drought. Oxford University Press, 2005. http://dx.doi.org/10.1093/oso/9780195162349.003.0019.

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The core of the West Indies consists of the archipelago of islands that stretches southeast from the Yucatan and Florida peninsulas to Venezuela. Generally the term “West Indies” is synonymous with the “Antilles” and is therefore often used to refer to the islands that compose the Greater and Lesser Antilles. The islands of the Greater Antilles include Cuba, Hispaniola, Puerto Rico, and Jamaica—all located in the north Caribbean Sea—while the Lesser Antilles encompasses the smaller islands found to the south and east. In total, the West Indies embraces about 25 island territories. There are co
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Conference papers on the topic "Equatorial front"

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Perl, M., and V. Berenshtein. "Three-Dimensional Stress Intensity Factors for Ring Cracks and Arrays of Coplanar Cracks Emanating From the Inner Surface of a Spherical Pressure Vessel." In ASME 2013 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/pvp2013-97006.

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Certain spherical pressure vessels are composed of two hemispheres joined together by a girth weld. These vessels are susceptible to multiple cracking along the weld resulting in one or more cracks developing from the inner surface of the vessel and creating either a ring (circumferential) crack, or an array of coplanar cracks on the equatorial-weld plane. In order to assess the fracture endurance and the fatigue life of such vessels it is necessary to evaluate the Stress Intensity Factors (SIF) distribution along the fronts of these cracks. However, to date, only two solutions for the SIF for
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