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单词 pycnocline
释义

pycnocline in American English

(ˈpɪknəˌklaɪn)
noun
a layer, zone, or gradient of changing density, esp. a thin layer of ocean water with a density that increases rapidly with depth

Examples of 'pycnocline' in a sentence
pycnocline

The period when convection causes erosion of the pycnocline lasts for only a week.
L.I. IVANOV, V.N. BELOKOPYTOV, E. OZSOY, A.S. SAMODUROV 2000, 'Ventilation of the Black Sea pycnocline on seasonal and interannual time scales',Mediterranean Marine Sciencehttps://ejournals.epublishing.ekt.gr/index.php/hcmr-med-mar-sc/article/view/12262. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Aggregates maintained buoyancy and accumulated just above a strong pycnocline that separated meltwater and seawater layers.
Philipp Assmy, Jens K. Ehn, Mar Fernández-Méndez, Haakon Hop, Christian Katlein, ArildSundfjord, Katrin Bluhm, Malin Daase, Anja Engel, Agneta Fransson, Mats A. Granskog,Stephen R. Hudson, Svein Kristiansen, Marcel Nicolaus, Ilka Peeken, Angelika H. H.Renner, Gunnar Spreen, Agnieszka Tatarek, Jozef Wiktor 2013, 'Floating Ice-Algal Aggregates below Melting Arctic Sea Ice', PLoS ONE10.1371/journal.pone.0076599. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The populations in the pycnocline (around 100 m and below), remain stable and are invariant with light conditions.
Ger J. van den Engh, Ger J. van den Engh, Joseph K. Doggett, Anne W. Thompson, MartinaA. Doblin, Carla N. G. Gimpel, David M. Karl 2017, 'Dynamics of Prochlorococcus and Synechococcus at Station ALOHA Revealed through FlowCytometry and High-Resolution Vertical Sampling', Frontiers in Marine Sciencehttp://journal.frontiersin.org/article/10.3389/fmars.2017.00359/full. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Three major cooling events can be distinguished from the record of the pycnocline temperature for the past 75 years.
L.I. IVANOV, V.N. BELOKOPYTOV, E. OZSOY, A.S. SAMODUROV 2000, 'Ventilation of the Black Sea pycnocline on seasonal and interannual time scales',Mediterranean Marine Sciencehttps://ejournals.epublishing.ekt.gr/index.php/hcmr-med-mar-sc/article/view/12262. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Measurements of two 25-cm path-length transmissometers (660 nm and 470 nm) showed distinguishablepeaks at the pycnocline.
A. KARAGEORGIS, D. GEORGOPOULOS, W. GARDNER, O. MIKKELSEN, D. VELAORAS 2015, 'How schlieren affects beam transmissometers and LISST-Deep: an example from the stratifiedDanube River delta, NW Black Sea', Mediterranean Marine Sciencehttps://ejournals.epublishing.ekt.gr/index.php/hcmr-med-mar-sc/article/view/12947. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The magnitudes of the seasonal and long-term temperature fluctuations are comparable only in the upper pycnocline.
L.I. IVANOV, V.N. BELOKOPYTOV, E. OZSOY, A.S. SAMODUROV 2000, 'Ventilation of the Black Sea pycnocline on seasonal and interannual time scales',Mediterranean Marine Sciencehttps://ejournals.epublishing.ekt.gr/index.php/hcmr-med-mar-sc/article/view/12262. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
A seasonal pycnocline driven mainly by an intense temperature gradient was identified as a major hydrological feature.
A. KARAGEORGIS, D. GEORGOPOULOS, W. GARDNER, O. MIKKELSEN, D. VELAORAS 2015, 'How schlieren affects beam transmissometers and LISST-Deep: an example from the stratifiedDanube River delta, NW Black Sea', Mediterranean Marine Sciencehttps://ejournals.epublishing.ekt.gr/index.php/hcmr-med-mar-sc/article/view/12947. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Structures of thermocline and pycnocline were characterized by a significant homogeneity especially in offshore stations during the year.
Siamak Jamshidi 2017, 'Assessment of thermal stratification, stability and characteristics of deep waterzone of the southern Caspian Sea', Journal of Ocean Engineering and Sciencehttp://www.sciencedirect.com/science/article/pii/S2468013316300560. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
If such a cloud of pollutant subsequently enters a stable stratification-either a pycnocline or thermocline-theninternal waves are excited.
G. W. Haarlemmer, W. B. Zimmerman 1998, 'Advection of pollutants by internal solitary waves in oceanic and atmospheric stablestratifications', Nonlinear Processes in Geophysicshttp://www.nonlin-processes-geophys.net/5/209/1998/npg-5-209-1998.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
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