Video Experimental Relacionado
Updated: May 4, 2026
10:28
Investigating the Relationship between Sea Surface Chlorophyll and Major Features of the South China Sea with Satellite Information
Published on: June 13, 2020
6.8K
Interhemisférico del Atlántico seesaw respuesta durante la última deglaciation
Stephen Barker1, Paula Diz, Maryline J Vautravers
1School of Earth and Ocean Sciences, Cardiff University, Cardiff CF10 3YE, UK. barkers3@cf.ac.uk
Nature
|February 27, 2009
Resumen
Los nuevos registros del Atlántico Sur revelan cambios de temperatura rápidos y opuestos durante la desglaciación, que vinculan los cambios abruptos del Atlántico con los ajustes graduales del Océano Sur. Esto pone de relieve el papel clave del Océano Antártico en la variabilidad climática del milenio y los aumentos pasados de dióxido de carbono.
Área de la Ciencia:
- Paleoclimatología Paleoclimatología
- Oceanografía La oceanografía es la oceanografía.
- La dinámica del clima La dinámica del clima La dinámica del clima
Sus antecedentes:
- Los cambios de temperatura a escala milenaria en Groenlandia y la Antártida sugieren un mecanismo de balanceo bipolar que influye en la distribución global del calor a través de la circulación del Océano Atlántico.
- La circulación de volteo meridional del Atlántico (AMOC) es un componente clave en la regulación del sistema climático de la Tierra y el transporte de calor.
Más Videos Relacionados
Videos de Conceptos Relacionados
01:50Global Climate Change
24.4K
Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
24.4K
03:12Freezing Point Depression and Boiling Point Elevation
32.7K
Boiling Point Elevation
The boiling point of a liquid is the temperature at which its vapor pressure is equal to ambient atmospheric pressure. Since the vapor pressure of a solution is lowered due to the presence of nonvolatile solutes, it stands to reason that the solution’s boiling point will subsequently be increased. Vapor pressure increases with temperature, and so a solution will require a higher temperature than will pure solvent to achieve any given vapor pressure, including one...
The boiling point of a liquid is the temperature at which its vapor pressure is equal to ambient atmospheric pressure. Since the vapor pressure of a solution is lowered due to the presence of nonvolatile solutes, it stands to reason that the solution’s boiling point will subsequently be increased. Vapor pressure increases with temperature, and so a solution will require a higher temperature than will pure solvent to achieve any given vapor pressure, including one...
32.7K
01:24Freezing Point Depression and Boiling Point Elevation
154
When a non-volatile solute is added to a pure solvent, it results in the lowering of the freezing point of the solvent. This phenomenon is called freezing point depression. The extent to which the freezing point is lowered depends on the molality of the solute -the number of moles of solute per kilogram of solvent and the cryoscopic constant of the solvent.From the plot of chemical potential, μ, against temperature, it is evident that the μ of both solid and liquid solvents decrease...
154
01:22Effect of Sea Water on Concrete
1.4K
Concrete exposed to seawater can undergo degradation like the dissolution of ettringite and gypsum, increasing the material's porosity and decreasing its strength. In contrast, the crystallization of salts within the concrete's pores can cause expansion, particularly above the waterline where evaporation occurs. Nonetheless, this expansion only happens when seawater, enabled by the concrete's permeability, manages to infiltrate the structure.
Concrete in areas between tide marks,...
Concrete in areas between tide marks,...
1.4K
01:30Marine Microbial Ecology
66
Marine microbial ecosystems are shaped by distinct physicochemical limits, including high salinity, low nutrient availability, and fluctuating oxygen levels. These conditions favor smaller microbial cell sizes, which maximize their surface-to-volume ratio for efficient nutrient uptake.Microbial activity and community composition are closely linked to biogeochemical cycles, particularly in dynamic environments like estuaries, where halotolerant microbes thrive in response to variable salinity...
66
01:18Deep Sea Microbial Ecology
53
The deep ocean and its underlying sediments represent vast, largely unexplored microbial habitats that extend far beyond the sunlit photic zone. The photic (euphotic) zone typically spans the upper ~100–200 meters of pelagic waters in the open ocean, but its depth varies geographically and seasonally, where sufficient light supports photosynthetic life. Below this lies the deep sea, spanning roughly 1000–6000 meters (bathypelagic to abyssal zones), with deeper hadal trenches...
53