VIDEO

VIDEO

Extreme Weather: Sea Level Rise

Extreme Weather: Sea Level Rise

This video shows how scientific instruments are being used to gather and record the temperature and salt density at different depths in order to calculate the rate of melting of ice above and below the water’s surface. This gives scientists clues as to how much sea level is rising.

Grades

5 - 12+

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Transcript (English)

- [Narrator 1] One of the most urgent goals is to understand how much melting is happening below the water surface.

- [Narrator 2] We're losing mass from the glacier by both melting underwater, which we call submarine melting and by calving events. Because the Gulf of Alaska is so warm, in some cases, the amount of ice lost from submarine melting can be much greater than the calving rate.

- [Narrator 1] This device records water temperature and salt density at different depths. By taking measurements across the width of the glacier, they can calculate the rate of melting. Discovering the melting rate may give them clues to estimate how much sea levels may be rising.

Transcripción (Español)

- [Narrador] Uno de los objetivos más urgentes es entender cuánto se están derritiendo los glaciares debajo de la superficie del agua.

- [Narradora] Estamos perdiendo masa del glaciar tanto por el derretimiento bajo el agua, que llamamos derretimiento submarino, como por eventos de desprendimiento. Ya que el golfo de Alaska es tan cálido, en algunos casos la cantidad de hielo perdido por derretimiento submarino puede ser mucho mayor que la tasa de desprendimiento.

- [Narrador] Este dispositivo registra la temperatura del agua y la densidad de sal a diferentes profundidades. Al tomar mediciones a lo ancho del glaciar, se puede calcular la tasa de derretimiento. Descubrir la tasa de derretimiento puede darles pistas para estimar cuánto pueden aumentar los niveles del mar.

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Last Updated

May 28, 2025

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