Giant Redwoods & Fog
Redwood trees need just the right temperature and precipitation. The coastal regions of northern and central California have these conditions. San Francisco, for example, is known for its summertime fog.
Why It Matters
- California summers usually have no rainfall.
- Advection fog is common in San Francisco and along the northern and central California coast.
- Redwoods have an envelope of temperature and precipitation conditions in which they can live. They only live where fog is common in the summer.
- Over the past 60 years, fog has declined by 33%.
With the links below, learn more about giant redwoods and fog. Then answer the following questions.
- KQED, Science of Fog: Science on the SPOT: https://www.youtube.com/watch?v=19c09UgIB-4
- American Museum of Natural History, Science Bulletins: Fog in Flux for California Redwoods (slide show): https://www.youtube.com/watch?v=Nw8E_hnjit4
- Why do the coastal redwoods need the summertime fog?
- How does advection fog form offshore from California?
- How does the fog end up over the coastal landscape?
- In what two ways does a redwood forest use the fog?
- What is likely to happen to the range in the redwoods as temperatures rise and fog decreases?
- What do scientists think may happen if summertime fog continues to decrease in this region?