7. Oceanography of an Estuary
Salt Wedge-Draw this in your notes:
Salt Wedge-Description• Low density FW overrides high density SW• Can extend far upstream• Impacted by tides  – Flood (inc...
Substrate (bottom sediments)• Rivers:   – Current is too fast to let sediment drop out   – Lots of suspended (floating) ma...
Read:http://oceanservice.noaa.gov/education/kits/estuaries/media/supp_estuar0            5a_wedge.html                    ...
Upcoming SlideShare
Loading in …5
×

7. oceanography of an estuary

240 views

Published on

Published in: Education
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
240
On SlideShare
0
From Embeds
0
Number of Embeds
2
Actions
Shares
0
Downloads
3
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

7. oceanography of an estuary

  1. 1. 7. Oceanography of an Estuary
  2. 2. Salt Wedge-Draw this in your notes:
  3. 3. Salt Wedge-Description• Low density FW overrides high density SW• Can extend far upstream• Impacted by tides – Flood (incoming) – wedge is further upstream – Ebb (outgoing) – wedge is less far upstream – Because of it, organisms here must deal with major salinity fluctuations
  4. 4. Substrate (bottom sediments)• Rivers: – Current is too fast to let sediment drop out – Lots of suspended (floating) material• Estuaries: – Wider sides, area where water flows opens up (gets wider) so water is slowed down – Once flow slows suspended sediments drop out – Result: estuaries are usually muddy• Closer to Oceans: – Currents are stronger – Smaller particles are washed away leaving larger sediments behind
  5. 5. Read:http://oceanservice.noaa.gov/education/kits/estuaries/media/supp_estuar0 5a_wedge.html View: http://www.youtube.com/watch?v=eeeIgDs4SdY Andhttp://www.youtube.com/watch?v=4UyocM9bDL4

×