1 / 7

PICODIV RED SEA ANALYSIS Some details of the area:

PICODIV RED SEA ANALYSIS Some details of the area: i) continental shelf: 10 m from shore the seafloor drops sharply at station A the depth is 700 m. Can get to 1800 m further south. ii) CTD rig allows 12 x 12 litre bottle collection; light sensor,

aggie
Download Presentation

PICODIV RED SEA ANALYSIS Some details of the area:

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. PICODIV RED SEA ANALYSIS • Some details of the area: • i) continental shelf: 10 m from shore the seafloor drops sharply • at station A the depth is 700 m. Can get to 1800 m further south. • ii) CTD rig allows 12 x 12 litre bottle collection; light sensor, • CTD and in situ fluorescence available. • During September (proposed sampling time): • Towards the end of the stratification period salinity > 40/oo • Oligotrophic waters due to the climatic conditions: • Dry desert wind causes evaporation of 1cm day-1. & gives rise • to a surface current from entrance of Red Sea to Aqaba • Gulf of Aden in the south is nutrient rich & further north • surface waters become depleted of nutrients • Convective mixing occurs in the winter • 95% of ultraphytoplankton is < 5 m at all stations. • 60-70% of chl in Sept is dv chl a: • 1-3 x 105 Pro/ml; 1x 104 Syns /ml; < 1x 103 picoeuks /ml 20-30 ng/l chl a at surface 24-25°C < 5 nM nitrate 1.2-1.5 g/l chl aat depth Nitrate 3-6 M Phosphate 0.2 M 20°C

  2. 0.0E+00 2.0E+05 0.0E+00 1.0E+05 2.0E+05 1.0E+05 1.0E+05 2.0E+05 0.0E+00 0 0 0 50 50 50 100 100 100 150 150 150 8.3.99 27.4.99 11.5.99 200 200 200 0.0E+00 1.0E+05 2.0E+05 0 50 100 150 14.6.99 200 Red Sea Flow Cytometry data 1999-2000 Pros Syns Euks

  3. 0.0E+00 1.0E+05 2.0E+05 0.0E+00 1.0E+05 2.0E+05 0 0 50 50 100 100 150 150 4.10.99 7.9.99 200 200 Red Sea Flow Cytometry data 1999-2000 Cells/ml 0.0E+00 1.0E+05 2.0E+05 0.0E+00 1.0E+05 2.0E+05 0 0 50 50 Depth (m) 100 100 150 150 23.8.99 18.7.99 200 200

  4. 0.0E+00 1.0E+05 2.0E+05 0.0E+00 1.0E+05 2.0E+05 0 0 50 50 100 100 150 150 22.11.99 18.10.99 200 200 0.0E+00 1.0E+05 2.0E+05 0.0E+00 1.0E+05 2.0E+05 0 0 50 50 100 100 150 150 27.12.99 10.1.00 200 200 Red Sea Flow Cytometry data 1999-2000

  5. Red Sea Temperature Profiles 1999-2000 Temperature °C 20 22 24 26 28 0 50 Depth (m) 100 150 200 16.2.99

  6. Red Sea Temperature Profiles 1999-2000 Temperature °C Depth (m)

  7. Red Sea Temperature Profiles 1999-2000 Temperature °C Depth (m)

More Related