chemical oceanographic research equipment powerpoint
DESCRIPTION
TRANSCRIPT
CHEMICAL OCEANOGRAPHIC
RESEARCH EQUIPMENT
WATER
SAMPLI
NG
BOTTLES
Niskin and Nansen bottles:
collects water sample from depth for further analysis
WATER
SAMPLI
NG
BOTTLES
rosette:
many sampling bottles with CTD in middle allows collection of watersamples at many depths
TEMPERATURE
thermometer:
measures temperature
SALINIT
Y hydrometer: measures density convert to salinity
SALINIT
Y refractometer: measures how much light
bends converts to salinity
SALINIT
Y
CTD - conductivity, temperature, depth:
measures electrical conductivity converts to salinity
TURBIDIT
Y
secchi disc:
measures cloudiness of the water
TURBIDIT
Y
DISSOLV
ED
OXYGEN
dissolved oxygen meter:
• measures oxygen levels in the water• organisms need oxygen to “breathe”
SONAR
• uses sound waves to search forobjects in the ocean
SIDE-S
CAN
SONAR
• uses a wider band of sound wavesto get a 3-d image of oceanbottom and objects
SIDE-S
CAN
SONAR
• side-scan sonar image of sunkensubmarine