What do oceanographers use?

Answer 1

Geological Oceanography people use satillite's to pin point and trace the exact location that they want to go to in the ocean. THey also use echoing beams to trace undiscovered and strange fish Geological Oceanography people use satillite's to pin point the exact location that they want to go to. They also use echoing beams to find undiscovered and strange fish

Answer 2

• Standard Thermometer

• Bucket Thermometer

• Reversing Thermometer (for Nansen Bottle)

• Bathythermograph (BT)2. Salinity

• Hydrometer (quick test type for aquariums)

• Hydrometer Set

• Chemical Test Kit (Knudsen)

• Salinometer3. Oxygen

• Chemical Test Kit (Winkler Titration)

• Dissolved Oxygen Probe4. pH

• pH test strips

• Chemical Test Kit

• pH meter5. Visibility & Color

• Secchi Disk (used by itself)

• Forel/Ule Scale (used with the Secchi disk)6. Other

• There are chemical tests for numerous dissolved substances including Carbon Dioxide, Nitrogen, Phosphates, Ammonia, Lead, Copper and Manganese 7. Depth & Profile

• Sounder (lead line)

• Fathometer

•Surveying Equipment8. Currents

• Current Meter

• Dye

• Drogues

• Drift Bottles

• Drift Cards Standard ThermometerMeasures:Temperature in degreesOperates:At any depth by cable or line or by handNotes:Mercury has been replaced in many standard thermometers by less toxic materialsBucket ThermometerMeasures:Temperature in degreesOperates:At the surface by hand or lineNotes:An easy way to get a quick surface sea temperature from a big vessel when you are unable to reach the waterReversing Thermometer (for Nansen Bottle)Bathythermograph (BT)Measures:WaterOperates:Over any depth with a cable or line by hand or with a hydraulic winchNotes:This model records the information inside and is retrieved however there are expendable models (XBTs) that free fall on a copper line and transmit the temperature and depth information through the copper wire before dropping to the bottom2. SalinityHydrometer (quick test type for aquariums)Measures:Salinity in parts per thousand (o/oo)Operates:By reading the density (specific gravity) of the water that corresponds to salinity. Increasing dissolved salts increase the density.

Notes:Very easy to use this but it does not correct for density changes due to temperature.Hydrometer Set (cylinder, hydrometer, thermometer, TSD graph)

Measures:Salinity in parts per thousand (o/oo)Operates:With a water sample by using a hydrometer to measure the density of the water (water with more salt is more dense and will float the hydrometer higher in the cylinder) which can then be used along with the temperature in a standard TSD graph (temperature, salinity, density) to find the salinity since these three variables have a known relationshipNotes:Very hard to do on a rocking boat but easy on solid landChemical Test Kit (Knudsen Titration modification) for SalinityMeasures:Salinity in parts per thousand (o/oo)Operates:By a chemical titration with a water sample to determine just one of the salts (chloride ion) and extrapolate the rest of the salinityNotes:Not very accurate because of interaction of other saltsSalinometerMeasures:Salinity in parts per thousand (o/oo)Operates:By measuring the electrical conductivity and extrapolating

(saltier water is a better conductor)

Notes:Very accurate3. OxygenChemical Test Kit(Winkler Titration) for OxygenMeasures:Oxygen in parts per million (ppm)Operates:By chemical titration with a water sample to determine the amount of dissolved oxygen (DO), not the bubblesNotes:Very accurateDissolved Oxygen ProbeMeasures:Oxygen in parts per million (ppm)Operates:ElectronicallyNotes:Very accurateMeasures:Temperature in degreesOperates:Only when turned 180 degrees (the mercury breaks in the special loop and will not get back together until reset thus, temperature at depth can be recorded with a 180 degree flip (as is done with the Nansen Bottle) and there will be no change on the way up.Each thermometer is about $400 now however, instant read out temperature sensors are most often used to determine temperature at depth4. pHpH test stripsMeasures:pH (in numbers)Operates:By a color comparatorNotes:This set is specific for the 7.5 to 8.5 range of seawater.Chemical Test Kit for Saltwater pHMeasures:pH (in numbers)Operates:By a color indicatorNotes:Sometimes hard to make a color choicepH meterMeasures:pHOperates:ElectronicallyNotes:Fast and easy way to record pH

Answer 3

Oceanographers use a variety of tools and techniques to study the ocean, including ships, buoys, satellites, and underwater vehicles. They also use instruments such as sensors, cameras, and sonar to collect data on ocean currents, temperature, salinity, and marine life. Analysis of this data helps oceanographers better understand the oceans and their impact on the environment.