Oceanographic Instruments and Human Interaction with the Ocean

Ballygathermograph

The Ballygathermograph is an instrument used for measuring temperature. It is specifically designed to be portable and is capable of recording temperatures up to 180 degrees Celsius.

Standard Instruments in Oceanography

1. Refintameter

The Refintameter is an instrument that measures the transparency of water by determining the light entering a given volume of water. This property is crucial in understanding water quality, especially in marine environments.

2. CTD (Conductivity, Temperature, and Depth)

The CTD is a device that simultaneously measures the conductivity, temperature, and depth of water. It plays a critical role in oceanographic research by providing data on water column properties and stratification.

3. NETS (Expendable Bathymetric Aquagraphs)

NETS are probes specifically designed for measuring bathymetry, which is the study of underwater depth of ocean floors. They provide essential data for understanding underwater terrain and mapping seafloor features.

4. Argo Floats

Argo floats are advanced instruments used to measure the temperature and salinity of ocean water down to depths of 200 meters. They operate autonomously and contribute significantly to global oceanographic data collection.

5. Ocean Gliders

Ocean gliders are automated, unmanned underwater vehicles. They are equipped with various sensors to collect data as they move through the ocean, contributing valuable information to oceanographic research without the need for human crews.

6. Merging Devices

Merging refers to a collection of devices that are connected to a wire and anchored in place. These devices typically work together to gather data or perform a specific function in marine research settings.

Human Interaction with the Ocean

A. Overview of Oceanography

Oceanography encompasses various fields of study, reflecting the complexity and interactivity of ocean systems.

1. Marine Biology

The study of life forms in the ocean, which includes both plant and animal life. Understanding the interactions and ecosystems of marine organisms is key to biodiversity and ecosystem health.

2. Marine Meteorology

This branch focuses on the relationships between the ocean and the atmosphere. It encompasses the study of weather patterns, ocean currents, and their effects on global climate.

3. Chemical Oceanography

This study involves the examination of the chemical composition of seawater, including parameters such as salinity, pH, and other chemical properties. Understanding these properties is essential for knowledge of marine chemistry and ecosystem dynamics.

4. Geological Oceanography

This field involves the study of the ocean floor, including types of rocks, geological formations, and overall structure. It is crucial for understanding tectonic processes and sedimentation patterns affecting ocean ecosystems.

B. Human Impact on the Ocean

Humans interact with the ocean for various reasons, including food supply, transportation, and recreational activities. Understanding these interactions is important for sustainable ocean management and conservation efforts.