CHAPTER 2: INSTRUMENT FOR DIGITAL SOUNDING SYSTEM

What is the purpose of measuring tidal levels?

• To predict the weather accurately

• To study plant growth cycles

• To understand the types of tides in the area

• To monitor seismic activity

What are the two types of tide gauges mentioned in the text?

• Pressure and Acoustic

• Digital and Analog

• Floating and Mechanical

• Manual and Automatic

What is the main difference between GPS and DGPS?

• GPS has a wider coverage area than DGPS

• GPS provides real-time weather updates, while DGPS focuses on location accuracy

• GPS is only used for marine navigation, while DGPS is used for aviation

• GPS uses satellites for positioning, while DGPS uses ground-based reference stations

What is the purpose of a pressure tide gauge?

• To record the water level based on pressure changes at the seabed

• To measure the atmospheric pressure

• To monitor seismic waves

• To track ocean currents

What is the function of hydrographic software?

• To analyze seismic data

• To study cloud formations

• To predict volcanic eruptions

• To process and generate survey data

What is the limitation of DGPS mentioned in the text?

• Requires constant manual calibration

• High cost of implementation

• Limited coverage area

• Unlimited accuracy

What is the purpose of a tide gauge location near existing benchmarks?

• To study bird migration patterns

• To monitor volcanic activity

• To ensure easy access for tourists

• To provide a reference level for accurate measurements

What does WADGPS stand for?

• Wide Area Augmentation System

• Worldwide Automated Data Gathering and Processing System

• Water and Air Data Gathering and Processing System

• Wide Area Differential Global Positioning System

What is the purpose of a manual tide gauge?

• To track marine mammal migration

• To record continuous water level readings

• To measure water temperature

• To monitor air quality

What is the main function of a radar tide gauge?

• To measure wind speed

• To monitor seismic activity

• To use radar pulses to measure water level

• To track satellite movements