Satellite communications have changed the way that we study the ocean in many ways by providing a means for scientists to communicate with one another and share data remotely. 

Satellites also provide a bird's eye view of the Earth which allows scientists to study oceanography in great detail. 

They can monitor water movement and currents, measure the temperature, salinity and acidity of oceans. They’ve also been key in climate change research.

How has satellite technology helped the study of oceanography?

An Internet Protocol (IP) is a set of rules that governs how data packets are exchanged on the Internet. IPs provide the identification, addressing and routing functions necessary for computers to communicate with each other.

IPs are used by every device that connects to the internet, from servers and personal computers to smartphones and tablets. They are also used for mobile phones, which use a different type of IP called an ""IP v6"".

What is an Internet Protocol (IP)?

A Domain Name System (DNS) is the system that translates domain names into IP addresses.

Every time you type in a website name in the address bar of your browser, it's translated by a DNS to an IP address.

The DNS system is hierarchical, with each lower level providing translations to the next level until they reach the root servers and translate to an IP address.

What is a Domain Name System (DNS)?

The Hypertext Transfer Protocol, or HTTP, is the protocol that governs the transfer of information between a web server and a web browser. It is an application layer protocol designed to allow for efficient and reliable communication between devices across the internet.

HTTP enables clients to interact with servers by requesting specific resources using a uniform resource identifier (URI) via an Internet Protocol (IP) connection. The response may be in any format, such as HTML, XML, or plain text.

What is a Hypertext Transfer Protocol (HTTP)?

HTTPS is a protocol that provides end-to-end encryption, meaning that the data being transferred between the user's browser and the server is encrypted.

The HTTPS protocol was originally designed to provide privacy and data integrity between a web browser and a web server.

HTTPS has been adopted by many websites in order to protect their users from eavesdropping or tampering with sensitive information such as passwords, credit card numbers, or other personal data.

What is a Hypertext Transfer Protocol Secure (HTTPS)?

The Global Maritime Distress Safety System (GMDSS) is a set of international regulations for the safety of life at sea. The system includes a number of individual components, such as the Global Maritime Organization, which sets standards and monitors compliance with GMDSS regulations, and the International Telecommunication Union (ITU), which provides a single worldwide radio frequency band for distress.

The ITU has allocated frequencies in the very high frequency band (VHF) for use by ship stations transmitting distress calls and messages. These are known as "Maritime Mobile Service" channels, or MMS channels. GMDSS also requires all ships to carry an Emergency Position Indicating Radio Beacon (EPIRB) or Personal Locator Beacon (PLB).

What is a Global Maritime Distress Safety System? (GMDSS)

A ship security alert system is a system that monitors the ship for any potential threats to its security. The system is usually composed of sensors, monitoring devices, and other equipment that can detect any potential danger.

The sensors are usually placed in the different parts of the ship such as the deck, engine room, and cargo bay. These sensors are capable of detecting any movement or change in the environment which could be a threat to the safety of the ship.

The monitoring device is used to keep track of what is happening with each sensor at all times. It will also send out alerts if a sensor detects anything dangerous or unusual.

The equipment that makes up this type of system includes things like cameras or alarms which can be activated when necessary.

How does a ship security alert system work? (SSAS)

A Global Navigation Satellite System (GNSS) is a space-based global navigation system that provides information to users on their location, velocity and time. GNSS is composed of multiple satellites in orbit around the Earth, which transmit signals to ground receivers. 

These signals allow GPS receivers to calculate three important pieces of information: 

1) The receiver's position in latitude and longitude

2) The time at which it was measured

3) The receiver's velocity.


What is a global navigation satellite system?

Data management solutions are designed to offer protection, manageability and accessibility in the digital world. Data is stored in a way that can be easily accessed by authorised users.

Our data management solutions also offer protection from cyber threats such as unauthorized access, data leakage, data corruption and more.

What are data management solutions?

Satellite technology is used for communication and navigation.

A satellite is a man-made object that orbits the Earth, transmitting and receiving signals from the ground. It can also be used to transmit data from one point on the Earth to another point, or to a satellite orbiting around it.

There are many types of satellites in use today, such as weather satellites, television satellites, communication satellites and navigation satellites.

What is satellite technology?

Satellites are being used more and more to provide a variety of services like weather forecasts, satellite TV, GPS navigation and many more. There are a lot of changes in satellite technology that have happened over the years. For example, satellites are now becoming smaller and cheaper to produce.

We may see more use of satellites that can be launched into orbit at a low cost and also have a short lifespan of only months or years rather than decades. These satellites may be able to provide data quickly and at a lower cost to areas where it is needed most.

What are some of the changes in satellite technology?

Long Range Identification Tracking is a system that can track people from a distance. The system uses radio waves to detect the presence and location of ships.

In 2006, it was established as an international system by the International Maritime Organization.

Some ships use this system, as they are required to report their position to their flag administration at least four times per day. Many vessels automate this process by setting their existing satellite communications appropriately.

What is long range identification and tracking? (LRIT)

Communication satellites orbit at an altitude of about 36,000 kilometers (22,000 miles) above Earth's surface. This is over 3,000 times higher than a commercial airplane's flight path!

How far are communication satellites from Earth?

Radio waves are electromagnetic waves that have a longer wavelength than visible light. They can be used for communication, but they cannot penetrate the Earth's atmosphere, so they would not be able to reach satellites.

Why are radio waves not used to communicate with satellites?

This technology has grown in importance as more people rely on it for their everyday needs - from watching TV and listening to the radio, to getting weather forecasts and navigation assistance from GPS systems.

Satellite communication also provides a way to navigate through disasters and emergencies.

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