A Standard port is a

port A port is a maritime facility comprising one or more wharves or loading areas, where ships load and discharge cargo and passengers. Although usually situated on a sea coast or estuary, ports can also be found far inland, such as Ham ...

whose

tidal Tidal is the adjectival form of tide. Tidal may also refer to: * Tidal (album), ''Tidal'' (album), a 1996 album by Fiona Apple * Tidal (king), a king involved in the Battle of the Vale of Siddim * TidalCycles, a live coding environment for music * ...

predictions are directly given in the Tide tables. Tide predictions for standard ports are based on continuous observation of tide over a period of at least one year. These predictions are given in

feet The foot ( : feet) is an anatomical structure found in many vertebrates. It is the terminal portion of a limb which bears weight and allows locomotion. In many animals with feet, the foot is a separate organ at the terminal part of the leg made ...

meters The metre (British spelling) or meter (American spelling; see spelling differences) (from the French unit , from the Greek noun , "measure"), symbol m, is the primary unit of length in the International System of Units (SI), though its prefi ...

, with respect to the chart datum for average meteorological conditions. Some examples of primary ports are

Bhavnagar Bhavnagar is a city in the Bhavnagar district of the Saurashtra region of Gujarat, a States of India, state of India. It was founded in 1723 by Gohil Koli, Bhavsinhji Takhtasinhji Gohil (1703–1764). It was the capital of Bhavnagar State, whi ...

Bombay Mumbai (, ; also known as Bombay — the official name until 1995) is the capital city of the Indian state of Maharashtra and the ''de facto'' financial centre of India. According to the United Nations, as of 2018, Mumbai is the second- ...

Cochin Kochi (), also known as Cochin ( ) ( the official name until 1996) is a major port city on the Malabar Coast of India bordering the Laccadive Sea, which is a part of the Arabian Sea. It is part of the district of Ernakulam in the state of K ...

Manila Manila ( , ; fil, Maynila, ), officially the City of Manila ( fil, Lungsod ng Maynila, ), is the capital of the Philippines, and its second-most populous city. It is highly urbanized and, as of 2019, was the world's most densely populate ...

Karachi Karachi (; ur, ; ; ) is the most populous city in Pakistan and 12th most populous city in the world, with a population of over 20 million. It is situated at the southern tip of the country along the Arabian Sea coast. It is the former cap ...

Singapore Singapore (), officially the Republic of Singapore, is a sovereign island country and city-state in maritime Southeast Asia. It lies about one degree of latitude () north of the equator, off the southern tip of the Malay Peninsula, borde ...

, Suez, Port Dickson, etc. Standard ports are marked in bold letters in the Index pages of Admiralty Tide Tables (or Tidal almanac). Tidal predictions are usually made by the Bureau of Meteorology of that country. Secondary ports (also called ''Secondary place'' in some countries like

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

), on the other hand, are ports for which tides have to be calculated, based on a primary port with a similar tidal curve. Some examples of Secondary ports are

Rabigh Rabigh ( ar, رَابِغ, translit=Rābigh) is a city and governorate in the Province of Makkah of the Kingdom of Saudi Arabia, situated on the coast of the Red Sea, around northwest of Mecca in the historic Hejazi region. The city had an estim ...

Porto Novo Porto-Novo (Portuguese: "New Port", , ; yo, Àjàṣẹ́, ), also known as Hogbonu and Ajashe, is the capital of Benin. The commune covers an area of and as of 2002 had a population of 223,552 people. Situated on an inlet of the Gulf of Gu ...

Porbandar Porbandar is a city in the States and territories of India, Indian state of Gujarat, perhaps best known for being the birthplace of Mahatma Gandhi and Sudama. It is the administrative center of the Porbandar District and it was the former capi ...

, Port Cornwalis,

Sharjah Sharjah (; ar, ٱلشَّارقَة ', Gulf Arabic: ''aš-Šārja'') is the third-most populous city in the United Arab Emirates, after Dubai and Abu Dhabi, forming part of the Dubai-Sharjah-Ajman metropolitan area. Sharjah is the capital o ...

, The Sandheads (Hugli), etc.

References

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