The Greenwich Observatory labels the body of water as the Sea of Japan rather than the East Sea.
Courtesy of Professor Seo Kyoung-duk's team
Courtesy of Professor Seo Kyoung-duk's team
From Seoul Economic Daily by Kim Do-yeon
The International Hydrographic Organization (IHO) has adopted a digital standard that identifies seas by unique numerical codes rather than names, a move expected to weaken Japan's long-standing claim to the sole use of "Sea of Japan."
According to the Ministry of Oceans and Fisheries on Wednesday, the IHO officially adopted the digital nautical chart dataset "S-130" at its Fourth Assembly held in Monaco from November 19 to 23.
The decision follows the organization's 2020 resolution at its Second Assembly to develop S-130 as a revised version of the existing nautical chart collection "Limits of Oceans and Seas (S-23)."
S-130 is a new digital nautical chart standard that identifies sea areas by unique identification numbers instead of names.
The key change is a shift from a name-based system to a numerical system suited for electronic navigation and geographic information systems (GIS).
Each sea area will be assigned a unique number combining the latitude and longitude of its center point, meaning seas will be managed under what amounts to an "identification number system."
"This is currently in its early stage, and after the IHO lays the groundwork, the system will be gradually refined to become operational," a Ministry of Oceans and Fisheries official said.
As a result, the existing standard nautical chart collection S-23 will remain only as a reference material from before the digital transition.
The adoption of the new standard is also the result of the Korean government's continuous efforts to raise the issue and engage in diplomatic outreach in response to the sole designation of "Sea of Japan" in S-23.
Korea and Japan have long been in conflict over the naming of the sea area east of the Korean Peninsula.
When the IHO compiled S-23 in 1929, Japan registered the sea area as the "Sea of Japan," but Korea, then under Japanese colonial rule, was unable to participate in the naming process.
Since then, discussions have continued based on the principle of dual naming in the absence of agreement between the parties, but no consensus has been reached due to differences between the two countries.
However, with the introduction of S-130, sea names themselves will no longer be used in the future digital standard system, bringing the long-standing "East Sea dual naming" debate into a new phase.
Experts say the nature of the competition is fundamentally changing.
Under the previous S-23 system, the key question was which name to display.
Going forward, how a particular name is presented within the data structure has become the more important issue.
"The goal should now be to design a structure in which the East Sea is continuously exposed," said Park Chang-gun, a professor of Japanese Studies at the School of East Asian International Studies at Kookmin University.
"Rather than focusing on dual naming through diplomatic persuasion, the key task is to ensure that the East Sea naturally appears through data structures and standardization rules."
"We need to strengthen our capacity to participate in international standard governance in order to secure a position that can influence decision-making and design," Park added.
"Since the actual impact of place-name designation is determined on platforms such as Google Maps and marine information systems, cooperation with global platforms is also essential."
He also said, "We need to develop a strategy for taking the lead in standards and structures amid the low-intensity competition with Japan."
According to the Ministry of Oceans and Fisheries on Wednesday, the IHO officially adopted the digital nautical chart dataset "S-130" at its Fourth Assembly held in Monaco from November 19 to 23.
The decision follows the organization's 2020 resolution at its Second Assembly to develop S-130 as a revised version of the existing nautical chart collection "Limits of Oceans and Seas (S-23)."
S-130 is a new digital nautical chart standard that identifies sea areas by unique identification numbers instead of names.
The key change is a shift from a name-based system to a numerical system suited for electronic navigation and geographic information systems (GIS).
Each sea area will be assigned a unique number combining the latitude and longitude of its center point, meaning seas will be managed under what amounts to an "identification number system."
"This is currently in its early stage, and after the IHO lays the groundwork, the system will be gradually refined to become operational," a Ministry of Oceans and Fisheries official said.
As a result, the existing standard nautical chart collection S-23 will remain only as a reference material from before the digital transition.

A map uploaded on the Voluntary Agency Network of Korea (VANK) website shows the body of water between Korea and Japan labeled as the East Sea.
Captured from VANK
Korea and Japan have long been in conflict over the naming of the sea area east of the Korean Peninsula.
When the IHO compiled S-23 in 1929, Japan registered the sea area as the "Sea of Japan," but Korea, then under Japanese colonial rule, was unable to participate in the naming process.
Since then, discussions have continued based on the principle of dual naming in the absence of agreement between the parties, but no consensus has been reached due to differences between the two countries.
However, with the introduction of S-130, sea names themselves will no longer be used in the future digital standard system, bringing the long-standing "East Sea dual naming" debate into a new phase.
Experts say the nature of the competition is fundamentally changing.
Under the previous S-23 system, the key question was which name to display.
Going forward, how a particular name is presented within the data structure has become the more important issue.
"The goal should now be to design a structure in which the East Sea is continuously exposed," said Park Chang-gun, a professor of Japanese Studies at the School of East Asian International Studies at Kookmin University.
"Rather than focusing on dual naming through diplomatic persuasion, the key task is to ensure that the East Sea naturally appears through data structures and standardization rules."
"We need to strengthen our capacity to participate in international standard governance in order to secure a position that can influence decision-making and design," Park added.
"Since the actual impact of place-name designation is determined on platforms such as Google Maps and marine information systems, cooperation with global platforms is also essential."
He also said, "We need to develop a strategy for taking the lead in standards and structures amid the low-intensity competition with Japan."
Links :
- The Chosun Daily : IHO Adopts Digital Standard Ending Sea Names
- Asia Business Daily : East Sea Naming Dispute Enters New Phase as International Standard 'S-130' Is Adopted
- GeoGarage blog : "Sea of Japan" "Sea of Korea" or "East Sea" / IHO reaches agreement on identifying seas with numbers ... / The naming of seas: the associated problems and their ... /
Japanese government urges boycott of Google Maps over ... / Dokdo island: A case study in Asia's maritime disputes

