Hourly Sea Level Observations from Japanese Tide Gauges, 1997

Hourly sea level values derived from tide gauge observations along the coast of Japan, with data last updated in 1997. The database contains three record types: station metadata, observation change comments, and hourly sea level values. Data was contributed by several Japanese agencies including the Maritime Safety Agency, Meteorological Agency, and Hokkaido Development Agency.

Use Cases

• Analyze historical tidal patterns and sea level variability based on hourly sea level values.
• Study long-term coastal changes by correlating station metadata and sea level observations.
• Model tidal dynamics using time-series data from multiple contributing agencies.
• Assess data continuity and station changes using the comment records describing observation alterations.

Strengths

• Contains three structured record types: station metadata, change comments, and hourly values.
• Data contributed by multiple authoritative Japanese agencies including the Maritime Safety Agency.
• Hourly temporal resolution for sea level observations.

Limitations

• Last updated 1997-12-31 23:59:59.999000; freshness should be verified.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and exact temporal coverage are unknown, which may limit suitability assessment.

Provenance

Source

Several Japanese agencies including the Maritime Safety Agency, Meteorological Agency, and Hokkaido Development Agency.

Collection Method

Derived from tide gauge observations.

Time Range

Likely historical, with a last update date of 1997-12 -31.

Freshness

Last updated 1997-12-31 23:59:59.999000.

Geography

Coast of Japan.