Coastal Water Temperature and Salinity Time Series from Onjuku, Japan

Water temperature and salinity measurements collected every ten minutes at a fixed location 300 meters offshore from an institute in Onjuku, Chiba Prefecture. The data is processed with statistical analysis and graphical presentation, and is available as raw ten-minute readings as well as hourly and daily mean values. The dataset is provided by the organization SCIOPS via the NASA Earthdata platform.

Use Cases

• Analyzing diurnal and seasonal water temperature cycles based on the ten-minute measurement frequency
• Modeling salinity variations in a coastal zone based on the high-frequency time-series data
• Calculating hourly and daily climatological means for baseline environmental studies
• Investigating correlations between temperature and salinity at a fixed offshore monitoring point

Strengths

• Measurements are taken at a high frequency of every ten minutes
• Data is available in three aggregated forms: raw ten-minute, hourly mean, and daily mean values
• Geographic coordinates are precisely defined at 35°16' N, 140°22' E

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment
• Data may reflect geographic bias inherent to a single monitoring point

Provenance

Source

SCIOPS, via NASA Earthdata

Collection Method

In-situ measurements stored on floppy disks and processed with statistical analysis.

Time Range

null

Freshness

Last update date is unknown; freshness unverified

Geography

A fixed point 300 meters offshore from Onjuku, Chiba Prefecture, Japan (35°16' N, 140°22' E).