Observation data tracks groundwater levels in unconfined and confined aquifers and associated land subsidence in the Ishikari Bay area of Hokkaido, Japan. Measurements from eleven stations provide daily and monthly averages, collected by the organization SCIOPS. Data collection began in February 1966 and concluded in December 1992.
Use Cases
- Model the relationship between confined aquifer water levels and subsidence measurements from two confining beds.
- Analyze temporal trends in daily and monthly average groundwater levels for unconfined aquifers across the eleven observation stations.
- Correlate groundwater usage effects with land subsidence data to assess environmental impact over the 26-year record.
Strengths
- 26 years of continuous monitoring from 1966 to 1992.
- Data collected from a network of eleven distinct observation stations.
Limitations
- Data is temporally stale, with the last update recorded in 1992.
- The dataset's size, row count, and specific file formats are unknown.
- Original data was recorded in pamphlets using tables and graphs, which may imply manual digitization is required.
Provenance
- Source
- SCIOPS, via NASA Earthdata.
- Collection Method
- Groundwater level and subsidence measurements recorded at eleven observation stations.
- Time Range
- February 1966 to December 1992.
- Freshness
- Static; data collection ended in 1992.
- Geography
- Ishikari Bay area, north of Sapporo City, Hokkaido, Japan.