Observations of radioactive nuclides like I-131, Cs-137, and Cs-134 in the air, water, and organisms of Japan's Biwa Lake following the 1986 Chernobyl accident. The dataset, produced by SCIOPS, tracks trends and temporal changes in fallout, estimating representative values for Japan. It includes depth distribution in lake soils and time-course variation in water and organisms.
Use Cases
- Modeling the temporal decay and transport of Cs-137 in lake water and suspended dust.
- Analyzing the bioaccumulation of I-131 and Cs-134 in freshwater organisms over time.
- Correlating depth distribution of Cs-137 in lake soils with deposition events.
- Estimating regional radioactive fallout representative values for Japan based on Biwa Lake measurements.
Strengths
- Focuses on a specific, major nuclear event with a known start date (April 26, 1986).
- Covers multiple environmental matrices: air, surface water, lake soils, and organisms.
- Tracks multiple radioactive nuclides, including I-131, Cs-137, and Cs-134.
Limitations
- Exact sample size, temporal resolution, and observation period are unknown.
- Geographic scope is limited to the Osaka region and Biwa Lake, central Japan.
- Data on column names, file formats, and precise measurement methodologies are unavailable.
Provenance
- Source
- SCIOPS, accessed via NASA EarthData.
- Collection Method
- Environmental monitoring of suspended dust, surface water, lake soils, and organisms.
- Time Range
- Observations began after the Chernobyl accident on April 26, 1986; end date unknown.
- Freshness
- null
- Geography
- Osaka region and Biwa Lake, located in the approximate center of Japan.