Clear Lake Water Quality and Hyperspectral Monitoring Dataset

UC Davis researchers conducted a five-year water quality monitoring program from 2019 to 2023 for Clear Lake, a critical but hypereutrophic drinking water source in Northern California. The dataset includes physical, chemical, and biological measurements aimed at understanding processes driving harmful cyanobacterial blooms. A supplementary 1.5-year campaign from July 2021 to October 2022 added HPLC phytoplankton pigment data and above-water spectroradiometry to support algorithm development for remote sensing.

Use Cases

• Analyzing temporal trends in physical and chemical parameters to identify drivers of harmful algal blooms (HABs).
• Calibrating remote sensing algorithms for cyanobacteria genera differentiation using coincident HPLC pigment data and DESIS hyperspectral imagery.
• Modeling lake rehabilitation strategies by linking watershed processes to in-lake water quality measurements.
• Studying phytoplankton community composition shifts over time using pigment chromatography data.

Strengths

• Provides a continuous five-year time series (2019-2023) of in-situ water quality monitoring.
• Includes a specialized 1.5-year sub-campaign with HPLC pigment and spectroradiometry data for remote sensing validation.
• Three sampling events are coincident with whole-lake hyperspectral images from the DESIS sensor, enabling direct comparison.

Limitations

• Specific column names, row counts, and dataset size are not provided by any source, limiting initial assessment.
• Sources conflict on license information, with one specifying 'other-license-specified' and another listing 'None'.
• The availability of the core monitoring data via the EDI DOI is noted, but the supplementary data's access method is less clear.

Provenance

Source

UC Davis Tahoe Environmental Research Center, funded by the California Department of Fish and Wildlife (AB 707), California Natural Resources Agency, and a NASA OSE fellowship.

Collection Method

In-situ water quality monitoring program with additional biological (HPLC) and optical (SVC HR-1024i spectroradiometer) measurements.

Time Range

2019 to 2023 for core monitoring, with supplementary data from July 2021 to October 2022.

Freshness

2026-03-12 20:03:59.540257

Geography

Clear Lake, Northern California, USA.