LIAISE Radiometer Network: High-Frequency Solar Spectral Irradiance

From 14 to 28 July 2021, this dataset contains measurements from a network of 15 radiometers deployed during the LIAISE field campaign. It provides high-frequency solar spectral irradiance at 10 Hz, along with derived total shortwave irradiance and column-integrated water vapor at multiple temporal resolutions. All data is quality-controlled with metadata and flags, and Level 2 data is calibrated against high-quality references.

Use Cases

• Validating satellite-derived surface solar irradiance products using ground-based 10 Hz spectral measurements.
• Analyzing the spatial variability of total column water vapor across a network of 15 sensor locations.
• Studying high-frequency temporal dynamics of the solar spectrum for atmospheric correction algorithms.
• Calibrating or testing radiative transfer models with quality-controlled, multi-resolution (10 Hz, 1 sec, 1 min) irradiance data.

Strengths

• Data is quality-controlled and includes metadata and quality flags for all records.
• Level 2 derived data (rsds, prw) is calibrated against high-quality references.
• Provides data at multiple temporal resolutions (10 Hz, 1 sec, 1 minute) for cross-scale analysis.
• Includes raw (Level 0) sensor data alongside processed (Level 1, Level 2) versions.

Limitations

• Specific row counts, file sizes, and detailed column names are not provided in the source metadata.
• The dataset covers a limited time range of only 15 days in July 2021.
• A version history note indicates a past bug in wavelength labeling for 10 Hz spectrum data, though it was fixed.

Provenance

Source

Wageningen University & Research, collected during the LIAISE field campaign.

Collection Method

Measurements from a spatial network of 15 radiometers.

Time Range

14 July 2021 to 28 July 2021

Geography

Location of the LIAISE field campaign (specific region not detailed in input).