Alaskan Tundra Plant Leaf Spectra and Chlorophyll Data

Alaskan tundra plant samples from three sites near Fairbanks, Utqiagvik, and Toolik provide leaf-level visible-near infrared spectral reflectance, chlorophyll fluorescence spectra, species, plant functional type, and chlorophyll content. Data were collected during the summers of 2019, 2020, and 2021 using a FluoWat leaf clip and a CCM-300 chlorophyll meter. The dataset is provided by the National Aeronautics and Space Administration.

Use Cases

• Validating satellite solar-induced fluorescence (SIF) products using ground-measured chlorophyll fluorescence spectra.
• Analyzing relationships between spectral reflectance, chlorophyll content, and plant functional type (PFT) for Arctic species.
• Modeling photosynthetic efficiency and light use via calculated fluorescence yield (Fyield) from 400 nm to 650/700 nm.
• Studying species-specific spectral signatures across three distinct Alaskan tundra field sites.

Strengths

• Data spans three consecutive summer field campaigns (2019-2021), providing temporal consistency.
• Includes multiple measured variables: spectral reflectance, fluorescence spectra, chlorophyll content, species, and plant functional type.
• Collected from three geographically distinct sites in Alaska (Fairbanks, Utqiagvik, Toolik), offering spatial variety.

Limitations

• Exact row count, file size, and specific column names are not provided by any source.
• Sources conflict on the last updated date: Data.gov lists 2026-03 12, while NASA Earthdata lists 2021-09-30.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Field measurements using a FluoWat leaf clip for spectra and a CCM-300 for chlorophyll content.

Time Range

2019-2021

Freshness

2026-03-12 20:35:46.087410

Geography

Field sites near Fairbanks, Utqiagvik, and Toolik, Alaska, U.S.