A 2007 daily global summary product from NASA's Multi-angle Imaging SpectroRadiometer (MISR) instrument. It provides statistical summaries of land surface parameters, including directional hemispherical reflectance (DHR), fractional absorbed photosynthetically active radiation (FPAR), and NDVI, gridded at a 0.5-degree by 0.5-degree resolution. Data collection for this version 2 product is complete.
Use Cases
- Modeling land surface bidirectional reflectance factor (BRF) using the provided BRF model parameters for radiative transfer studies.
- Analyzing vegetation health and photosynthetic activity trends using the daily fractional absorbed photosynthetically active radiation (FPAR) and DHR-based NDVI data.
- Studying spectral reflectance properties across different view angles (0 to 70.5 degrees) via the directional hemispherical reflectance (DHR) values for four spectral bands.
- Classifying and monitoring global land cover using the product's classification into six vegetated and one non-vegetated type.
Strengths
- Global spatial coverage achieved through MISR's nine-camera system.
- Data reported on a consistent geographic grid with 0.5-degree by 0.5-degree resolution.
- Provides multi-angle observations from nine cameras at view angles of 0, 26.1, 45.6, 60.0, and 70.5 degrees.
Limitations
- Temporal coverage is stale, with the last update recorded in August 2007.
- Specific sample size (row count) and data volume are unknown from the provided description.
Provenance
- Source
- NASA Langley Research Center (LARC_CLOUD) via the NASA Earthdata platform.
- Collection Method
- Derived from MISR Level 2 land/surface parameters, averaged over a day from nine push-broom cameras measuring radiance in four spectral bands.
- Time Range
- Daily coverage; specific start and end dates are unknown.
- Freshness
- Data collection is complete; product last updated in 2007.
- Geography
- Global land coverage.