African Leaf Area Index And FPAR Time Series From MODIS

Leaf Area Index and Fraction of Photosynthetically Active Radiation rasters provide continent-wide data for Africa. Calculations include time series average, standard deviation, and variance derived from NASA MODIS MCD43A3 observations. The Africa Soil Information Service (AfSIS) released this collection in 2012, with annual updates using data from the USGS LPDAAC.

Use Cases

• Modeling vegetation productivity by analyzing the time series average of the Fraction of Photosynthetically Active Radiation (FPAR).
• Assessing spatial variability in canopy density using the time series standard deviation of the Leaf Area Index (LAI).
• Monitoring annual changes in photosynthetic activity by comparing yearly updated LAI and FPAR rasters.
• Studying climate-vegetation interactions across Africa with 8-day temporal resolution LAI data.

Strengths

• Continent-wide spatial coverage for Africa.
• Annual updates provide a time series for change detection.
• 1-kilometer spatial resolution for regional analysis.
• Includes derived statistical layers: average, standard deviation, and variance.

Limitations

• Data release is from 2012, making the core collection temporally stale for current analysis.
• Specific row/column counts and total file size are unknown.
• Limited to the MODIS sensor's capabilities and may be superseded by newer instruments.

Provenance

Source

NASA MODIS MCD43A3 product, processed by the Africa Soil Information Service (AfSIS) with data from the USGS Land Processes DAAC.

Collection Method

Derived calculations (average, standard deviation, variance) performed on MODIS observations.

Time Range

null

Freshness

Updated annually, but the foundational collection release was in 2012.

Geography

Continent of Africa.