High-Resolution Cropland Map for the West African Sahel

Related publication: Samasse, K., Hanan, N. P., Anchang, J., and Diallo, Y. (2020).   Remote Sensing,   12, 1436. doi:   10.3390/rs12091436.

Google Earth Engine Demo

Woody Canopy Cover in Tropical Savannas

Related publication: Anchang, J., Prihodko, L., Ji, W., Kumar, S.S., Ross, C.W., Yu, Q.   et al. (2020).   Frontiers in Environmental Science,   8, 4. doi:   10.3389/fenvs.2020.00004.

Google Earth Engine Demo

Woody Vegetation Cover in African Savannas

Woody vegetation properties (i.e. cover, crown size, and density) estimated from very high resolution satellite imagery in African savannas

Related publications:

• Axelsson, C.R. & Hanan, N.P. (2018). Rates of woody encroachment in African savannas reflect water constraints and fire disturbance.   Journal of Biogeography,   45, 1209-1218. doi:   10.1111/jbi.13221.
• Axelsson, C.R. & Hanan, N.P. (2017). Patterns in woody vegetation structure across African savannas.   Biogeosciences,   14, 3239-3252. doi:   10.5194/bg-14-3239-2017.

Data from: Effects of Tree Harvest on the Stable-State Dynamics of Savanna and Forest

DOI: 10.5061/dryad.vg121

Responses from 100 household interviews, 20 each from three villages in Mali and 10 each from two villages that were very nearby. Included are responses to questions about the percent of fuelwood purchased versus collected by the household, and, of the percentage collected, the proportion that is cut from live trees versus obtained dead on the ground

Related publication:

• Tredennick, A.T. & Hanan, N.P. (2015). Effects of tree harvest on the stable-state dynamics of savanna and forest.   American Naturalist,   185, E153-E165. doi:   10.1086/680475.

Characteristics of African Savanna Biomes for Determining Woody Cover

DOI: 10.3334/ORNLDAAC/850

Soil and vegetation characteristics, herbivore estimates, and precipitation measurement data for the 854 sites in African savannas

Related publications:

• Sankaran, M., Hanan, N.P., Scholes, R.J., Ratnam, J., Augustine, D.J., Cade, B.S.   et al. (2005). Determinants of woody cover in African savannas.   Nature,   438, 846-849. doi:   10.1038/nature04070.

SAFARI 2000 Surface Albedo and Radiation Fluxes at Mongu and Skukuza, 2000-2002

DOI: 10.3334/ORNLDAAC/786

Top-of-the-canopy broadband albedo and radiation fluxes calculated from measurements at the Mongu and Skukuza flux tower sites in southern Africa from March 2000 through December 2002

Related publication:

• Privette, J.L., Myneni, R.B., Knyazikhin, Y., Mukufute, M., Roberts, G., Tian, Y.   et al. (2002). Early spatial and temporal validation of MODIS LAI product in Africa.   Remote Sensing of Environment,   83, 232-243. doi:   10.1016/S0034-4257(02)00075-5.

SAFARI 2000 Meteorological Tower Measurements, Kruger National Park, 2000-2002

DOI: 10.3334/ORNLDAAC/761

Meteorological measurements (30-minute averages) from an eddy covariance system mounted on a tower near the Skukuza Camp in Kruger National Park, South Africa from 2000 to 2002

Related publications:

• Hanan, N.P., Biggs, H., Potgeiter, A.,Mavundla, M. & Scholes, R.J. (2000).   Function and fire in African savanna ecosystems: New and long-term research in Kruger National Park, South Africa. Proceedings of Ecological Society of America 85th Annual Meeting, LTER All Scientists Meeting, Snowbird, Utah, U.S.A.
• Hanan, N.P., Scholes, R.J. & Privette, J.L. (2001).   Carbon, water and energy fluxes in an African savanna ecosystem. Proceedings of AGU Fall Meeting, San Fransisco, CA, U.S.A.