Our Research

XylemLab's projects combine cutting-edge satellite technology with local expertise to revolutionize agricultural monitoring and food security across Africa. Partnering with NASA, GEOGLAM, AGRA, Lacuna Fund, African governments, and universities, we create scalable, data-driven solutions that address real-world challenges. Together, we're transforming agricultural obstacles into opportunities for sustainable growth and resilience.

On-Going Research

Currently 7 active projects spanning food security, climate risk, and agricultural monitoring across East Africa. Our work integrates satellite imagery, field surveys, and machine learning to generate actionable insights for farmers, governments, and aid organizations.
Conflict, Displacement and Landuse
Remote Sensing

Conflict, Displacement and Landuse

Mapping land cover change in conflict-affected regions to assess displacement patterns and agricultural disruption across East Africa.

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Drought Mapping and Monitoring

Drought Mapping and Monitoring

Tracking drought event frequency and severity across sub-Saharan Africa using satellite-derived indices and population exposure data.

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Cropland Mapping

Cropland Mapping

Classifying crop and non-crop areas from multi-spectral satellite imagery to support agricultural monitoring across the continent.

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Featured Project

Helmets Labeling Crops

A citizen science initiative using GoPro-equipped motorbike riders to collect field-level crop labels, enabling scalable ground truth datasets across Kenya.

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Helmets Labeling Crops
Weather Shocks on Dietary Quality

Weather Shocks on Dietary Quality

Analyzing how inter-annual climate variability drives dietary diversity outcomes in smallholder farming households.

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Mapping Extreme Events

Mapping Extreme Events

Using before-and-after satellite imagery to assess infrastructure and land damage from floods, landslides, and other extreme events.

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Yield and Production Estimation

Yield and Production Estimation

Integrating remote sensing and household survey data to forecast smallholder crop yields at district and national scales.

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Recent Funded Projects

Securing the future of agriculture through strategic global partnerships and research grants.

Regional Food Balance Sheet

Harvest Africa

Helmets Labeling Crops

NASA SERVIR

Enabling Crop Analytics at Scale (ECAAS) - Kenya

EO-FARM SwissRe Foundation

Optimizing Crop Yield Data Collection for Supply Chain Enhancement

Localized Monitoring
UMD Team
Field Research
Data Interface
Field Landscape

On-Going Research

npj Sustainable Agriculture (2025)

A framework for EO-based National Agricultural Monitoring (EO-NAM) for the African Context

Nakalembe, C., Kerner, H. R., Zvonkov, I., Humber, M., Galvez, A. S., Makabe, E., … & Becker-Reshef, I.

Scientific Data (2025)

Helmets Labeling Crops: Kenya Crop Type Dataset Created via Helmet-Mounted Cameras and Deep Learning

Nakalembe, C., Zvonkov, I., Kerner, H., Botchway Frimpong, D., Mwangi, K., Kioko, J., Tokas, B., et al.

PNAS (2025)

To enhance sustainable development goal research, open up commercial satellite image archives

Rufin, P., Meyfroidt, P., Akinyemi, F. O., Estes, L., Ibrahim, E. S., Jain, M., Kerner, H., …, Nakalembe, C., et al.

Research Square · Preprint (2024)

A Framework for EO-Based National Agricultural Monitoring (EO-NAM) — For the African Context

Nakalembe, C., Kerner, H., Zvonkov, I., et al.

Perspectives of Earth and Space Scientists (2024)

Whose priorities? Examining inequities in Earth observation advancements across Africa

Nakalembe, C., Devereux, T., & Ginsburg, A.

Frontiers in Climate (2025)

A 40-year remote sensing analysis of spatiotemporal temperature and rainfall patterns in Senegal

Nakalembe, C., et al.

Nature Reviews Earth & Environment (2024)

Assessing and addressing the global state of food production data scarcity

Kebede, E. A., Abou Ali, H., Clavelle, T., …, Nakalembe, C., et al.

Scientific Data (2024)

How accurate are existing land cover maps for agriculture in Sub-Saharan Africa?

Kerner, H., Nakalembe, C., Yang, A., Zvonkov, I., McWeeny, R., Tseng, G., & Becker-Reshef, I.

Science of Remote Sensing (2024)

Satellite data shows resilience of Tigrayan farmers in crop cultivation during civil war

Kerner, H. R., Nakalembe, C., Yeh, B., Zvonkov, I., Skakun, S., Becker-Reshef, I., & McNally, A.