Research and Outreach Projects

I am Professor and Cooperative Extension Specialist in the Environmental Science, Policy and Management department and affiliated Professor of Geography at UC Berkeley. My main projects, interests, and current obsessions are:

Outreach

The Cooperative Extension Service was established in 1914 in partnership with the U.S. Department of Agriculture and Land Grant colleges. In California, Cooperative Extension is organized through the UC Division of Agriculture and Natural Resources, the division of the University of California system with a public mandate and the public trust to share research-based information with the public about healthy communities, nutrition, agricultural production and environmental stewardship. UC Berkeley was the first Land Grant college in California, and CNR currently has ~20 CE specialists. My outreach program involves creation, integration, and application of research-based technical knowledge for the benefit of the public, policy-makers, and land managers. My work focuses on vegetation change, vegetation monitoring, environmental management, and climate change.  

Farm To School (F2S)

Healthy kids and vibrant communities start with farm-fresh, nutritious meals. Through farm to school programs, schools purchase food from local farms, offer students food education, and deliver hands-on learning opportunities that support students’ academic achievement, health, and wellbeing. Along with my IGIS crew, we are partnering with others in UC and ANR to help evaluate the effectiveness of this important program. Mapping is going to play a big role in this project, and we are excited to contribute. The National F2S website; Our Evaluation Team website.

Drone Imagery Collection and Analysis

UAS, or unmanned aerial systems, commonly referred to as drones, address common spatial, temporal and cost-related challenges associated with satellite-collected imagery, and they are revolutionizing the way we collect data about agricultural and natural resources. They are fast becoming standard scientific data collection tools. With my IGIS program I am collecting drone imagery across a network of University of California living laboratories - the UC Natural Reserve System and the UC ANR Research and Extension Center System. These properties cover a spectrum from natural to managed landscapes and represent the diversity of California’s vegetation communities. Want help? Check out our Drone Services Center.

The California Vegetation Type Mapping Project (VTM)

The California Vegetation Type Mapping Project (VTM), led by Berkeley forester Albert Wieslander in 1920s, produced a record of California vegetation that covered nearly half of the state in exquisitely detailed maps and plots. Efforts in my lab to digitize historic data and make these data available began nearly two decades ago and have culminated in the release of an open data portal (vtm.berkeley.edu). The release of these data has made possible a number of important research avenues in which scholars, including me and my graduate students, have compared the historic VTM data with contemporary records of forest structure in California.

Forest Structure and Lidar

Lidar (light detection and ranging) data can be mined to identify and map key ecological components of forests. My lab has been working on best engineering workflows for Lidar creating data-derived products such as crown base height, ladder fuels, large tree density, as well as mapping vegetation to assist with fire behavior modeling, detecting fuel treatments and forest change due to forest management activities, and modeling wildlife habitat. These results are directly useful to forest managers.

More Information: My CV / my Google Scholar page / my Research Gate page / my Twitter page.