Remote sensing is a great toolbox, but unless those tools are used to solve real world problems, there is no reason they should exist. The problems I am interested in concern human interactions with natural processes that affect distributions of vegetation, and the health of that vegetation to support biodiversity. Because of this, my research focus is on the translation of remotely sensed data into useful ecological information for process modeling and resource management applications. Primary applications include inventory and monitoring, carbon dynamics, habitat, and biodiversity. By necessity, I focus on the full spectrum of analyses from calibrating raw sensor data through the development of land cover and cover change map products using innovative approaches.
Characterizing changes in information quality as data are coarsened from specific to more general is a key focus of my research. I remain actively engaged in exploiting newer sensors data such as lidar, and in integrating data from multiple sensors with field data for effective use in ecology. I am on the editorial board of the journal Remote Sensing of Environment and since the early 1990s, I have been actively engaged in several aspects of the Landsat satellite sensor program. Currently, I serve as a member of the Landsat Science Team, preparing for the launch of the Landsat Data Continuity Mission early next decade. On the personal front, I enjoy my family, yoga, old-time music, partying with friends, improving environmental awareness, peace (as opposed to war), and social liberalism (no specific order implied).

 

Warren B. Cohen
USFS Research Forester
LARSE Director

My research focuses on providing ecological science with tools to understand and map dynamic processes at the landscape, regional, and continental scales. Working with national parks in the western U.S., I am helping develop approaches to match available remote sensing technologies with long-term park monitoring goals. An important component of this and related work is tapping the long-term archive of Landsat Thematic Mapper archive, developing new trajectory-based approaches to better capture the processes on the landscape rather than just the static conditions at a single point in time. Another interest is development of sampling designs for national-scale estimation of forest disturbance and for better deployment of resources at the site and regional scale.
Robert Kennedy
OSU Research Associate &
LARSE Co-Director

I am interested in ecological modeling with remote sensing for landscape and regional ecological information; forest succession; ecological informatics and application development for ecological researches.
My current work includes linking time series of spectral data with different successional trajectories; spatial modeling of ecosystem production through BiomBGC modeling; developing methods to quantify uncertainties associated with remote sensing analysis.
Zhiqiang Yang
OSU Research Associate &
LARSE Co-Director

Creating and validating forest disturbance maps; modeling biophysical variables (stand age, LAI, biomass) using forest inventory and remotely sensed data, (primarily Landsat); managing LARSE image database and website; all around LARSE multi-tasker (aka "lab manager").
Outside of work, my husband and I spend a fair bit of time doing the things we like to do such as traveling, learning Spanish, yoga, telemark skiing, surfing, running in the mountains and on the beach, playing ultimate frisbee, birding, and just generally enjoying the northwest.

Maureen Duane
OSU Faculty
Research Assistant &
 LARSE Lab Manager

My research deals primarily with landscape-scale disturbances and how such perturbations shape vegetation structure and drive carbon dynamics. Specifically, this involves studying the effects of harvest, wildfire, and woody encroachment on forest structure, succession, and carbon dynamics. Currently my work is focused on the trade offs between carbon release due to forest thinning and potential pyrogenic emissions due to wildfire. Also I am involved with a study aimed at quantifying changes in carbon stocks associated with the encroachment of western juniper into range lands in Eastern Oregon.

John Campbell
OSU Research Associate

Research Interests: carbon cycling in forest ecosystems and management strategies for increasing carbon storage and sequestration, land cover and land-use change, ecology, succession, and disturbance regime of boreal forests, the role of woody detritus in forest ecosystems including biomass, carbon, and nutrient budgets, Russian environmental history, forestry, forest resources and their management, peatlands and their role in the global balance of greenhouse gasses.
Olga Krankina
OSU Assistant Professor
 

The focus of my research is on the role of forests, woodlands and shrublands in the global carbon cycle. I am the principal investigator of the Metolius ponderosa pine AmeriFlux sites that are in different developmental stages following disturbance, where the goal is to understand how different successional stages of the entire forest ecosystems (plants and soils) respond to disturbances such as land management and wildfire, and to interannual variation in climate. My research includes environmental controls over ecosystem carbon dioxide and water vapor exchange, physiological responses to drought, and coupling of canopy gas exchange and root-rhizosphere respiration. My past work has taken me to diverse habitats, from pine forests in the Southeast, to fir forests in the upper Mid-West US, to deciduous forests in the Northeast US, to Oregon’s semi-arid woodlands and shrublands, as well as montane and coastal evergreen forests. Personal interests include hiking, scuba diving, and photography.
Bev Law
OSU Associate Professor

With a background in environmental education, recreation, and land management, I use remote sensing and geographic information systems to create maps that show people what is happening on planet earth.  My current work includes validation for the LEDAPS project and image analysis for the NELDA project.  Previously, I have contributed towards predicting invasive weeds on the Pacific Crest Trail in southwest Oregon, identifying short vegetation in the southern Cascade Mountains using LiDAR and Landsat TM, analyzing effects of the Biscuit Wildfire in southwest Oregon, and surveying for rare plants.  Though I spend many hours exploring the virtual world, I enjoy exploring the real world, too.  As often as possible, I am hiking, boating, skiing, traveling, and wandering through the western U.S.

Peder Nelson

OSU Faculty

Research Assistant

I recently completed my MS degree at Southern Oregon University studying non-conifer vegetation patterns in relation to environmental and disturbance variables. My masters’ thesis work in addition to my earlier field research in fire ecology, wildlife, and botany, led to an interest in landscape and disturbance ecology as well as plant and animal distributions. As a Research Assistant for LARSE I have been able to continue investigating these interests using remote sensing and GIS. While working in this virtual world I use my past field experiences to critically analyze our remotely sensed products. I am currently validating and performing spatial analysis on a stand replacement disturbance map of northern California. I also recently worked on a project monitoring vegetation changes over time in national parks in southwest Alaska. In my free time I like to get outside and explore whenever I can. I enjoy mountain biking, skiing, backpacking, and rafting.

 

Eric Pfaff

OSU Faculty

Research Assistant

My research interests are in ecology and remote sensing, and they revolve around the observation and quantification of changing landscapes and the challenge of unraveling the driving processes and consequences.  Having recently migrated back to Montana, my primary research focus is on the disturbance-driven forests of the Rocky Mountains and the Pacific Northwest.  My PhD research dealt with quantification of conifer forest encroachment in the Yellowstone region.  My current LARSE research deals with investigating linkages between the Forest Service’s Forest Inventory and Analysis (FIA) data and Landsat satellite image time-series to characterize biomass dynamics associated with forest disturbance and regrowth.  I also recently completed a project for the Washington Department of Fish and Wildlife characterizing trends in impervious surface in a rapidly urbanizing region of western Washington.  My personal interests currently revolve around the newest addition in my life, my daughter Augusta.

Scott Powell

USFS Postdoc

I work with Dave Turner on the ecosystem modeling component of the BigFoot project. Specifically, I maintain the data and processes used to model gross primary production (GPP) and net primary production (NPP). My expertise is in the management and analysis of spatial data.
Previously, I examined the spatial distribution of Port-Orford cedar root disease within the Smith River National Recreation Area, CA. As one would expect, the spatial distribution is highly clumped (spatially autocorrelated), and the closer a stand is to an existing infection the more likely it is to become infected. Go figure!
In a past life before heading into the realm of natural resources and ecology, I worked as an application developer for a big computer consulting company. I wore a suit and tie everyday and helped sell canned fruits and vegetables. I am clearly heading in a better direction.

Dave Ritts
OSU Senior Faculty
Research Assistant
 

My research interests are primarily in the area of spatially-distributed application of ecosystem models for carbon cycle analysis.  I look to remote sensing sensors including Landsat, MODIS, and ICEsat for spatially extensive model inputs.  I am particularly concerned with issues of spatial resolution, algorithm development, and model validation.  Current studies are focused on the carbon budget of the West Coast of the US and previous studies have included sites ranging from the Amazon Basin to Barrow Alaska.  In my classes and general science writing I am especially interested in the global scale relationship of humanity to the biosphere.  I enjoy family and friends, hiking, mountain biking, playing guitar, and travel.
David Turner
OSU Associate Professor
 

 


Warren Cohen, Director
Robert Kennedy & Zhiqiang Yang, co-Directors
Maureen Duane, Lab Manager
USDA Forest Service and Oregon State University
3200 SW Jefferson Way
Corvallis, OR 97331
larse@fsl.orst.edu
Disclaimers