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Filtering by: Contributor advisor sim Cohen, Warren Remove constraint Contributor advisor sim: Cohen, Warren

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Landsat-based monitoring of annual wetland change in the main-stem Willamette River floodplain of Oregon, USA from 1972 to 2012

Creator:

Fickas, Kate C.

Abstract:

Despite holding substantial ecological value, wetlands in the United States have experienced a significant decline in both area and function over the past century with the majority of freshwater wetland loss attributed to agricultural conversion. Agriculture is the second largest industry in the State of Oregon and the State places...

Resource Type:

Masters Thesis
Evaluation functions in aerial image segmentation

Creator:

Langford, William T.

Abstract:

Remote sensing is the most practical way to acquire large amounts of land cover data for monitoring and understanding environmental change, so it is important to be able to map land cover from imagery. Maps defining land cover patches as polygons rather than pixels greatly improve processing efficiency in models...

Resource Type:

Dissertation
Remote sensing of forest biomass dynamics using Landsat-derived disturbance and recovery history and lidar data

Creator:

Pflugmacher, Dirk

Abstract:

Improved monitoring of forest biomass is needed to quantify natural and anthropogenic effects on the terrestrial carbon cycle. Landsat's temporal and spatial coverage, fine spatial grain, and long history of earth observations provide a unique opportunity for measuring biophysical properties of vegetation across large areas and long time scales. However,...

Resource Type:

Dissertation
Distinguishing between live and dead standing tree biomass on the North Rim of Grand Canyon National Park, USA using small-footprint lidar data

Creator:

Kim, YunSuk

Abstract:

Accurate estimation of live and dead biomass in forested ecosystems is important for studies of carbon dynamics, biodiversity, and wildfire behavior, and for forest management. Lidar remote sensing has been used successfully to estimate live biomass, but studies focusing on dead biomass are rare. We used lidar data, in conjunction...

Resource Type:

Masters Thesis
Comparison of regression and geostatistical methods to develop LAI surfaces for NPP modeling

Creator:

Berterretche, Mercedes

Abstract:

This study aims to compare different methods of obtaining maximum growing season leaf area index (LAI) maps using remote sensing data, LAI and tree cover field data in a boreal forest near Thompson, Manitoba, Canada. The comparison includes aspatial methods such as traditional regression, inverse regression and reduced major axis,...

Resource Type:

Masters Thesis
Mapping mortality following a long-term drought in a pinyon-juniper ecosystem in Arizona and New Mexico using Landsat data

Creator:

Kirschbaum, Alan A.

Abstract:

Protracted drought in the southwest U.S. has had significant impacts on the region’s keystone ecosystem, the pinyon-juniper (PJ) woodlands. Drought conditions in 9 of the last 10 years, exacerbated by extreme drought in one year, stressed the pinyon pine (Pinus edulis) trees, making them highly vulnerable to native ips beetles...

Resource Type:

Masters Thesis

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Academic Affiliation

Forest Science3
Forest Ecosystems and Society2
Computer Science1

Advisor

Cohen, Warren6
Dietterich, Thomas G.1
Jones, Julia A.1

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 2002 to 2014

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Committee Member

Kennedy, Robert2
Bolte, John1
Cull, Paul1
Jones, Julia1
Kauffman, Boone1
more Committee Members »

Creator

Berterretche, Mercedes1
Fickas, Kate C.1
Kim, Yunsuk1
Kirschbaum, Alan A.1
Langford, William T.1
more Creators »

Date

Date range begin – Date range end

Current results range from 2001 to 2014

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Decade

2010-20192
2000-20094

Degree Field

Forest Science4
Computer Science1
Forest Ecosystems and Society1

Degree Level

Master's4
Doctoral2

Degree Name

Master of Science (M.S.)4
Doctor of Philosophy (Ph.D.)2

Language

English [eng]6

License

All rights reserved5

Non-Academic Affiliation

Oregon State University. Graduate School6

Peer Reviewed

No6

Resource Type

Masters Thesis4
Dissertation2

Rights Statement

In Copyright5
Copyright Not Evaluated1

Subject

Landsat satellites2
Aerial photography in geography1
Artificial satellites in forestry -- Blue Mountains (Or. and Wash.)1
Dead trees -- Arizona -- Grand Canyon National Park -- Remote sensing1
Digital mapping1
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