Index Catalog // ScholarsArchive@OSU

A per-segment approach to improving aspen mapping from remote sensing imagery and its implications at different scales

Creator:: Heyman, Ofer
Abstract:: A per-segment classification system was developed to map aspen (Populus tremuloides) stands on Winter Ridge in central Oregon from remote sensing imagery. A 1-meter color infrared (CIR) image was segmented based on its hue and saturation values to generate aspen "candidates", which were then classified to show aspen coverage according...
Resource Type:: Dissertation

Vegetation characteristics expressed through transformed MODIS data : a MODIS tasseled cap

Creator:: Lobser, Sarah E.
Abstract:: The MODIS NBAR (M0D43B4) data space is explored in terms of biophysical variables with the objective of formulating a MODIS transformation relevant to global vegetation studies. The basic ideas of transform formulation were borrowed from the development of the TM Tasseled Cap transformation, but with differences in sampling strategy and...
Resource Type:: Masters Thesis
Full Text:: relevance to this study is the wealth of knowledge acquired about the remote sensing of vegetation

Airborne videography as a classification and validation technique for Landsat TM-based vegetation mapping

Creator:: Barrett, Charley, 1965-
Abstract:: The Oregon Department of Fish and Wildlife's (ODFW) Ecological Analysis Center (EAC) is in the process of creating, from Landsat Thematic Mapper (TM) imagery, a vegetation map of Oregon that will meet the latest standards set by the National Gap Analysis Program. Since field verification is often expensive and by...
Resource Type:: Masters Thesis

A mathematical transformation of multi-angular remote sensing data for the study of vegetation change

Creator:: Friedel, Robert G.
Abstract:: Vegetation change is an important factor affecting the global carbon cycle, land-atmosphere interaction, and terrestrial ecology. The study of vegetation change on a global scale can be used to evaluate the impact of global climate change on terrestrial ecosystems. Satellite remote sensing can monitor vegetation change at the global scale,...
Resource Type:: Masters Thesis
Full Text:: . Satellite remote sensing can monitor vegetation change at the global scale, providing continuous samples

Three methods for estimating subpixel cover fractions in coarse resolution imagery

Creator:: Damon, Diane L.
Abstract:: Coarse resolution imagery, such as that produced by the MODIS instrument, poses the challenge of estimating sub-pixel proportions of di erent land cover types. This problem is di cult because of the variety and variability of vegetation within individual pixels. This thesis describes and compares two existing algorithms for estimating...
Resource Type:: Masters Thesis
Full Text:: classes have traditionally been used in remote sensing-based mapping [24]. However, since pixels can

Multi-spatial scale representation of landscape transitions using landsat thematic mapper data and scale-space filters

Creator:: Lindeman, Dale R.
Abstract:: This thesis considered current approaches to describing landscape pattern, identified scale issues associated with defining objects, and explored techniques to reliably group elements based on land cover as represented by satellite imagery. It was recognized that there is an important need to develop tools that can be applied using remotely...
Resource Type:: Masters Thesis

Mapping vegetation density and water inundation in a recovering wetland : the Mesopotamian Marshlands

Creator:: Bosley, Jon Michael
Abstract:: Once considered the largest wetland in Central Asia, the Mesopotamian Marshlands of Southeastern Iraq have nearly disappeared. Various hydrological projects by the Iraqi government and dam construction in the region have nearly destroyed these once rich freshwater wetlands by over 90%. With the launching of Operation Iraqi Freedom recent attempts...
Resource Type:: Masters Thesis
Full Text:: ..............................................................................10 Remote Sensing Methods for Mapping Inundation and Vegetation.........................13 Some

Mapping vegetation using landsat TM and ETM+ in Eritrea

Creator:: Iyob, Biniam
Abstract:: The objective of this study was to examine vegetation and vegetation change in Eritrea over a period from the mid 1980s to 2002 using satellite remote sensing, and relate observed changes to the recent history of drought and war in the region. Specific objectives were (1) to examine vegetation change...
Resource Type:: Masters Thesis
Full Text:: ....................................................................................... 6 1.2 Regional (Sahelian) Vegetation Mapping Using Remote Sensing....... 9 1.3 Vegetation

Mapping surficial geologic habitats of the Oregon continental margin using integrated interpretive GIS techniques

Creator:: Romsos, Christopher G.
Abstract:: We map the regional physiography and surficial lithology (Surficial Geologic Habitat or SGH) over the continental margin of Oregon. This thesis develops, describes, and implements an iterative interpretive method to map seafloor habitat types from disparate geological and geophysical datasets including: bathymetric images, sidescan sonar images, seismic reflection profiles, sediment...
Resource Type:: Masters Thesis

Mapping semi-regular autonomous underwater vehicle glider observations onto a cross-shelf section

Creator:: Peery, Andrew Tristan
Abstract:: Two Autonomous Underwater Vehicle Gliders have alternated continuous sampling of a 45-nautical mile transect line (the Newport Hydrographic Line) across the Oregon continental shelf since April, 2006. Strong currents (>25cm/s) push the gliders off their trajectories as they survey this transect line, preventing them from sampling the historically occupied stations...
Resource Type:: Masters Thesis
Full Text:: presented on March 21, 2008. Title: Mapping Semi-Regular Autonomous Underwater Vehicle Glider Observations

ScholarsArchive@OSU

A per-segment approach to improving aspen mapping from remote sensing imagery and its implications at different scales

Vegetation characteristics expressed through transformed MODIS data : a MODIS tasseled cap

Airborne videography as a classification and validation technique for Landsat TM-based vegetation mapping

A mathematical transformation of multi-angular remote sensing data for the study of vegetation change

Three methods for estimating subpixel cover fractions in coarse resolution imagery

Multi-spatial scale representation of landscape transitions using landsat thematic mapper data and scale-space filters

Mapping vegetation density and water inundation in a recovering wetland : the Mesopotamian Marshlands

Mapping vegetation using landsat TM and ETM+ in Eritrea

Mapping surficial geologic habitats of the Oregon continental margin using integrated interpretive GIS techniques

Mapping semi-regular autonomous underwater vehicle glider observations onto a cross-shelf section

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