Elijah Ramsey, III, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 76
Modeling mangrove canopy reflectance using a light interaction model and an optimization technique Modeling mangrove canopy reflectance using a light interaction model and an optimization technique
At 20 sites, incorporating mixtures of black, red, and white mangroves, canopy reflectance spectra were derived from high resolution spectral data taken from a helicopter platform. Canopy characteristics were predicted from the canopy reflectance spectra by using measured and estimated data as inputs into a light-canopy interaction model within a optimization routine. Pertinent to...
Authors
Elijah Ramsey III, John R. Jensen
Monitoring flooding in coastal wetlands by using radar imagery and ground-based measurements Monitoring flooding in coastal wetlands by using radar imagery and ground-based measurements
Satellite radar was used in a Florida Juncus roemerianus marsh to map tidal flooding, a critical control of coastal vegetation distribution. Radar images taken during a time of near-continuous recordings of ground-based hydrology measurements directly linked marsh flooding to lowered radar returns and indicated a negative covariation between flood frequency and radar return. Flood-extent...
Authors
Elijah Ramsey
Monitoring Hurricane Andrew damage and recovery of the coastal Louisiana marsh using satellite remote sensing data Monitoring Hurricane Andrew damage and recovery of the coastal Louisiana marsh using satellite remote sensing data
No abstract available.
Authors
Elijah Ramsey III, S. Laine, Dirk Werle, Brian Tittley, David Lapp
National wetlands research center uses visual true color classification in waterfowl habitat mapping National wetlands research center uses visual true color classification in waterfowl habitat mapping
No abstract available.
Authors
Elijah Ramsey III, Steve Hartley
Spectral reflectance and canopy structure characteristics of gulf coast wetland vegetation types Spectral reflectance and canopy structure characteristics of gulf coast wetland vegetation types
Field measurements of canopy structure and species composition are related to spectral reflectance measurements taken with a radiometer over a number of marsh sites. Marsh vegetation types are discussed in terms of their characteristic canopy structure and phenology; the influence of these characteristics on spectral reflectance will be examined. Vegetation types that are discussed...
Authors
R. Spell, Elijah W. Ramsey III
Preliminary analysis of spectral data collected for the purpose of wetland discrimination Preliminary analysis of spectral data collected for the purpose of wetland discrimination
No abstract available.
Authors
Elijah Ramsey III, R. Spell, James B. Johnston
Science and Products
Filter Total Items: 76
Modeling mangrove canopy reflectance using a light interaction model and an optimization technique Modeling mangrove canopy reflectance using a light interaction model and an optimization technique
At 20 sites, incorporating mixtures of black, red, and white mangroves, canopy reflectance spectra were derived from high resolution spectral data taken from a helicopter platform. Canopy characteristics were predicted from the canopy reflectance spectra by using measured and estimated data as inputs into a light-canopy interaction model within a optimization routine. Pertinent to...
Authors
Elijah Ramsey III, John R. Jensen
Monitoring flooding in coastal wetlands by using radar imagery and ground-based measurements Monitoring flooding in coastal wetlands by using radar imagery and ground-based measurements
Satellite radar was used in a Florida Juncus roemerianus marsh to map tidal flooding, a critical control of coastal vegetation distribution. Radar images taken during a time of near-continuous recordings of ground-based hydrology measurements directly linked marsh flooding to lowered radar returns and indicated a negative covariation between flood frequency and radar return. Flood-extent...
Authors
Elijah Ramsey
Monitoring Hurricane Andrew damage and recovery of the coastal Louisiana marsh using satellite remote sensing data Monitoring Hurricane Andrew damage and recovery of the coastal Louisiana marsh using satellite remote sensing data
No abstract available.
Authors
Elijah Ramsey III, S. Laine, Dirk Werle, Brian Tittley, David Lapp
National wetlands research center uses visual true color classification in waterfowl habitat mapping National wetlands research center uses visual true color classification in waterfowl habitat mapping
No abstract available.
Authors
Elijah Ramsey III, Steve Hartley
Spectral reflectance and canopy structure characteristics of gulf coast wetland vegetation types Spectral reflectance and canopy structure characteristics of gulf coast wetland vegetation types
Field measurements of canopy structure and species composition are related to spectral reflectance measurements taken with a radiometer over a number of marsh sites. Marsh vegetation types are discussed in terms of their characteristic canopy structure and phenology; the influence of these characteristics on spectral reflectance will be examined. Vegetation types that are discussed...
Authors
R. Spell, Elijah W. Ramsey III
Preliminary analysis of spectral data collected for the purpose of wetland discrimination Preliminary analysis of spectral data collected for the purpose of wetland discrimination
No abstract available.
Authors
Elijah Ramsey III, R. Spell, James B. Johnston