Thomas Loveland (Former Employee)
Science and Products
Filter Total Items: 143
Mapping an invasive plant, Phragmites australis, in coastal wetlands using the EO-1 Hyperion hyperspectral sensor Mapping an invasive plant, Phragmites australis, in coastal wetlands using the EO-1 Hyperion hyperspectral sensor
Mapping tools are needed to document the location and extent of Phragmites australis, a tall grass that invades coastal marshes throughout North America, displacing native plant species and degrading wetland habitat. Mapping Phragmites is particularly challenging in the freshwater Great Lakes coastal wetlands due to dynamic lake levels and vegetation diversity. We tested the...
Authors
Bruce Pengra, C.A. Johnston, Thomas R. Loveland
Comparative analysis of GPP products estimated from an empirical model and MODIS Comparative analysis of GPP products estimated from an empirical model and MODIS
Carbon-cycle models have uncertainties associated with data inputs, parameters, and model algorithms. The prerequisite for an applicable model is that it should perform at an acceptable level of accuracy and uncertainties should be documented. In this study, we validated the gross primary productivity (GPP) data from a piecewise regression (PWR) model and the MODIS GPP model at five...
Authors
Li Zhang, Bruce K. Wylie, Thomas Loveland, Lei Ji
Upscaling terrestrial carbon dynamics from sites to regions with uncertainty measures—The GEMS experience Upscaling terrestrial carbon dynamics from sites to regions with uncertainty measures—The GEMS experience
No abstract available.
Authors
Shuguang Liu, Z. Li, Jinxun Liu, Thomas Loveland, M. Chen, Larry L. Tieszen
Land use/land cover change effects on temperature trends at U.S. Climate Normals stations Land use/land cover change effects on temperature trends at U.S. Climate Normals stations
Alterations in land use/land cover (LULC) in areas near meteorological observation stations can influence the measurement of climatological variables such as temperature. Urbanization near climate stations has been the focus of considerable research attention, however conversions between non-urban LULC classes may also have an impact. In this study, trends of minimum, maximum, and...
Authors
R. C. Hale, K. P. Gallo, T.W. Owen, Thomas R. Loveland
United States of America United States of America
No abstract available.
Authors
D.E. Napton, Thomas R. Loveland
Temporal evolution of carbon budgets of the Appalachian forests in the U.S. from 1972 to 2000 Temporal evolution of carbon budgets of the Appalachian forests in the U.S. from 1972 to 2000
Estimating dynamic terrestrial ecosystem carbon (C) sources and sinks over large areas is difficult. The scaling of C sources and sinks from the field level to the regional level has been challenging due to the variations of climate, soil, vegetation, and disturbances. As part of an effort to estimate the spatial, temporal, and sectional dimensions of the United States C sources and...
Authors
J. Liu, S. Liu, Thomas R. Loveland
Science and Products
Filter Total Items: 143
Mapping an invasive plant, Phragmites australis, in coastal wetlands using the EO-1 Hyperion hyperspectral sensor Mapping an invasive plant, Phragmites australis, in coastal wetlands using the EO-1 Hyperion hyperspectral sensor
Mapping tools are needed to document the location and extent of Phragmites australis, a tall grass that invades coastal marshes throughout North America, displacing native plant species and degrading wetland habitat. Mapping Phragmites is particularly challenging in the freshwater Great Lakes coastal wetlands due to dynamic lake levels and vegetation diversity. We tested the...
Authors
Bruce Pengra, C.A. Johnston, Thomas R. Loveland
Comparative analysis of GPP products estimated from an empirical model and MODIS Comparative analysis of GPP products estimated from an empirical model and MODIS
Carbon-cycle models have uncertainties associated with data inputs, parameters, and model algorithms. The prerequisite for an applicable model is that it should perform at an acceptable level of accuracy and uncertainties should be documented. In this study, we validated the gross primary productivity (GPP) data from a piecewise regression (PWR) model and the MODIS GPP model at five...
Authors
Li Zhang, Bruce K. Wylie, Thomas Loveland, Lei Ji
Upscaling terrestrial carbon dynamics from sites to regions with uncertainty measures—The GEMS experience Upscaling terrestrial carbon dynamics from sites to regions with uncertainty measures—The GEMS experience
No abstract available.
Authors
Shuguang Liu, Z. Li, Jinxun Liu, Thomas Loveland, M. Chen, Larry L. Tieszen
Land use/land cover change effects on temperature trends at U.S. Climate Normals stations Land use/land cover change effects on temperature trends at U.S. Climate Normals stations
Alterations in land use/land cover (LULC) in areas near meteorological observation stations can influence the measurement of climatological variables such as temperature. Urbanization near climate stations has been the focus of considerable research attention, however conversions between non-urban LULC classes may also have an impact. In this study, trends of minimum, maximum, and...
Authors
R. C. Hale, K. P. Gallo, T.W. Owen, Thomas R. Loveland
United States of America United States of America
No abstract available.
Authors
D.E. Napton, Thomas R. Loveland
Temporal evolution of carbon budgets of the Appalachian forests in the U.S. from 1972 to 2000 Temporal evolution of carbon budgets of the Appalachian forests in the U.S. from 1972 to 2000
Estimating dynamic terrestrial ecosystem carbon (C) sources and sinks over large areas is difficult. The scaling of C sources and sinks from the field level to the regional level has been challenging due to the variations of climate, soil, vegetation, and disturbances. As part of an effort to estimate the spatial, temporal, and sectional dimensions of the United States C sources and...
Authors
J. Liu, S. Liu, Thomas R. Loveland