Publications
Below is a list of the most recent EROS peer-reviewed scientific papers, reports, fact sheets, and other publications. You can search all our publication holdings by type, topic, year, and order.
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Filter Total Items: 2456
Landsat-7 ETM+ on-orbit reflective-band radiometric stability and absolute calibration
Launched in April 1999, the Landsat-7 Enhanced Thematic Mapper Plus (ETM+) instrument is in its sixth year of operation. The ETM+ instrument has been the most stable of any of the Landsat instruments. To date, the best onboard calibration source for the reflective bands has been the Full Aperture Solar Calibrator, a solar-diffuser-based system, which has indicated changes of between 1% to 2% per y
Authors
B. L. Markham, K. J. Thome, J. A. Barsi, E. Kaita, Dennis L. Helder, J. L. Barker, Pat Scaramuzza
Landsat sensor performance: history and current status
The current Thematic Mapper (TM) class of Landsat sensors began with Landsat-4, which was launched in 1982. This series continued with the nearly identical sensor on Landsat-5, launched in 1984. The final sensor in the series was the Landsat-7 Enhanced Thematic Mapper Plus (ETM+), which was carried into orbit in 1999. Varying degrees of effort have been devoted to the characterization of these ins
Authors
B. L. Markham, James C. Storey, Darrel L. Williams, J. R. Irons
Foreword to the special issue on Landsat sensor performance characterization
No abstract available.
Authors
B. L. Markham, M. M. Crawford, D.G. Goodenough, J. R. Irons
Understanding the drivers of agricultural land use change in south-central Senegal
Described is (1) the land use and land cover changes that have taken place in the Department of Velingara, an area of tropical dry woodland in south-central Senegal, (2) the biophysical and socio-economic drivers of those changes with an emphasis on transition to agricultural use, and (3) an assessment of the likelihood of intensification of agriculture in the Department. Results indicate that lan
Authors
E. C. Wood, G. Gray Tappan, Amadou Hadj
The social context of carbon sequestration: considerations from a multi-scale environmental history of the Old Peanut Basin of Senegal
This paper presents the results of a multi-scale investigation of environmental change in the Old Peanut Basin of Senegal throughout the 20th century. Based on historical accounts, ethnographies, aerial photos, satellite images, field and household surveys as well as various participatory research activities with farmers in selected villages, the study attempts to make explicit layered scales of a
Authors
P. Tschakert, G. Tappan
Sequestration of carbon in soil organic matter in Senegal: an overview
Sequestration of Carbon in Soil Organic Matter (SOCSOM) in Senegal is a multi-disciplinary development project planned and refined through two international workshops. The project was implemented by integrating a core of international experts in remote sensing, biogeochemical modeling, community socio-economic assessments, and carbon measurements in a fully collaborative manner with Senegal organi
Authors
Larry L. Tieszen, G. Gray Tappan, A. Toure
Ecological impact of historical and future land-use patterns in Senegal
The CENTURY model was used to simulate changes in total system carbon resulting from land-use history (1850–2000), and impacts of climatic changes and improved land-use management practices in Senegal. Results show that 0.477 Gtons of carbon have been lost from 1850 to 2000. Improved management practices have the potential of increasing carbon levels by 0.116 Gtons from 2000 to 2100. Potential to
Authors
W. Parton, G. Gray Tappan, D. Ojima, P. Tschakert
Impacts of land use and climate change on carbon dynamics in south-central Senegal
Total carbon stock in vegetation and soils was reduced 37% in south-central Senegal from 1900 to 2000. The decreasing trend will continue during the 21st century unless forest clearing is stopped, selective logging dramatically reduced, and climate change, if any, relatively small. Developing a sustainable fuelwood and charcoal production system could be the most feasible and significant carbon se
Authors
Shu-Guang Liu, M. Kaire, Eric C. Wood, O. Diallo, Larry L. Tieszen
Ecoregions and land cover trends in Senegal
This study examines long-term changes in Senegal's natural resources. We monitor and quantify land use and land cover changes occurring across Senegal using nearly 40 years of satellite imagery, aerial surveys, and fieldwork. We stratify Senegal into ecological regions and present land use and land cover trends for each region, followed by a national summary. Results aggregated to the national lev
Authors
G. Gray Tappan, M. Sall, E.C. Wood, Matthew Cushing
A simplified diagnostic model of orographic rainfall for enhancing satellite-based rainfall estimates in data-poor regions
An extension of Sinclair's diagnostic model of orographic precipitation (“VDEL”) is developed for use in data-poor regions to enhance rainfall estimates. This extension (VDELB) combines a 2D linearized internal gravity wave calculation with the dot product of the terrain gradient and surface wind to approximate terrain-induced vertical velocity profiles. Slope, wind speed, and stability determine
Authors
Christopher C. Funk, Joel C. Michaelsen
Filling Landsat ETM+ SLC-off gaps using a segmentation model approach
The purpose of this article is to present a methodology for filling Landsat Scan Line Corrector (SLC)-off gaps with same-scene spectral data guided by a segmentation model. Failure of the SLC on the Landsat 7 Enhanced Thematic Mapper Plus (ETM+) instrument resulted in a loss of approximately 25 percent of the spectral data. The missing data span across most of the image with scan gaps varying in s
Authors
Susan Maxwell
Trends in night-time city lights and vegetation indices associated with urbanization within the conterminous USA
Two datasets that depict the night-time light emitted from the conterminous USA during 1992/1993 and 2000 were compared for changes in light emission. The locations of observed differences in night-time light during this interval were examined for differences observed in a time-integrated vegetation index associated with net primary production. Just over 13% of the land area within the study regio
Authors
K. P. Gallo, C.D. Elvidge, L. Yang, Bradley C. Reed