Results 281 to 290 of about 171,031 (310)
Some of the next articles are maybe not open access.
Landsat-7 and Landsat-5 thermal band calibration updates
SPIE Proceedings, 2009ABSTRACT Landsat-7 ETM+, launched in April 1999, and Landsat-5 TM, launched in 1984, both have a single thermal band. Both instrumentsÂ’ thermal band calibrations have been updated: ETM+ in 2001 for a pre-launch calibration error and TM in 2007 for data acquired since the current era of vicarious ca libration has been in place (1999) .
Simon J. Hook +4 more
openaire +2 more sources
Landsat 5/Landsat 7 underfly cross-calibration experiment
SPIE Proceedings, 2000There was a one-time opportunity to obtain nearly coincident coverage from both Landsat 5 and Landsat 7 as Landsat 7 drifted to its final orbital position during the initialization and verification phase following launch. During the underfly period, Landsat 7 Enhanced Thematic Mapper Plus (ETM+) data were collected using the U.S Landsat 7 ground ...
Michael J. Choate +2 more
openaire +2 more sources
Preface to Landsat Legacy Special Issue: Continuing the Landsat Legacy
Remote Sensing of Environment, 2012Since the launch of its first satellite in 1972, the Landsat program has demonstrated the insights that can be obtained through Earth observation at a resolution sensitive to both natural and human drivers. As a result, both scientific debate and environmental policy development are increasingly aided by information from the Landsat satellites.
Michael A. Wulder, Jeffrey G. Masek
openaire +2 more sources
Landsat 7: maintaining Landsat data continuity into the 21st Century
IGARSS '98. Sensing and Managing the Environment. 1998 IEEE International Geoscience and Remote Sensing. Symposium Proceedings. (Cat. No.98CH36174), 1998The Land Remote Sensing Policy Act of 1992 identified Landsat data continuity as the fundamental goal of the Landsat 7 program. Furthermore, a Presidential Decision Directive in 1994 placed the development and operation of the Landsat 7 program in the domain of three Federal agencies: NASA has the responsibility to build and launch the spacecraft and ...
Brian L. Markham +4 more
openaire +2 more sources
The landsat sensors: Eosat's plans for landsats 6 and 7
Acta Astronautica, 1987Abstract This paper describes the design configuration of the Enhanced Thematic Mapper (ETM) sensors that are presently under construction for Landsats 6 and 7. the paper begins with a brief introduction to EOSAT and a status report on the Landsats 4 and 5 operations followed by an overview description of the Thematic Mappers that are currently ...
openaire +2 more sources
IGARSS '96. 1996 International Geoscience and Remote Sensing Symposium, 2002
NASA's Mission to Planet Earth program has recently adopted the Landsat program as an explicit component of the Earth Observing System. This official recognition of the Landsat role has led NASA to consider steps to more fully integrated Landsat 7 and follow-on Landsat instruments into the operational strategy and technical design of the Earth ...
James R. Irons +2 more
openaire +2 more sources
NASA's Mission to Planet Earth program has recently adopted the Landsat program as an explicit component of the Earth Observing System. This official recognition of the Landsat role has led NASA to consider steps to more fully integrated Landsat 7 and follow-on Landsat instruments into the operational strategy and technical design of the Earth ...
James R. Irons +2 more
openaire +2 more sources
Computational Statistics & Data Analysis, 1995
Abstract The interpretation techniques, used in remote sensing applications, have exploited the wealth of information of the remotely sensed data. These techniques include methods of extracting information from spectral, temporal, and spatial domains of this data.
F. El Tohamy, M. Zaki, A. Hassan
openaire +2 more sources
Abstract The interpretation techniques, used in remote sensing applications, have exploited the wealth of information of the remotely sensed data. These techniques include methods of extracting information from spectral, temporal, and spatial domains of this data.
F. El Tohamy, M. Zaki, A. Hassan
openaire +2 more sources
1985
To this point the discussion has focused entirely on conventional aerial photo-interpretation techniques and for good reason — the bulk of remote sensing data used by land planners is acquired from conventional aerial photos. There is one other system whose products have proved to be of value, particularly when information is needed over large areas ...
openaire +2 more sources
To this point the discussion has focused entirely on conventional aerial photo-interpretation techniques and for good reason — the bulk of remote sensing data used by land planners is acquired from conventional aerial photos. There is one other system whose products have proved to be of value, particularly when information is needed over large areas ...
openaire +2 more sources
Free Access to Landsat Imagery
Science, 2008![Figure][1] Free image. This Landsat 5 image of the southeastern corner of the Black Sea is part of the general U.S. archive that will be accessible for free under the new USGS policy. CREDIT: BOSTON UNIVERSITY CENTER FOR REMOTE SENSING We are entering a new era in the Landsat Program, the oldest and most venerable of our Earth-observing satellite
Eileen H. Helmer +17 more
openaire +3 more sources
Landsat: A tool for development
World Development, 1982Abstract A major problem for many decision-makers is the lack of reliable information on which to base decisions. This is particularly true for the extent and location of as well as changes in such natural resources as forests, rangeland, agricultural fields and water bodies.
openaire +2 more sources