Publications
Filter Total Items: 158
Bundle adjustment using space based triangulation method for improving the Landsat global ground reference
There is an ever-increasing interest and need for accurate geo-registration of remotely sensed data products to a common global geometric reference. Although the geo-registration has improved significantly in the last decade, the lack of an accurate global ground reference dataset
poses serious issues for data providers seeking to make geometrically stackable analysis ready data. The existing Glob
Authors
James C. Storey, R. Rengarajan, Michael J. Choate
2019 Joint Agency Commercial Imagery Evaluation—Land remote sensing satellite compendium
The Joint Agency Commercial Imagery Evaluation (JACIE) is a collaboration between five Federal agencies that are major users and producers of satellite land remote sensing data. In recent years, the JACIE group has observed ever-increasing numbers of remote sensing satellites being launched. This rapidly growing wave of new systems creates a need for a single reference for land remote sensing sate
Authors
Jon Christopherson, Shankar N. Ramaseri Chandra, Joel Q. Quanbeck
Airborne waveform lidar simulator using the radiative transfer of a laser pulse
An airborne lidar simulator creates a lidar point cloud from a simulated lidar system, flight parameters, and the terrain digital elevation model (DEM). At the basic level, the lidar simulator computes the range from a lidar system to the surface of a terrain using the geomatics lidar equation. The simple computation effectively assumes that the beam divergence is zero. If the beam spot is meaning
Authors
Minsu Kim
User needs for future Landsat missions
Landsat satellites have been operating since 1972, providing the longest continuous observation record of the Earth’s land surface. Over the past half century, the Landsat user community has grown exponentially, encompassing more diverse and evolving scientific research and operational uses. Understanding current and future user needs is crucial to informing the design of Landsat missions beyond L
Authors
Zhuoting Wu, Gregory Snyder, Carolyn M. Vadnais, Rohit Arora, Michael Babcock, Gregory L. Stensaas, Peter Doucette, Timothy Newman
Radiometric characterization of Landsat Collection 1 products
Landsat data in the U.S. Geological Survey (USGS) archive are being reprocessed to generate a tiered collection of consistently geolocated and radiometrically calibrated products that are suitable for time series analyses. With the implementation of the collection management, no major updates will be made to calibration of the Landsat sensors within a collection. Only calibration parameters needed
Authors
Esad Micijevic, Md Obaidul Haque, Nischal Mishra
Landsat-8 TIRS thermal radiometric calibration status
The Thermal Infrared Sensor (TIRS) instrument is the thermal-band imager on the Landsat-8 platform. The initial onorbit calibration estimates of the two TIRS spectral bands indicated large average radiometric calibration errors, -0.29 and -0.51 W/m2 sr μm or -2.1K and -4.4K at 300K in Bands 10 and 11, respectively, as well as high variability in the errors, 0.87K and 1.67K (1-σ), respectively. The
Authors
Julia A. Barsi, Brian L. Markham, Matthew Montanaro, Aaron Gerace, Simon Hook, John R. Schott, Nina G. Raqueno, Ron Morfitt
Statistical relative gain calculation for Landsat 8
The Landsat 8 Operational Land Imager (OLI) is an optical multispectral push-broom sensor with a focal plane consisting of over 7000 detectors per spectral band. Each of the individual imaging detectors contributes one column of pixels to an image. Any difference in the response between neighboring detectors may result in a visible stripe or band in the imagery. An accurate estimate of each detect
Authors
Cody Anderson, Dennis Helder, Drake Jeno (CTR)
Landsat-7 ETM+ radiometric calibration status
Now in its 17th year of operation, the Enhanced Thematic Mapper + (ETM+), on board the Landsat-7 satellite, continues to systematically acquire imagery of the Earth to add to the 40+ year archive of Landsat data. Characterization of the ETM+ on-orbit radiometric performance has been on-going since its launch in 1999. The radiometric calibration of the reflective bands is still monitored using on-b
Authors
Julia A. Barsi, Brian L. Markham, J. S. Czapla-Myers, Dennis L. Helder, Simon Hook, John R. Schott, Md Obaidul Haque
Radiometric calibration updates to the Landsat collection
The Landsat Project is planning to implement a new collection management strategy for Landsat products generated at the U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center. The goal of the initiative is to identify a collection of consistently geolocated and radiometrically calibrated images across the entire Landsat archive that is readily suitable for time-series
Authors
Esad Micijevic, Md Obaidul Haque, Nischal Mishra
A note on the temporary misregistration of Landsat-8 Operational Land Imager (OLI) and Sentinel-2 Multi Spectral Instrument (MSI) imagery
The Landsat-8 and Sentinel-2 sensors provide multi-spectral image data with similar spectral and spatial characteristics that together provide improved temporal coverage globally. Both systems are designed to register Level 1 products to a reference image framework, however, the Landsat-8 framework, based upon the Global Land Survey images, contains residual geolocation errors leading to an expect
Authors
James C. Storey, David P. Roy, Jeffrey Masek, Ferran Gascon, John L. Dwyer, Michael J. Choate
Landsat-8: Status and on-orbit performance
Landsat 8 and its two Earth imaging sensors, the Operational Land Imager (OLI) and Thermal Infrared Sensor (TIRS) have been operating on-orbit for 2 ½ years. Landsat 8 has been acquiring substantially more images than initially planned, typically around 700 scenes per day versus a 400 scenes per day requirement, acquiring nearly all land scenes. Both the TIRS and OLI instruments are exceeding thei
Authors
Brian L. Markham, Julia A. Barsi, Ron Morfitt, Michael J. Choate, Matthew Montanaro, Terry Arvidson, James R. Irons
Landsat-8 Operational Land Imager (OLI) radiometric performance on-orbit
Expectations of the Operational Land Imager (OLI) radiometric performance onboard Landsat-8 have been met or exceeded. The calibration activities that occurred prior to launch provided calibration parameters that enabled ground processing to produce imagery that met most requirements when data were transmitted to the ground. Since launch, calibration updates have improved the image quality even mo
Authors
Ron Morfitt, Julia A. Barsi, Raviv Levy, Brian L. Markham, Esad Micijevic, Lawrence Ong, Pat Scaramuzza, Kelly Vanderwerff