Kurtis J. Thome
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Beyond the Urban Heat Island: A Global Metric for Urban-Driven Climate Warming Open
Urbanization has accelerated globally, with the proportion of people living in cities increasing from 43% in 1990 to 56% today. This rapid urban growth profoundly affects Earth’s surface climate by altering land surface characteristics and…
View article: The Urban Archipelago Effect: A Case Study in Morocco
The Urban Archipelago Effect: A Case Study in Morocco Open
We model and describe the combined effect of a series of urban heat islands (UHIs), generated by nearby cities aligned as an archipelago, on the vertical diffusion of heat and the temperature structure in the lower atmosphere over an urban…
View article: The Characterization of the Railroad Valley Playa Test Site Using the DESIS Imaging Spectrometer from the Space Station Orbit
The Characterization of the Railroad Valley Playa Test Site Using the DESIS Imaging Spectrometer from the Space Station Orbit Open
The reflectance-based vicarious calibration approach uses measurements at well-understood test sites to provide top-of-atmosphere reference reflectance values suitable for inter-calibration approaches and does not require coincident views.…
View article: Landsat 9 Transfer to Orbit of Pre-Launch Absolute Calibration of Operational Land Imager (OLI)
Landsat 9 Transfer to Orbit of Pre-Launch Absolute Calibration of Operational Land Imager (OLI) Open
Landsat 9 Operational Land Imager (L9-OLI) was launched on 27 September 2021, after completing a successful radiometric pre-launch calibration and characterization phase. The radiometric math model that governs the ground system—the data p…
View article: Urban Sustainability Development in Morocco, a Review
Urban Sustainability Development in Morocco, a Review Open
During the last decades, Morocco has recorded substantial urbanization and faced challenges related to urban sprawl and encroachment on fertile lands. This paper reviews several studies assessing urban sustainability development in 27 Moro…
View article: The Ground-Based Absolute Radiometric Calibration of the Landsat 9 Operational Land Imager
The Ground-Based Absolute Radiometric Calibration of the Landsat 9 Operational Land Imager Open
This paper presents the initial vicarious radiometric calibration results for Landsat 9 OLI using a combination of ground-based techniques and test sites located in Nevada, California, and South Dakota, USA. The field data collection metho…
View article: Landsat 9 Thermal Infrared Sensor-2 (TIRS-2) Pre- and Post-Launch Spatial Response Performance
Landsat 9 Thermal Infrared Sensor-2 (TIRS-2) Pre- and Post-Launch Spatial Response Performance Open
The launch of Landsat 9 (L9) on 27 September 2021 marks the ongoing commitment of the Landsat mission to delivering users with calibrated Earth observations for fifty years. The two imaging sensors on L9 are the Thermal Infrared Sensor-2 (…
Land-Atmosphere interactions in urban areas Open
We model and evaluate the interactions between urban surface physical characteristics and components of the surface climate. We combine Landsat and MODIS data to characterize urban surfaces and describe the vegetation and its phenology in …
View article: Intercomparison of Landsat Operational Land Imager and Terra Advanced Spaceborne Thermal Emission and Reflection Radiometer Radiometric Calibrations Using Radiometric Calibration Network Data
Intercomparison of Landsat Operational Land Imager and Terra Advanced Spaceborne Thermal Emission and Reflection Radiometer Radiometric Calibrations Using Radiometric Calibration Network Data Open
This paper presents a comprehensive intercomparison study investigating the radiometric performance of and concurrence among the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER), Landsat 8 Operational Land Imager (L8 …
View article: Combining RadCalNet Sites for Radiometric Cross Calibration of Landsat 9 and Landsat 8 Operational Land Imagers (OLIs)
Combining RadCalNet Sites for Radiometric Cross Calibration of Landsat 9 and Landsat 8 Operational Land Imagers (OLIs) Open
Combining images from multiple Earth Observing (EO) satellites increases the temporal resolution of the data, overcoming the limitations imposed by low revisit time and cloud coverage. However, this requires an intercalibration process to …
View article: Intercomparison of Landsat OLI and JPSS VIIRS Using a Combination of RadCalNet Sites as a Common Reference
Intercomparison of Landsat OLI and JPSS VIIRS Using a Combination of RadCalNet Sites as a Common Reference Open
Independent radiometric data collected from multiple ground sites as part of vicarious calibration activities can be combined to harmonize the data products of Earth observation sensors with different temporal, spectral, and spatial resolu…
View article: Intercomparison of Landsat OLI and Terra ASTER solar reflective calibrations using the Radiometric Calibration Network data from Railroad Valley, Nevada
Intercomparison of Landsat OLI and Terra ASTER solar reflective calibrations using the Radiometric Calibration Network data from Railroad Valley, Nevada Open
This paper presents an intercomparison study between the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) and Landsat 8 Operational Land Imager (OLI) using data from the Radiometric Calibration Network (RadCalNet). Th…
View article: Band-Averaged Response Sensitivity Study of an Imaging Spectrometer for the CLARREO Pathfinder Mission
Band-Averaged Response Sensitivity Study of an Imaging Spectrometer for the CLARREO Pathfinder Mission Open
Prelaunch absolute, SI-traceable radiometric calibration of satellite-based sensors is key to ensuring the utility of imaging spectrometer-based data products. The development of detector-based calibration techniques leads to the feasibili…
View article: Absolute Radiometric Calibration of an Imaging Spectroradiometer Using a Laboratory Detector-Based Approach
Absolute Radiometric Calibration of an Imaging Spectroradiometer Using a Laboratory Detector-Based Approach Open
The HyperSpectral Imager for Climate Science (HySICS) is the core instrument of the Climate Absolute Refractivity and Reflectance Observatory (CLARREO) Pathfinder (CPF) mission and is currently scheduled to be launched to the International…
View article: Designing an Observing System to Study the Surface Biology and Geology of the Earth in the 2020s
Designing an Observing System to Study the Surface Biology and Geology of the Earth in the 2020s Open
Earth and Space Science Open Archive This preprint has been submitted to and is under consideration at Journal of Geophysical Research - Biogeosciences. ESSOAr is a venue for early communication or feedback before peer review. Data may be …
Cities Exacerbate Climate Warming Open
Urbanization is a complex land transformation not explicitly resolved within large-scale climate models. Long-term timeseries of high-resolution satellite data are essential to characterize urbanization within land surface models and to as…
NASA-ESA Cooperation on the SBG and CHIME Hyperspectral Satellite Missions: a roadmap for the joint Working Group on Cal/Val activities Open
Imaging spectroscopy has been identified by ESA, NASA and other international space agencies as key to addressing a number of most important scientific and environmental management objectives. To implement the critical EU- and related poli…
View article: ECCOE Landsat quarterly Calibration and Validation report — Quarter 2, 2021
ECCOE Landsat quarterly Calibration and Validation report — Quarter 2, 2021 Open
First posted December 27, 2021 For additional information, contact: Director, Earth Resources Observation and Science Center U.S. Geological Survey47914 252nd Street Sioux Falls, SD 57198Contact Pubs Warehouse The U.S. Geological Survey (U…
View article: The Shortwave Spectral Radiometer for Atmospheric Science: Capabilities and Applications from the ARM User Facility
The Shortwave Spectral Radiometer for Atmospheric Science: Capabilities and Applications from the ARM User Facility Open
Industry advances have greatly reduced the cost and size of ground-based shortwave (SW) sensors for the ultraviolet, visible, and near-infrared spectral ranges that make up the solar spectrum, while simultaneously increasing their ruggedne…
View article: Radiometric Degradation Curves for the ASTER VNIR Processing Using Vicarious and Lunar Calibrations
Radiometric Degradation Curves for the ASTER VNIR Processing Using Vicarious and Lunar Calibrations Open
The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) onboard Terra platform, which was launched in 1999, has three separate subsystems: a visible and near-infrared (VNIR) radiometer, a shortwave-infrared radiometer, a…
View article: RadCalNet: A Radiometric Calibration Network for Earth Observing Imagers Operating in the Visible to Shortwave Infrared Spectral Range
RadCalNet: A Radiometric Calibration Network for Earth Observing Imagers Operating in the Visible to Shortwave Infrared Spectral Range Open
Vicarious calibration approaches using in situ measurements saw first use in the early 1980s and have since improved to keep pace with the evolution of the radiometric requirements of the sensors that are being calibrated. The advantage of…
NASA Report on Cal/Val Activities Open
NASA report on Calibration/Validation activities, including recent launches of ICESat-2, GEDI and OCO-3.\n\n\n
A Method for Mapping Future Urbanization in the United States Open
Cities are poised to absorb additional people. Their sustainability, or ability to accommodate a population increase without depleting resources or compromising future growth, depends on whether they harness the efficiency gains from urban…
View article: Ultra-portable field transfer radiometer for vicarious calibration of earth imaging sensors
Ultra-portable field transfer radiometer for vicarious calibration of earth imaging sensors Open
A small portable transfer radiometer has been developed as part of an effort to ensure the quality of upwelling radiance from test sites used for vicarious calibration in the solar reflective. The test sites are used to predict top-of-atmo…
View article: Calibration and use of an ultra-portable field transfer radiometer for automated vicarious calibration
Calibration and use of an ultra-portable field transfer radiometer for automated vicarious calibration Open
A small portable transfer radiometer has been developed as part of an effort to ensure the quality of upwelling radiance at automated test sites used for vicarious calibration in the solar reflective. The test sites, such as the one locate…
Establishing BRDF calibration capabilities through shortwave infrared Open
Satellite instruments operating in the reflective solar wavelength region require accurate and precise determination of the Bidirectional Reflectance Distribution Functions (BRDFs) of the laboratory and flight diffusers used in their pre-f…
Cross-Calibration between ASTER and MODIS Visible to Near-Infrared Bands for Improvement of ASTER Radiometric Calibration Open
Radiometric cross-calibration between the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) and the Terra-Moderate Resolution Imaging Spectroradiometer (MODIS) has been partially used to derive the ASTER radiometric ca…
View article: Climate Absolute Radiance and Refractivity Observatory (CLARREO) Pathfinder Mission: Status Overview
Climate Absolute Radiance and Refractivity Observatory (CLARREO) Pathfinder Mission: Status Overview Open
The Climate Absolute Radiance and Refractivity Observatory (CLARREO) is a Tier 1 mission recommended by the NRC Decadal Survey 2007. The foundation of CLARREO is the ability to produce highly accurate climate records to test climate projec…