First flights of a new airborne thermal infrared imaging spectrometer with high area coverage

Hall, Jeffrey L.; Boucher, Richard H.; Gutierrez, David J.; Hansel, S.J.; Kasper, Brian P.; Keim, E. R.; Moreno, Nery M.; Polak, Mark L.; Sivjee, Mazaher G.; Tratt, David M.; Warren, David W.

doi:10.1117/12.884865

Cited by 27 publications

(10 citation statements)

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“…Hyperspectral airborne imagery was collected on 27 August 2013 (at 11:00 a.m. Pacific daylight savings time) using Mako, a whiskbroom-type sensor developed by The Aerospace Corporation. Mako measures emitted surface radiance in 128 contiguous TIR channels covering the wavelength range 7.6-13.4 µm [82,83]. The Mako sensor was radiometrically and spectrally calibrated as described in [29,83].…”

Section: Hyperspectral Data Collectionmentioning

confidence: 99%

“…The minimum noise fraction (MNF) components that were used for the unsupervised classification are displayed in false color assignments ( Figure 6) to highlight the lithologic compositional variability across the complete image swath. [82,83]). User-specified parameters are indicated by how they are entered into ENVI dialogue boxes for each of the image processing steps.…”

Section: Supervised and Unsupervised Classifications Of The Airborne mentioning

confidence: 99%

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The Lavic Lake Fault: A Long-Term Cumulative Slip Analysis via Combined Field Work and Thermal Infrared Hyperspectral Airborne Remote Sensing

et al. 2020

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The 1999 Hector Mine earthquake ruptured to the surface in eastern California, with >5 m peak right-lateral slip on the Lavic Lake fault. The cumulative offset and geologic slip rate of this fault are not well defined, which inhibits tectonic reconstructions and risk assessment of the Eastern California Shear Zone (ECSZ). With thermal infrared hyperspectral airborne imagery, field data, and auxiliary information from legacy geologic maps, we created lithologic maps of the area using supervised and unsupervised classifications of the remote sensing imagery. We optimized a data processing sequence for supervised classifications, resulting in lithologic maps over a test area with an overall accuracy of 71 ± 1% with respect to ground-truth geologic mapping. Using all of the data and maps, we identified offset bedrock features that yield piercing points along the main Lavic Lake fault and indicate a 1036 +27/−26 m net slip, with 1008 +14/−17 m horizontal and 241 +51/−47 m vertical components. For the contribution from distributed shear, modern off-fault deformation values from another study imply a larger horizontal slip component of 1276 +18/−22 m. Within the constraints, we estimate a geologic slip rate of <4 mm/yr, which does not increase the sum geologic Mojave ECSZ rate to current geodetic values. Our result supports previous suggestions that transient tectonic activity in this area may be responsible for the discrepancy between long-term geologic and present-day geodetic rates.

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Section: Hyperspectral Data Collectionmentioning

confidence: 99%

Section: Supervised and Unsupervised Classifications Of The Airborne mentioning

confidence: 99%

The Lavic Lake Fault: A Long-Term Cumulative Slip Analysis via Combined Field Work and Thermal Infrared Hyperspectral Airborne Remote Sensing

et al. 2020

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“…These supporting data were collected on 24 September 2013 by the Mako [37,38] sensor and provided by the Aerospace Corporation (El Segundo, CA, USA). Mako is an airborne hyperspectral imaging system with 128 spectral bands from 7.6 to 13.15 µm.…”

Section: Data Setsmentioning

confidence: 99%

Enhanced Compositional Mapping through Integrated Full-Range Spectral Analysis

McDowell

Kruse

2016

Remote Sensing

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Abstract:We developed a method to enhance compositional mapping from spectral remote sensing through the integration of visible to near infrared (VNIR,~0.4-1 µm), shortwave infrared (SWIR,~1-2.5 µm), and longwave infrared (LWIR,~8-13 µm) data. Spectral information from the individual ranges was first analyzed independently and then the resulting compositional information in the form of image endmembers and apparent abundances was integrated using ISODATA cluster analysis. Independent VNIR, SWIR, and LWIR analyses of a study area near Mountain Pass, California identified image endmembers representing vegetation, manmade materials (e.g., metal, plastic), specific minerals (e.g., calcite, dolomite, hematite, muscovite, gypsum), and general lithology (e.g., sulfate-bearing, carbonate-bearing, and silica-rich units). Integration of these endmembers and their abundances produced a final full-range classification map incorporating much of the variation from all three spectral ranges. The integrated map and its 54 classes provide additional compositional information that is not evident in the VNIR, SWIR, or LWIR data alone, which allows for more complete and accurate compositional mapping. A supplemental examination of hyperspectral LWIR data and comparison with the multispectral LWIR data used in the integration illustrates its potential to further improve this approach.

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“…Recent advances (see section S1 in the online supplement) in airborne TIR-HSI sensor capabilities [Hall et al, 2011;Johnson et al, 2009] promise to expand significantly this underutilized spectral region for many common trace gases (see Figure S1 in the online supplement) under wider conditions than SWIR, including nighttime and cloudy skies. Recent advances (see section S1 in the online supplement) in airborne TIR-HSI sensor capabilities [Hall et al, 2011;Johnson et al, 2009] promise to expand significantly this underutilized spectral region for many common trace gases (see Figure S1 in the online supplement) under wider conditions than SWIR, including nighttime and cloudy skies.…”

Section: Abstract Submission Deadlinementioning

confidence: 99%

World Ocean Assessment experts needed

Showstack

2012

EoS Transactions

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The United Nations (UN) is inviting interested scientists to apply to be members of an international pool of 1000–2000 experts who will be authors and reviewers of its first World Ocean Assessment (WOA) report, slated for completion in 2014. The UN anticipates that subsequent WOA reports will be generated on a 5‐year cycle. The first report will include more than 50 subjects grouped within four main themes: marine environment and understanding of the ocean's role in the global integrated Earth system, food security and safety, human activities that influence the ocean or are influenced by the ocean, and marine biological diversity. A scientific and technical summary is also planned.

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First flights of a new airborne thermal infrared imaging spectrometer with high area coverage

Cited by 27 publications

References 0 publications

The Lavic Lake Fault: A Long-Term Cumulative Slip Analysis via Combined Field Work and Thermal Infrared Hyperspectral Airborne Remote Sensing

The Lavic Lake Fault: A Long-Term Cumulative Slip Analysis via Combined Field Work and Thermal Infrared Hyperspectral Airborne Remote Sensing

Enhanced Compositional Mapping through Integrated Full-Range Spectral Analysis

World Ocean Assessment experts needed

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