Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- Calibration (5)
- SOFIE (4)
- Fourier transform spectrometer (FTS) (3)
- Infrared (3)
- Remote sensing (3)
-
- Solar (3)
- AIM (2)
- Aerosols (2)
- Climate (2)
- Fabrication (2)
- Geosynchronous (2)
- Hyperspectral (2)
- Integration (2)
- Lidar (2)
- Michelson interferometer (2)
- SABER (2)
- TIMED (2)
- Test (2)
- Validation (2)
- AGLITE (1)
- Air quality (1)
- Animal Feeding Operations (1)
- Arrayed Field Measurements (1)
- Atmospheric (1)
- Calibration Reference Sources (1)
- Confined Animal Feeding (1)
- Deep Pit Swine (1)
- Deep-Pit Swine Operation (1)
- Determination (1)
- Error budget (1)
Articles 1 - 19 of 19
Full-Text Articles in Entire DC Network
Sofie Instrument Model And Performance Comparison, Scott Hansen, Andrew Shumway, Chad Fish, Jim Peterson, Peter Mace, James Cook, Joel Nelsen, Dale Hooper, Quinn Young, Steve Wassom, John Kemp, Larry Gordley, Mark Hervig
Sofie Instrument Model And Performance Comparison, Scott Hansen, Andrew Shumway, Chad Fish, Jim Peterson, Peter Mace, James Cook, Joel Nelsen, Dale Hooper, Quinn Young, Steve Wassom, John Kemp, Larry Gordley, Mark Hervig
Space Dynamics Laboratory Publications
Space Dynamics Laboratory (SDL), in partnership with GATS, Inc., designed, built, and calibrated an instrument to conduct the Solar Occultation for Ice Experiment (SOFIE). SOFIE is the primary infrared sensor in the NASA Aeronomy of Ice in the Mesosphere (AIM) instrument suite. AIM's mission is to study polar mesospheric clouds (PMCs). SOFIE will make measurements in 16 separate spectral bands, arranged in 8 pairs between 0.29 and 5.3 μm. Each band pair will provide differential absorption limb-path transmission profiles for an atmospheric component of interest, by observing the sun through the limb of the atmosphere during solar occultation as AIM …
An Integrated Approach To Measuring Emissions From Confined Animal Feeding Operations At The Whole Facility Scale, G. E. Bingham, J. Hatfiels, J. H. Prueger, T. D. Wilkerson, V. V. Zavyalov, R. L. Pfeiffer, L. Hipps, R. Martin, P. Silva, W. Eichinger
An Integrated Approach To Measuring Emissions From Confined Animal Feeding Operations At The Whole Facility Scale, G. E. Bingham, J. Hatfiels, J. H. Prueger, T. D. Wilkerson, V. V. Zavyalov, R. L. Pfeiffer, L. Hipps, R. Martin, P. Silva, W. Eichinger
Space Dynamics Laboratory Publications
Agricultural operations produce a variety of particulates and gases that influence air quality. Agriculture, through wind erosion, tillage and harvest operations, burning, diesel-powered machinery and animal production operations, is a source of particulate matter that can enter human lungs and cause pulmonary problems. Animal production operations can be a source of gaseous emissions such as ammonia, odor-causing volatile organic compounds, hydrogen sulfide, greenhouse gases (methane, nitrous oxides) and airborne pathogens. These emissions can negatively impact human health, property values, and the environment. The presence of buildings and other structures often make whole facility measurement capability a requirement for understanding the …
Integrating Lidar And Atmospheric Boundary Layer Measurements To Determine Fluxes And Dynamics Of Particulate Emissions From An Agriculture Facility, Lawrence Hipps, John H. Prueger, Jerry Hatfield, Gail E. Bingham, W. Eichinger, Thomas D. Wilkerson, Vladimir V. Zavyalov, Randy Martin, Phil Silva
Integrating Lidar And Atmospheric Boundary Layer Measurements To Determine Fluxes And Dynamics Of Particulate Emissions From An Agriculture Facility, Lawrence Hipps, John H. Prueger, Jerry Hatfield, Gail E. Bingham, W. Eichinger, Thomas D. Wilkerson, Vladimir V. Zavyalov, Randy Martin, Phil Silva
Space Dynamics Laboratory Publications
Lidar technology offers the ability to quantify concentrations of small particulates in the atmosphere in certain ranges of time and space. While this is a valuable tool to visualize the behavior of plumes emitted from the surface, the actual flux of particles cannot be estimated from such data alone. To determine the mass flux of particles, the concentrations must be properly integrated with wind and turbulence properties. The goal of this study is to utilize a model that uses wind and particle density information to calculate the flux of particles from an animal facility near Ames, Iowa. The model is …
Variations In Particle Composition And Size Distributions In And Around A Deep Pit Swine Operation, Philip Silva, Randal S. Martin, Vishal Doshi, Kori Moore, Mark Erupe
Variations In Particle Composition And Size Distributions In And Around A Deep Pit Swine Operation, Philip Silva, Randal S. Martin, Vishal Doshi, Kori Moore, Mark Erupe
Space Dynamics Laboratory Publications
Agricultural facilities are the source of many types of particles and gases that can exhibit an influence on air quality. Emissions potentially impacting air quality from agricultural sources have become a concern for regulatory agencies such as the United States Department of Agriculture (USDA) and the Environmental Protection Agency (EPA). Particle mass concentration influences from agricultural sources can include both primary particles (direct emissions such as dust) and secondary particles (formed from gaseous precursors such as ammonia).
Characterization Of Particulate Emission From Animal Feeding Operations With Three-Wavelength Lidar Using Simultaneous In-Situ Point Measurements As Calibration Reference Sources, Vladimir V. Zavyalov, Gail E. Bingham, Thomas D. Wilkerson, Jason Swasey, Christian Marchant, Christopher Rogers, Randy Martin, Phil Silva, Vishal Doshi
Characterization Of Particulate Emission From Animal Feeding Operations With Three-Wavelength Lidar Using Simultaneous In-Situ Point Measurements As Calibration Reference Sources, Vladimir V. Zavyalov, Gail E. Bingham, Thomas D. Wilkerson, Jason Swasey, Christian Marchant, Christopher Rogers, Randy Martin, Phil Silva, Vishal Doshi
Space Dynamics Laboratory Publications
Lidar (LIght Detection And Ranging) provides the means to quantitatively evaluate the spatial and temporal variability of particulate emissions from agricultural activities, including animal feeding operations. A three-wavelength portable scanning Lidar system built at the Space Dynamic Laboratory (SDL) is used to extract optical properties of the particulate matter from the return Lidar signal and to convert these optical properties to physical parameters including the spatial distribution of particulate concentration around the agricultural facility and its temporal variations. The inversion algorithm developed to retrieve physical parameters of the particulate matter takes advantage of measurements taken simultaneously at three different wavelengths …
Determination Of Particle (Pm10 And Pm2.5) And Gas-Phase Ammonia (Nh3) Emissions From A Deep-Pit Swine Operation Using Arrayed Field Measurements And Inverse Gaussian Plume Modeling, Randal S. Martin, Vishal Doshi, Kori Moore
Determination Of Particle (Pm10 And Pm2.5) And Gas-Phase Ammonia (Nh3) Emissions From A Deep-Pit Swine Operation Using Arrayed Field Measurements And Inverse Gaussian Plume Modeling, Randal S. Martin, Vishal Doshi, Kori Moore
Space Dynamics Laboratory Publications
The contribution of agricultural emissions of primary (direct) and secondary (precursor) pollutants to air quality is rapidly being recognized as an important fraction of local and regional air pollution budgets. However, a significant uncertainty still exists in the magnitude and rate of these types of emissions, especially under “in field” conditions common within the central and western United States. Described herein are the results of a study conducted at a deep-pit swine production facility in central Iowa. The facility consisted of three separate, parallel barns, each housing around 1,250 pigs with an average weight of approximately 90 pounds per animal. …
Aglite: A Multiwavelength Lidar For Aerosols, T. D. Wilkerson, G. E. Bingham, V. V. Zavyalov, J. Swasey, J. J. Hancock, B. G. Crowther, S. S. Cornelsen, C. Marchant, J. N. Cuttis, D. C. Huish, C. L. Earl, J. M. Andersen, M. L. Cox
Aglite: A Multiwavelength Lidar For Aerosols, T. D. Wilkerson, G. E. Bingham, V. V. Zavyalov, J. Swasey, J. J. Hancock, B. G. Crowther, S. S. Cornelsen, C. Marchant, J. N. Cuttis, D. C. Huish, C. L. Earl, J. M. Andersen, M. L. Cox
Space Dynamics Laboratory Publications
Agricultural operations produce a variety of particulates and gases that influence air quality. Agriculture, through wind erosion, tillage and harvest operations, burning, diesel-powered machinery and animal production operations, is a source of particulate matter that can enter human lungs and cause pulmonary problems. These emissions can negatively impact human health, property values, and the environment. The presence of buildings and other structures often make whole facility measurement capability a requirement for understanding the source strength and characteristics. The ability to use standoff methods to determine the movement and concentrations of emissions on a whole facility basis opens new capabilities for …
Ray-Tracing Polymorphic Multidomain Spectral/Hp Elements For Isosurface Rendering, Blake Nelson, Robert M. Kirby
Ray-Tracing Polymorphic Multidomain Spectral/Hp Elements For Isosurface Rendering, Blake Nelson, Robert M. Kirby
Space Dynamics Laboratory Publications
The purpose of this paper is to present a ray-tracing isosurface rendering algorithm for spectral/hp (high-order finite) element methods in which the visualization error is both quantified and minimized. Determination of the ray-isosurface intersection is accomplished by classic polynomial root-finding applied to a polynomial approximation obtained by projecting the finite element solution over element-partitioned segments along the ray. Combining the smoothness properties of spectral/hp elements with classic orthogonal polynomial approximation theory, we devise an adaptive scheme which allows the polynomial approximation along a raysegment to be arbitrarily close to the true solution. The resulting images converge toward a pixel-exact image …
Modeled Vs. Actual Performance Of The Geosynchronous Imaging Fourier Transform Spectrometer (Gifts), Gregory W. Cantwell, John D. Elwell, Roy W. Esplin, Mark P. Esplin, Deron K. Scott, Lorin J. Zollinger, Gail E. Bingham, Henry E. Revercomb, William L. Smith, Robert A. Reisse
Modeled Vs. Actual Performance Of The Geosynchronous Imaging Fourier Transform Spectrometer (Gifts), Gregory W. Cantwell, John D. Elwell, Roy W. Esplin, Mark P. Esplin, Deron K. Scott, Lorin J. Zollinger, Gail E. Bingham, Henry E. Revercomb, William L. Smith, Robert A. Reisse
Space Dynamics Laboratory Publications
The NASA Geosynchronous Imaging Fourier Transform Spectrometer (GIFTS) has been completed as an Engineering Demonstration Unit (EDU) and has recently finished thermal vacuum testing and calibration. The GIFTS EDU was designed to demonstrate new and emerging sensor and data processing technologies with the goal of making revolutionary improvements in meteorological observational capability and forecasting accuracy. The GIFTS EDU includes a cooled (150 K), imaging FTS designed to provide the radiometric accuracy and atmospheric sounding precision required to meet the next generation GOES sounder requirements. This paper discusses a GIFTS sensor response model and its validation during thermal vacuum testing and …
Far-Infrared Spectroscopy Of The Troposphere (First): Flight Performance And Data Processing, S. Wellard, G. Bingham, H. Latvokoski, M. Mlynczak, D. Johnson, K. Jucks
Far-Infrared Spectroscopy Of The Troposphere (First): Flight Performance And Data Processing, S. Wellard, G. Bingham, H. Latvokoski, M. Mlynczak, D. Johnson, K. Jucks
Space Dynamics Laboratory Publications
The radiative balance of the troposphere, and hence global climate, is dominated by the infrared absorption and emission of water vapor, particularly at far-infrared (far-IR) wavelengths from 15-50 μm. Current and planned satellites observe the infrared region to about 15.4 μm, ignoring spectral measurement of the far-IR region from 15 to 100μm. The far-infrared spectroscopy of the troposphere (FIRST) project, flown in June 2005, provided a balloon-based demonstration of the two key technologies required for a space-based far-IR spectral sensor. We discuss the FIRST Fourier transform spectrometer system (0.6 cm-1 unapodized resolution), its radiometric calibration in the spectral range from …
Retrieval Of Physical Properties Of Particulate Emission From Animal Feeding Operations Using Three-Wavelength Elastic Lidar Measurements, Vladimir V. Zavyalov, Christian Marchant, Gail E. Bingham, Thomas D. Wilkerson, Jason Swasey, Christopher Rogers, Douglas Ahlstrom, Paul Timothy
Retrieval Of Physical Properties Of Particulate Emission From Animal Feeding Operations Using Three-Wavelength Elastic Lidar Measurements, Vladimir V. Zavyalov, Christian Marchant, Gail E. Bingham, Thomas D. Wilkerson, Jason Swasey, Christopher Rogers, Douglas Ahlstrom, Paul Timothy
Space Dynamics Laboratory Publications
Agricultural operations produce a variety of particulates and gases that influence ambient air quality. Lidar (LIght Detection And Ranging) technology provides a means to derive quantitative information of particulate spatial distribution and optical/physical properties over remote distances. A three-wavelength scanning lidar system built at the Space Dynamic Laboratory (SDL) is used to extract optical parameters of particulate matter and to convert these optical properties to physical parameters of particles. This particulate emission includes background aerosols, emissions from the agricultural feeding operations, and fugitive dust from the road. Aerosol optical parameters are retrieved using the widely accepted solution proposed by Klett. …
A Geosynchronous Imaging Fourier Transform Spectrometer (Gifts) For Hyperspectral Atmospheric Remote Sensing: Instrument Overview & Preliminary Performance Results, J. D. Elwell, G. W. Cantwell, D. K. Schott, R. W. Esplin, G. B. Hansen, S. M. Jensen, M. D. Jensen, S. B. Brown, L. J. Zollinger, V. A. Thurgood, M. P. Esplin, R. J. Huppi, G. E. Bingham, H. E. Revercomb, F. A. Best, D. C. Tobin, J. K. Taylor, R. O. Knuteson, W. L. Smith, R. A. Reisse, R. Hooker
A Geosynchronous Imaging Fourier Transform Spectrometer (Gifts) For Hyperspectral Atmospheric Remote Sensing: Instrument Overview & Preliminary Performance Results, J. D. Elwell, G. W. Cantwell, D. K. Schott, R. W. Esplin, G. B. Hansen, S. M. Jensen, M. D. Jensen, S. B. Brown, L. J. Zollinger, V. A. Thurgood, M. P. Esplin, R. J. Huppi, G. E. Bingham, H. E. Revercomb, F. A. Best, D. C. Tobin, J. K. Taylor, R. O. Knuteson, W. L. Smith, R. A. Reisse, R. Hooker
Space Dynamics Laboratory Publications
The Geosynchronous Imaging Fourier Transform Spectrometer (GIFTS) was developed for the NASA New Millennium Program (NMP) Earth Observing-3 (EO-3) mission. This paper discusses the GIFTS measurement requirements and the technology utilized by the GIFTS sensor to provide the required system performance. Also presented are preliminary results from the recently completed calibration of the instrument. The GIFTS NMP mission challenge was to demonstrate new and emerging sensor and data processing technologies to make revolutionary improvements in meteorological observational capability and forecasting accuracy using atmospheric imaging and hyperspectral sounding methods. The GIFTS sensor is an imaging FTS with programmable spectral resolution and …
Geosynchronous Imaging Fourier Transform Spectrometer (Gifts) Engineering Demonstation Unit (Edu) Overview And Performance Summary, Gail E. Bingham, R. E. Anderson, G. W. Cantwell, D. K. Zhou, D. K. Scott, R. W. Esplin, G. B. Hansen, S. M. Jensen, M. D. Jensen, S. B. Brown, L. J. Zollinger, V. A. Thurgood, M. P. Esplin, R. J. Huppi, H. E. Revercomb, F. A. Best, D. C. Tobin, J. K. Taylor, R. O. Knuteson, W. L. Smith, R. A. Reisse, R. Hooker
Geosynchronous Imaging Fourier Transform Spectrometer (Gifts) Engineering Demonstation Unit (Edu) Overview And Performance Summary, Gail E. Bingham, R. E. Anderson, G. W. Cantwell, D. K. Zhou, D. K. Scott, R. W. Esplin, G. B. Hansen, S. M. Jensen, M. D. Jensen, S. B. Brown, L. J. Zollinger, V. A. Thurgood, M. P. Esplin, R. J. Huppi, H. E. Revercomb, F. A. Best, D. C. Tobin, J. K. Taylor, R. O. Knuteson, W. L. Smith, R. A. Reisse, R. Hooker
Space Dynamics Laboratory Publications
The Geosynchronous Imaging Fourier Transform Spectrometer (GIFTS), developed for the NASA New Millennium Program (NMP) Earth Observing-3 (EO-3) mission, has recently completed a series of uplooking atmospheric measurements. The GIFTS development demonstrates a series of new sensor and data processing technologies that can significantly expand geostationary meteorological observational capability. The resulting increase in forecasting accuracy and atmospheric model development utilizing this hyperspectral data is demonstrated by the uplooking data. The GIFTS sensor is an imaging FTS with programmable spectral resolution and spatial scene selection, allowing spectral resolution and area coverage to be traded in near-real time. Due to funding limitations, …
Sounding Of The Atmosphere Using Broadband Emission Radiometry (Saber): Sensor Design, Performance, And Lessons Learned, Steven B. Brown, Mark Jensen, Scott Jensen, Glen Hansen, Lorin Zollinger, Roy Esplin, James B. Miller
Sounding Of The Atmosphere Using Broadband Emission Radiometry (Saber): Sensor Design, Performance, And Lessons Learned, Steven B. Brown, Mark Jensen, Scott Jensen, Glen Hansen, Lorin Zollinger, Roy Esplin, James B. Miller
Space Dynamics Laboratory Publications
The Sounding of the Atmosphere using Broadband Emission Radiometry (SABER) instrument, a 10-channel infrared (1.27 - 16.9 μm) radiometer, was launched on the TIMED (Thermosphere, Ionosphere, Mesosphere Energetics and Dynamics) satellite in December 2001 from Vandenburg Air Force Base. SABER is being used to measure earthlimb emissions and to characterize infrared radiation, allowing calculation of cooling rates and determination of composition and temperature profiles in the mesosphere, lower thermosphere, and ionosphere (60-180 km). The SABER telescope is an on-axis Cassegrain design with a picket-fence tuning fork chopper at the first focus and a clamshell re-imager to focus the image on …
Sofie Instrument Model And Performance Comparison, Scott Hansen, Andrew Shumway, Chad Fish, Jim Peterson, Peter Mace, James Cook, Joil Nelsen, Dale Hooper, Quinn Young, Steve Wassom, John Kemp, Larry Gordley, Mark Hervig
Sofie Instrument Model And Performance Comparison, Scott Hansen, Andrew Shumway, Chad Fish, Jim Peterson, Peter Mace, James Cook, Joil Nelsen, Dale Hooper, Quinn Young, Steve Wassom, John Kemp, Larry Gordley, Mark Hervig
Space Dynamics Laboratory Publications
Space Dynamics Laboratory (SDL), in partnership with GATS, Inc., designed, built, and calibrated an instrument to conduct the Solar Occultation for Ice Experiment (SOFIE). SOFIE is the primary infrared sensor in the NASA Aeronomy of Ice in the Mesosphere (AIM) instrument suite. AIM’s mission is to study polar mesospheric clouds (PMCs). SOFIE will make measurements in 16 separate spectral bands, arranged in 8 pairs between 0.29 and 5.3 μm. Each band pair will provide differential absorption limb-path transmission profiles for an atmospheric component of interest, by observing the sun through the limb of the atmosphere during solar occultation as AIM …
Validation Assessment Model For Atmospheric Retrievals, Nikita Pougatchev, Gail Bingham, Joel Cardon, Karen St. Germain, Stephen Mango, Joe Tansock, Vladimir Zavyalov, Stanislav Kireev, David Tobin
Validation Assessment Model For Atmospheric Retrievals, Nikita Pougatchev, Gail Bingham, Joel Cardon, Karen St. Germain, Stephen Mango, Joe Tansock, Vladimir Zavyalov, Stanislav Kireev, David Tobin
Space Dynamics Laboratory Publications
A linear mathematical error model for the assessment of validation activity of atmospheric retrievals is presented. The purpose of the validation activity is to assess the actual performance of the remote sensing validated system while in orbit by comparing its measurements to some relevant—validating—data sets. The validating system samples volumes of the atmosphere at times and locations that are different from the ones when and where the validated system makes its own observations. The location of the validating system can be either stationary, e.g. a ground ARM site, or movable, e.g. an aircraft or some other satellites. The true states …
Sofie Instrument Overview, Andrew Shumway, Chad Fish, Jim Peterson, Peter Mace, James Cook
Sofie Instrument Overview, Andrew Shumway, Chad Fish, Jim Peterson, Peter Mace, James Cook
Space Dynamics Laboratory Publications
Space Dynamics Laboratory (SDL) recently designed, built, and delivered the Solar Occultation for Ice Experiment (SOFIE) instrument as the primary sensor in the NASA Aeronomy of Ice in the Mesosphere (AIM) instrument suite. AIM’s mission is to study polar mesospheric clouds (PMCs). SOFIE will make measurements in 16 separate spectral bands, arranged in eight pairs between 0.29 and 5.3 μm. Each band pair will provide differential absorption limb-path transmission profiles for an atmospheric component of interest, by observing the sun through the limb of the atmsophere during solar occulation as AIM orbits Earth. A pointing mirror and imaging sun sensor …
An Update Of Sounding Of The Atmosphere Using Broadband Emission Radiometry (Saber) Calibration, Joseph J. Tansock, James M. Russell Iii, Martin G. Mlynczak, Larry L. Gordley, Chris Brown, Greg Paxton, Patrick Mcmichaels
An Update Of Sounding Of The Atmosphere Using Broadband Emission Radiometry (Saber) Calibration, Joseph J. Tansock, James M. Russell Iii, Martin G. Mlynczak, Larry L. Gordley, Chris Brown, Greg Paxton, Patrick Mcmichaels
Space Dynamics Laboratory Publications
The sounding of the atmosphere using broadband emission radiometry (SABER) instrument is a 10-channel infrared (1.27–16.9μm) radiometer launched on the TIMED (Thermosphere, Ionosphere, Mesosphere Energetics, and Dynamics) satellite in December 2001 from Vandenburg Air Force Base. SABER measures earthlimb emissions and characterizes infrared radiation, allowing calculation of atmospheric temperature and composition (ozone, water vapor, and carbon dioxide), as well as solar and chemical heating rates and infrared cooling rates. Although SABER focuses on the unexplored 60-180km region, it makes measurements covering the 10-350km altitude region. Ground calibration testing was completed in September 1999. Subsequent data analyses and report generation were …
Sofie Instrument Ground Calibration, Scott Hansen, Chad Fish, Devin Romrell, Larry Gordley, Mark Hervig
Sofie Instrument Ground Calibration, Scott Hansen, Chad Fish, Devin Romrell, Larry Gordley, Mark Hervig
Space Dynamics Laboratory Publications
Space Dynamics Laboratory (SDL), in partnership with GATS, Inc., designed and built an instrument to conduct the Solar Occultation for Ice Experiment (SOFIE). SOFIE is the primary infrared sensor in the NASA Aeronomy of Ice in the Mesosphere (AIM) instrument suite. AIM’s mission is to study polar mesospheric clouds (PMCs). SOFIE will make measurements in 16 separate spectral bands, arranged in eight pairs between 0.29 and 5.3 μm. Each band pair will provide differential absorption limb-path transmission profiles for an atmospheric component of interest, by observing the sun through the limb of the atmosphere during solar occultation as AIM orbits …