All Stories

  1. Distinguishing Remobilized Ash From Erupted Volcanic Plumes Using Space-Borne Multiangle Imaging

    Article • Geophysical Research Letters, October 2017, Wiley

    Dr Ralph A Kahn

  2. Refined Use of Satellite Aerosol Optical Depth Snapshots to Constrain Biomass Burning Emissions in the GOCART Model

    Article • Journal of Geophysical Research Atmospheres, October 2017, Wiley

    Dr Ralph A Kahn

  3. Reducing multisensor monthly mean aerosol optical depth uncertainty: 2. Optimal locations for potential ground observation deployments

    Article • Journal of Geophysical Research Atmospheres, April 2017, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  4. Reducing multisensor satellite monthly mean aerosol optical depth uncertainty: 1. Objective assessment of current AERONET locations

    Article • Journal of Geophysical Research Atmospheres, November 2016, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  5. An analysis of global aerosol type as retrieved by MISR

    Article • Journal of Geophysical Research Atmospheres, May 2015, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  6. Earth's Climate Sensitivity: Apparent Inconsistencies in Recent Assessments

    Article • Earth s Future, December 2014, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  7. Global observations of aerosol-cloud-precipitation-climate interactions

    Article • Reviews of Geophysics, November 2014, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  8. Satellite data of atmospheric pollution for U.S. air quality applications: Examples of applications, summary of data end-user resources, answers to FAQs, and common mistakes to avoid

    Article • Atmospheric Environment, September 2014, Elsevier

    Dr Ralph A Kahn

  9. Sources, sinks, and transatlantic transport of North African dust aerosol: A multimodel analysis and comparison with remote sensing data

    Article • Journal of Geophysical Research Atmospheres, May 2014, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  10. Stereoscopic Height and Wind Retrievals for Aerosol Plumes with the MISR INteractive eXplorer (MINX)

    Article • Remote Sensing, September 2013, MDPI AG

    Dr Ralph A Kahn

  11. Tropical Atlantic dust and smoke aerosol variations related to the Madden‐Julian Oscillation in MODIS and MISR observations

    Article • Journal of Geophysical Research Atmospheres, May 2013, American Geophysical Union (AGU)

    Dr Ralph A Kahn, Dr Baijun Tian, Dr Olga Kalashnikova

  12. Satellite perspective of aerosol intercontinental transport: From qualitative tracking to quantitative characterization

    Article • Atmospheric Research, April 2013, Elsevier

    Dr Ralph A Kahn

  13. Recent instruments and algorithms for passive shortwave remote sensing

    Article • January 2013, Springer Science + Business Media

    Dr Ralph A Kahn

  14. Space-based observational constraints for 1-D fire smoke plume-rise models

    Article • Journal of Geophysical Research Atmospheres, November 2012, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  15. The use of satellite-measured aerosol optical depth to constrain biomass burning emissions source strength in the global model GOCART

    Article • Journal of Geophysical Research Atmospheres, September 2012, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  16. Satellite contributions to the quantitative characterization of biomass burning for climate modeling

    Article • Atmospheric Research, July 2012, Elsevier

    Dr Ralph A Kahn

  17. Reply to “Comments on ‘Why Hasn't Earth Warmed as Much as Expected?’”

    Article • Journal of Climate, March 2012, American Meteorological Society

    Dr Ralph A Kahn

  18. Desert Dust Properties, Modelling, and Monitoring

    Article • Advances in Meteorology, January 2012, Hindawi Publishing Corporation

    Dr Ralph A Kahn

  19. Reducing the Uncertainties in Direct Aerosol Radiative Forcing

    Article • Surveys in Geophysics, October 2011, Springer Science + Business Media

    Dr Ralph A Kahn

  20. Capabilities and limitations of MISR aerosol products in dust-laden regions

    Article • October 2011, SPIE

    Dr Ralph A Kahn, Dr Olga Kalashnikova

  21. Modulation of Atlantic aerosols by the Madden-Julian Oscillation

    Article • Journal of Geophysical Research Atmospheres, August 2011, American Geophysical Union (AGU)

    Dr Ralph A Kahn, Dr Baijun Tian

  22. Response to “Toward unified satellite climatology of aerosol properties. 3. MODIS versus MISR versus AERONET”

    Article • Journal of Quantitative Spectroscopy and Radiative Transfer, March 2011, Elsevier

    Dr Ralph A Kahn

  23. Reducing the Uncertainties in Direct Aerosol Radiative Forcing

    Article • January 2011, Springer Science + Business Media

    Dr Ralph A Kahn

  24. Multiangle Imaging SpectroRadiometer global aerosol product assessment by comparison with the Aerosol Robotic Network

    Article • Journal of Geophysical Research Atmospheres, December 2010, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  25. A geostatistical data fusion technique for merging remote sensing and ground-based observations of aerosol optical thickness

    Article • Journal of Geophysical Research Atmospheres, October 2010, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  26. A Hybrid Approach for Predicting PM2.5 Exposure: van Donkelaar et al. Respond

    Article • Environmental Health Perspectives, October 2010, Environmental Health Perspectives

    Dr Ralph A Kahn

  27. Ten years of MISR observations from Terra: Looking back, ahead, and in between

    Article • July 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Ralph A Kahn, Dr Olga Kalashnikova

  28. Why Hasn’t Earth Warmed as Much as Expected?

    Article • Journal of Climate, May 2010, American Meteorological Society

    Dr Ralph A Kahn

  29. Detecting thin cirrus in Multiangle Imaging Spectroradiometer aerosol retrievals

    Article • Journal of Geophysical Research Atmospheres, April 2010, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  30. Global Estimates of Ambient Fine Particulate Matter Concentrations from Satellite-Based Aerosol Optical Depth: Development and Application

    Article • Environmental Health Perspectives, March 2010, Environmental Health Perspectives

    Dr Ralph A Kahn

  31. Modeling optical properties of mineral aerosol particles by using nonsymmetric hexahedra

    Article • Applied Optics, January 2010, Optical Society of America (OSA)

    Dr Ralph A Kahn

  32. Kahn and Salawitch Receive 2009 Yoram J. Kaufman Award for Unselfish Cooperation in Research

    Article • Eos, January 2010, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  33. Analysis of the impact of the forest fires in August 2007 on air quality of Athens using multi-sensor aerosol remote sensing data, meteorology and surface observations

    Article • Atmospheric Environment, July 2009, Elsevier

    Dr Ralph A Kahn

  34. An Overview of Terra Mission Results Related to the Carbon Cycle

    Article • Geography Compass, February 2009, Wiley

    Dr Ralph A Kahn

  35. Retrieval of aerosol optical thickness for desert conditions using MERIS observations during the SAMUM campaign

    Article • Tellus B, February 2009, Co-Action Publishing

    Dr Ralph A Kahn

  36. Desert dust aerosol air mass mapping in the western Sahara, using particle properties derived from space-based multi-angle imaging

    Article • Tellus B, February 2009, Co-Action Publishing

    Dr Ralph A Kahn

  37. Spectral surface albedo over Morocco and its impact on radiative forcing of Saharan dust

    Article • Tellus B, February 2009, Co-Action Publishing

    Dr Ralph A Kahn

  38. Quantifying aerosol direct radiative effect with Multiangle Imaging Spectroradiometer observations: Top-of-atmosphere albedo change by aerosols based on land surface types

    Article • Journal of Geophysical Research Atmospheres, January 2009, American Geophysical Union (AGU)

    Dr Ralph A Kahn, Dr Yang Chen

  39. Retrieval of aerosol properties over land using MISR observations

    Article • January 2009, Springer Science + Business Media

    Dr Ralph A Kahn

  40. Review of the applications of Multiangle Imaging SpectroRadiometer to air quality research

    Article • Science in China Series D Earth Sciences, January 2009, Springer Science + Business Media

    Dr Ralph A Kahn

  41. Retrieval of aerosol optical thickness for desert conditions using MERIS observations during the SAMUM campaign

    Article • Tellus B, December 2008, Co-Action Publishing

    Dr Ralph A Kahn, Manfred Wendisch

  42. Single-scattering properties of triaxial ellipsoidal particles for a size parameter range from the Rayleigh to geometric-optics regimes

    Article • Applied Optics, December 2008, Optical Society of America (OSA)

    Dr Ralph A Kahn

  43. Mineral dust plume evolution over the Atlantic from MISR and MODIS aerosol retrievals

    Article • Journal of Geophysical Research Atmospheres, December 2008, American Geophysical Union (AGU)

    Dr Ralph A Kahn, Dr Olga Kalashnikova

  44. Spectral surface albedo over Morocco and its impact on radiative forcing of Saharan dust

    Article • Tellus B, December 2008, Co-Action Publishing

    Dr Ralph A Kahn, Manfred Wendisch

  45. Desert dust aerosol air mass mapping in the western Sahara, using particle properties derived from space-based multi-angle imaging

    Article • Tellus B, December 2008, Co-Action Publishing

    Dr Ralph A Kahn, Manfred Wendisch

  46. WindCam and MSPI: two cloud and aerosol instrument concepts derived from Terra/MISR heritage

    Article • August 2008, SPIE

    Dr Ralph A Kahn

  47. Quantitative studies of wildfire smoke injection heights with the Terra Multi-angle Imaging SpectroRadiometer

    Article • August 2008, SPIE

    Dr Ralph A Kahn, Dr Yang Chen

  48. Example applications of the MISR INteractive eXplorer (MINX) software tool to wildfire smoke plume analyses

    Article • August 2008, SPIE

    Dr Ralph A Kahn, Dr Yang Chen

  49. An overview of UAE2flight operations: Observations of summertime atmospheric thermodynamic and aerosol profiles of the southern Arabian Gulf

    Article • Journal of Geophysical Research Atmospheres, July 2008, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  50. POLDER2/ADEOSII, MISR, and MODIS/Terra reflectance comparisons

    Article • Journal of Geophysical Research Atmospheres, July 2008, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  51. Does the Madden-Julian Oscillation influence aerosol variability?

    Article • Journal of Geophysical Research Atmospheres, June 2008, American Geophysical Union (AGU)

    Dr Ralph A Kahn, Dr Baijun Tian

  52. Sensitivity of multiangle imaging to the optical and microphysical properties of biomass burning aerosols

    Article • Journal of Geophysical Research Atmospheres, May 2008, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  53. Wildfire smoke injection heights: Two perspectives from space

    Article • Geophysical Research Letters, February 2008, American Geophysical Union (AGU)

    Dr Ralph A Kahn, Dr Yang Chen

  54. Limits on climate sensitivity derived from recent satellite and surface observations

    Article • Journal of Geophysical Research Atmospheres, December 2007, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  55. Which Meteorological Conditions Produce Worst-Case Odors from Area Sources?

    Article • Journal of the Air & Waste Management Association, November 2007, Taylor & Francis

    Dr Ralph A Kahn

  56. Revised Algorithm for Estimating Light Extinction from IMPROVE Particle Speciation Data

    Article • Journal of the Air & Waste Management Association, November 2007, Taylor & Francis

    Dr Ralph A Kahn

  57. Characteristics of Real-World Vehicular Emissions in Chinese Cities

    Article • Journal of the Air & Waste Management Association, November 2007, Taylor & Francis

    Dr Ralph A Kahn

  58. Effects of Sulfur Dioxide and Oxides of Nitrogen Emission Reductions on Fine Particulate Matter Mass Concentrations: Regional Comparisons

    Article • Journal of the Air & Waste Management Association, November 2007, Taylor & Francis

    Dr Ralph A Kahn

  59. Satellite-derived aerosol optical depth over dark water from MISR and MODIS: Comparisons with AERONET and implications for climatological studies

    Article • Journal of Geophysical Research Atmospheres, September 2007, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  60. Aerosol source plume physical characteristics from space-based multiangle imaging

    Article • Journal of Geophysical Research Atmospheres, June 2007, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  61. Near-surface wind speed retrieval from space-based, multi-angle imaging of ocean sun glint patterns

    Article • Remote Sensing of Environment, March 2007, Elsevier

    Dr Ralph A Kahn

  62. The MISR radiometric calibration process

    Article • Remote Sensing of Environment, March 2007, Elsevier

    Dr Ralph A Kahn

  63. Simultaneous retrieval of aerosol and surface properties from a combination of AERONET and satellite data

    Article • Remote Sensing of Environment, March 2007, Elsevier

    Dr Ralph A Kahn

  64. Using aerosol optical thickness to predict ground-level PM2.5 concentrations in the St. Louis area: A comparison between MISR and MODIS

    Article • Remote Sensing of Environment, March 2007, Elsevier

    Dr Ralph A Kahn

  65. A data-mining approach to associating MISR smoke plume heights with MODIS fire measurements

    Article • Remote Sensing of Environment, March 2007, Elsevier

    Dr Ralph A Kahn

  66. Future Mission Concept for 3-D Remote Sensing of Aerosols from Low Earth Orbit

    Article • January 2007, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Ralph A Kahn

  67. Aerosol and Surface Properties Characterization from Joint Inversion of Ground-Based and Satellite Observations

    Article • January 2007, Optical Society of America (OSA)

    Dr Ralph A Kahn

  68. Current and future advances in optical multiangle remote sensing of aerosols and clouds based on Terra/MISR experience

    Article • December 2006, SPIE

    Dr Ralph A Kahn

  69. Multiscale Plume Transport from the Collapse of the World Trade Center on September 11, 2001

    Article • Environmental Fluid Mechanics, June 2006, Springer Science + Business Media

    Dr Ralph A Kahn

  70. Aerosol Optical Properties and Particle Size Distributions on the East Coast of the United States Derived from Airborne In Situ and Remote Sensing Measurements

    Article • Journal of the Atmospheric Sciences, March 2006, American Meteorological Society

    Dr Ralph A Kahn

  71. Ability of multiangle remote sensing observations to identify and distinguish mineral dust types: 2. Sensitivity over dark water

    Article • Journal of Geophysical Research Atmospheres, January 2006, American Geophysical Union (AGU)

    Dr Ralph A Kahn, Dr Olga Kalashnikova

  72. The value of multiangle measurements for retrieving structurally and radiatively consistent properties of clouds, aerosols, and surfaces

    Article • Remote Sensing of Environment, September 2005, Elsevier

    Dr Julienne Christine Stroeve, Dr Ralph A Kahn

  73. MISR Calibration and Implications for Low-Light-Level Aerosol Retrieval over Dark Water

    Article • Journal of the Atmospheric Sciences, April 2005, American Meteorological Society

    Dr Ralph A Kahn

  74. Radiative Transfer Modeling for the CLAMS Experiment

    Article • Journal of the Atmospheric Sciences, April 2005, American Meteorological Society

    Dr Ralph A Kahn

  75. Multiangle Imaging Spectroradiometer (MISR) global aerosol optical depth validation based on 2 years of coincident Aerosol Robotic Network (AERONET) observations

    Article • Journal of Geophysical Research Atmospheres, January 2005, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  76. Using angular and spectral shape similarity constraints to improve MISR aerosol and surface retrievals over land

    Article • Remote Sensing of Environment, January 2005, Elsevier

    Dr Ralph A Kahn

  77. Dust aerosol retrieval results from MISR

    Article • December 2004, SPIE

    Dr Ralph A Kahn, Dr Olga Kalashnikova

  78. Refinements to MISR's radiometric calibration and implications for establishing a climate-quality aerosol observing system

    Article • December 2004, SPIE

    Dr Ralph A Kahn, Dr Olga Kalashnikova

  79. Aerosol Data Sources and Their Roles within PARAGON

    Article • Bulletin of the American Meteorological Society, October 2004, American Meteorological Society

    Dr Ralph A Kahn

  80. Integrating and Interpreting Aerosol Observations and Models within the PARAGON Framework

    Article • Bulletin of the American Meteorological Society, October 2004, American Meteorological Society

    Dr Ralph A Kahn

  81. Scientific Objectives, Measurement Needs, and Challenges Motivating the PARAGON Aerosol Initiative

    Article • Bulletin of the American Meteorological Society, October 2004, American Meteorological Society

    Dr Ralph A Kahn

  82. Using the PARAGON Framework to Establish an Accurate, Consistent, and Cohesive Long-Term Aerosol Record

    Article • Bulletin of the American Meteorological Society, October 2004, American Meteorological Society

    Dr Ralph A Kahn

  83. PARAGON: An Integrated Approach for Characterizing Aerosol Climate Impacts and Environmental Interactions

    Article • Bulletin of the American Meteorological Society, October 2004, American Meteorological Society

    Dr Ralph A Kahn

  84. Environmental snapshots from ACE-Asia

    Article • Journal of Geophysical Research Atmospheres, January 2004, American Geophysical Union (AGU)

    Dr Ralph A Kahn, Dr Olga Kalashnikova

  85. Sensitivity of multiangle imaging to natural mixtures of aerosols over ocean

    Article • Journal of Geophysical Research Atmospheres, August 2001, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  86. Aerosol properties derived from aircraft multiangle imaging over Monterey Bay

    Article • Journal of Geophysical Research Atmospheres, June 2001, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  87. Exploitation of Surface Albedo Derived From the Meteosat Data to Characterize Land Surface Changes

    Article • January 2001, Springer Science + Business Media

    Dr Ralph A Kahn

  88. Surface albedo retrieval from Meteosat: 1. Theory

    Article • Journal of Geophysical Research Atmospheres, July 2000, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  89. Surface albedo retrieval from Meteosat: 2. Applications

    Article • Journal of Geophysical Research Atmospheres, July 2000, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  90. What Shall We Do with the Data We are Expecting from Upcoming Earth Observation Satellites?

    Article • Journal of Computational and Graphical Statistics, September 1999, Taylor & Francis

    Dr Ralph A Kahn

  91. What Shall We Do with the Data We Are Expecting from Upcoming Earth Observation Satellites?

    Article • Journal of Computational and Graphical Statistics, September 1999, JSTOR

    Dr Ralph A Kahn

  92. Aerobot measurements successfully obtained during Solo Spirit Balloon Mission

    Article • Eos, April 1999, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  93. Sensitivity of multiangle imaging to aerosol optical depth and to pure-particle size distribution and composition over ocean

    Article • Journal of Geophysical Research Atmospheres, December 1998, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  94. Sensitivity of multiangle remote sensing observations to aerosol sphericity

    Article • Journal of Geophysical Research Atmospheres, July 1997, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  95. Modeling phase functions for dustlike tropospheric aerosols using a shape mixture of randomly oriented polydisperse spheroids

    Article • Journal of Geophysical Research Atmospheres, July 1997, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  96. Temperature measurements of a Martian local dust storm

    Article • Journal of Geophysical Research Atmospheres, January 1995, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  97. Monitoring Mars with the Hubble Space Telescope: 1990-1991 Observations

    Article • Icarus, May 1994, Elsevier

    Dr Ralph A Kahn

  98. Ice haze, snow, and the Mars water cycle

    Article • Journal of Geophysical Research Atmospheres, January 1990, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  99. Coping with all the Earth science data

    Article • Eos, January 1988, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  100. Coping with all the Earth science data

    Article • Eos, January 1988, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  101. Integration of multi-discipline data processing for earth observing systems

    Article • June 1987, American Institute of Aeronautics and Astronautics (AIAA)

    Dr Ralph A Kahn

  102. The vertical structure of limb hazes in the Martian atmosphere

    Article • Icarus, December 1986, Elsevier

    Dr Ralph A Kahn

  103. Loss of fine-scale surface texture in Viking orbiter inages and implications for the inferred distribution of Debris Mantles

    Article • Icarus, April 1986, Elsevier

    Dr Ralph A Kahn

  104. The evolution of CO2 on Mars

    Article • Icarus, May 1985, Elsevier

    Dr Ralph A Kahn

  105. The spatial and seasonal distribution of Martian clouds and some meteorological implications

    Article • Journal of Geophysical Research Atmospheres, January 1984, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  106. Some observational constraints on the global-scale wind systems of Mars

    Article • Journal of Geophysical Research Atmospheres, January 1983, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  107. Deducing the age of the dense Venus atmosphere

    Article • Icarus, January 1982, Elsevier

    Dr Ralph A Kahn

  108. Long cloud observations on Mars and implications for boundary layer characteristics over slopes

    Article • Journal of Geophysical Research Atmospheres, January 1982, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  109. The Martian twilight

    Article • Journal of Geophysical Research Atmospheres, January 1981, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  110. Properties and effects of dust particles suspended in the Martian atmosphere

    Article • Journal of Geophysical Research Atmospheres, January 1979, American Geophysical Union (AGU)

    Dr Ralph A Kahn

  111. Properties of aerosols in the Martian atmosphere, as inferred from Viking Lander imaging data

    Article • Journal of Geophysical Research Atmospheres, September 1977, American Geophysical Union (AGU)

    Dr Ralph A Kahn