Search Results - "Martonchik, John V."

Multiangle Imaging Spectroradiometer (MISR) global aerosol optical depth validation based on 2 years of coincident Aerosol Robotic Network (AERONET) observations by Kahn, Ralph A., Gaitley, Barbara J., Martonchik, John V., Diner, David J., Crean, Kathleen A., Holben, Brent

“…Performance of the Multiangle Imaging Spectroradiometer (MISR) early postlaunch aerosol optical thickness (AOT) retrieval algorithm is assessed quantitatively…”
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Aerosol source plume physical characteristics from space-based multiangle imaging by Kahn, Ralph A., Li, W.-H., Moroney, Catherine, Diner, David J., Martonchik, John V., Fishbein, Evan

“…Models that assess aerosol effects on regional air quality and global climate parameterize aerosol sources in terms of amount, type, and injection height. The…”
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Satellite-derived aerosol optical depth over dark water from MISR and MODIS: Comparisons with AERONET and implications for climatological studies by Kahn, Ralph A., Garay, Michael J., Nelson, David L., Yau, Kevin K., Bull, Michael A., Gaitley, Barbara J., Martonchik, John V., Levy, Robert C.

“…Although the current Multiangle Imaging Spectroradiometer (MISR) and Moderate Resolution Imaging Spectroradiometer (MODIS) satellite passive remote sensing…”
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Canopy spectral invariants for remote sensing and model applications by Huang, Dong, Knyazikhin, Yuri, Dickinson, Robert E., Rautiainen, Miina, Stenberg, Pauline, Disney, Mathias, Lewis, Philip, Cescatti, Alessandro, Tian, Yuhong, Verhoef, Wout, Martonchik, John V., Myneni, Ranga B.

“…The concept of canopy spectral invariants expresses the observation that simple algebraic combinations of leaf and canopy spectral transmittance and…”
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Using angular and spectral shape similarity constraints to improve MISR aerosol and surface retrievals over land by Diner, David J., Martonchik, John V., Kahn, Ralph A., Pinty, Bernard, Gobron, Nadine, Nelson, David L., Holben, Brent N.

“…The Multi-angle Imaging SpectroRadiometer (MISR) instrument on the Terra satellite has demonstrated the capability to retrieve aerosol optical depths, surface…”
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Exploration of a Polarized Surface Bidirectional Reflectance Model Using the Ground-Based Multiangle SpectroPolarimetric Imager by Diner, David, Xu, Feng, Martonchik, John, Rheingans, Brian, Geier, Sven, Jovanovic, Veljko, Davis, Ab, Chipman, Russell, McClain, Stephen

“…Accurate characterization of surface reflection is essential for retrieval of aerosols using downward-looking remote sensors. In this paper, observations from…”
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Sensitivity of multi-angle photo-polarimetry to vertical layering and mixing of absorbing aerosols: Quantifying measurement uncertainties by Kalashnikova, Olga V., Garay, Michael J., Davis, Anthony B., Diner, David J., Martonchik, John V.

“…The impact of tropospheric aerosols on climate can vary greatly based upon relatively small variations in aerosol properties, such as composition, shape and…”
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Mapping woody plant cover in desert grasslands using canopy reflectance modeling and MISR data by Chopping, Mark J., Su, Lihong, Laliberte, Andrea, Rango, Albert, Peters, Debra P. C., Martonchik, John V.

“…A simplified geometric‐optical model (SGM) was inverted using red band reflectance data acquired at 275 m in nine viewing angles from the Multiangle Imaging…”
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MISR Aerosol Product Attributes and Statistical Comparisons With MODIS by Kahn, R.A., Nelson, D.L., Garay, M.J., Levy, R.C., Bull, M.A., Diner, D.J., Martonchik, J.V., Paradise, S.R., Hansen, E.G., Remer, L.A.

“…In this paper, Multi-angle Imaging SpectroRadiometer (MISR) aerosol product attributes are described, including geometry and algorithm performance flags…”
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Forest structure and aboveground biomass in the southwestern United States from MODIS and MISR by Chopping, Mark, Schaaf, Crystal B., Zhao, Feng, Wang, Zhuosen, Nolin, Anne W., Moisen, Gretchen G., Martonchik, John V., Bull, Michael

“…Red band bidirectional reflectance factor data from the NASA MODerate resolution Imaging Spectroradiometer (MODIS) acquired over the southwestern United States…”
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Large area mapping of southwestern forest crown cover, canopy height, and biomass using the NASA Multiangle Imaging Spectro-Radiometer by Chopping, Mark, Moisen, Gretchen G., Su, Lihong, Laliberte, Andrea, Rango, Albert, Martonchik, John V., Peters, Debra P.C.

“…A rapid canopy reflectance model inversion experiment was performed using multi-angle reflectance data from the NASA Multi-angle Imaging Spectro-Radiometer…”
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Forest canopy height from the Multiangle Imaging SpectroRadiometer (MISR) assessed with high resolution discrete return lidar by Chopping, Mark, Nolin, Anne, Moisen, Gretchen G., Martonchik, John V., Bull, Michael

“…In this study retrievals of forest canopy height were obtained through adjustment of a simple geometric-optical (GO) model against red band surface…”
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Comparison of coincident Multiangle Imaging Spectroradiometer and Moderate Resolution Imaging Spectroradiometer aerosol optical depths over land and ocean scenes containing Aerosol Robotic Network sites by Abdou, Wedad A., Diner, David J., Martonchik, John V., Bruegge, Carol J., Kahn, Ralph A., Gaitley, Barbara J., Crean, Kathleen A., Remer, Lorraine A., Holben, Brent

“…The Multiangle Imaging Spectroradiometer (MISR) and the Moderate Resolution Imaging Spectroradiometer (MODIS), launched on 18 December 1999 aboard the Terra…”
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Response to “Toward unified satellite climatology of aerosol properties. 3. MODIS versus MISR versus AERONET” by Kahn, Ralph A., Garay, Michael J., Nelson, David L., Levy, Robert C., Bull, Michael A., Diner, David J., Martonchik, John V., Hansen, Earl G., Remer, Lorraine A., Tanré, Didier

“…A recent paper by Mishchenko et al. compares near-coincident MISR, MODIS, and AERONET aerosol optical depth (AOD), and gives a much less favorable impression…”
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An optimization approach for aerosol retrievals using simulated MISR radiances by Diner, David J., Hodos, Rachel A., Davis, Anthony B., Garay, Michael J., Martonchik, John V., Sanghavi, Suniti V., von Allmen, Paul, Kokhanovsky, Alexander A., Zhai, Pengwang

“…Currently, many satellite-based aerosol retrievals make use of lookup tables (LUTs) containing precomputed solutions to the radiative transfer (RT) equation…”
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Multi-angle Imaging SpectroRadiometer (MISR) instrument description and experiment overview by Diner, D.J., Beckert, J.C., Reilly, T.H., Bruegge, C.J., Conel, J.E., Kahn, R.A., Martonchik, J.V., Ackerman, T.P., Davies, R., Gerstl, S.A.W., Gordon, H.R., Muller, J.-P., Myneni, R.B., Sellers, P.J., Pinty, B., Verstraete, M.M.

“…The Multi-angle Imaging SpectroRadiometer (MISR) instrument is scheduled for launch aboard the first of the Earth Observing System (EOS) spacecraft, EOS-AM1…”
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Techniques for the retrieval of aerosol properties over land and ocean using multiangle imaging by Martonchik, J.V., Diner, D.J., Kahn, R.A., Ackerman, T.P., Verstraete, M.M., Pinty, B., Gordon, H.R.

“…Aerosols are believed to play a direct role in the radiation budget of Earth, but their net radiative effect is not well established, particularly on regional…”
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Surface albedo retrieval from Meteosat: 1. Theory by Pinty, Bernard, Roveda, Fausto, Verstraete, Michel M., Gobron, Nadine, Govaerts, Yves, Martonchik, John V., Diner, David J., Kahn, Ralph A.

“…Land surface albedo constitutes a critical climatic variable, since it largely controls the actual amount of solar energy available to the Earth system. The…”
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Determination of land and ocean reflective, radiative, and biophysical properties using multiangle imaging by Martonchik, J.V., Diner, D.J., Pinty, B., Verstraete, M.M., Myneni, R.B., Knyazikhin, Y., Gordon, H.R.

“…Knowledge of the directional and hemispherical reflectance properties of natural surfaces, such as soils and vegetation canopies, is essential for…”
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Surface albedo retrieval from Meteosat: 2. Applications by Pinty, Bernard, Roveda, Fausto, Verstraete, Michel M., Gobron, Nadine, Govaerts, Yves, Martonchik, John V., Diner, David J., Kahn, Ralph A.

“…An advanced algorithm to retrieve the radiative properties of terrestrial surfaces sampled by the Meteosat visible instrument was derived in a companion paper…”
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