• MISR Radiance Anomalies Induced by Stratospheric Volcanic Aerosols 

  Wu, Dong L.; Wang, Tao; Várnai, Tamás; Limbacher, James A.; Kahn, Ralph A.; Taha, Ghassan; Lee, Jae N.; Gong, Jie; Yuan, Tianle (MDPI, 2018-11-23)

  The 16-year MISR monthly radiances are analyzed in this study, showing significant enhancements of anisotropic scattering at high latitudes after several major volcanic eruptions with injection heights greater than 14 km. ...

• Improving cloud optical property retrievals for partly cloudy pixels using coincident higher‐resolution single band measurements: A feasibility study using ASTER observations 

  Werner, F.; Zhang, Z.; Wind, G.; Miller, D.J.; Platnick, S.; Girolamo, L. Di (American Geophysical Union, 2018-10-09)

  Clear‐sky contamination is a challenging and long‐lasting problem for cloud optical thickness (τ) and effective droplet radius (rₑ𝒻𝒻) retrievals using passive satellite sensors. This study explores the feasibility of ...

• Satellite- and ground-based CO total column observations over 2010 Russian fires: accuracy of top-down estimates based on thermal IR satellite data 

  Yurganov, L. N.; Rakitin, V.; Dzhola, A.; August, T.; Fokeeva, E.; George, M.; Gorchakov, G.; Grechko, E.; Hannon, S.; Karpov, A.; Ott, L.; Semutnikova, E.; Shumsky, R.; Strow, L. (Copernicus Publications on behalf of the European Geosciences Union, 2011-08-04)

  CO total column data are presented from three space sounders and two ground-based spectrometers in Moscow and its suburbs during the forest and peat fires that occurred in Central Russia in July–August 2010. Also presented ...

• Infrared retrievals of dust using AIRS: Comparisons of optical depths and heights derived for a North African dust storm to other collocated EOS A‐Train and surface observations 

  DeSouza‐Machado, S.G.; Strow, L.L.; Imbiriba, B.; McCann, K.; Hoff, R.M.; Hannon, S.E.; Martins, J.V.; Tanré, D.; Deuzé, J.L.; Ducos, F.; Torres, O. (American Geophysical Union, 2010-08-03)

  [1] AIRS thermal infrared radiance data are used with a fast infrared scattering radiative transfer model to physically retrieve the dust column amount and dust height over both ocean and land. The retrieved optical depths ...

• Improved agreement of AIRS tropospheric carbon monoxide products with other EOS sensors using optimal estimation retrievals 

  Warner, J. X.; Wei, Z.; Strow, L. L.; Barnet, C.D.; Sparling, L. C.; Diskin, G.; Sachse, G. (Copernicus Publications on behalf of the European Geosciences Union, 2010-10-08)

  We present in this paper an alternative retrieval algorithm for the Atmospheric Infrared Sounder (AIRS) tropospheric Carbon Monoxide (CO) products using the Optimal Estimation (OE) technique, which is different from the ...

• Hyperspectral Earth Observation from IASI: Five Years of Accomplishments 

  Hilton, Fiona; Armante, Raymond; August, Thomas; Barnet, Chris; Bouchard, Aurelie; Camy-Peyret, Claude; Capelle, Virginie; Clarisse, Lieven; Clerbaux, Cathy; Coheur, Pierre-Francois; Collard, Andrew; Crevoisier, Cyril; Dufour, Gaelle; Edwards, David; Faijan, Francois; Fourrié, Nadia; Gambacorta, Antonia; Goldberg, Mitchell; Guidard, Vincent; Hurtmans, Daniel; Illingworth, Samuel; Jacquinet-Husson, Nicole; Kerzenmacher, Tobias; Klaes, Dieter; Lavanant, Lydie; Masiello, Guido; McNally, Anthony; Matricardi, Marco; Pavelin, Edward; Newman, Stuart; Payan, Sebastien; Péquignot, Eric; Peyridieu, Sophie; Phulpin, Thierry; Remedios, John; Schlüssel, Peter; Serio, Carmine; Strow, Larrabee; Stubenrauch, Claudia; Taylor, Jonathan; Tobin, David; Wolf, Walter; Zhou, Daniel (American Meteorological Society, 2012-03-01)

  The Infrared Atmospheric Sounding Interferometer (IASI) forms the main infrared sounding component of the European Organisation for the Exploitation of Meteorological Satellites's (EUMETSAT's) Meteorological Operation ...

• Rapid response quality control service for the laser ranging tracking network 

  Otsubo, Toshimichi; Müller, Horst; Pavlis, Erricos C.; Torrence, Mark H.; Thaller, Daniela; Glotov, Vladimir D.; Wang, Xiaoya; Sośnica, Krzysztof; Meyer, Ulrich; Wilkinson, Matthew J. (Springer Berlin Heidelberg, 2018-09-10)

  Quality control systems for satellite laser ranging (SLR) observations have been developed at a number of analysis institutes worldwide, using various software packages of precise orbit determination and data analysis. ...

• Shortwave direct radiative effects of above-cloud aerosols over global oceans derived from 8 years of CALIOP and MODIS observations 

  Zhang, Zhibo; Meyer, Kerry; Yu, Hongbin; Platnick, Steven; Colarco, Peter; Liu, Zhaoyan; Oreopoulos, Lazaros (Copernicus Publications on behalf of the European Geosciences Union, 2016-03-04)

  In this paper, we studied the frequency of occurrence and shortwave direct radiative effects (DREs) of above-cloud aerosols (ACAs) over global oceans using 8 years (2007–2014) of collocated CALIOP and MODIS observations. ...

• Assessing Climate Impacts on Regional Water Resources in the Midwestern US 

  Emelike, Joseph U.; Harper, David; Mann, Charlotte Z.; Boaitey, Kwame Owusu; Popuri, Sai K.; Neerchal, Nagaraj K.; Mehta, Amita (2015)

  It is well documented that decadal climate variability (DCV) has a signi cant impact on water resources in the Missouri River Basin (MRB). This project aims to utilize multi-decadal simulations of Global Climate Models ...

• Frequency and causes of failed MODIS cloud property retrievals for liquid phase clouds over global oceans 

  Cho, Hyoun Myoung; Zhang, Zhibo; Meyer, Kerry; Lebsock, Matthew; Platnick, Steven; Ackerman, Andrew S.; Girolamo, Larry Di; Labonnote, Laurent C.; Cornet, Céline; Riedi, Jerome; Holz, Robert E. (American Geophysical Union (AGU), 2015-04-09)

  Moderate Resolution Imaging Spectroradiometer (MODIS) retrieves cloud droplet effective radius (rₑ) and optical thickness (τ) by projecting observed cloud reflectances onto a precomputed look‐up table (LUT). When observations ...

• Improving the Computational Effciency of Downscaling GCM data for Use in SWAT 

  Evans, Christopher; Gartrell, Abigail; Gomez, Lauren; Mouyebe, Moise; Oxley, Darius; Popuri, Sai Kumar; Neerchal, Nagaraj K.; Mehta, Amita (2014)

  This project creates software tools to streamline the computational procedures to generate high-resolution weather parameters from low resolution Global Climate Models (GCM) to be input into the Soil and Water Assessment ...

• Vertically Resolved Precipitation Intensity Retrieved through a Synergy between the Ground-Based NASA MPLNET Lidar Network Measurements, Surface Disdrometer Datasets and an Analytical Model Solution 

  Lolli, Simone; D’Adderio, Leo Pio; Campbell, James R.; Sicard, Michaël; Welton, Ellsworth J.; Binci, Andrea; Rea, Alessandro; Tokay, Ali; Comerón, Adolfo; Barragan, Ruben; Baldasano, Jose Maria; Gonzalez, Sergi; Bech, Joan; Afflitto, Nicola; Lewis, Jasper R.; Madonna, Fabio (Molecular Diversity Preservation International (MDPI), 2018-07-11)

  In this paper, we illustrate a new, simple and complementary ground-based methodology to retrieve the vertically resolved atmospheric precipitation intensity through a synergy between measurements from the National Aeronautics ...

• Creating a Single Radiance Climate Record from AIRS, IASI and CrIS 

  Hepplewhite, Chris; Motteler, Howard; Machado, Sergio De-Souza; Buzckowski, Steven; Strow, L. Larrabee (2018)

  We investigate three key aspects for creating a climate record from multiple hyperspectral infra-red sensors. The motivation is to produce a multi-decade continuous record of global radiance measured leaving the atmosphere. ...

• Dimensionality Reduction Using Sliced Inverse Regression in Modeling Large Climate Data 

  Allison, Ross Flieger; Miller, Lois; Sykes, Danielle; Valle, Pablo; Popuri, Sai K.; Wijekoon, Nadeesri; Neerchal, Nagaraj K.; Mehta, Amita (2016)

  Prediction of precipitation using simulations on various climate variables provided by Global Climate Models (GCM) as covariates is often required for regional hydrological assessment studies. We use a sufficient dimension ...

• Enhanced Data Exploration and Visualization Tool for Large Spatio-Temporal Climate Data 

  Kahmann, Sydney; Crasto, Ethan; Rodriguez, Paula; Smith, Benjamin; Popuri, Sai K.; Wijekoon, Nadeesri; Neerchal, Nagaraj K.; Mehta, Amita

  Predictions of climate variables like precipitation and maximum/minimum temperatures play crucial role in assessing the impact of decadal climate changes on regional water availability. This technical report describes a ...

• Using Historical Data for Retrospective Prediction of Rainfall In the Midwest 

  Alfa, Ephraim; Chen, Huiyi; Hansen, Kristen; Prindle, Mathew; Popuri, Sai; Wijekoon, Nadeesri; Adragni, Kofi; Mehta, Amita

  The Missouri River Basin (MRB) is an important food-producing region in the United States and Canada. Climate variability and water availability affect crops production in this region. Past climate data have been recorded ...

• A framework for quantifying the impacts of sub-pixel reflectance variance and covariance on cloud optical thickness and effective radius retrievals based on the bispectral method 

  Zhang, Z.; Werner, F.; Wind, G.; Platnick, S.; Ackerman, A. S.; Girolamo, L. Di; Marshak, A.; Meyer, Kerry; Cho, H. M. (American Institute of Physics (AIP), 2017-02-22)

  The so-called bi-spectral method retrieves cloud optical thickness (τ) and cloud droplet effective radius (rₑ) simultaneously from a pair of cloud reflectance observations, one in a visible or near infrared (VIS/NIR) band ...

• Retrieval of ice cloud properties using an optimal estimation algorithm and MODIS infrared observations: 2. Retrieval evaluation 

  Wang, Chenxi; Platnick, Steven; Zhang, Zhibo; Meyer, Kerry; Wind, Gala; Yang, Ping (AGU, 2016-05-17)

  An infrared-based optimal estimation ( OE-IR) algorithm for retrieving ice cloud properties is evaluated. Specifically, the implementation of the algorithm with MODerate resolution Imaging Spectroradiometer (MODIS) observations ...

• Retrieval of ice cloud properties using an optimal estimation algorithm and MODIS infrared observations: 1. Forward model, error analysis, and information content 

  Wang, Chenxi; Platnick, Steven; Zhang, Zhibo; Meyer, Kerry; Yang, Ping (AGU, 2016-05-17)

  An optimal estimation (OE) retrieval method is developed to infer three ice cloud properties simultaneously: optical thickness (τ), effective radius (r ₑ𝒻𝒻 ), and cloud top height (h). This method is based on a fast ...

• The impact of cloud vertical profile on liquid water path retrieval based on the bispectral method: A theoretical study based on large‐eddy simulations of shallow marine boundary layer clouds 

  Miller, Daniel J.; Zhang, Zhibo; Ackerman, Andrew S.; Platnick, Steven; Baum, Bryan A. (AGU, 2016-04-06)

  Passive optical retrievals of cloud liquid water path (LWP), like those implemented for Moderate Resolution Imaging Spectroradiometer (MODIS), rely on cloud vertical profile assumptions to relate optical thickness (τ) and ...

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