133) X. Zhixin, U. Nair, and S.A. Christopher, An investigation of the impact of Canadian
Wildfires on US air quality using satellite, model, and ground measurements, submitted to
Atmospheric Chemistry and Physics Discussion
134) Chang, I et al, including S.A. Christopher), Low cloud diurnal cycles drive regional aerosol radiative warming, submitted, Nature Geoscience
135) Corey Amiot et al (including S.A. Christopher), Environmental and aerosol impacts on maritime tropical convection observed from airborne radiometer, radar, lidar, and dropsondes., to be submitted to Atmospheric Chemistry and Physics Discussions.
132) Gupta, Pawan, S.A. Christopher, F. Patadia & N. Rastogi. (2023). The unusual stubble burning season of 2020 in northern India: a satellite perspective. International Journal of Remote Sensing. 44. 6882-6896. 10.1080/01431161.2023.2277160. . 131) Chang, I., Gao, L., Flynn, C. J., Shinozuka, Y., Doherty, S. J., Diamond, M. S., Longo, K. M., Ferrada, G. A., Carmichael, G. R., Castellanos, P., da Silva, A. M., Saide, P. E., Howes, C., Xue, Z., Mallet, M., Govindaraju, R., Wang, Q., Cheng, Y., Feng, Y., Burton, S. P., Ferrare, R. A., LeBlanc, S. E., Kacenelenbogen, M. S., Pistone, K., Segal-Rozenhaimer, M., Meyer, K. G., Ryoo, J.-M., Pfister, L., Adebiyi, A. A., Wood, R., Zuidema, P., S.A. Christopher, and Redemann, J.: On the diherences in the vertical distribution of modeled aerosol optical depth over the southeastern Atlantic, Atmos. Chem. Phys., 23, 4283–4309, https://doi.org/10.5194/acp-23-4283-2023, 2023.
131) Monitoring Surface PM2. 5: An International Constellation Approach to Enhancing the Role of Satellite Observations, S Kondragunta, B Veihelmann, JR Chatfield, M Chin, S.A. Christopher.... - Committee on Earth Observation Satellites (CEOS) …,
130) Sayeed, A., Lin, P., Gupta, P., Tran, N. N. M., Buchard, V., & Christopher, S. (2022). Hourly and daily PM2.5 estimations using MERRA-2: A machine learning approach. Earth and Space Science, 9, e2022EA002375.
129) Bratburd, J. et al (including S.A. Christopher), Incorporating satellite data updates into AirNOW, Air and Waste Management Association, EM magazine, October, 2022. 128) Phillips, C., Nair, U., & S.A. Christopher (2022). The influence of dust-smoke mixtures on boundary layer processes and nocturnal warming in the Sahel. Journal of Geophysical Research: Atmospheres, 127, e2021JD036349.
127) Zongwei Ma, Sagnik Dey, S.A. Christopher, Riyang Liu, Jun Bi, Palak Balyan, Yang Liu, A review of statistical methods used for developing large-scale and long-term PM2.5 models from satellite data, Remote Sensing of Environment, Volume 269, 2022, 112827, ISSN 0034-4257, https://doi.org/10.1016/j.rse.2021.112827.
126) Le Roux, J., S.A. Christopher, and M. Maskey, Exploring the Use of PlanetScope Data for Particulate Matter Air Quality Research, Remote Sens. 2021, 13(15), 2981; https://doi.org/10.3390/rs13152981.
125) Chang et al (including S.A. Christopher), Spatiotemporal heterogeneity of aerosol and cloud properties over the southeast Atlantic: An observational analysis, Geophysical Research Letters, 48, e2020GL091469. https://doi.org/10.1029/2020GL091469 124) Xue, Z, P. Gupta, S.A. Christopher, Satellite-based estimation of the impacts of summer time wildfires in North Western United States and Canada on Particulate Matter Air quality in United States, Atmospheric Chemistry and Physics, 11243–11256, 2021, https://doi.org/10.5194/acp-21-11243-2021
124) Gupta,P., L. Remer, F. Patadia, R. Levy, S.A. Christopher, High Resolution Level 3 Gridded Aerosol Optical Depth Product from MODIS, Remote Sensing, 12(17), 2847; https://doi.org/10.3390/rs12172847 2020..
123) Christopher, S. A.,., and P. Gupta, Global Distribution of Column Satellite Aerosol Optical Depth to Surface PM2.5 Relationships, Remote Sensing,12, 1985; doi:10.3390/rs1212198, 2020..
121) Pullman, M., M. Maskey, R. Ramachandran, S.A. Christopher, I. Gurung, 2019: Applying Deep Learning to Hail Detection: A Case Study, IEEE Trans. on Geoscience and
Remote Sensing, 10, 57(12), 10218-10225
120) Menon, V., Q. Du., S.A. Christopher, Improved Random Projection with K-Means Clustering for Hyperspectral Image Classification, IEEE International Geoscience and
Remote Sensing, 4768-4771
119) Kaulfus, A. S., U. Nair, D. A. Jahe, S. A. Christopher, and S. Goodrick, 2017: Biomass burning smoke climatology of the United States: Implications for particulate matter air quality. Environ. Sci. Technol., doi:10.1021/acs.est.7b03292
118) Contreras,A., J. Zhang, J, Reid, and, S.A. Christopher, A Study of the Longer Term Variation of Aerosol Optical Thickness and Direct Shortwave Aerosol Radiative Ehect Trends Using MODIS and CERES,Atmos. Chem. Phys., 17, 13849–13868, 2017 https://doi.org/10.5194/acp-17-13849-2017.
117) Chang, I. & Christopher, S. A. (2017). The impact of seasonalities on direct radiative eMects and radiative heating rates of absorbing aerosols above clouds. Quarterly Journal of the Royal Meteorological Society, 143(704), 1395–1405. https://doi.org/10.1002/qj.3012
116) Chang, Y.Y., and S.A. Christopher, Identifying Aerosols above Clouds using the Spinning Enhanced Visible and Infrared Imager, IEEE Transactions on Geoscience and
Remote Sensing, 54(6), 3163-3173, 2016,
115) Feng, N., and S. A. Christopher (2015), Measurement-based estimates of direct radiative ehects of absorbing aerosols above clouds, J. Geophys. Res. Atmos.,120,doi:10.1002/2015JD023252.
114) Feng, N., and S.A. Christopher, Clear sky direct radiative ehects of aerosols over Southeast Asia based on satellite observations and radiative transfer calculations, 152, 333-344, 2014. (pdf file).
113) Guo, Y., N. Feng, S.A. Christopher, S. Hong, P. Kong, Estimation of fine particulate matter air quality over Beijing using satellite measurements, International Journal of
Remote Sensing, 35(17), 2014
112) Christopher, S. A, 2014: Simulation of GOES-R ABI aerosol radiances using WRFCMAQ: a case study approach, Atmos. Chem. Phys. Discuss., 13, 18713-18748, doi:10.5194/acpd-13-18713-2013, 2013,
111) Naeger, A. R. and Christopher, S. A.: The identification and tracking of volcanic ash using the Metaset Second Generation (MSG) Spinning Enhanced Visible and Infra-Red Imager (SEVIRI), Atmos. Meas. Tech. Discuss., 6, 5577-5619, doi:10.5194/amtd-6-55772013, 2013,
110) Patadia, F., and S.A. Christopher, Assessment of Smoke Shortwave Radiative Forcing using Empirical Angular Distribution Models, Remote Sensing of Environment, 140, 233240), 2014,
109) Naeger, A., S.A. Christopher, B. Johnson, Multi-platform analysis of the radiative ehects and heating rates of an intense dust storm on June 21, 2007, Journal of Geophysical Research - Atmospheres, 118, 1-14, 2013,.
108) Feng, N., and S. A. Christopher (2013), Satellite and surface-based remote sensing of Southeast Asian aerosols and their radiative ehects, Atmospheric Research, 122, 544554
107) Fisher, A., A. Frendi, and S. A. Christopher (2013), Using satellite remote sensing to monitor rocket launch induced pollution, International Journal of Remote Sensing, 34(1), 60-72.
106) Naeger, A. R., S. A. Christopher, R. Ferrare, and Z. Liu (2013), A new technique using infrared satellite measurements to improve the accuracy of the CALIPSO cloud-aerosol discrimination method, IEEE Transactions on Geoscience and Remote Sensing, 51(1), 642653.
105) Reid, J. S., et al. (including S.A. Christopher) (2013), Observing and understanding the Southeast Asian aerosol system by remote sensing: An initial review and analysis for the Seven Southeast Asian Studies (7SEAS) program, Atmospheric Research, 122, 403-468.
104) Huh, A.K., R.M. Hoh, S. Kondragunta, H. Zhang, P. Ciren, C. Xu, S.A. Christopher, E-S. Yang, J. Szykman, The Air Quality Proving Ground (AQPG):Preparing the Air Quality Community for Next Generation Products from the GOES-R Satellite, Air and Waste Management Association, 32-37, November, 2012.
103) Christopher , S.A., N. Feng, A. Naeger, B. Johnson, F. Marenco, Satellite remote sensing analysis of the 2010 Eyjafjallajokull volcanic ash cloud over the North Sea during May 4-May18, 2010, J. Geophys. Res., doi:10.1029/2011JD016850,2012,.
102) Superczynski, S., and S. A. Christopher, Exploring Land Use and Land Cover Ehects on Air Quality in Central Alabama using GIS and Remote Sensing, Remote Sensing, Remote
Sens. 2011, 3(12), 2552-2567; doi:10.3390/rs3122552,
101) Haywood, B.T. Johnson, S.R. Osborne, A.J. Baran, M. Brooks, S.F. Milton, J. Mulcahy, D. Walters, R.P. Allan, M.J. Woodage, A. Klaver, P. Formenti, H.E. Brindley, S. A. Christopher, P. Gupta, Motivation, rationale, and key results from the GERBILS Saharan dust measurement campaign, to be submitted to Q. J. Royal. Met. Soc., 137, 11061116, 2011.
100) Christopher, S. A.,., P. Gupta, B. Johnson, and J. Haywood, Multi-sensor satellite remote sensing of dust aerosols over North Africa during GERBILS, Quarterly J. of Royal Met. Soc.,137, 1168-1178, doi:10.1102/qj.863, 2011.
99) Johnson, B.T., M.E. Brooks, D. Walters, S. A. Christopher, K. Schepanski, Assessment of the Met Ohice dust forecast model using observations from the GERBILS campaign, Quarterly J. of Royal Met. Soc., 137, 1131-1138, doi:10.1002/qj.736, 2011.
98) F. Patadia, S. A. Christopher, and J. Zhang (2011), Development of empirical angular distribution models for smoke aerosols: Methods, J. Geophys. Res., 116, D14203, doi:10.1029/2010JD015033, 2011.
97) Fairman, J. G., Jr., U. S. Nair, S. A. Christopher, and T. Mölg (2011), Land use change impacts on regional climate over Kilimanjaro, J. Geophys. Res., 116,D03110, doi:10.1029/2010JD014712,.
96) T.A. Jones and S. A. Christopher, Jones, .: A reanalysis of MODIS fine mode fraction over ocean using OMI and daily GOCART simulations, Atmos. Chem. Phys., 11, 5805-5817, doi:10.5194/acp-11-5805-2011, 201, 2011.
95) Christopher, S. A.,., Satellite remote sensing methods for estimating clear Sky shortwave Top of atmosphere fluxes used for aerosol studies over the global oceans, Remote Sensing of Environment (2011), doi:10.1016/j.rse.2011.06.003, 2011.
94) Yang, E., S. A. Christopher, S. Kondragunta, and X. Zhang (2011), Use of hourly Geostationary Operational Environmental Satellite (GOES) fire emissions in a Community Multiscale Air Quality (CMAQ) model for improving surface particulate matter predictions, J. Geophys. Res., 116, D04303, doi:10.1029/2010JD014482. .
93) T.A. Jones and S. A. Christopher, A Multi-sensor approach for Assessing the Impacts of Ultraviolet - Absorbing Aerosols on Top of Atmosphere Radiative Fluxes, Int. J. Rem.
Sensing, 32(16), 4659-4682.
Lacorte, S.G., A Neural Network Approach to tornado forecasting in North Alabama and Southern Middle Tennessee - M.S. thesis
92) Nair, U. S., R. McNider, F. Patadia, S. A. Christopher, and K. Fuller (2011), Sensitivity of nocturnal boundary layer temperature to tropospheric aerosol surface radiative forcing under clear-sky conditions, J. Geophys. Res., 116, D02205, doi:10.1029/2010JD014068.
91) Christopher, S. A.,., & Jones, T.A., Satellite and surface-based remote sensing of Saharan dust aerosols, Remote Sensing of Environment (2010), doi:10.1016/j.rse.2009.12.007 - 2010.
90) S.A. Christopher and P. Gupta, Satellite Remote Sensing of Particulate Matter Air Quality: The Cloud Cover Problem, J. Air and Waste Management, 60, 596-602., 2010.
89) Jones, T.A., and S.A. Christopher, Satellite and Radar Remote Sensing of of Southern Plains grassfires : A case study, J. Applied Meteorology and Climatology - 49, 2133-2146, 2010.
88) Jones, T.A., and S. A. Christopher, Statistical properties of aerosol-cloud-precipitation interactions in South America, Atmospheric Chemistry and Physics, 10, 2287-2305, 2010.
87) Anantharaj, V.G., U.S. Nair, P. Lawrence, T.N. Chase, S. A. Christopher, and T.A. Jones, Comparisons of Satellite-derived TOA Shortwave Fluxes to Estimates from GCM Simulations Constrained by Satellite Observations of Land Characteristics, International J. Climate, DOI:10.1002/joc.2107, 2010.
86) T.A. Jones and S. A. Christopher, Assessment of temperature and humidity changes associated with the September 2009 dust storm in Australia, Geoscience Research Letters, 99, 268-272, doi:10.1109/LGRS.2010.2063693.
85) Jones, T.A., and S. A. Christopher, Satellite and Radar Observations of the 9 April 2009 Texas and Oklahoma Grassfires, Bulletin of Amer. Meteor. Soc, DOI:10.1175/2009BAMS2919., 2010.
Patadia, F., Satellite-based assessment of aerosol radiative forcing over land with improved smoke angular models - A Ph.D. dissertation, 2010. Superczynski, S., Land use and land cover impacts on air quality : A GIS and Remote Sensing Approach, M.S. thesis, 2010.
S.A. Christopher, Book Chapter, Satellite Remote Sensing of Global Air Quality,Environmental Remote Sensing, 2010.
Guo, J., X. Zahng, C. Cao, H. Che, H. Liu, P. Gupta, H. Zhang, M. Xu, X. Li., Monitoring haze episodes over the yellow Sea by Combining multisensor measurements, Int. J. Rem. Sens., 31, 4743-4755.
84) Wu, Y., Nair, U., R.A. Pielke, R.T. McNider, S.A. Christopher, V. Anantharaj, Impact of Land Surface Heterogeneity on mesoscale atmospheric dispersion, Boundary Layer
Meteorology, (133, 10.1007/s10546-009-9415-1, 2009
83) Yang, E.-S., P. Gupta, and S. A. Christopher (2009), Net radiative ehect of dust aerosols from satellite measurements over Sahara, Geophys. Res. Lett., 36, L18812, doi:10.1029/2009GL039801.
82) Gupta, P., and S. A. Christopher (2009), Particulate matter air quality assessment using integrated surface, satellite, and meteorological products: 2. A neural network approach, J. Geophys. Res., 114, D20205, doi:10.1029/2008JD011497.
81) Reid, J.S., E.J. Hyer, E.M. prins, D.L.Westphal, J. Zhang, J. Wang, S.A. Christopher, C.A. Curtis, C.C. Schmidt, D.L. Eleuterio, and J. Hohman, GLobal monitoring and forecasting of biomass-burning smoke:Description and lessons from the Fire Locating and modeling of Burning Emissions (FLAMBE) program,IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2, 144-162, 2009
80) Jones, T.A., S.A. Christopher, and W. Petersen, Dual Polarimetric and dual wavelength radar characteristics of an apartment fire, J. Atmospheric and Oceanic Technology, 27, 2257-2269
79) Patadia, F., E.-S. Yang, and S. A. Christopher (2009), Does dust change the clear sky top of atmosphere shortwave flux over high surface reflectance regions? Geophys. Res.
Lett., 36, L15825, doi:10.1029/2009GL039092 -
78) Christopher, S. A.,., P. Gupta, U. Nair, T.A. Jones, S. Kondragunta, Y. Wu, J. Hand, X. Zhang, Satellite Remote Sensing and Mesoscale Modeling of the 2007 Florida/Georgia Fires, IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing (JSTARS-2009-00020), 26, 1-13.
77) Gupta, P., and S. A. Christopher (2009), Particulate matter air quality assessment using integrated surface, satellite, and meteorological products: Multiple regression approach, J.
Geophys. Res., 114, D14205, doi:10.1029/2008JD011496.
76) Hoh, R., and S.A. Christopher, Remote Sensing of Particualte Matter Air Pollution from Space : Have we reached the promised land, J. Air&Waste Manage. Assoc., 59:642-675 - May, 2009.
75) Johnson, B.T., S.A. Christopher, J.M. Haywood, and S.R. Osborne, Measurements of aerosol properties from aircraft, satellite and ground-based remote sensing : A case study from the Dust and Biomass Burning Experiment (DABEX), Q. J. Royal Met. Soc., 135 (641), 922-934.
74) Radhi, M., M.A. Box, G.P. Box, S.A. Christopher, P. Gupta, Evolution of the Optical Properties of Biomass Burning Aerosol During the 2003 South-eastern Australian Bushfires, Applied optics 48(9):1764-73, 2009 Mar 20
73) Christopher, S. A., B. Johnson, T. A. Jones, and J. Haywood (2009), Vertical and spatial distribution of dust from aircraft and satellite measurements during the GERBILS field campaign, Geophys Res. Lett., 36, L06806, doi:10.1029/2008GL037033 .
72) Myhre, G., T. F. Berglen, C.R. Hoyle, S.A. Christopher, J. Crosier, P. Formenti, J.M. Haywood, M. Johnsrud, T.A. Jones, N. Loeb, S. Osborne, L.A. Remer, Modeling of chemical and physical aerosol properties during the ADRIEX aerosol campaign, Q. J. Royal Met. Soc., 135, 53-66 2009.
71) T. A. Jones, and S.A. Christopher, Injection heights of biomass burning debris estimated from WSR-88D radar observations- Transactions of Geoscience and Remote Sensing, 47(8), 2599-2605.
70) Jones, T.A., S.A. Christopher, and J. Qaas, A six-year satellite-based assessment of the regional variations of aerosol indirect ehects, Atmos. Chem. Phys., 9, 4091-4114, 2009.
69) Myhre, G., T.F. Berglen, M. Johnrsud, C.R. Hoyle, T.K. Bernesten, S.A. Christopher, D.W. Fahey, I.S.A. Isaksen, T.A. Jones, R.A. Kahn, N. Loeb, P. Quinn, L. Remer, J.P. Schwarz, K.E. Yttri, Radiative Forcing of the direct aerosol ehect using a multi-observation approach, Atmospheric Chemistry and Physics, 1365-1392, 2009.
68) Haywood, J., N. Bharmal, M. Brooks, G. Capes, C. Chou, H. Coe, S. A. Christopher, J. Cuesta, Y. Derimian, P. Forment, B. Johnson, S. Osborne, S. Milton, G. Greed, M. Harrison, B. Heese, E. Highwood, M. Mallet, J. Marsham, G. Myhre, D. Parker, J. Pelon, J-L. Rajot, T. Slingo, D. Tanre, P. Tulet, Overview of the Dust and biomass burning Experiment and African Multidisciplinary Mpnsoon Analysis Special Observation period, submitted to J. Geophysical Research-Atmospheres, 113, doi:10.1029/2008JD010077, (
67) Gupta, P., and S.A. Christopher, An evaluation of Terra-MODIS sampling for monthly and annual particulate matter air quality assessment over the Southeastern United States, Atmospheric Environment, 42, 6465-6471, 2008. -
66) Christopher, S. A., P. Gupta, J. Haywood, and G. Greed (2008), Aerosol optical thicknesses over North Africa: 1. Development of a product for model validation using Ozone Monitoring Instrument, Multiangle Imaging Spectroradiometer, and Aerosol Robotic Network, J. Geophys. Res., 113, D00C04, doi:10.1029/2007JD009446.
65) Greed, G., J. M. Haywood, S. Milton, A. Keil, S. Christopher, P. Gupta, and E. J. Highwood (2008), Aerosol optical depths over North Africa: 2. Modeling and model validation, J. Geophys. Res., 113, D00C05, doi:10.1029/2007JD009457.
64) T.A. Jones, and S.A. Christopher, Multi-spectral analysis of aerosol type using principal component analysis, IEEE Trans. Geoscience Remote Sensing, 46(9), 1-7.
63) S.A. Christopher and T. A. Jones, (2008) Short-wave aerosol radiative deficiency over the global oceans derived from satellite data. Tellus B 0(0): 080529042315537-
62) Gupta, S.A., and S.A. Christopher, Seven Year Particulate Matter Air Quality Assessment from Surface and Satellite Measurements, Atmospheric Chemistry and Physics Discussion, 8, 3311-3324, 2008-
61) Patadia, F., P. Gupta, S. A. Christopher, and J. S. Reid (2008), A Multisensor satellite based assessment of biomass burning aerosol radiative impact over Amazonia, J. Geophys. Res., 113, D12214, doi:10.1029/2007JD009486 -
60) Bellouin, N., A. Jones, J. Haywood, and S. A. Christopher (2008), Updated estimate of aerosol direct radiative forcing from satellite observations and comparison against the Hadley Centre climate model, J. Geophys. Res., 113, D10205, doi:10.1029/2007JD009385
59) Gupta, P., F. Patadia, S.A. Christopher, Multi-sensor data product fusion for aerosol research, IEEE Trans. Geoscience Remote Sensing, special issue on data fusion, 46 (5), 2008
58) Christopher, S. A.,.; Jones, T.A. Sample Bias Estimation for Cloud-Free Aerosol Ehects Over Global Oceans, IEEE Transactions on Geoscience and Remote Sensing, Volume 46,
Issue 6, June 2008 Page(s):1728 - 1732-
57) Jones, T. A., and S. A. Christopher (2008), Seasonal variation in satellite-derived ehects of aerosols on clouds in the Arabian Sea, J. Geophys. Res., 113, D09207, doi:10.1029/2007JD009118.
56) Patadia, F., P. Gupta, and S. A. Christopher (2008), First observational estimates of global clear sky shortwave aerosol direct radiative ehect over land, Geophys. Res. Lett., 35,
L04810, doi:10.1029/2007GL032314. -
55) S.A. Christopher, and T. A. Jones, Dust Radiative Ehect over Global Oceans, IEEE Geoscience and Remote Sensing Letters, 5(1), 74-77, 2008. Gupta, P., Particulate matter air quality assessment over South Eastern United States using Satellite and Ground Measurements, Ph.D. Dissertation, UAHuntsville, Department of Atmospheric Science, Advisor, Dr. Sundar Christopher,
54) Greenwald, T.J., T.L'Ecuyer, and S.A. Christopher, Global error characteristics of microwave-based estimates of cloud liquid water path, Geophysical Research
Letters, L22807, doi:10.1029/2007GL031180, 2007
53) Jones, T. A., and S. A. Christopher (2007), MODIS derived fine mode fraction characteristics of marine, dust, and anthropogenic aerosols over the ocean, constrained by GOCART, MOPITT, and TOMS, J. Geophys. Res., 112, D22204, doi:10.1029/2007JD008974
52) T. A. Jones, and S.A. Christopher, Statistical Uncertainty of Top of Atmosphere Cloudfree Shortwave Aerosol radiative Ehect, Atmospheric Chemistry and Physics
Discussion, 7, 2937-2948, 2007
51) Jones, T. A., and S. A. Christopher (2007), Is the top of atmosphere dust net radiative ehect diherent between Terra and Aqua?, Geophys. Res. Lett., 34, L02812, doi:10.1029/2006GL028262
50) Christopher, S. A., and T. Jones (2007), Satellite-based assessment of cloud-free net radiative ehect of dust aerosols over the Atlantic Ocean, Geophys. Res. Lett., 34, L02810, doi:10.1029/2006GL027783.
49) P. Gupta, S. A. Christopher, M.A. Box, and G.P. Box, Multiyear satellite remote sensing of particulate matter air quality over Sydney, Australia, International J. Remote Sensing, doi:10.1080/01431160701241738, 2007.
48) Nair, U. S., D. K. Ray, J. Wang, S. A. Christopher, T. J. Lyons, R. M. Welch, and R. A. Pielke, Sr. (2007), Observational estimates of radiative forcing due to land use change in southwest Australia, J. Geophys. Res., 112, D09117, doi:10.1029/2006JD007505
47) Gupta, P., S.A. Christopher, J. Wang, R. Gehrig, Y.C. Lee, N. Kumar, Satellite Remote Sensing of Particulate Matter and Air Quality over Global Cities, Atmospheric
Environment, 40, 5880-5892, 2006. {is one of the "Top-50 most cited articles" published in Atmospheric Environment January 2006 - February 2011}.
46) Christopher, S. A., J. Zhang, Y. J. Kaufman, and L. A. Remer (2006), Satellite-based assessment of top of atmosphere anthropogenic aerosol radiative forcing over cloud-free oceans, Geophys. Res. Lett., 33, L15816, doi:10.1029/2005GL025535.
45) Wang, J., S. A. Christopher, U. S. Nair, J. S. Reid, E. M. Prins, J. Szykman, and J. L. Hand (2006), Mesoscale modeling of Central American smoke transport to the United States: 1.
“Top-down” assessment of emission strength and diurnal variation impacts, J. Geophys. Res., 111, D05S17, doi:10.1029/2005JD006416
44) Wang, J., and S. A. Christopher (2006), Mesoscale modeling of Central American smoke transport to the United States: 2. Smoke radiative impact on regional surface energy budget and boundary layer evolution, J. Geophys. Res., 111, D14S92, doi:10.1029/2005JD006720.
43) H. Yu, Y. J. Kaufman, M. Chin, G. Feingold, L. A. Remer, T. L. Anderson, Y. Balkanski, N. Bellouin, O. Boucher, S. A. Christopher, P. DeCola, R. Kahn, D. Koch, N. Loeb,
M. S. Reddy, M. Schulz, T. Takemura, M. Zhou, A review of measurement-based assessment of aerosol direct radiative ehect and forcing, Atmos. Chem. Phys. 6, 613-666, 2006.
42) Zhang, J., S.A. Christopher, L.A. Remer and Y.J. Kaufman, Shortwave Aerosol CloudFree Radiative Forcing from Terra, I: Angular Models for Aerosols, J. Geophysical Research-Atmospheres, D10, S23, doi:10.1029/2004jd005008, 2005.
41) Zhang, J., S.A. Christopher, L.A. Remer and Y.J. Kaufman, Shortwave Aerosol CloudFree Radiative Forcing from Terra, II: Global and Seasonal Distributions, J. Geophysical Research-Atmospheres, D10, S24, doi:10.1029/2004jd005009, 2005.
40) Ramachandran, R., S. A. Christopher, S. Mova, X. Li, H. Conover, K. Keiser, S. Graves, Richard McNider, Earth Science Markup Language: A Solution to Address Data Format Heterogeneity Problems in Atmospheric Sciences, Bulletin of American Meteorological Society, 86(6), 791-794.,2005.
39) Anderson, T.L., R.J., Charlson, N. Bellouin, O. Boucher, M. Chin, S.A. Christopher, H.J. Haywood, Y.J. Kaufman, S. Kinne, J. Ogren, L.A. Remer, T. Takemura, D. Tanre, O. Torres, C.R.Trepte, B.A. Wielicki, D. Winker, H. Yu, A-Train strategy for quantifying direct aerosol forcing of climate: Step-wise development of an observational basis for aerosol optical depth, aerosol forcing ehiciency, and aerosol anthropogenic fraction, Bulletin of American Meteorological Society, 2005, 1795-1809.
38) Christopher, S. A., and J. Zhang (2004), Cloud-free shortwave aerosol radiative ehect over oceans: Strategies for identifying anthropogenic forcing from Terra satellite measurements, Geophys. Res. Lett., 31, L18101, doi:10.1029/2004GL020510.
37) Christopher, S. A. and J. Wang (2004), Intercomparison between MISR and Sun photometer AOT in Dust Source Regions over China: Implication for satellite retrievals and radiative forcing calculations, Tellus B, 56(5), 451-456
36) Wang, J., U. Nair, and S.A. Christopher (2004), GOES-8 Aerosol Optical Thickness Assimilation in a Mesoscale Model: Online Integration of Aerosol Radiative Ehects, J. Geophysical Research-Atmospheres, Vol. 109, No. D23, D23203 04
35) Reid, J. S., E. M. Prins, D. L. Westphal, C. C. Schmidt, K. A. Richardson, S. A. Christopher, T. F. Eck, E. A. Reid, C. A. Curtis, and J. P. Hohman (2004), Real-time monitoring of South American smoke particle emissions and transport using a coupled remote sensing/box-model approach, Geophys. Res. Lett., 31, L06107, doi:10.1029/2003GL018845.
34) J. Wang, J., X. Xia, P. Wang, and S. A. Christopher (2004), Diurnal variability of dust aerosol optical thickness and Angstr?m exponent over dust source regions in China, Geophys. Res. Lett., 31, L08107, doi:10.1029/2004GL019580.
33) Jehrey S. Reid, Thomas F. Eck, S. A. Christopher, Ralf Koppmann, Oleg Dubovik, Daniel P. Eleuterio, Brent N. Holben, Elizabeth A. Reid, Jianglong Zhang, A Review of Biomass
Burning Emissions Part III: Intensive Optical Properties of Biomass Burning Particles, Atmospheric Chemistry and Physics Discussions, Vol. 4, pp 5201-5260, 8-92004, Zhang, J., (2004), Satellite Remote Sensing of Aerosol Radiative Forcing over Global Oceans, Ph.D. dissertation, University of Alabama in Huntsville, Advisor, Sundar A.
Christopher, -2113 KB). - Dissertation
32) Wang, J., X. Liu, S. A. Christopher, J. S. Reid, E. Reid, and H. Maring, The ehects of nonsphericity on geostationary satellite retrievals of dust aerosols, Geophys. Res. Lett., 30(24), 2293, doi:10.1029/2003GL018697, 2003
31) Zhang, J., and S.A. Christopher, Longwave Radiative Forcing of Dust Aerosols over the Saharan Desert estimated from MODIS, MISR, and CERES observations from Terra, Geophysical Research Letters, 30(23), doi:10.1029/2003GL018479 , 2003
30) Wang, J., and S. A. Christopher, Intercomparison between satellite-derived aerosol optical thickness and PM2.5 mass: Implications for air quality studies, Geophys. Res. Lett., 30(21), 2095, doi:10.1029/2003GL018174, 2003
29) Wang, J., S A. Christopher, F. Brechtel, J. Kim, B. Schmid, J. Redemann, P. B. Russell, Patricia Quinn and B. N. Holben, Geostationary Satellite Retrievals of Aerosol Optical Thickness during ACE-Asia, J. Geophysical Research, Vol. 108, No. D23, 8657, 10.1029/2003JD003580, 30 August 2003.
28) Wang, J; Christopher, S. A.; Reid, J.S.; Maring, H.; Savoie, D.; Holben, B.N.; Livingston, J. M.; Russell, P. B.; Yang, S-K., GOES 8 retrieval of dust aerosol optical thickness over the
Atlantic Ocean during PRIDE, J. Geophys. Res. Vol. 108, No. D19, 8595, 10.1029/2002JD002494,
27) Christopher, S. A.,., J. Wang, Q. Ji and S-C. Tsay, Estimation of Shortwave Dust Aerosol Radiative forcing during PRIDE, J. Geophys. Res., 108(D19), 8956, doi:10.1029/2002JD002787, 2003,
26) Reid, J. S., D. L. Westphal, J. M. Livingston, H. H. Jonsson, J. E. Kinney, E. J. Welton, Smirnov, M. Meier, D. L. Savoie, H. B. Maring, S.C. Tsay, S. A. Christopher, and D. P. Eleuterio, and E. A. Reid. Measurements of Saharan dust by airborne and ground-based remote sensing methods during the Puerto Rico Dust Experiment (PRIDE), J. Geophys. Res.,
108(D19), 8593, doi:10.1029/2002JD002485, 2003
25) Livingston, J.M., J. Redemann, J. S. Reid, P. B. Russell, B. Schmid, D. Allen, O. Torres, R. C. Levy, L. A. Remer, B. N. Holben, A. Smirnov, O. Dubovik, E. J. Welton, J. Campbell, R. Kahn, S. A. Christopher, J. Wang., Airborne sunphotometer measurements of aerosol optical depth and columnar water vapor during the Puerto Rico Dust Experiment, and comparison with land, aircraft, and satellite measurements, J. Geophys. Res. 2003, Vol. 108, No. D19, 8588, 10.1029/2002JD002520,
24) Liu, X,, Wang, J, and S. A. Christopher, 2003: Shortwave direct radiative forcing of dust aerosols over the Atlantic Ocean. Int. J. Rem. Sensing, 24(24), 5147-5160,
23) Christopher, S. A., and J. Zhang, 2002: Shortwave aerosol radiative forcing from MODIS and CERES observations over the oceans. Geophysical Research Letters, 29(18), 1859 - doi: 10.1029/2002GL014803 -18 September 2002,
22) Christopher, S. A., J. Zhang, B. N. Holben, and S-K. Yang: GOES-8 and NOAA-14 AVHRR Retrieval of Smoke Aerosol Optical Thickness during SCAR-B, Int. J. Remote Sensing, 23,(22), 4931-4944.
21) Christopher, S. A., and J. Zhang, Daytime variation of shortwave direct radiative forcing of biomass burning aerosols from GOES 8 imager. J. Atmos. Sci., 59(2), 681-691, 2002.
20) Greenwald, T. J., and S. A. Christopher, Ehect of cold clouds on Satellite Measurements near 183 GHZ. J. Geophys. Res, 107, 101029-
19) Zhang, J., S. A. Christopher, and B. Holben, Intercomparison of aerosol optical thickness derived from GOES-8 Imager and Ground-Based Sun Photometers, J.
Geophysical Res., 106, 7387-7398, 2001
18) Chan, C. Y.; Chan, L. Y. ; Zheng, Y. G. ; Harris, J. M. ; Oltmans, S. J. ; Christopher, S,Ehects of 1997 Indonesian forest fires on tropospheric ozone enhancement, radiative forcing, and temperature change over the Hong Kong region, J. Geophys. Res., 106, 1487514886, 2001
17) Christopher, S. A.,., X. Li, R.M. Welch, P.V. Hobbs, J.S. Reid, and T. F. Eck. Estimation of Downward and top-of-atmosphere Shortwave Irradiances in Biomass Burning Regions during SCAR-B. J. Appl. Meteorology, 39, 1742-1753, 2000.
16) Li, X., S.A. Christopher, J. Chou, and R.M. Welch, Estimation of shortwave direct radiative forcing of biomass burning aerosols using angular dependence models. J. Appl. Meteor., 39, 2278-2291, 2000.
15) Greenwald, T. J., and S. A. Christopher, The GOES-IM Imagers: New Tools for studying the microphysical properties of boundary layers clouds. Bulletin of Amer. Meteorol. Soc,
81, 2607-2620, 2000.
14) Christopher, S. A.,., J. Chou, J. Zhang, X. Li and R.M. Welch, Shortwave Direct Radiative Forcing of Biomass Burning Aerosols Estimated from VIRS and CERES. Geophys. Res.
Letters, 27,2197-2000, 2000.
13) L. Y. Chan, C. Y. Chan, S.A. Christopher, H. Y. Liu, S. J. Oltmans, and J. M. Harris, A Case Study on the Biomass Burning in Southeast Asia and Enhancement of Tropospheric Ozone over Hong Kong, Geophys. Res. Letters, 27,1479-1482, 2000.
12) Reid, J.S., T. Eck, S.A. Christopher, B. Holben, and P. Hobbs, Use of the Angstrom Exponent to Estimate the Variability of Optical and Physical Properties of Aging Smoke
Particles in Brazil, J. Geophys. Res. 104 27,473-27490,1999.
11) Greenwald T.J., and S.A. Christopher, Daytime variation of Marine Stratocumulus Properties as observed from Geostationary Satellite, Geophys. Res. Lett., 26, 17231726,1999.
10) Greenwald, T.J., Christopher, S. A.,., J. Chou, and J. Liljegren, Intercomparison of Cloud Liquid Water Path Derived From the GOES-9 Imager and Ground Based Microwave Radiometers, J. Geophys. Res, 104, 9251-9260, 1999.
9) Kaufman, Y.J., P. V. Hobbs, V.W.J.H. Kirchoh, P. Artaxo, L.A. Remer, B.N. Holben, M.D. Ki ng, E.M. Prins, D.E. Ward, K.M. Longo, L. F. Mattos, C.A. Nobre, J.D. Spinhirne, Q. Ji, A.M. Thompson, J.F. Gleason, S.A. Christopher, and S.C. Tsay. The Smoke, Clouds and Radiation Experiment in Brazil (SCAR-B). J. Geophys. Res., 103, D24, 31, 783-31808, 1998.
8) Christopher, S. A.,., M. Wang, T.A. Berendes, R. M. Welch, and S.K. Yang, the 1985 biomass burning season in South America: Satellite Remote Sensing of fires, smoke, and regional radiative energy budgets. J. Appl. Meteor., 37, 661-678, 1998. (July, 1998)
7) Christopher, S. A.,., D. Kliche, V.S. Connors, and R.M. Welch, Satellite investigations of fires, smoke and Carbon Monoxide during the April 1994 MAPS missions, J. Geophys. Res.,
103(D15), 19237-19336, 1998.
6) Weiss, J.M., S.A. Christopher, and R.M. Welch, Automated contrail detection and segmentation. IEEE Transactions on Geoscience and Engineering, 36(5), 1609-1619, 1998.
5) Greenwald, T.J., S.A. Christopher, and J. Chou, Cloud liquid water path comparisons from passive microwave and solar reflectance satellite measurements: Assessment of sub-field-of-view cloud ehects in microwave retrievals. J. Geophys. Res. 102, D16, 1958519597, 1997.
4) Christopher, S. A.,., and J. Chou, The potential of the AVHRR GAC land Pathfinder data for aerosol and earth radiation budget studies. Int. J. Rem. Sensing, 18(12), 2657-2676, 1997
3) Christopher, S. A.,, D.V. Kiche, and R.M. Welch, AVHRR and ERBE investigations of biomass burning in the tropics, to appear in Global Biomass Burning, Ed, J.S. Levine, MIT Press, 1996.
2) Christopher, S. A., D.V. Kliche, J. Chou, and R.M. Welch, First Estimates of the Radiative Forcing of Aerosols Generated from Biomass burning Using Satellite Data. J. Geophys. Res., 101, D16, 21265-21273,1996
1) T. J. Greenwald, G.L. Stephens, S.A. Christopher and T.H. Vonder Haar, Observations of the Global Characteristics and Regional Radiative Ehects of Marine Cloud Liquid Water, J.
Climate, 8(12), 2928-2946,1995.
0) Musil, D. J., S. A. Christopher, R. A. Deola, and P. L. Smith, Some Interiro Observations of South Eastern Montana hailstorms, J. Appl. Meteor., 30, 1596-1612,1991.
Christopher, S. A.,., Cloud radiative forcing in the tropics, Ph.D. Dissertation, available from UMI press, 168 pp, 1995.