Profile for Tamas Varnai

Affiliation: UMBC-JCET
Contact: E-mail
Office Phone: 301-614-6408
Fax: 301-614-6307

Publications

Marshak, A., K.F. Evans, T. Varnai, and G. Wen (2014). Extending 3D near-­cloud corrections from shorter to longer wavelengths J. Quant. Spec. Rad. Trans, (Submitted).

Varnai, T., and A. Marshak (2014). Near-cloud aerosol properties from the 1-km resolution MODIS ocean product J. Geophy., Res.,-Atmos, (In Press).

Varnai, T., A. Marshak, and W. Yang (2013). Multi-satellite aerosol observations in the vicinity of clouds Atmos. Chem. Phys, 13, 3899-3908
doi:10.5194/acp-13-3899-2013

Wen, G., A. Marshak, R.C. Levy, L.A. Remer, N. G. Loeb, T. Varnai, and R.F. Cahalan (2013). Improvement of MODIS Aerosol Retrievals Near Clouds J. Geophy., Res.,-Atmos, 118, 9168-9181
doi:10.1002/jgrd.50617

Yang, W., A. Marshak, A.B. Kostinski, and T. Varnai (2013). Shape-induced gravitational sorting of Saharan dust during transatlantic voyage: evidence from CALIOP lidar depolarization measurements Geophys. Res. Lett, 40(12), 3281-3286
DOI: 10.1002/grl.50603

Chiu, J., A. Marshak, C.H. Huang, T. Varnai, R. Hogan, D.M. Giles, B.N. Holben, E. OConnor, Y. Knyazikhin, and W.J. Wiscombe (2012). Cloud droplet size retrievals from zenith radiance measurements: examples from the Atmospheric Radiation Measurement Program and the Aerosol Robotic Network. Atmos. Chem. Phys., 12, 10313-10329.
doi:10.5194/acp-12-10313-2012

Gatebe, C.K., T. Varnai, R. Poudyal, C. Ichoku, and M.D. King (2012). Taking the Pulse of PyroCumulus Clouds. Atmos. Environ., 52, 121-130
doi:10.1016/j.atmosenv.2012.01.045

Pounder, N.L., R.J. Hogan, T. Varnai, A. Battaglia, and R.F. Cahalan (2012). A variational method to retrieve the extinction profile in liquid clouds using multiple field-of-view lidar. J. Appl. Meteor. Climatol, 51, 350-365
doi: http://dx.doi.org/10.1175/JAMC-D-10-05007.1

Varnai, T., and A. Marshak (2012). Analysis of co-located MODIS and CALIPSO observations near clouds Atmos. Meas. Tech, 5, 389-396
doi:10.5194/amt-5-389-2012

Yang, W., A. Marshak, T. Varnai, and Z. Liu (2012). Effect of CALIPSO cloud aerosol discrimination (CAD) confidence levels on observations of aerosol properties near clouds Atmospheric Research, 116, 131-141
http://dx.doi.org/10.1016/j.atmosres.2012.03.0

Yang, Weidong, A. Marshak, T. Varnai, O.V. Kalashnikova, and A.B. Kostinski (2012). CALIPSO observations of transatlantic dust: vertical stratification and effect of clouds Atmos. Chem. Phys, 12, 11339-11354
doi:10.5194/acp-12-11339-2012

Varnai T., and A. Marshak (2011). Global CALIPSO observations of aerosol changes near clouds Geosci. Remote Sens. Lett. 19-23, 8, Issue 1, 19-23
doi:10.1109/LGRS.2010.2049982

Yang Y., A. Marshak, S. Palm, T. Varnai, and W. Wiscombe (2011). Cloud Impact on Surface Altimetry from a Spaceborne 532nm Micro-Pulse Photon Counting Lidar: System Modeling for Cloudy and Clear Atmospheres IEEE Trans. Geos. Rem. Sens., 49(12), 4910-4919
doi: 10.1109/TGRS.2011.2153860

Yang, Y., A. Marshak, S. P. Palm, T. Varnai, and W. J. Wiscombe (2011). Cloud Impact on Surface Altimetry from a Spaceborne 532-nm Micropluse Photon-Counting Lidar: System Modeling for Cloudy and Clear Atmospheres Geoscience and Remote Sensing, IEEE Transactions, 49(12), 4910-4919
10.1109/TGRS.2011.2153860

Oreopoulos L., M.J. Wilson, and T. Varnai (2010). Implementation on Landsat Data of a Simple Cloud Mask Algorithm Developed for MODIS Land Bands IEEE Geosc. & Rem. Sens. Lett., 99, 597-601
doi:10.1109/LGRS.2010.2095409

Varnai, T., and A. Marshak (2010). Multiyear statistics of 2-D shortwave radiative effects at three ARM sites J. Atmos. Sci., 67, 3757-3762
doi: 10.1175/2010 JAS3506.1

Yang Y., A. Marshak, T. Varnai, W.J. Wiscombe, and P. Yang (2010). Uncertainties in ice sheet altimetry from a space-borne 1064 nm single channel lidar due to undetected thin clouds IEEE Trans. Geos. Rem.Sens., 48(1), 250-259
doi:10.1109/TGRS.2009.2028335

Varnai T., and A. Marshak (2009). MODIS observations of enhanced clear sky reflectance near clouds Geophys. Res. Lett., 36(L06807).
doi:10.1029/2008GL037089

Evans K. F., A. Marshak, and T. Varnai (2008). The Potential for Improved Boundary Layer Cloud Optical Depth Retrievals from the Multiple Directions of MISR J. Atmos. Sci., 65(10), 3179-3196
doi:10.1175/2008JAS2627.1

Varnai T., and A. Marshak (2007). View angle dependence of cloud optical thickness retrieved by MODIS J. Geophys. Res., 112, D06203.
10.1029/2005JD006912

Varnai T., and R.F. Cahalan (2007). Potential for airborne offbeam lidar measurements of snow and sea ice thickness J. Geophys. Res., 112, C12S90.
10.1029/2007JC004091

Marshak A., S. Platnick, T. Varnai, G. Wen, and R.F. Cahalan (2006). Impact of 3D radiative effects on satellite retrievals of cloud droplet sizes J. Geophys. Res., DO9207, 111.
10.1029/2005JD006686

Oreopoulos L., A. Marshak, R.F. Cahalan, T. Varnai, A. B. Davis, and A. Macke (2006). New Directions in the Radiative Transfer of Cloudy Atmospheres EOS, No. 5, 31 January 2006

Cahalan R.F., M. McGill, J. Kolasinski, T. Varnai, and K. Yetzer (2005). THOR — Cloud Thickness from Offbeam Lidar Returns J. Atmos. Ocean. Tech., 22(6), 605-627

Cahalan R.F., L. Oreopoulos, A. Marshak, K. F. Evans, A. Davis, R. Pincus, K. Yetzer, B. Mayer, R. Davies, T. Ackerman, H. Barker, E. Clothiaux, R. Ellingson, M. Garay, E. Kassianov, S. Kinne, A. Macke, OHirok W., P. Partain, S. Prigarin, A. Rublev, G. Stephens, F. Szczap, E. Takara, T. Varnai, G. Wen, and T. Zhuravleva (2005). The International Intercomparison of 3D Radiation Codes (I3RC): Bringing together the most advanced radiative transfer tools for cloudy atmospheres Bull. Amer. Meteor. Soc. (9), 86, 1275-1293

Varnai T., and A. Marshak (2003). A method for analyzing how various parts of clouds influence each other's brightness J. Geophys. Res. (D22), 4706, 108.
10.1029/2003JD003561

Varnai T., and A. Marshak (2002). Observations of three-dimensional radiative effects that influence MODIS cloud optical thickness retrievals J. Atmos. Sci., 59, 1607-1618

Varnai T., and A. Marshak (2002). Observations of three-dimensional radiative effects that influence satellite retrievals of cloud properties Quart. Jour. of Hungarian Meteor. Service (Idojaras), 106, 265-278

Varnai T., and A. Marshak (2001). Statistical analysis of the uncertainties in cloud optical depth retrievals caused by three-dimensional radiative effects J. Atmos. Sci., 58, 1540-1548