Skip Nav
Dr. Tim Logan
Tim Logan
Phone:
(979) 845-2004
Email:
tlogan52@tamu.edu
Office:
Eller O&M 1009A
Address:

Texas A&M University O&M Building
Room 1009A MS 3150 
College Station, Texas 77843


Degrees:

B.A. IN ENVIRONMENTAL SCIENCE FROM UNIVERSITY OF VIRGINIA

M.S. IN ATMOSPHERIC SCIENCE FROM UNIVERSITY OF NORTH DAKOTA

PH. D. IN ATMOSPHERIC SCIENCE FROM UNIVERSITY OF NORTH DAKOTA

Awards:

2015: TAMU Atmospheric Science Department Outstanding Faculty Teaching Award

2015: Hubei Province, China Scientific Paper Award, 3rd Place

2014: American Meteorological Society Best Student Poster Award

2011: National Science Foundation East Asian and Pacific Summer Institutes (EAPSI) in China Fellowship

2009: North Dakota Space Grant Consortium Fellowship

Courses:

ATMO 201: Weather & Climate

ATMO 291, ATMO 484, and ATMO 491: Undergraduate and graduate interdisciplinary research


Tim Logan

Instructional Assistant Professor

Research Interests

Director of the Houston Lightning Mapping Array (HLMA) Network. The HLMA provides a service to the surrounding community by providing timely and reliable lightning data to make informed decisions in regards to public safety interests while providing quality data for collaborative, interdisciplinary research within the university community and for K-12 STEM projects. As part of this effort, I develop and test sferics detectors under various modes of deep convection.

My current research deals with aerosol impacts on low-level cloud development which is funded by a NSF Grant (2017-2020). As part of the grant, I develop micro-gadgets capable of measuring temperature, pressure, and aerosol optical depth. As part of the Texas A&M University Tier One Proposal (TOPS) grant (2018-2021), I study aerosol impacts on boundary layer clouds using 3-D images derived from a portable micropulse LIDAR.

My primary research goals are to (1) improve upon earlier aerosol classification methods by using theoretical radiative transfer calculations and in situ measurements (e.g., laser spectroscopy), (2) analyze the long-term aerosol impacts on low-level and deep convective cloud development, and (3) discern the possible impacts of biomass burning smoke aerosols on severe weather and lightning.

Selected Publications

Logan, T., B. Xi, X. Dong, R. Obrecht, Z. Li, and M. Cribb (2010), A Study of Asian Dust Plumes Using Satellite, Surface, and Aircraft Measurements during the INTEX-B Field Experiment, J. Geophy. Res., 115, D00K25, doi:10.1029/2010JD014134.

Logan, T., B. Xi, X. Dong, Z. Li, and M. Cribb (2013), Classification and Investigation of Asian Aerosol Properties, Atmos. Chem. Phys., 13, 2253-2265, www.atmos-chem-phys.net/13/2253/2013/doi:10.5194/acp-13-2253-2013.

Logan, T., B. Xi, and X. Dong (2013), A Comparison of the Mineral Dust Absorptive Properties from Two Asian Dust Events, Atmosphere, 4(1), 1-16; doi:10.3390/atmos4010001.

Mao, F., W. Gong, and T. Logan (2013), Linear Segmentation Algorithm for Detecting Layer Boundary with LIDAR, Optics Express, 21(22), doi:10.1364/oe.21.026876.

Logan, T., B. Xi, and X. Dong (2014), Aerosol properties and their influences on marine boundary layer cloud condensation nuclei at the ARM mobile facility over the Azores, J. Geophys. Res., 119, doi:10.1002/2013JD021288.

Wang W., L. Sheng, X. Dong, W. Qu, J. Sun, H. Jin, and T. Logan (2016), Dust aerosol impact on the retrieval of cloud top height from satellite observations of CALIPSO, CloudSat and MODIS. J. Quant. Spectrosc. Radiat. Transfer, http://dx.doi.org/10.1016/j.jqsrt.2016.03.034.

Tian P., X. Cao, L. Zhang, N. Sun, L. Sun, T. Logan, J. Shi, Y. Wang, Y. Ji, Y. Lin, Z. Huang, T. Zhou, Y. Shi, and R. Zhang (2017), Seasonal and spatial variations in aerosol vertical distribution and optical properties over China from long-term satellite and ground-based remote sensing. Atmos. Chem. Phys., 17, 2509-2523, http://www.atmos-chem-phys.net/17/2509/2017/doi:10.5194/acp-17-2509-2017.

Logan, T., X. Dong, and B. Xi (2018), Aerosol properties and their impacts on surface CCN at the ARM Southern Great Plains site during the 2011 Midlatitude Continental Convective Clouds Experiment. Adv. Atmos. Sci., 35(2), 224–233, https://doi.org/10.1007/s00376-017-7033-2.

Logan, T. (2018), Anomalous Lightning Behavior during the 26-27 August 2007 Northern Great Plains Severe Weather Event. J. Geophys. Res. Atmos., 123, https://doi.org/10.1002/2017JD027750.

Li, R., G. Tang, J. Ding, T. Logan, S. D. Brooks, D. R. Collins, P. Yang and G. W. Kattawar (2018), Laboratory measurements of light scattering properties of kaolinite dust at 532 nm, Aerosol Sci. Tech., doi:10.1080/02786826.2018.1444729, 1-13.

Additional Information

Logan, T., X. Dong, and B. Xi (2018), Designing and Building Reliable, Low-cost Lightning Detection Equipment, 98th Annual American Meteorological Society Meeting, January 8, Austin, TX.

Logan, T., X. Dong, and B. Xi (2017), Lightning Behavior during the 26-27 August 2007 Northern Great Plains Severe Weather Event, 97th Annual American Meteorological Society Meeting, January 21, Seattle, WA.

Logan, T., X. Dong, and B. Xi (2016), Aerosol properties and their impacts on surface cloud condensation nuclei at the ARM SGP site during MC3E, Poster, AGU Fall Meeting, San Francisco, CA.

Logan, T., X. Dong, B. Xi, J. Wang, and J. Tian (2016), Biomass Smoke Influences on Deep Convection during the 2011 Midlatitude Continental Convective Clouds Experiment (MC3E), Poster, 96th Annual American Meteorological Society Meeting: Mario Molina Symposium, January 12, New Orleans, LA.

Logan, T., B. Xi, X. Dong (2014), Aerosol physical and chemical properties and their relationship with CCN at the AMF-Azores site, Poster, 94th Annual American Meteorological Society Meeting: 6th Symposium on Aerosol-Cloud-Climate Interactions, February 2-3, Atlanta, GA.

Logan, T., B. Xi, X. Dong (2013), Classification and Investigation of Asian Aerosol Properties, 6th International Conference on Atmosphere, Ocean, and Climate Change, Oral Presentation, August 19-21, Hong Kong.

Logan, T., B. Xi, X. Dong (2013), Investigation of the variations of marine and continental aerosols, clouds, and their interactions with meteorological patterns, 6th International Conference on Atmosphere, Ocean, and Climate Change, Poster Presentation, August 19-21, Hong Kong.

Logan, T., B. Xi, X. Dong, A. Kennedy, K. Giannecchini (2013), Aerosol Transport and Optical Properties of the 2012 North American Wildfires, 93rd Annual American Meteorological Society Meeting: 5th Symposium on Aerosol-Cloud-Climate Interactions, Oral Presentation, January 6-10, Austin, TX.

Logan, T., X. Dong, B. Xi, Z. Li, M. Cribb, W. Gong (2012), Absorption Spectral Variation to Illustrate Regional and Seasonal Asian Aerosol Variation, 92nd Annual American Meteorological Society Meeting: 14th Conference on Atmospheric Chemistry, Oral Presentation, January 23-27, New Orleans, LA.

Logan, T., X. Dong, B. Xi, Z. Li, M. Cribb (2011), A Modified Aerosol Classification Scheme Derived from Multi-platform Observation Data, Oral Presentation, 2011 International Workshop on Aerosol-Cloud-Precipitation Reactions, June 22-25, Nanjing, China.

Logan, T., X. Dong, B. Xi, Z. Li (2010), “A Modified Aerosol Classification Scheme Using AERONET-Xianghe and AMF-Shouxian Data”, Poster, AGU Fall Meeting, December 13-17, San Francisco, CA.

Logan, T., X. Dong, B. Xi (2009), “Investigation of the Chemical and Physical Properties of Asian Dust and Pollution Transpacific Transport during the INTEX-B Field Campaign” (M.S. Thesis), Poster, Gordon Research Conference on Radiation and Climate, July 3-10, New London, NH.

Logan, T., X. Dong, B. Xi (2008), “Tracking of Aerosol and Chemical Pollutants From Asia to the United States Across the Pacific Ocean:  A Validation of an in Depth Case Study Using Data From the April-May 2006 INTEX-B Experiment”, Poster, AGU Fall Meeting, December 15-19, San Francisco, CA.

 

Geosciences TAMU Logo

Aggies can change the world. Geoscientists lead the way.