Management Team

Guy Seeley — President 

Dr. Guy Seeley is president of Atmospheric and Environmental Research (AER), a leading science-based knowledge company addressing the contemporary challenges of monitoring, modeling, and understanding the complete natural environment. He is responsible for the company’s performance and for the execution of science and technology projects, ranging from basic research to mission critical system development for government, insurance, financial, and energy sector clients.

Dr. Seeley served in other leadership positions at AER and ISO/Verisk before becoming AER’s president in December 2015. During his more than 20-year career, he has had responsibility for a number of state-of- the-art weather and remote sensing programs, products, and services reaching government and commercial markets.

Earlier in his career, Dr. Seeley worked extensively with military pilots and research laboratories to produce infrared mission planning decision aid tools to reduce risk and improve mission performance. He was responsible for the development, validation, and rapid transition to combat operations of highly effective new mission planning technologies for the F-117 and other aircraft.

Dr. Seeley holds a Ph.D. in chemistry and a Bachelor of Arts degree in chemistry from Boston University.


Ned Snell, Ph.D. — Executive Vice President and Senior Vice President — Advanced Science and Technology Division

Dr. Snell is AER’s Executive Vice President and also leads the Advanced Science and Technology Division.  From 2012 to 2020 he served as the Program Manager for AER's GOES-R effort, working on the nation's next generation geo-synchronous weather and environment satellite.  Dr. Snell is experienced in all aspects of both theoretical and experimental remote sensing, including extensive infrared and ultraviolet radiative transfer model and retrieval algorithm development. He led the development of the infrared ozone retrieval algorithm for the infrared algorithms of the Ozone Mapping and Profiling Suite (OMPS) and served as AER Project Manager for algorithm development for the Cross-Track Infrared and Microwave Sounder Suite (CrIMSS), part of what is now the Joint Polar Satellite System (JPSS).

Dr. Snell is a member of the Society of Photo-Optical Instrumentation Engineers (SPIE), the American Geophysical Union (AGU), and the American Institute of Aeronautics and Astronautics (AIAA). Prior to joining AER in 1994, he studied and received a PhD in Atmospheric and Space Sciences from the University of Michigan and an AB in Geophysics from the University of Chicago.


Matthew Alvarado, Ph.D. — Principal Scientist and Vice President – Research and Development Division

Dr. Alvarado leads AER's Research and Development Division, responsible for scientific research and technology development in the areas of atmospheric composition, air quality, radiation / radiative transfer, satellite remote sensing and retrievals, numerical weather prediction, data assimilation, physical oceanography, climate science, cloud microphysics, and seasonal forecasting. The R&D Division also develops decision aids for government, non-profit, and commercial customers and supports government environmental R&D and operations. Dr. Alvarado’s research expertise includes atmospheric chemistry, air quality, and radiative transfer modeling. He has led numerous successful research efforts as a principal investigator for government, non-profit, and industry clients. He has authored and co-authored dozens of articles in peer-reviewed scientific journals and over 100 conference presentations. Dr. Alvarado is a member of the American Geophysical Union, the American Meteorological Society, the American Chemical Society, and the American Association for Aerosol Research. He earned his Ph.D. in climate physics and chemistry and his B.S. in chemical engineering from the Massachusetts Institute of Technology (MIT).


Charles Sarkisian — Vice President — Target Recognition and Advanced Exploitation Division

Charles Sarkisian is the Division Manager of the Target Recognition and Advanced Exploitation (TRAX) Division at AER.  He possesses over thirty-five years of remote sensing industry experience in the atmospheric, oceanographic and terrestrial environments.  With an education and early professional positions in the atmospheric sciences, more than fifteen years ago he changed his focus to the development of target recognition approaches supporting the defense and intelligence communities.  Prior to establishing the TRAX group at AER he led the Object and Target Recognition Section at BAE Systems where he managed all programs within the section, which included programs with AFRL, DARPA and the intelligence community.  His professional experience also includes that of Program Manager at Goodrich Corporation within the U-2 Business Unit, managing programs with the National Air and Space Intelligence Center (NASIC) and the 330th C2ISR Sustainment Group in support of the SYERS-2 airborne sensor.  He began his contributions to the defense community at The Analytic Sciences Corporation (TASC), where he was a member of the technical staff.  In these positions he has managed the development of target recognition approaches employing electro-optical (EO), infrared (IR) and synthetic aperture radar (SAR) data collected by airborne and space-based platforms.  In addition to managing the TRAX Division, Mr. Sarkisian serves in the position of Chief Product Strategy Officer at AER.


Dave Hogan — Senior Vice President, Strategic Business Development

With over 35 years of advanced science and system design and development experience, Mr. Hogan’s career focus has been on the development of advanced solutions to challenging environmental and remote sensing problems including operational system transition for commercial, government and military customers. He managed AER's GOES-R and NPOESS programs where he developed AER's integrated science and software engineering processes for implementing large-scale remote sensing software systems. Mr. Hogan received a BS in Physical Sciences and an MS in Meteorology from the University of Maryland.


Scott Zaccheo, Ph.D. — Senior Corporate Fellow — Engineering and Development

Dr. Zaccheo is an expert in image processing and systems engineering and has spent the last 15 years applying engineering principles to the process of acquiring and analyzing scientific data.  At AER, Dr. Zaccheo has been the primary architect of numerous scientific systems, including an interactive suite of analysis tools designed to assess the performance of retrieval algorithms associated with heritage and next-generation, earth-observing environmental sensors.  He has also been a member of a research team responsible for the design and analysis of inverse methods for retrieving atmospheric moisture and temperature profiles from microwave and infrared sounder data.  Prior to joining AER, Dr. Zaccheo worked at Lincoln Laboratory on characterization of infrared clutter and the assessment of its impact on detection and estimation techniques.  He has been a contributing member of the Solar and Heliospheric Observatory (SOHO) and Hubble Space Telescope (HST) algorithm teams.  He has authored or coauthored more than a dozen scientific papers and holds three degrees in Electrical Engineering, including a PhD from Tufts University.


Richard Quinn, Ph.D. — Principal Scientist and Vice President – Space Weather Division

Dr. Richard Quinn leads AER’s Space Weather Division in support of research and development and operationalization and commercialization of space weather related research. Coming from a PhD background in experimental and computational plasma physics, upon coming to AER in 2004, Dr. Quinn shifted his focus to development of computational models of the space environment and later to application of software engineering best practices to space environment product development, gradually moving into project and group management. Dr. Quinn has worked closely with the key AER Air Force Research Laboratory (AFRL) customer to identify critical requirements, extend knowledge of the geospace plasma environment, and bring essential personnel into projects under his guidance to better meet AFRL needs. The Space Weather Division currently consists of a strong mix of senior and mid-level staff scientists, software engineers, scientific programmers and IT service professionals, who team with a small cadre of key external consultants, subcontractors and business partners. Key areas of expertise include the near-Earth trapped and untrapped radiation environment modeling and impacts, Earth geomagnetic field, solar wind, solar proton event forecasting, assimilative ionosphere modeling, GPS and RF communication impacts and geomagnetically induced currents in electrical power grids. The division also develops and provides full software life-cycle support to AER's commercial Space Environment and Effects Toolkit (STK SEET) for AGI's popular commercial STK software. Previously, after receiving his PhD in physics from The University of Iowa, Dr. Quinn worked for 3+ years at the Max Planck Institute in Garching, Germany, eventually leading the early development phase of a multi-national ISS micro-gravity experiment. During his scientific career, Dr. Quinn has prepared and presented over 60 talks, posters and refereed journal articles and led, written or co-written numerous successful proposals.


Jenny Zhu, Sr. Vice President, Finance & Contracts Division, Controller

Ms. Zhu leads the Finance and Contracts division at AER.  Ms. Zhu has been with Atmospheric and Environmental Research, Inc. since 1997. She had held various positions in AER Finance which include Staff Accountant, Financial Analyst, and Contract Administrator before she was promoted to the Controller and Contracts Manager in 2003. Prior to joining AER, Ms. Zhu worked at Clemens CPA firm where she was a staff member on the accounting and audit team.  Ms. Zhu received her M.S. in Accounting from Johnson & Wales University.  Ms. Zhu is a Certified Public Accountant and a member of the Massachusetts Society of Certified Public Accountants (MSCPA) and the American Institute of Certified Public Accountants (AICPA).