ACD's Visitor Program


The Atmospheric Chemistry Division is directing its research efforts at two grand challenges that confront society and where atmospheric chemical processes play a crucial role, namely Regional and Global Air Quality and Chemistry in the Climate System. Through the Division's Visitor Program, we expect to enhance scientific and educational contacts between ACD and national and international members of the atmospheric chemistry community. Opportunities are available for visits of varying duration, from 1 day to several years. Funding support may be available for some visits.

The benefits of an active visitor program are many. Visitors come from all over the globe, from universities, government agencies both foreign and domestic, and private industry, bringing a great diversity of ideas and enhancing our status as scientific and educational leaders. ACD hosts several postdocs each year. Many students visit ACD to increase their expertise and to complete their projects.

In 2006, ACD hosted four SOARS students (Significant Opportunities in Atmospheric Research and Science) and eleven postdoctoral fellows. For more information on SOARS and ACD, please visit For more information on becoming a postdoctoral fellow at ACD, please visit

Currently, the division hosts three Affiliate Scientists, Elliot Atlas from the University of Miami, Dieter Ehhalt from the University of Cologne, and Aaron Goldman from the University of Denver. For more information on the Affiliate Scientist appointment policy and procedure, see Other opportunities for visiting scientists in atmospheric science within UCAR and NCAR can be found on the UCAR opportunities page (link A comprehensive list of visitors to UCAR can be found here:


Coordination of visits to ACD is handled by the visitor's host and the Division's administrative staff. The visitor's host must be an ACD staff member. The administrative staff is available to answer questions about the program and to facilitate visits by handling all administrative needs. Prospective visitors should work with their hosts to determine the nature and duration of their visit. The administrative group will work with the visitor and visitor's host to handle the details.

The ACD Visitor Process

  • Visitors to ACD must have a Division host. This host agrees to collaborate, schedule appointments or seminars, be a mentor, or direct the research or project involved. All requests for visitors must come from the host’s Project Leader. Before approval is given, space, computer, and other intangible resources must be considered. All visits requiring financial support must be approved by the Division Director.
  • Financial support from the division can be arranged in different ways. Depending on the nature of the visit, reimbursement for travel expenses may be considered, and/or a per diem. Salaried positions are advertised and filled through the regular competitive process.
  • The host determines, with his/her Project Leader, if there is funding available to support the visitor. A request form is completed, which includes information about who the visitor will be working with and on what project. The Division administration will coordinate the visit.
  • If this is to be a salaried position, the competitive hiring process is initiated by the Division and completed through the Human Resources Department.
  • Division administration proceeds with arrangements for the visit.
For more information, contact Lara Cervantes, ACD Administrator, . Also, please visit UCAR Community Opportunities (direct link: for more information on other types of visitor appointments.