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ACD Computing

ACD Computer Services Group




Shared Equipment

Visiting ACD?

For Sysadmins...

Babbage Differential Engine

Welcome to ACD's Computer Services Group.  We provide a general purpose computing environment consisting of divisional servers, project servers, and a networking/printing infrastructure that serves MacOS, Linux, and Windows systems.

While here, our office doors are open.  We're here to assist with planning, purchasing, troubleshooting, networking, account administration, security/privacy, and just about any computing related matter. 

For projects, troubleshooting, or other tasks, we maintain a work request system.  Its email is  This is always the prefered way to contact us by email.

The first link to the right take you to our account/password request form.  Passwords in ACD are generated and distributed every 6 months but may be changed at any time using the form. 

The other links to the right take you to our trouble-ticket system, or to important current information regarding our facilities and services.

Timothy Fredrick

Timothy Fredrick



  • Head of the Computer Systems Support Group
  • General ACD systems support
  • CSAC representative
  • NESL Information Technology
  • CFM - Computer Facilities Management Commitee
  • Mass Store Advisory Committee
Garth D'Attilo

Garth D'Attilo



  • General ACD Systems support
  • NCAB representative
  • ACCIS representative
Carl Drews

Carl Drews



  • NESL/ACD web systems support
  • NCAR Web Advisory Group
  • NESL/ACD software services and support



Accounts & Passwords

Request new Password


Support Information


CISL Support

ACD Trouble Ticket


Scheduled Downtime

CISL resource status




ACD | Atmospheric Chemistry Division