Spatial Sciences Institute Administration – Leadership
John P. Wilson
Founding Director
GIS • spatial analysis • environmental modeling • environment and human health •
geodesign education
jpwilson@usc.edu / 213.740.1908 / AHF B55F
Susan H. Kamei
Strategic Advisor
university and nonprofit administration • online education • civic engagement
• Japanese American incarceration
kamei@usc.edu / 213.740.1375 / AHF B55E
Darren M. Ruddell
Director of Graduate Studies
geospatial technologies • climate and society • human-environment interactions • geodesign
• urban sustainability
druddell@usc.edu / 213.740.0521 / AHF 57F
Diana Ter-Ghazaryan
Director of Undergraduate Studies
geospatial data visualization • human security and geospatial intelligence • digital humanities • human geography
terghaza@usc.edu / 213.821.1190 / AHF B55K
Katherine A. Lester
Director of Masters Programs
GIS • suicide • mental illness • race and ethnicity
lesterk@usc.edu / 213.821.0672 / AHF B55A
Spatial Sciences Institute Administration – Staff
Alicia Adiwidjaja 
Geospatial Database Analyst I
adiwidja@usc.edu / AHF B55
Dairon Caro
Academic Program Administrator
recruitment administration • admissions administration • academic
program management
dcaro@usc.edu / 213.740.0739 / AHF B57E
Avery Fratto
Geospatial Data Analyst I
afratto@usc.edu / AHF B55
Hilary Johnson
Administrative Assistant
office management • event management • fiscal administrative support
hilaryj@usc.edu / 213.740.5910 / AHF B55
Jeff Liwag
Distance Education Operations Specialist
remote learning operations
jliwag@usc.edu / 213.821.3253 / AHF 145
Beau MacDonald
GIS Project Administrator
GIS • cartography • design • research
beaumacd@usc.edu / 213.740.7164 / AHF 145D
Myron Medalla
Systems Administrator
IT systems and support
mmedalla@usc.edu / 213.740.5085 / AHF B56B
Alyssa Ng
Geospatial Data Analyst I
alyssang@usc.edu / AHF B55
Monica Pan
Academic Programs Director
student services • academic advising • student affairs
monicap@usc.edu / 213.740.8298/ AHF B56B
Stephanie Tran
Senior Analyst, Budget Management
fiscal administration • grant administration • ArcGIS licenses
transtep@usc.edu / 213.821.2193 / AHF B55H
Spatial Sciences Institute Administration – Postdoctoral Scholar
Ayda Kianmehr
microclimate modeling • machine learning • statistical analysis • policy content analysis • environmental health impacts
kianmehr@usc.edu / 213.764.7947 / AHF B57E
Student Workers (Fall 2024)
Christopher Kim
Wendy Ma
Matilda McLaren
Kevin Sohn
Giovanni Suarez
Baiming Zhang