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Welcome to the CalGIS Conference, taking place in Sonoma County, California, April 14-16, 2025! This is where you review the comprehensive educational program for the conference and plan your agenda.

Registration, hotel details, and sponsorship opportunities are available here.
Venue: Salon I clear filter
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Wednesday, April 16
 

8:30am PDT

Standards, Open Data, and Cloud Transformation in GIS
Wednesday April 16, 2025 8:30am - 9:30am PDT
Salon I
This session focuses on geospatial data governance, open collaboration, and cloud-based GIS adoption. Topics include AEC geospatial standards for project consistency, Fresno County’s partnership with Overture Maps to enhance public data accessibility, and the transition of enterprise GIS to the cloud for improved scalability and efficiency. Presenters will discuss technical and organizational challenges, best practices, and real-world applications. Professionals will leave with insights into building interoperable systems, fostering cross-sector partnerships, and modernizing GIS infrastructure.

Setting the Standard: Developing Organizational Geospatial Standards
Roland Martin, Americas Region Geospatial & Earth Observation Skills Leader, Arup

Putting Fresno County on the Map: Partnering with the Overture Maps Foundation for Open Geospatial Data
Ryan Lopez, Senior IT Analyst, Fresno County Department of Public Works & Planning 

Migrating Enterprise GIS to Cloud
Udaya Bhasker Cheerala, Senior Geographic Information System Consultant, Infosys Limited
Speakers
avatar for Roland Martin

Roland Martin

Skills Leader, Arup
Roland Martin is a Senior Consultant for Arup Digital in Los Angeles. He has been responsible for all aspects of data creation, analysis, management, and visualization, for a wide range of projects and clients in different parts of the world.
avatar for Ryan Lopez

Ryan Lopez

Senior IT Analyst, Fresno County Public Works and Planning
Ryan Lopez is a seasoned GIS professional leading Fresno County Department of Public Works & Planning's geospatial initiatives, where he oversees data strategy, integration, and innovative mapping solutions. With over a decade of experience in public-sector GIS, Ryan Lopez has championed... Read More →
avatar for Udaya Bhasker Cheerala

Udaya Bhasker Cheerala

Senior Geographic Information System Consultant, Infosys Limited
20 years of experience in  Geographic Information Systems (GIS) and Information Technology (IT), spanning a wide range of roles, technologies, and project phases. Proficient in GIS principles, methodologies, and applications, with hands-on experience from diverse projects across... Read More →
Wednesday April 16, 2025 8:30am - 9:30am PDT
Salon I
  Breakout Session

10:30am PDT

Mapping for Impact: How Counties Use GIS to Solve Critical Community Challenges
Wednesday April 16, 2025 10:30am - 12:00pm PDT
Salon I
This session showcases the powerful role of GIS to solve county problems such as mental health accessibility, food insecurity, wastewater infrastructure, and public safety concerns. The Los Angeles County Department of Mental Health uses GIS to optimize service accessibility and decision-making, while a food access study in Riverside County highlights disparities in proximity to essential resources. Additionally, a Sonoma County wastewater study maps septic systems to identify sustainable treatment solutions. Lastly, learn how leveraging modern GIS can help propel your community forward as local efforts have pushed government capabilities and resources to extremes. Attendees will gain insights into geospatial applications that drive public health equity and environmental sustainability.

How the Department of Mental Health uses GIS
Olga M Tambazidis, GIS Technician II, Los Angeles County Department of Mental Health 

Evaluating Food Access for High-Need Populations in Riverside County: A spatial approach
Andrea Perez, MSGISci., GIS Research Specialist, Riverside University Health System-Public Health
Rina Hutajulu, Research Specialist I, Riverside University Health System-Public Health 
Krystal Corzine, Research Specialist II, Riverside University Health System-Public Health 

Mapping Wastewater: Geospatial Insights into Sonoma County’s Septic Systems
Roland Martin, Americas Region Geospatial & Earth Observation Skills Leader, Arup

Modern GIS Delivers County Government Solutions
Jason Latoski, Senior Solutions Engineer, Esri
Speakers
avatar for Olga M Tambazidis

Olga M Tambazidis

GIS Technician II, Los Angeles County Department of Mental Health
Olga Tambazidis is a GIS Technician II with the Los Angeles County Department of Mental Health, where she uses spatial analysis and data visualization to enhance the visual interpretation of data and supporting decision-making to improve countywide health equity. With six years of... Read More →
avatar for Andrea Perez, MSGISci

Andrea Perez, MSGISci

GIS Research Specialist, Riverside University Health System - Public Health
Andrea Perez, MSGISci is a GIS Research Specialist for the County of Riverside Department of Public Health, with expertise in geospatial data analysis, visualization, and public health applications. They specialize in GIS-driven research for public health and epidemiology, including... Read More →
avatar for Rina Hutajulu

Rina Hutajulu

Research Specialist l, Riverside University Health System - Public Health
Rina Katayama Hutajulu is a Research Specialist l for the RUHS – Public Health, Epidemiology Data Team and has over eight years of experience in Geographic Information Systems. Her research interests include spatial accessibility and health disparities. Rina is passionate about... Read More →
KC

Krystal Corzine

Research Specialist II, Riverside University Health System - Public Health
Krystal Silguero is a Research Specialist II for the County of Riverside Department of Public Health- Epidemiology and Program Evaluation branch. She has experience in communication, data analysis, analytical software, strategic planning, and program evaluation. She is empowered to... Read More →
avatar for Roland Martin

Roland Martin

Skills Leader, Arup
Roland Martin is a Senior Consultant for Arup Digital in Los Angeles. He has been responsible for all aspects of data creation, analysis, management, and visualization, for a wide range of projects and clients in different parts of the world.
avatar for Jason Latoski

Jason Latoski

Senior Solution Engineer, Esri
Jason Latoski is a Solution Engineer at Esri and has over 20 years’ experience in Geographic Information Systems. Jason strives to deliver the highest quality of customer service and geographic products as well as technical knowledge to meet all needs. Jason continually expands... Read More →
Wednesday April 16, 2025 10:30am - 12:00pm PDT
Salon I
  Breakout Session
 
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Grand Ballroom Foyer
Salon I
Salon II
Salon III + IV
Salon III/IV
Scandia Family Fun Center
Sonoma
TBA
  • Breakout Session
  • Coffee Break
  • Ignite Session
  • Keynote Address
  • Lunch
  • Meeting
  • Mini Workshop
  • Networking
  • Workshop
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