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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.
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Wednesday, April 16
 

8:00am PDT

Coffee Break with Exhibitors
Wednesday April 16, 2025 8:00am - 8:30am PDT
Wednesday April 16, 2025 8:00am - 8:30am PDT
Grand Ballroom Foyer

8:30am PDT

Advancing Environmental Intelligence with LiDAR & 3D Elevation Data
Wednesday April 16, 2025 8:30am - 9:30am PDT
This session presents major advancements in geospatial data for urban forestry and high-resolution elevation mapping. A multi-agency initiative is utilizing AI, LiDAR, and deep learning to map and analyze California’s urban canopy, supporting climate resilience and wildfire mitigation. The USGS 3D Elevation Program (3DEP) is providing statewide high-resolution LiDAR, ensuring accurate topographic data for planning and environmental applications. Attendees will discover the latest innovations in geospatial data acquisition, analysis, and collaborative mapping efforts.

Where Are the Trees? Mapping California's Urban Canopy
Francesca Rohr, Geospatial Analyst, California Department of Forestry and Fire Protection
Jacob Mark, Geospatial Project Manager, Dewberry Engineers, Inc.

Status of Lidar in California
Drew Decker, National Map Liaison, U.S. Geological Survey

Speakers
avatar for Francesca Rohr

Francesca Rohr

Research Data Specialist, California Department of Forestry and Fire Protection
Based in Santa Rosa, Francesca is a geospatial analyst with many years of experience with CAL FIRE’s resource management division, currently with the Urban and Community Forestry program. Technical capabilities stretch from designing field data collection systems, analyzing data... Read More →
avatar for Jacob Mark

Jacob Mark

Geospatial Project Manager, Dewberry Engineers, Inc.
Based out of Dewberry’s office in Sacramento, Jacob is an accomplished spatial analyst and technical coordinator with an extensive background in leading data-driven GIS projects for local, state, and federal sectors. These projects have included spatial & data analysis, dynamic... Read More →
avatar for Drew Decker

Drew Decker

National Map Liaison, U.S. Geological Survey
Drew Decker is the National Map Liaison for California, Hawaii, and the Pacific Basin and has worked for the National Geospatial Program within USGS since 2007.  He works with local, state, and other federal agencies to coordinate mapping production, maintenance, standards, and planning... Read More →
Wednesday April 16, 2025 8:30am - 9:30am PDT
Sonoma

8:30am PDT

Enhancing Emergency Response & Flood Resilience with GIS
Wednesday April 16, 2025 8:30am - 9:30am PDT
This session explores cutting-edge GIS applications in emergency management and disaster response. Indoor mapping advancements for 9-1-1 centers enhance real-time situational awareness, while the Regional Delta-Wide Decision Support Tool provides actionable flood intelligence using Esri’s GIS platforms. The tool enables field teams to monitor levee conditions, access real-time weather and flood data, and communicate efficiently during emergencies. Attendees will gain a deeper understanding of how GIS supports life-saving operations and proactive disaster mitigation.

Indoor Mapping for Emergency Response and Beyond
Lauren DiGiovanni, MGIS, GISP, ENP, Client Success Manager, DATAMARK Technologies, a Michael Baker Intl. Company

State of California Delta Emergency Management Tool
Jennifer Buchanan, GISP, Certified Floodplain Manager, GEI Consultants
Chris Ferrari, P.E., CFM, Senior Professional, GEI Consultants
Speakers
avatar for Lauren DiGiovanni, MGIS, GISP, ENP

Lauren DiGiovanni, MGIS, GISP, ENP

Client Success Manager, DATAMARK Technologies, a Michael Baker Intl. Company
Lauren DiGiovanni, MGIS, GISP, ENP, is a Client Success Manager at DATAMARK Technologies. She has 15 years of GIS experience and previously worked as a GIS Analyst for a PSAP in Colorado. She is well-versed in NG911 GIS requirements and specializes in assisting agencies with their... Read More →
avatar for Jennifer Buchanan, GISP, ENV SP, CFM

Jennifer Buchanan, GISP, ENV SP, CFM

Water Resources Engineer, GEI Consultants
Jennifer Buchanan is a Certified Floodplain Manager (CFM), Certified Geographic Information Systems Professional (GISP) and received a GIS Certificate of Achievement. She has over 20 years of years of experience as a Water Resources Engineer and GIS Specialist. Ms. Buchanan specializes... Read More →
CF

Chris Ferrari, P.E., CFM

Senior Professional, GEI Consultants
Chris Ferrari has over 30 years of comprehensive civil engineering experience in both the public and private sectors. Mr. Ferrari developed, evaluated, and provided quality control on several water resource projects for city, county, and flood control agencies; California Delta Reclamation... Read More →
Wednesday April 16, 2025 8:30am - 9:30am PDT
Salon II

8:30am PDT

Standards, Open Data, and Cloud Transformation in GIS
Wednesday April 16, 2025 8:30am - 9:30am PDT
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

9:30am PDT

Coffee Break with Exhibitors
Wednesday April 16, 2025 9:30am - 10:30am PDT
Coffee/energy in the exhibit hall with a las chance to meet with sponsors. Sponsor VIP prize giveaways - must be present to win!
Wednesday April 16, 2025 9:30am - 10:30am PDT
Grand Ballroom Foyer

10:30am PDT

Mapping for Impact: How Counties Use GIS to Solve Critical Community Challenges
Wednesday April 16, 2025 10:30am - 12:00pm PDT
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

10:30am PDT

Interactive Mapping for All: Leveraging OpenAI API to Build Accessible GIS Solutions
Wednesday April 16, 2025 10:30am - 12:00pm PDT
In this mini workshop, attendees will use OpenAI API to summarize property data (reviews, area scores, nearby attractions) and present it on an interactive map for easy decision-making.
We will highlight a use case as AI transforms complex property data into concise, user-friendly summaries and display summarized information as clickable markers on an interactive map.

How It Works
  1. Data Collection: Pull property details (address, reviews, area scores, attractions) from public rental databases.
  2. AI Summarization: Use OpenAI API to generate concise summaries of reviews, area scores, and nearby amenities.
  3. Interactive Map: Display properties as markers with AI-generated summaries in popups.
  4. Live Demo Workflow

Attendees may bring a laptop to follow along.

Speakers
avatar for Harit Shah

Harit Shah

GIS Developer, California Department of Transportation
Harit Shah is a GIS professional and a Master's student in Computer Science at CSU Sacramento, where he serves as a teaching assistant and campus strategist for Perplexity AI. Harit’s expertise in geospatial technologies has been demonstrated through his impactful work at CALTRANS... Read More →
Wednesday April 16, 2025 10:30am - 12:00pm PDT
Salon II

10:30am PDT

Modernizing Hydrography Channel Extraction
Wednesday April 16, 2025 10:30am - 12:00pm PDT
Now that we have LiDAR data, let’s put it to work improving our surface water maps.  Learn about tools available now for extracting information from the LiDAR digital elevation models, including geomorphic landforms, z-values, and more, to create channels that represent the presence and flow of water on the landscape.  Attendees who provide their own laptop and ArcGIS Pro license will be invited to follow along this demonstration of using a Geomorphic Index (GMI) to help identify the most likely flow paths. This workshop includes fundamentals on the US Geological Survey’s National Map hydrography datasets: past, current, and future; from the NHD to 3DHP, and the role of federal, state, regional, and local entities in building out a modern hydro network for the Nation.

Key takeaways: Our collective investment in LiDAR is paying off by enabling the creation of hydrography that has improved horizontal accuracy and alignment with the earth’s surface. While the USGS has taken the lead in the acquisition of elevation-derived hydrography for its nation-wide 3D Hydrography Program, the build-out of this hydrography network will take several years. In the meantime, GIS practitioners can replace legacy datasets for their own geographies of interest with LiDAR data and tools that may already be available to them. This hydrography can be put to good use for their mapping and modeling needs.

Attendees should bring their own charged laptop and ArcGIS Pro license in order to follow along.


Speakers
avatar for Jane A Schafer-Kramer

Jane A Schafer-Kramer

Technical Lead, California Department of Water Resources
I'm currently employed with the California Department of Water Resources as the technical lead for national hydrography data stewardship program and have been since its inception ten years ago. I'm a member of Geospatial Professional Network and served a term as president of the Northern... Read More →
avatar for Drew Decker

Drew Decker

National Map Liaison, U.S. Geological Survey
Drew Decker is the National Map Liaison for California, Hawaii, and the Pacific Basin and has worked for the National Geospatial Program within USGS since 2007.  He works with local, state, and other federal agencies to coordinate mapping production, maintenance, standards, and planning... Read More →
avatar for Joel Osuna-Williams

Joel Osuna-Williams

Senior Project Manager, Center for Geospatial Science and Technology, CSU Northridge
Joel Osuna-Williams has worked at the Center for Geospatial Science and Technology (CGST) at California State University, Northridge (CSUN) for over 15 years. He is currently a senior project manager helping to lead hydrographic data production and stewardship in partnership with... Read More →
avatar for Erik Fintel

Erik Fintel

GIS Project Manager, North State Planning & Development Collective (NSPDC) CSU, Chico
Erik Fintel has worked at the North State Planning & Development Collective (NSPDC) formerly the Geographical Information Center at California State University, Chico, for 20+ years. He is currently a GIS Project Manager helping to lead the work done on the 3D Hydrography Program... Read More →
Wednesday April 16, 2025 10:30am - 12:00pm PDT
Sonoma

12:00pm PDT

Lunch on Own
Wednesday April 16, 2025 12:00pm - 1:30pm PDT
Wednesday April 16, 2025 12:00pm - 1:30pm PDT

1:30pm PDT

Closing Panel: Sharing Geographic Data in California
Wednesday April 16, 2025 1:30pm - 3:30pm PDT
Sharing geographic datasets is a hallmark of the state’s geospatial community. With improved coordination between a dataset’s stewards, clearing houses to consolidate datasets, and those that use the data, our state’s collective efficiency with all location-based efforts should improve.

A moderated panel discussion with geospatial community leaders, along with audience open discussion, can shed light on the challenges the community has publishing, finding, and consuming authoritative datasets.

Discussion topics may include:
  • The role of geodata portals in the state, e.g. California Geoportal and Esri’s Living Atlas
  • Use of AI tools to gather and process geospatial datasets from disparate sources
  • Defining and recognizing authoritative data sources
  • More efficient methods to consume published datasets
  • Data collaboration and sharing
  • Metadata standardization


Moderators
avatar for Lothar Petrik

Lothar Petrik

State GIO, California Department of Technology
Speakers
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 Sandi Stroud

Sandi Stroud

Director of Public Safety, 1Spatial
Sandi has spent her professional career working both in the private and public sector of 911 and GIS. Sandi has worn the hat of a local GIS manager, regional GIS coordinator and supported a federal public safety mission with GIS. Drawing on her vast background managing and applying... Read More →
avatar for Drew Decker

Drew Decker

National Map Liaison, U.S. Geological Survey
Drew Decker is the National Map Liaison for California, Hawaii, and the Pacific Basin and has worked for the National Geospatial Program within USGS since 2007.  He works with local, state, and other federal agencies to coordinate mapping production, maintenance, standards, and planning... Read More →
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 1:30pm - 3:30pm PDT
Salon III/IV

4:00pm PDT

CalGPN General Membership Meeting + Board of Director's Meeting
Wednesday April 16, 2025 4:00pm - 5:00pm PDT
Join CalURISA as we transition to the Geospatial Professional Network - California!

Learn about the organization, volunteer opportunities, networking events, and workshops for the upcoming year.

Following the general membership meeting will be a Board of Directors meeting.

Sean Phayakapong; Greg Mattis; Totran Mai; Jason Latoski
Wednesday April 16, 2025 4:00pm - 5:00pm PDT

5:00pm PDT

After Hours Hangout: Sharing Stories and Giving Back to the Community
Wednesday April 16, 2025 5:00pm - 7:00pm PDT
TBA
Just because the sessions have concluded, doesn't mean the connections and conversations have to end!
Hang out, talk about what you learned, and how you might give back to the community in the months to come.
Meet up at the lobby bar and tell some stories!
Wednesday April 16, 2025 5:00pm - 7:00pm PDT
TBA
 
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