Check out Esri’s Blog on “A Look Back: How a GIS Team Guided Response and Recovery After 9/11” published on September 10, 2021 by Ryan Lanclos and David LaShell.

Two decades ago, cutting-edge geospatial tools were deployed by professionals in the response and recovery efforts following the 9/11 terrorist attacks, and lessons learned are still guiding software advancements.

Key Takeaways

• Mapping teams provided critical insight in response to the 9/11 attacks in New York City.
• Experts in the geographic approach created new tools—and new ways of using old ones—to guide relief efforts.
• City agencies quickly shared data, building on the highly detailed NYCMAP basemap, to address crises and solve problems.

Excerpt taken from https://www.esri.com/about/newsroom/blog/how-maps-guided-9-11-response-and-recovery/

The CARSI (Center for Advanced Research of Spatial Information) Model uses an embedded recursive SIR (suseptable, infected, removed) model to simultaneously solve for two key epidemiological parameters Ro and the contact ratio (CR). Modeling performed by Sean C. Ahearn, Professor & Director, sahearn@hunter.cuny.edu. Web-mapping by Shipeng Sun, Assistant Professor, shipeng.sun@hunter.cuny.edu. View the CARSI Covid-19 model at http://carsimodel.com

Professor Sean C. Ahearn participated in the “Geospatial Needs for a Pandemic-Resilient World_Agenda” June 17, 2020, hosted by the National Academies of Science

His presentation, “An embedded recursive SIR model for county level analysis of COVID-19” included

• predictions of death rates for the next 2 months for the US as a graph
• Ro & Contact ratio (i.e. diffusion) parameter estimation for every county in the US as a “map”
• predictive model for every county in the US

Professor Sean C. Ahearn will be participating in the Spatial Data Science Symposium “Getting the Spatial Data Science Agenda” , December 9-11, 2019 at the Center for Spatial Studies @ the University of California at Santa Barbara

His position paper along with those of the other invited guests can be found at http://spatial.ucsb.edu/2019/spatial-data-science-symposium/participants

Sean C. Ahearn has been invited to present “Tiger Sustainability: Movement, Interaction and Human Impact in Thailand and Myanmar” at The Explorers Club  in NYC on June 11, 2018.

https://explorers.org/events/detail/public_lecture_series_with_sean_ahearn

Sean C. Ahearn spoke at The Future of GIS in NYC forum scheduled at the Roosevelt House Public Policy Institute at Hunter College, April 23, 2018.  His topic was the History of GIS in NYC.

Sean C. Ahearn spoke at the NSF Mobility workshop scheduled at the Ohio State University, May 11-12, 2017.  His topic was Patrolling Behavior of Tigers and Geographic Context.

Sean C. Ahearn presented at the Schloss Dagstuhl Seminar “From Observations to Prediction of Movement” on July 9-14, 2017 in Saarbrücken, German.

http://www.dagstuhl.de/en/program/calendar/semhp/?semnr=17282

Sean C. Ahearn has been invited to attend the Workshop “Movement: New Sensors, New Data, New Challenges” in Leiden, The Netherlands August 21- 25 August 2017.

http://www.lorentzcenter.nl/lc/web/2017/884/info.php3?wsid=884&venue=Oort