Global Forest Canopy Modeler
This interactive tool models trends in forest canopy coverage for selected areas on demand globally, using annual percent tree cover data at 1 km resolution derived from the MODIS version 5.1 Vegetation Continuous Fields product (Townshend et al, 2011). The tool is referenced in Green, Gordon M., and Sean C. Ahearn. "Modelling forest canopy trends with on-demand spatial simulation." International Journal of Geographical Information Science" (2015): 1-13.
This project has focused on foundational research into the creation of a transformational, dynamic environment for pedagogy, knowledge construction, discourse, collaboration, and research in the domain of Geographic Information Science and Technology (GIS&T). Central to the project is a transformation of the GIS&T BoK into a core ontology for the field (BoKOnto). Led by Dr. Sean Ahearn of Hunter […]
Hurricane Sandy 3D Flood Map
The map displays the areas within New York City subject to hurricane Sandy storm surge according to data from the Federal Emergency Management Agency.
NYC Solar Map
Sustainable CUNY led the development of the NYC Solar Map, serves as host, and is guiding the Map expansions. CUNY’s Center for Advanced Research of Spatial Information (CARSI) at Hunter College was responsible for software design, development and implementation, with computational assistance by the High Performance Computing Center at CUNY’s College of Staten Island. The New York City Solar […]
NYC Cool Roofs Map
The map displays the relative amount of solar radiation absorbed by surfaces in New York City, and identifies which buildings would benefit most from a cool-roof coating.
NYC Lidar QA Project
Ahearn NYC Solar Map June 16 2011 PressConference
NYCMap is the citywide base map for New York City. This map is derived from aerial photographs and consists of a single and unified coverage, 1 foot in resolution. The plane used to obtain the photos contained an on board Global Positioning System which captures the precise location of each photograph and enables the creation of […]
NYCMap Incremental Updates and Database Integration
An Incremental Geographic Update System (IGUS) for a Large Geographic Database in New York CityJ. Ding and . S. Ahearn, CARSI Hunter College, 695 Park Avenue New York, New York 10021 E. Cooper, Terraprise Inc. 3205 Magazine Street New Orleans, LA 70115 Over the last decade a number of states and cities in America have successfully […]
Building Identification Number (BIN) Project
The purpose of the project is to verify that the Building Identification Numbers assigned by the New York City Department of Finance are correctly associated with their respective buildings within the NYCMap database. The verification process is achieved by compiling the city’s spatial data including ortho-photographs, Cogis tax lot maps, Sanborn fire safety maps, building […]
GIS mapping of the New York City sewer system
Background information about the New York City sewer system The New York City sewer system is a complex network: more than 6,000 miles of sanitary, storm, and combined pipes 200,000 manholes 14 sewer treatment plants thousands of additional underground chamber structures Managing the sewer system with decentralized paper maps. Issues: Each of the City’s five […]