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Brown Bag Lunch with Jason Ching

June 6, 2017 @ 12:00 pm - 1:00 pm

Brown Bag Lunch with Jason Ching

Tuesday, June 6th, 2017

UNC Institute for the Environment – Training Room

12:00 Noon


World Urban Database and Access Portal Tools or WUDAPT ( is an international initiative to acquire and disseminate climate relevant data on the physical geographies of cities for modeling and analyses purposes.  The current lacuna of globally consistent information on cities is a major impediment to urban climate science towards informing and developing climate mitigation and adaptation strategies at urban scales.  WUDAPT consists of a database and a portal system; its database is a hierarchical system, implemented with innovative protocols that utilize crowdsourcing approaches, Geowiki tools, freely accessible data, and building typology archetypes. At its Level 0, or L0, city landscapes are categorized and mapped into the widely accepted Local Climate Zones (LCZ) system. Each LCZ has associated range of values of model relevant descriptors (e.g. roughness, impervious surface cover, roof area, building heights, etc.) that link LCZs with local climate impacts. LO maps are created using a Landsat 8 data, guidance by experts with local knowledge of their cities and free geographic software.  Currently, quality assured Level 0 data is available for more than 100 of the world’s largest cities across all continents.  At Levels1&2 or (L1&2), spatial variability of model parameters are provided at greater precision, including those of morphological forms, material composition data and energy usage. This presentation describes the database, its portal tools and illustrate examples of applications in the widely used WRF modeling system.


BIosketch for Jason Ching

Jason Ching performed significant meteorological and air quality research field studies and modeling at NOAA and the USEPA for 40 years. During his early year at EPA, he led major field studies including urban boundary layer sub-project of the Regional Air Pollution Study (RAPS, planned and led (a) 1978 Tennessee Plume Study (TPS), (b) 1979 and 2000 Northeast Regional Oxidant Studies (NEROS), and the 1987-1989 Eulerian Model Evaluation Field Study (EMEFS) for the Regional Acid Deposition Model (RADM) model.  Subsequently, he engaged in developments evaluation and investigation of advanced air quality modeling tools including EPA’s Regional Oxidant Model (ROM), Regional Acid Deposition Model (RADM) (and its meteorological driver MM5), and Regional Particulate Model (RPM).  During his tenure as Model Development Branch Chief, he led the conceptual design and first implementation of the CMAQ portion of the Models-3/ Community Multiscale Air Quality Modeling (CMAQ) system, a system widely accepted and utilized by the international air quality modeling community in wide varieties of applications, including being a decision support system for air quality issues.  For urban applications, he promoted the urbanizing of MM5 and WRF systems, and PI for the National Urban Database and Access Portal Tools, NUDAPT.  After retiring from Federal Service, he is currently a Senior Research Collaborator at UNC’s Institute for the Environment (UNC-IE) where his focus is on fine grid urban modeling. He recently initiated the international collaboration project called “World Urban Database and Access Portal Tools” or WUDAPT.


June 6, 2017
12:00 pm - 1:00 pm


Institute for the Environment
100 Europa Dr., Suite 490
Chapel Hill, NC 27517 United States
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