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Trajectory Aggregator Tool (TAT)

Trajectory Aggregator Tool (TAT). The Combined Aerosol Trajectory Tool (CATT) has two loosely coupled components: Chemical Filter Tool (CFT) Trajectory Aggregator Tool (TAT) This is a description of the TAT tool Aug 2004, RBH. CATT Data Flow.

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Trajectory Aggregator Tool (TAT)

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  1. Trajectory Aggregator Tool (TAT) The Combined Aerosol Trajectory Tool (CATT) has two loosely coupled components: Chemical Filter Tool (CFT) Trajectory Aggregator Tool (TAT) This is a description of the TAT tool Aug 2004, RBH

  2. CATT Data Flow Chemical Filter Tool (CFT). This component is accomplished through queries to chemical data sets. The output of this step is a list of “qualified” set of date-location pairs. Chemical Filter Tool Trajectory Aggregator Tool (TAT). This component receives the list of date-location pairs and performs the trajectory aggregation, residence time calculation and other spatial operations to yield a transport pattern for specific receptor location and chemical conditions. Trajectory Aggregator Tool

  3. Trajectory Aggregator User Interface Table field selector Trajectory dataset CSV filter table URL loc_id,loc_code,datetime,so4 1,ACAD,2001-07-24,15.50732 144,ADPI,2001-07-24,24.74262 144,ADPI,2001-08-02,34.40452 CSV filter table Key weight factors: Conc. weight: None, Sqrt, Linear Age. weight: None, Sqrt, Linear

  4. Layer Visibility Data Cursor File Layer Selector Layer Order View Controls Location Cursor View Settings Buttons Click on location to move cursor Map View Layer Controls Time View Time Cursor Click on time to move cursor

  5. Trajectory Aggregator -Grid User Interface Table field selector Trajectory dataset CSV filter table URL loc_id,loc_code,datetime,so4 1,ACAD,2001-07-24,15.50732 144,ADPI,2001-07-24,24.74262 144,ADPI,2001-08-02,34.40452 CSV filter table Key weight factors: Conc. weight: None, Sqrt, Linear Age. weight: None, Sqrt, Linear

  6. Role of Weights (VIEWS Data Filter: SO4 > 15 ug/m3) Age wt - None Age wt - Sqrt Age wt - Linear Conc. None • Each trajectory can be weighed by Concentration or Age (distance from receptor) • Concentration weight has little influence on the ‘source’ pattern (column 1) • The Age weight moves the source upwind from the receptors SNonASqr SNonANon SNonALin Conc. Sqrt SSqrANon SSqrALin SSqrASqr Conc. Linear SLinASqr SLinANon SLinALin

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