35 PC-HYSPLIT WORKSHOP Example Simulations Presented on the following slides are several basic trajectory and dispersion simulations and meteorological data display examples that you can run prior to viewing section 3 and 4 of the presentation. Sections 3 and 4 will delve more deeply into the inner workings of the model and advanced settings of the GUI. The first slide of each example will present the problem to be answered, the next few slides will show the GUI inputs, and the last slide will show the resulting map. It is recommended to click on the Reset button of the main HYSPLIT menu before proceeding in order to clear out any old cases in the working directory. Note: These runs were produced using HYSPLIT version 4.9 (released February 2009). Slight differences are possible with older/newer versions of the model.

36 PC-HYSPLIT WORKSHOP Example 1: Multiple Trajectories Source Location: Houston, Texas (29.65N, 10 and 750 meters AGL Date/Time:February 17, 1200 UTC (can use default zeros) Duration:Forward 48 hours Meteorology: NAM 40 km Display:Zoom set to 80% Endpoint labels every 6 hours Vertical display coordinate set to Meters-agl Optional Google Earth

37 PC-HYSPLIT WORKSHOP Example 1: Inputs

38 PC-HYSPLIT WORKSHOP Example 1: Results

39 PC-HYSPLIT WORKSHOP Example 2: Back Trajectory Source Location: Atlanta, Georgia (33.65N, 750 meters AGL Date/Time:February 20, 0600 UTC Duration:Backward 72 hours Meteorology: GFS Display:Zoom set to 80% Endpoint labels every 12 hours Vertical display coordinate set to Meters-agl Optional Google Earth

40 PC-HYSPLIT WORKSHOP Example 2: Inputs

41 PC-HYSPLIT WORKSHOP Example 2: Results

42 PC-HYSPLIT WORKSHOP Example 3: Simple Dispersion Source Location: New Orleans, LA (30.05N, 10 meters AGL Source Duration:1 unit/hr source emission for 2 hours Date/Time:February 18, 1200 UTC Duration:Forward, 6 hours Output:6-hour average concentration between the surface and 100 meters Grid Spacing:0.05 degrees latitude and longitude Grid Span:20.0 degrees latitude and longitude Deposition:None Meteorology: hysplit.t12z.namsf.SEtile (NAM 12 km SE US tile) Display:Zoom set to 50% Optional Google Earth

Example 3: Inputs 43 PC-HYSPLIT WORKSHOP

Example 3: Inputs 44 PC-HYSPLIT WORKSHOP

Example 3: Inputs 45 PC-HYSPLIT WORKSHOP To display the concentration results, choose Contours from the Concentration / Display / Concentration menu.

Example 3: Results 46 PC-HYSPLIT WORKSHOP

47 PC-HYSPLIT WORKSHOP Example 4: Simple Dispersion Source Location: New Orleans, LA (30.05N, 10 meters AGL Source Duration:1 unit/hr source emission for 2 hours Date/Time:February 18, 1200 UTC Duration:Forward, 4 hours Output:30-minute average concentration between the surface and 100 m Grid Spacing:0.01 degrees latitude and longitude Grid Span:10.0 degrees latitude and longitude Deposition:None Meteorology: hysplit.t12z.namsf.SEtile (NAM 12 km SE US tile) Display:Zoom set to 90% Add four 50 km rings Add county map background (file map_county) Fix exponential contours Optional: Create animated gif image

Example 4: Inputs 48 PC-HYSPLIT WORKSHOP

Example 4: Inputs 49 PC-HYSPLIT WORKSHOP

Example 4: Inputs 50 PC-HYSPLIT WORKSHOP

Example 4: Results 51 PC-HYSPLIT WORKSHOP

52 PC-HYSPLIT WORKSHOP Example 5: Meteorology From the last case, explore the wind field near the source location. Source Location: New Orleans, LA (30.05N, 90.03W) Date/Time:February 18, 2009 UTC Meteorology: hysplit.t12z.namsf.SEtile (NAM 12 km SE US tile) Display:1) Show 10 meters wind vector maps every 3 hours beginning 1200 UTC February 18 (see next page for defaults). 2) Hourly profile output at source location UTC using the Polar coordinate system to show wind direction and speed. (This may take a few minutes to generate.) Notes:The NAM dataset begins with February 17, 1200 UTC and has data every hour, which can be determined by running Check File.

Example 5: Contour Inputs 53 PC-HYSPLIT WORKSHOP

Example 5: Results 54 PC-HYSPLIT WORKSHOP Approximate source location (not displayed on original map) Note that the winds are initially from the SSW, but then come from the WNW by 0600 UTC on February 19.

Example 5: Profile Inputs 55 PC-HYSPLIT WORKSHOP

Example 5: Results 56 PC-HYSPLIT WORKSHOP Wind Direction and Speed at 1010 hPa Date/TimeWDIRWSPD 18/ / / / / / / / /