Set ADM Sources The OMEGA System has an Atmospheric Dispersion Model (ADM). XOMEGA allows you to select source locations for this model. All these locations must be within the model domain. When "Set ADM Sources" is clicked two dialog boxes will pop up (Set ADM Sources and Map Operations) and a world map will be displayed in the Drawing Area window. The dialog boxes are used to input ADM source information which will then be displayed on the map. The Set ADM Sources dialog box is the main control for the ADM programs. You will use it to define the source locations and source strengths. The dialog has five sections: ADM Options, ADM Source Patterns, Current Source Controls, ADM Source Parameters, and two rows of Action Buttons. How to use each section will be described, followed by exact specifications of each control's actions, valid data range, and default value. The data for each source is stored internally as a list of sources. The Current Source's information will be displayed in the Set ADM Sources dialog. To view data from the other sources you must use the Current Source Controls. Note that several of the controls are only used with advanced ADM modes. The general user is encouraged to leave the default values, and specify only Location and Time values. Atmospheric Dispersion Model Options This group of option menus is responsible for setting the most general features of the ADM module. These options will apply to all sources selected. The options control which ADM program is run, and how it will behave. Mode - Currently this option menu has two choices: Off and Tracer. Off will cause the ADM program to be skipped when running the OMEGA Model. Tracer will active tracer type particles in the ADM model. Default: Tracer Diffusion - This option menu has two choices: Puff and LPDM. Puff will cause the ADM program to use puff computations when it runs. LPDM will cause the ADM program to use Lagrangian Particle Diffusion when it runs. Default: Puff Eulerian - This option menu has two choices: Off and On. If On is selected, The ADM will take the first three sources defined and duplicate them as Eulerian Sources. Default: Off ADM Source Patterns These buttons are included as convenience features that allow you to build ADM source array patters in a single step. When clicked on the appropriate list of ADM sources will be filled in, and their locations put on the map. The button labels give the total number of sources and the general pattern. 9 Sources Uniformly Spaced in a 3x3 Array - Self Explanatory 225 Sources Uniformly Spaced in a 15x15 Array - Self Explanatory NOTE: To efficiently remove all sources, it is easiest to click on Clear Data, rather than doing a series of Delete, Cycle, Delete Cycle, ... steps. Current Source Controls When you use the cursor to click on an ADM Point on the map, the numbers located in this section will increment. By clicking on the arrow buttons you may cycle through the sources. On the map the current source will be shown as a open orange circle. Any other sources you may have defined will be drawn with solid orange dots. You may delete any source by clicking on "Delete" (Note: there is NO confirmation process). Current Source - A dynamic label showing the current source and the total number of sources. The current source's values appear in the Source Parameters' text entry boxes. Left Arrow - Decrement the Current Source filling the Source Parameters' information and drawing the Current Source as an open orange dot. Cyclic action going down: 1 <- 2 <- 3 <- 4 <- 1 ... Right Arrow - Increment the Current Source filling the Source Parameters' information and drawing the Current Source as an open orange dot. Cyclic action going up: 1 -> 2 -> 3 -> 4 -> 1 ... Delete - Remove the Current Source and shift up any subsequent sources. For example: four sources are defined, the current source is number 3, and Delete is clicked. Source 3 is removed from the list, and source 4 becomes source 3. Source Parameters The Source Parameters section displays all the information about a source, including its location, time bounds, and strength. Typical values for some parameters are listed for 1000 micron dust particle. Other types of particles will have different typical values. Longitude - Longitude of current source location. Valid Range: -180.00 to 180.00 Default Value: 0.00 Longitude - Latitude of current source location. Valid Range: -180.00 to 180.00 Default Value: 0.00 Altitude - Altitude of current source location in meters above ground level. Valid Range: 1.00 to 100.00m Default Value: 20.00 Start Time - Number of seconds after start of simulation to begin release of particles from current source. Valid Range: 0.00 to maximum number of seconds in simulation Default Value: 0.00 End Time - Number of seconds start of simulation to halt release of particles from current source. Valid Range: 0.00 to maximum number of seconds in simulation Default Value: maximum number of seconds in simulation, if defined. Injection Interval - Number of seconds between release of particle from current source. Valid Range: 1.00 to 10800.00 seconds (30 hours) Default Value: 1800.00s (1/2 hour) Diameter - Diameter of particle in meters released from current source. Default Value: 0.00 m Typical Value: 0.001 m Mass - Mass of particle in kilograms released from current source. Default Value: 0.00 kg Typical Value: 1.05e-6 kg Density - Density of particle in kilograms per cubic meter for current source. Note this number must be consistent with the Mass and Diameter. Default Value: 0.00 kg/m3 Typical Value: 2000.00 kg/m3 Vapor Concentration - Vapor Concentration of puff in kilograms per cubic meter for current source. Note this number must be consistent with the Mass and Diameter. Default Value: 0.00 kg/m3 Typical Value: 1.00 kg/m3 Sigma in x - Initial sigma value of the puff in the x dimension in meters for the current source. Default Value: 0.00 m Typical Value: 5.00 m Sigma in y - Initial sigma value of the puff in the y dimension in meters for the current source. Default Value: 0.00 m Typical Value: 5.00 m Sigma in z - Initial sigma value of the puff in the z dimension in meters for the current source. Default Value: 0.00 m Typical Value: 5.00 m Particle Multiplier - Number of actual particles to release from current source. If this value is not one, it will be used to modify the source term in the ADM so that multiple particles will be released at each interval from the same source. For example if this value is three, then the source will release three particles every interval, not just one. Valid Range: 1 to 10 Default Value: 1 Action Buttons Clear Form - This button will reset the text entries to zeros, and re-set the option menus to the default values. It does not modify the Source Data in any way. The user must modify the values before continuing. Default - This button will reset all text entries and option menus to their default values. It does not modify the Source Data in any way. The user must modify the values before continuing. OK - This button will check the Source data, cause XOMEGA to write out a "adm.inp" file in the case directory and close the dialog box. If any values are in error, a Set ADM Sources Error dialog box will pop up alerting the user of the specific errors and suggestions on how to correct them. See Section 9.6.5 for information on the Error dialog box. No "adm.inp" file will be written if there are errors in the data. Cancel - This button will decline the Source data, remove all sources, reset the values to default, and close the dialog box. There is no confirmation process. Help - This button will open the Help dialog and load this section. Set ADM Sources Error While entering values into the text entries if you make errors a dialog box will pop up alerting you of the errors and suggesting ways to correct them. The top part of the dialog box contains the error message and the suggestions. The bottom part has a row with three action buttons: Delete Current Source - This button will remove the Current Source from the list similar to Delete on the Set ADM Sources dialog. Be sure that the Current Source is the one containing the error before clicking this button. Use the arrow buttons if needed to change to the Current Source. This button will dismiss the Error dialog. Modify Regions - This button will return control to the Set ADM Sources dialog box and dismiss the Error dialog box. You may now modify the sources as usual. Help - This button will open the Help dialog and load this section. END Set ADM Sources