Plume Manager v.5.1.2023

Threat Tools

May 1, 2023

Plume Manager

The Plume Manager tool allows you to assess, model, and display the following: Chemical/Biological Threats, Explosive Threats, Nuclear/Radiological Threats.

Navigation

Launch the Plume Manager tool by accessing it from the Menu list (Menu > Threats> Plume Manager)

You can create the following types of plumes:

• ALOHA
• JEM
• ERG
• EXPLOSIVES STANDOFF
• BLAST EFFECTS
• NUCLEAR DEVICE EFFECTS

You can select from the different plume options, choose their source point on the map, and have the resulting plumes shown in relation to other objects and features on the map.  

Inserting a Plume

• On the Plume Manager’s main page, click on the Insert New Plume button.

• The Insert New Plume page will be displayed to allow you to create your plume.

• Start by naming your plume in the Plume Name (required field).  

• Select the plume model to generate (Aloha, HPAC/JEM, ERG IIPAD, Explosives Standoff, Blast Effects,  Nuclear Device Effects). Each of the plume models will have different elements to fill out. The following pages will explain the available plume models.

Editing a Plume

• Highlight the Plume you wish to edit from the list of existing plumes.

• Click on the edit icon and make the appropriate changes in the details screen.

Deleting a Plume

• Highlight the Plume you wish to delete from the list of existing plumes.

• Click on the trash icon to delete your plume from the list.

ALOHA  

Areal Locations of Hazardous Atmospheres is a program designed to model chemical releases. ALOHA  provides a chemical dispersion model for the first 60 minutes of a chemical’s dispersion. ALOHA displays a threat zone and calculates how quickly chemicals are escaping from tanks, puddles, gas pipelines, and more.  

• Select ALOHA for plume type

• Click on the Select files button to browse and import your PAS file (ALOHA file) • Set the Plume’s source point by clicking on the mini-map

• Optionally, put in a description

• Click “Insert” to save the plume to the incident and map

• Click the Insert button to generate plume onto map

HPAC / JEM

U.S. Department of Defense Models. Hazard Prediction and Assessment Capability (HPAC) and the Joint  Effects Model (JEM) provide the capability to predict Nuclear, Biological, Chemical, (NBC) and Toxic  Industrial Chemical / Material (TIC/TIM) effects.

• Select HPAC / JEM for plume type

• Click on the Select files button to browse and select your ZIP file  

• NO SOURCE POINT NEEDED – HPAC/JEM file sets this automatically

• Optionally, put in a description

• Click the Insert button to generate plume onto map

ERG IIPAD

The Emergency Response Guidebook Initial Isolation and Protective Action Distances provide users with a map-based plot of the green pages of the ERG. This provides distances useful to protect people from vapors resulting from spills involving toxic chemicals, including chemical warfare agents and materials that produce toxic gases upon contact with water.

• Select ERG IIPAD for plume type

• Select the Chemical from the ERG Chemical list. You can also type in the list to filter it. • Set the “From” Wind Direction (in degrees), Daytime and Large Spill checkboxes • Set the Plume’s source point by clicking on the mini-map

• Optionally, put in a description

• Click the Insert button to generate plume onto the map

Explosives Standoff

The Explosives Evacuation plume provides two perimeters.  

• Inner (Red) is the area that must be evacuated completely (buildings and outside)
• Outer (Yellow) is the area in which sheltering in a building is safe, but being outside is NOT safe
• Beyond Yellow is the area in which being outside is also safe.

• Select Explosives Standoff for plume type

• Select the Explosive Source (device type) from the drop-down

• Set the Plume’s source point by clicking on the mini-map

• Optionally, put in a description

• Click the Insert button to generate plume onto the map

Blast Effects

The Blast Effects model provides effects on a building of an IED or VBIED (Vehicle Borne Improvised  Explosive Device), or injury levels for personnel within a building. Users must select the IED type and building type. The device type is analogous to changing the value in the Charge Weight dropdown. The resulting damage categories and effected distances will be represented graphically on the map.

• Select Blast Effects for plume type

• Set the Building Type

• Select the Explosive Source (Device type or Charge Weight) from either drop-down • Set the Output values (building damage vs injuries vs windows) and units of measure • Set the Plume’s source point by clicking on the mini-map

• Optionally, add a description

• Click the Insert button to generate plume onto the map

Nuclear Device Effects

The Nuclear Effects plume provides thermal, air blast, radiation, and fireball damage rings. The model takes an effective device yield as an input and provides the user with the radius for thermal radiation  (3rd-degree burns), air blast over-pressures, ionizing radiation (500 rem), and fireball radius for both an optimal and a surface burst of a nuclear device.  

• Select Nuclear Device Effects for plume type

• Enter the Device Yield

• Set the Plume’s source point by clicking on the mini-map

• Optionally, add a description

• Click the Insert button to generate plume onto the map