Ozone Isopleth Plotting Program (OZIP) Web Interface
(Advanced Interface)

DISCLAIMER!The OZIP model available through this Web page is NOT to be used for regulatory, research, legal, or scientific purposes. It is intended SOLELY as an educational tool.

Please enter the following parameters. Items with a sample file or pop-up supporting calculator are hyperlinked. Default values are automatically entered:

Sections to be completed:

Required Data Sets Title and Initial Settings
Boundary Conditions Meteorological Conditions
Emissions Inventories Calculation Options
Output Options Run the model

Required Data Sets:
Mechanism set to use:
Carbon-Bond Mechanism IV
Regional Acid Deposition Model (RADM) mechanism 		Zenith set to use:
JSpec640
Regional Acid Deposition Model (RADM) mechanism
Reactivities:
Carbon-Bond IV Reactivities Carbon-Bond IV (Urban) Reactivities
Regional Acid Deposition Model (RADM) Reactivities
Customize your own reactivities:
FORMAT: Species name, Initial concentration (ppm), transported aloft (ppm), transported surface (ppm)
PAR:
ETH:
OLE:
TOL:
XYL:
FORM:
ALD2:
ISOP:
DIENES:
NR:

Title and Initial Settings:
Title of the simulation:
Location:
Latitude : Longitude : Time Zone:
Year : Month : Day :

Boundary Conditions:
Fraction of NO2/NOx : O3 at the surface (ppm) :
O3 aloft (height in m, ppm) : VOC at the surface (ppm) :
VOC aloft (ppm) :
NOx at the surface (ppm) :
NOx aloft (ppm) : CO aloft (ppm) :

Meteorological Conditions:
  1. Dilutions:
    Initial Mixing height (meters) : Final Mixing height (meters) :
    Initial time of mixing height increase : Final time of the mixing height increase :
  2. Temperatures [series of ] (in degrees ) :
  3. Pressure (in units of ) :
  4. Relative Humidities [series of ] :

Emissions Inventories:

Option 1: Emissions Fractions

Use default emissions fraction file Define your own emissions fractions (use the block below):

Emissions Fractions Profile

Number of emissions fractions [series of ]:

Option 2: Mass Emissions Inventory

Use default mass emissions file Define your own mass emissions file (use the block below):

Mass Emissions Profile

Note: VOC, NOx, and CO mass emissions are required. Use checkboxes to select other optional species.

Number of emissions (one concentration [ppm] and the rest emissions values [kg/km2]) [series of ]:

Calculation Options:

Option 1: Single Point Calculations

Use default calculations file Define your own calculations file (use the block below):
Volatile organic compounds :
Nitrogen oxides :
Carbon monoxide :

Option 2: EKMA

Use default EKMA file Define your own EKMA file (use the block below):

EKMA Profile

  1. Base
    O3 (daily design value) : Carbon monoxide :
    Check here to use design ratio Design Ratio :

    or, instead of a design ratio, you may enter:

    Controllable VOCs (ppm): Controllable NOx (ppm) :
  2. Future
    Decrease in NOx emissions (percentage) : Decrease in CO emissions (percentage) :
    Decrease in O3 aloft : Decrease in VOC emissions (aloft) :
  3. Extra EKMA Options
    Simulation attempts: VOC reduction level (percentage) :
    Print VOC table Print NOx table Print CO table

Output Options:

Generation of Isopleths (Graphical output)

Isopleth Values (you must enter 5 values)

First isopleth level (in ppm): Second isopleth level (in ppm): Third isopleth level (in ppm):
Fourth isopleth level (in ppm): Fifth isopleth level (in ppm):

Image Scaling

Note: image scaling is a percent, 1.0 is a full-sized graphic, 0.5 is half-sized. With less then a scaling of 1.0, some resolution may be lost:

Image Scaling:

Use default isopleth file Define your own isopleth file (use the block below):

Maximum VOC: Maximum NOx : CO :

Run the Model:

 NOTE! This simulation requires several minutes to run, generate numerical datafiles, convert datafiles to images, and create a customized HTML file for display. Model runs can take up to five (5) minutes! Please be patient! You can also look at a sample file of several simulation runs and a partial analysis.
----

Developed by
The Shodor Education Foundation, Inc.