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Homepage » Lesson 9 » Lesson 9.1
If you have a complete inventory from a previous year entered into TEISS, you can use the information in that project to start a new project for a later year.
For example, your tribe completed its first EI in 2000 and released it to the NEI. ITEP formatted your project into the NIF format. (In the days before TEISS, NIF formatting had to be done manually). ITEP then provided you with a TEISS project with your 2000 data in it. It is now 2006 and you are ready to do a 2005 EI for your reservation. You have had several new point sources built on the reservation. You also want to do a better job on your unpaved road dust emissions, this year you have time to get good average daily traffic counts and your tribe's GIS department has good numbers now for miles of road. Otherwise, you want to include all the information from the 2000 EI in the 2005 EI and just update the activity data and recalculate the emissions.
For another example you completed your reservation's first EI, based on the year 2002, using TEISS in 2004. Now it is 2006 and your EPA work plan says that you are going to update your EI for 2005.
In both these cases, you have a TEISS project from a previous year that has a lot of the information that you would need to enter into your new project. TEISS requires quite a bit of data entry, is there any way you can save yourself from entering all that data again?
The answer is YES. TEISS has a function that allows you copy all the information from a previous year's inventory into a new year's project. Once that is done, you can modify the new year's project by adding sources, updating activity data and recalculating emissions based on the new data for the new project.
 TEISS Exercise: Let's practice how to use this function using the Case 1 project. Launch TEISS and open your Case 1 project. Notice the Inventory Year drop down list and button on the toolbar.
Click on the Inventory Year button to open the Inventory Years dialog box.
Click on the New Inventory Year button to add a new year. This will start the New Inventory Year Wizard, which will guide you through the steps of creating a new project year.
!!Note: The 2nd screen of the new inventory year has two radio buttons, allowing you to choose between:
- Copy inventory data from existing year
- The new inventory year will be created without any inventory data
Copy the inventory data from the existing year, if your new inventory will be based on an old TEISS project that contains most of the information on your reservation's sources and you just want to update the emissions estimates and maybe add a couple sources.
Create the new inventory year without an inventory data if you want to start from scratch. By choosing this option, TEISS will save your map settings, but will start you out with a completely empty outline.
TEISS Exercise: Add a new inventory year, 2002, to your Case 1 project and copy the data forward from the existing year.
Once you have added your new inventory year, you can switch between the years at any by using the drop down list on the toolbar.
By storing several year's EIs in one TEISS project, you can easily see what the trends are in emissions on your reservation and around your reservation by using the "Total Emissions Time Series" reports in the report function. Let's take a look at them now.
Click the Reports button on the main toolbar. When the Reports window is open, scroll down until you see the Total Emissions Time Series reports listed.
TEISS Exercise: Chose the Point Sources report under Total Emissions Time Series. A window will pop up asking which inventory years you want to see in the report. For this example, you should have 1999 and 2002. Check the boxes for both of those years.
Note that in the location selection filter, you could select to view data from just the point sources on the reservation, or in counties off the reservation or both together. Your Case 1 project just has one counties data in it, but the figure below shows an example with counties and reservation data. In the figure below, just the tribe name is checked, so only tribal point sources would appear in the report.
You will also see the pollutant filter. For this exercise, just select one pollutant to graph.
Because we just copied the 1999 data forward to the 2002 project and did not make any changes or additions to it, the report you will see will show a straight line. The straight line indicates that the amount of the pollutant you selected being emitted by point sources in Yavapai County (the county used in Case 1) has remained the same from 1999 to 2002. The figure below shows an example of what the Case 1 time series report would look like.
!!Note: If you use the time series report on a project that contains both state and reservation data, the data from on the reservation will be plotted as a red line and the data from off the reservation will be plotted as a blue line on the same chart. This will allow you to compare the trends in emissions between your reservation and the counties you have included in your project.
End of Lesson 9.1
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