EEMS Online Tim Sheehan Mike Gough

EEMS Environmental Evaluation Modeling System Your question, your model! Site Sensitivity, PNW Site Sensitivity, Utah and CO Plateau Water Recharge, Santa Barbara, CA Connectivity Value, Modoc, CA Intactness, California

EEMS What is it? A modeling framework for Arc  NetCDF  CSV  Data Basin  EEMS Online Combines different types of data to answer a question or produce a metric over a landscape Example: Where is soil suitable for my PNW vegetation species of concern? Let’s look using EEMS Online

EEMS Online www.eemsonline.org Click here

EEMS Online www.eemsonline.org Select this model

The Example Model

The Example Model Display map layer corresponds with selected model node

The Example Model Let’s look at the EEMS model

Simple Soil Value Model Soil depth and available water capacity combine to make the soil suitable for our purposes.

Step 1: Start with your input data We start with input data sets (a.k.a. raw data)… Depth to Bedrock (cm)

Step 2: Normalize Input Values We start with input data sets (a.k.a. raw data)…And normalize them for use in the model.

Step 2: Normalize input values What do we mean by “Depth to bedrock is high”?

Soil Depth Conversion (Soil is Deep) 1 If you are concerned with a relatively shallow-rooted plant, 10 cm or less might be considered not deep, and 30 cm or greater might considered deep Soil is not deep -1 10 20 30 40 50 60 70 80 Soil Depth (cm)

Soil Depth Conversion (Soil is Deep) 1 For a deep-rooted plant 20 cm or less might be considered not deep and 60 cm or greater might be considered deep. Soil is not deep -1 10 20 30 40 50 60 70 80 Soil Depth (cm)

Step 3: Combine Values What is the relationship among values feeding into the node that will produce the answer to our question?

Step 3: Combine Values If one of the inputs is sufficient, take the highest input value (OR operation). If all inputs are required, take the lowest input value (AND operation). If all values contribute, take the average of the inputs (UNION operation). More complex relationships can use more sophisticated operations.

Using EEMS Online Changing the normalization values Click the node to see its map layer

Using EEMS Online Changing the normalization values The map is the same as the top level node’s because depth to bedrock yields the highest values

Using EEMS Online Changing the normalization values Click on the gear icon to get information about the node

Using EEMS Online Changing the normalization values Kind of Normalization Distribution of values Normalization values

Using EEMS Online Changing the normalization values Change to 60 and 20, then click OK

Using EEMS Online Changing the normalization values Yellow bar indicates change Click to run model with change

Using EEMS Online Changing the normalization values Changed values shown in map

Using EEMS Online Changing the normalization values Toggle between original results and new results

Using EEMS Online Changing the normalization values Toggle between original results and new results

Using EEMS Online Changing the operator Back to the original model

Using EEMS Online Changing the operator Click on the top node’s gear icon

Using EEMS Online Changing the operator Take note of the distribution Change “Fuzzy Or” to “Fuzzy And”, click OK and run the model

Using EEMS Online Changing the operator The map reflects the effect of using the AND operator

Using EEMS Online Changing the operator Take note of the distribution So does the distribution Change “Fuzzy Or” to “Fuzzy And”, click OK and run the model

Using EEMS Online Exploring model results Click on a location

Using EEMS Online Exploring model results Read the associated value for each node

Using EEMS Online Exploring model results We can see for this location, Available Water Capacity is High is driving the results.

Using EEMS Online Other features Zoom in or out Select base map Adjust map transparency

Using EEMS Online Other features Select map layer quality for new run Full screen view of model Get a link (url) to share model

Using EEMS Online Other features Download jpeg image of model Slider to adjust size of model viewer pane Download package of data, graphics, and EEMS model

Q & A Q: Can you tell me more about the modeling methods EEMS uses? A: Most EEMS models use fuzzy logic. Other operators, such as sum, difference, weighted sum, mean, and weighted mean are available.

Q & A Q: Is there a model size limit? A: No, the example I used had a total of 5 nodes and three levels. Models can have as many nodes and levels as needed. Full model for California Site Sensitivity

Q & A Q: How can I combine the results of models? A: Any EEMS model can be used as a branch of another model. Currently, models cannot be combined in EEMS online. That has to be done in the environment where the model is created.

Q & A Q: Can I create a model from scratch in EEMS Online? A: Not yet. Our future plans include a version that allows a user to build a model from scratch, starting with data inputs and adding nodes. We are currently looking for funding opportunities that will allow us to do this.

Q & A Q: Where can I get EEMS? A: The Arc version is available on CBI’s EEMS web page go to: https://consbio.org/products/tools/environmental-evaluation-modeling-system-eems And click on downloads. For the NetCDF of CSV version contact me: Tim Sheehan (tim@consbio.org)

Q & A Q: Is there a publication? A: There sure is: Sheehan, T., & Gough, M. (2016). A platform-independent fuzzy logic modeling framework for environmental decision support. Ecological Informatics, 34, 92-101.