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How do I determine what projection a model has been set to? I have received a WaterGEMS model from another consultant and need to figureout what coordinate system it is in.
1) Load the layer in ArcMAP.
2) Right click on it, in the Table of Contents (layers) and go to the properties.
3) On the source tab, it should say what the projected coordinate system is and what geographic coordinate system the model is in.
4) If it says it is undefined, then in the catalog you will have to lace the file in the tree view on the left and left click on it to highlight it and view the contents.
5) When you do this, there are 3 tabs. You are going to want to click on the metadata tab and then within that there are another 3 tabs.
Click on the Spatial tab.
6) If there is still no coordinate system in that tab, then you can try to look on the description tab and try to find out where the data came from.
WaterGEMS For ArcGIS [FAQ]