Risk-Targeted-Ground-Motion-Calculator-Documentation.md

+## Purpose of this Application
+The Risk Targeted Ground Motion Calculator is used to calculate risk-targeted ground motion values in accordance with “Method 2” of 2010 ASCE 7 Standard Section 21.2.1.2. Users can input a hazard curve from a site-specific analysis to obtain a risk-targeted ground motion value.
+
 ## Sample input
 
 Application input can be user-provided or drawn from the [USGS Hazard Curve Data files](http://earthquake.usgs.gov/hazards/products/). The following example incorporates the “Hazard Curve Data” file for “5Hz (0.2 Second)”; specifically the data for the coordinates (34.05, -118.25) in Los Angeles are used:
 
-### Spectral Response Acceleration Values (corresponding to the x-axis on a hazard curve):
+### Curve Title
+This is an optional input. Users can input a string of characters (such as "Office Tower at 123 Main St.") to serve as a reminder of which output values correspond to a particular structure.
+
+### Spectral Response Acceleration Values, in units of [g] (corresponding to the x-axis on a hazard curve):
 0.005, 0.0075, 0.0113, 0.0169, 0.0253, 0.038, 0.057, 0.0854, 0.128, 0.192, 0.288, 0.432, 0.649, 0.973, 1.46, 2.190, 3.28, 4.92, 7.38
 
 ### Annual Frequency of Exceedance Values (corresponding to the y-axis on a hazard curve):
 0.5855, 0.5208, 0.4389, 0.3515, 0.2679, 0.1953, 0.1376, 0.09335, 0.06027, 0.03659, 0.02096, 0.01146, 0.005985, 0.002934, 0.001287, 0.0004781, 0.0001411, 0.00003023, 0.000003828
 
+Please note that all numeric input values should be comma separated as in the above example, and all units should be removed. In addition, users must provide an equal number of Spectral Response Acceleration values and Annual Frequency of Exceedance values.
 
 ## Sample output