GridComp faq

Grid Comparison Tool instructions

http://neisgei.org/GridComp

Choosing a Dataset

There are currently 4 default datasets immediately available, but any dataset present in the datafed wiki RSS catalog may be brought into the application.

To choose a dataset from the catalog, select "Choose new dataset" from either map's dataset drop down menu. The Grid datasets from the datafed catalog will pop up in a new window.

From here, you may search for values in a number of fields, view the dataset's metadata, or select the dataset to bring it into the Grid Comparison Tool application.

Choosing a Time

Once you have selected a dataset, you will notice the time range available for that dataset and the frequency of data available below the options.

You have the option to view a single instance of this dataset, or combine data from multiple time periods. If you wish to view a single instance, set the year, month, day, and hour to an available time. NOTE: Daily, Monthly, and Yearly datasets have data recorded at the beginning of each period. For example, ABBI is a monthly dataset, thus data is only available on the first day and first hour of each month. Make sure hour is set to 0 and day is set to 1 for monthly datasets.

If you wish to select a range of dates, change the Time selection box to "Time Range". You will notice the Year,Month,Day,and Hour selection boxes are now disabled. To select a time range, use the Time filters that have appeared to the right. Use control+click to select any number of years and months available to the dataset, followed by the operation you wish to perform to aggregate the data.