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USGS Interface

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Zach Cobell edited this page Jul 15, 2015 · 5 revisions

##Introduction The USGS interface displays all locations within the U.S. that contain surface water information. The data locations displayed on the map are retrieved from a Google Fusion table. This allows large quantities of points to be displayed without the interface getting bogged down.

There are three options for data type provided via radio buttons:

  1. Instantaneous Data - Data from the prior 120 days
  2. Historic Data - Archived data that can go back greater than 120 days
  3. Daily Data - Daily average values

##Navigation Navigation of the map is provided via the combo box at the lower left corner of the screen. This combo box can parse addresses, location names, points of interest, or just about anything you'd ask from a Google Maps query. A selection list of U.S. states is provided for convenience.

##Retrieving Data Retrieving data in the USGS interface is slightly different than within the NOAA interface. When a station, date range, and data retrieval type are selected, the user should press the "Fetch" button. When the download has finished, the "Product" combo box will populate with the available data parameters at the station. The plot will update each time a new data product is selected.

Once the plot has been generated, you may choose to zoom in on a specific area of the plot by clicking and dragging the mouse over the plot.

##Saving Plots When saving the plots of the data, two options are provided.

  1. Select the button in the lower portion of the screen that says "Save Map and Chart". This will save both the Google Map and plotted data in JPEG format
  2. Select button shown as three horizontal lines in the upper right corner of the plot. This will send a plotting request to the HighCharts server and return a high quality PNG image. Note that extremely large amounts of data may be rejected from the HighCharts server.

##Saving Data Data may be saved to the hard drive by selecting the "Save Data" button in the lower left corner of the screen. A drop down box will allow the user to select either IMEDS or CSV formatted output.

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