• Quick access to available data using:
  • the data navigation column (left column) to select data source, type or a specific data set 
  • the map to select a location of a collection station.
• Selecting a data set (single click) from the data navigation column provides a reference to the name of the site and its icon on the map increases in size so the its location is easily identified.
• Double clicking the data set on the data navigation column or on the map will open a visualization page to view the data, which is described below.

Note: This main view provides a superset of available data, however, the result of an advanced search can be saved to provide direct access to specific data subset or type. e.g. nutrients in Lake Erie & Huron, etc...

• Select the button from the source section to get more information about the source and data types available from that source.

Select a data source on the map and the corresponding source and set appears in the data navigation column.

Double-clicking on either icon (map or data nav) will open the data set to display the available visualization panel.

Once a site is selected a panel will open with visualizations that are associated with that data type. In this case, this data can be displayed in both the time series and depth profile visualizations.

• mouse over values as user explores time series graph
• display data range in a box plot
  • mean
  • threshold(s)
  • max/min
  • Eighty percentile range of data
• display 10 year trend in data

Depth Profiler

• Trend Line
  • Show the data depth range
  • Select a range to display the trend for that depth over time
  • Display 10 year trend for the selected depth.
• Distribution
  • display the range of the data collected.

From the data navigation user can explore the trends in appropriate data types.

• a particular timeframe can be selected using the slider bar.

Provides quick visual representation about the value of the data in a particular region.

Allows the user to select a data set to view the data trend over time.

Advanced search provides a context aware search environment to help simplify complex searches. The user can reduce data overload by selecting a particular region of interest (ROI), a data source, a data type or a time frame to display a subset that meets their interest.

Note: data type, attribute and parameter are synonymous and reference a particular data type like Chl-a. The EPA community typically uses the term parameter to a particular data type.

If a search parameter (location, source, type, time) is not defined then "ALL" data from that space, source, type or time frame will be returned.

Context awareness is achieved by a user selecting a ROI by drawing a polygon on the map or selecting a predefined ROI from a list. This selection will then refine the available data sources, types, and times. Additionally, if a users starts with a source or data type, then those available data points will be reflected on the map.

As the user continues to define search criteria, the system display appropriate options and visualizations that meet their inputs. Once complete, the user will have an option to save the link as Permalink for future reference, visualize the results through an "Explore" visualization or save the data set/subset in an appropriate format.

The Data Archive provides:

• Previews of data stored on the system.
• Heterogeneous data store
  • • reports, data sets, images, movies, etc….
    • Other inline previews will be available based on the data type.
      
• Dataset upload/download
• Data previews
• Tag, annotate
• Create collections
• Geospatial support
• Group access control
• Define relationships between data sets
• Define license
• Tracks provenance (who, what, when, where)
• Apply a Taxonomy
• Provides flexible data extraction of embedded information
• Provides links back to the Dashboard view of the data set
  
  

Upload interface

• drag-n-drop
• file browse
• upload status
• Add tags
• Add to collection
• Make associations