WAVES, a web-based, database driven tool for oceanographic data (discrete measurements only at this time) extraction, is now available through CDIAC web page for use (http://cdiac3.ornl.gov/waves/). It lets users choose what kind of data they want to get and format. The interface has only one front page and all on-screen results are shown in a new window. The main page is divided in sections that help to navigate and keep different types of parameters grouped. In Query Parameters section users can set up searches for criteria and limitations. Single parameters, for example temperature from/to: 25oC, can be used as well as a range of parameters, e.g. temperature from: 20oC to: 25oC. The data location coordinates can be entered manually or by dragging a box on the map (icon with "i"). Map is tightened to Geographical Region, Section, and Cruise ID drop-down-menus and all changes are reflected on the map.
The output parameters section has list of all variables that can be extracted from the database. By clicking a checkbox next to the variable name, users may choose parameters that they need or chose all parameters clicking on "Check All" box. The format in which requested information will be presented is set up in the Output Form section. Users have options to get it as an on-screen table, as a downloadable file (CSV, TSV, NetCDF formats), or as an on-screen property-property plots.
The interactive map is designed to provide the metadata information which displayed in the clickable Metadata section by using an Information mode (icon with "i"). Users can receive metadata information by clicking on a cruise line, or by dragging a box in the research area of the map. The access to metadata provided through the same interface uses the background connection to metadata search engine Mercury. The map has also a Navigation mode (icon with palm). In Navigation mode, users can move map around (by dragging), zoom it in (icon with +), zoom it out (icon with -), and see the whole extend (icon with an arrow).