What is DChart
Show details Dapper (aka DChart) allows you to visualize and download the site of oceanographic and atmospheric data from a file server or OPeNDAP. Features include an interactive map, which you can drag to position the station layer that allows you to select a station data, and the window of the plot, which allows us to construct the data from one or more stations. The three types supported by the plot (profile, property, assets and time series), and users can interact directly with the plot to pan or zoom in and zoom out. Click here to try DChart.
What DChart address the problem?
Millions of in situ observations of the sea, is now available to scientists through the network protocol OPeNDAP. However, access to data is limited, because there are many web applications that support the OPeNDAP protocols.
What is the solution?
Some technologies browser Web (XHTML / CSS / DOM / XML / XSLT, and JavaScript), has matured over the last few years ago, is now possible to design OPeNDAP compatible Web applications with rich user interface than when using traditional Technologies Web.
DChart is a web application that uses this technology to interactively select, view, download, and based on observations point from Dapper, OPeNDAP servers in place. Users have access to the functionality of desktop applications in a browser on the Web, without having to download plug-ins or applets.
Screen DChart shot webpage Argo profile data access display DChart shot of the website of the National Data Buoy Center for tables with time series
Screenshot of the website to access profile data DChart Argo.
The three types supported by the plot (profile, property, assets and time series), and users can interact directly with the plot to pan or zoom in and zoom out.
Technology
JavaScript remote scripting technology, also known as AJAX (Asynchronous Java and XML), provides a solution to this problem. There are two ideas behind AJAX applications:
JavaScript is used to regenerate parts of the UI.
DChart use remote scripting to provide access to the Internet to place oceanographic and atmospheric data. Users have access to the functionality of desktop applications in a browser on the Web, without having to download plug-ins or applets.
Tags: data collections, dom xml, place users, property assets, xml xslt