Web Guide : Search
There are four main kinds of search:

Dataset List   A unified list of known data sources maintained at UCAR

GCMD   NASA's Global Change Master Directory

Favorites   Datasets that you have asked to be in your favorite's list

Recent   Datasets you have recently used

 Using a Search Interface
The basic idea is the same for all four of the search panels. You search for a dataset you are interested in, select it and then click the red "To Retrieve" button. The button is red with a network icon to indicate that when you click it you will be doing a network access.

A shortcut in all the search panels is to double-click the desired dataset. This has the same effect as clicking the "To Retrieve" button.

 Using the Dataset List
The dataset list search interface looks like this:


On the left side is a directory tree showing various organizations and their data. On the right is an information pane. When you select a given dataset information about will appear in the information pane.

The "To Retrieve" button located in the upper left is used to move the dataset to the retrieve pane where you can get get data out of it.

You can search the entire tree by entering a word in the search box and clicking the "Search" button. This will winnow the tree so that it contains only nodes with the requested word. If you search returns no matches the tree will be unchanged and a message will appear in the status bar at the bottom of the screen announcing that there were no matches.

To return to the entire tree make the text box blank and click the search button.

There is also a button "Refresh Dataset List". This will go out onto the network and retrieve the most recent version of the dataset list available from UCAR.

 Using the GCMD
The GCMD search interface looks like this:


It has two tabs: Free Text and Keyword search.

In the screen shot the user has done a free text search on the word "aerosol" and the results that were returned are shown in the list in the middle. When a result is selected you can click the "Get Summary" button to get further textual information about the dataset which appears in the lower pane of the screen.

In addition to using search text you can constrain the results geospatially and temporally. To get information about doing this see the web guide on the

Geospatial Panel

OPeNDAP Data Connector Web Guide - Search · Revised 28 May 2004 ·