EDAC Help: Searching the data catalog
In this section:
Introducing the Catalog tab
The Catalog tab allows the user to quickly search for files in the
selected dataset that match certain criteria: (i) the percent of data
coverage for a region of interest, and (ii) the date and time of the
data measurement. The catalog results show either a set of icon
previews for each matching result or a sortable list view of the
results. For any given result, the user can show the data in the View
tab, or access the data by file download or OPeNDAP form.
Components of the Catalog tab
The following figure shows the main components of the client
when the Catalog tab is selected:

- Dataset selector
- The name of the current dataset being displayed. A dataset
consists of a number of files, each of which contains data for a
specific date and time. The catalog searches only the selected
dataset for matching files.
- Region parameters
- The region and minimum coverage value to search. A region may
not contain data for a given date and time because of a variety of
factors: cloud cover over the region obscuring the surface, ice,
rain, the region is beyond the satellite scan path, etc. Only data
with coverage above the specified minimum value in the selected
region will be reported.
- Date/time parameters
- The date and time range to search. Only data files whose
starting date/time fall within the specified time range or past
number of days are reported.
- Catalog results
- The results of the most recent search. The message at the
bottom of the results panel may indicate zero matches if none were
found in which case the search parameters should be relaxed.
Otherwise, the results panel shows either a set of preview icons for
the resulting matches or a detailed sortable list of the matches.
Double-click the preview icon or list entry to switch to the View
tab and display the data. As an alternative, users may download the
file directly or show the OPeNDAP form using the data access buttons
at the bottom (see Accessing data
files for details).
Back to overview