The
EPIC Web Browser is Web application that
provides interactive on-line data access to
EPIC
hydrographic data sets. It allows user to view the oceanographic in-situ
data by creating plots on-the-fly, generating listings, data downloading
etc.
The EPIC Web Browser consists of a set of perl routines which
initiate back-end database access, invoke the EPIC programs to make
the plot or data listing, and generate the results page dynamically.
These routines are designed to be called as CGI-scripts, either with
the POST or GET command. Alternatively, the scripts can also be called
from inside other perl programs. Graphics are generated with the PPLUS
package and Meta-files from PPLUS are converted to GIF-forma
with m2gif
. The EPIC Web Browser version 2.0 implements JavaScripts
and Java Applets to provide highly user interactive data selection
features.
The EPIC Web Browser is the analysis tool behind our Web-based
interface to PMEL data. Another example is the Coastal
Marine time series data from USGS.
The following functions are avavilable (as of January 2000):
-
Plot (T,S,Sigma-t,Ox) vs. Pressure/Depth
-
Plot Temperature vs. Salinity
-
Plot user-selected Property vs. Pressure/Depth
-
Plot two user-selected Properties against each
other
-
List data-file in ASCII format
-
Download data-file in binary (EPIC/netCDF) format
-
View meta-data/attributes of data-file
-
Edit pointerfile (= data-file selection)
-
Download pointerfile (only for in-house users)
-
Plot Station Locations
-
Make vertical section plots
The EPIC Web Browser is developed by EPIC
team. (This Web site design including JavaScripts and Java Applets
in EPIC Web Browser version 2 as well as back-end database implemented
are written by Willa Zhu. If you have technical questions about EPIC
Web Browser or comments about this web site, please send email to
epic@noaa.gov
.)
