WWLLN Lightning Data Converter Untuk ESRI, MAPINFO, GOOGLE EARTH-er

Ini dia Langkah meng-convert data WWLLN ke Shape File GIS untuk Proses Investigasi dan Analisa Sambaran Petir ... (Untuk penggemar Map Info tinggal rubah ektension files via Universal Translatornya Map Info.. Siap untuk berkutat. (NB: Untuk Google Earth mania, rubah ekstension ke kml atau kmz atau gpx files ... Gunakan Software Standar (MapSource/Oziexplorer/Mapedit)

Langkah 1 : The WWLLN Data Converter Main Window.

Langkah 2 :The "Choose a date" method of selecting a WWLLN input file allows a user to use a drop down calendar to select a WWLLN data file from the specified date. If a file for the specified date is not available, then an error message appears and the user is given the option to browse to all available WWLLN data (.loc) files. Before an input file is specified, the file destination specifier and Create Shapefile(s) button are deactivated. These tools become activated when an input file is specified. This method allows the user to choose only one WWLLN file at a time.

Langkah 3 :The "Browse to a WWLLN Data File" method of selecting a WWLLN input file allows a user to use an Open File Dialog tool (file browser) to select a WWLLN data file for conversion. This method allows the user to chose only one WWLLN file at a time. Once an input file is specified, the Output file name specifier is activated, and then the Create Shapefile(s) button is activated.

Langkah 4:The third option for selecting a WWLLN input file for conversion is the "Browse to multiple WWLLN Data Files" option. This method allows a user to select multiple files at once for conversion. When multiple files are specified, an option under the Output Data group box is activated. The first option is to merge data files into one output shapefile and the second option is to create separate output shapefiles for each input file specified. The default option is to merge the data files. If the "Separate Output Shapefiles" option is selected, there is no option to specify an output name and the output files will use the same prefix as their input files. For example, if L20050701.loc is the input WWLLN file, then the output shapefile will be named L20050701.shp, L20050701.shx and L20050701.dbf. Since the "Merge Data Files into One Shapefile" option only outputs one shapefile, the option to specify an output file name is allowed. Then, the Create Shapefile(s) button is activated.

Langkah 5:The "Open Data Viewer" option in the Data Viewer drop down menu of WWLLN Data Converter opens a new window that contains information about the selected WWLLN input file.

Langkah 6:The "WWLLN Data Contents" Tab of the WWLLN Data Viewer window displays the contents of the WWLLN text file in separate list boxes. This feature is useful for verifying the contents of the input file. If an input file is not open at the time that the WWLLN Data Viewer is opened, the "Open New WWLLN File" will allows the user to view a specified file.

Langkah 7:The "Location Data Statistics" tab of the WWLLN Data Viewer computes basic statistics based on the contents of the currently opened WWLLN data file. The "Date(s)" field lists the date or dates contained in the file. The "Total Number of Lightning Strokes" field reports the number of records in the file. The "Average Number of Lightning Strokes per Hour" field computes the number of records per hour for hours 0-23 based on the Time column and then averages the twenty four totals. The "Average Temporal Error" field averages the values in the Standard Error column. The "Average Number of Stations Recording Each Stroke" field reports the average of the values in the Stations field of the open WWLLN data file.

Langkah 8: The FME Workbench workspace provided a simple-to-navigate GUI for converting WWLLN data files to shapefiles. The concept is similar to that of the WWLLN Data Converter program, and allowed me to create shapefiles of the WWLLN data while the WWLLN Data Converter was being written and debugged.

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