GDEDIT reads grids from a sequential edit file and adds them to a GEMPAK grid file. INPUT PARAMETERS GDEFILe/a> *Grid edit eile GDFILE *Grid file GPACK *Packing type/number of bits PROGRAM DESCRIPTION GDEDIT reads grids from a sequential text edit file and adds them to a GEMPAK grid file. The input edit file can be created using a text editor or using the OUTPUT = F option in GDLIST. Certain header information must be included before the grid data. Required information includes the grid size and the grid identifier. Scaling information may also be included. The grid size must be included on a line: COLUMNS: 1 33 ROWS: 1 14 The edit grid must begin at column = 1 and row = 1 and include the entire grid. WARNING: the edit grid size must match the size specified in the grid file. Otherwise, a fatal error is generated. The grid identifier is found on a line such as: 921027/1200F48 850 PRES DIVWND The first line containing a slash ( / ) is assumed to be a grid identifier. The order of values is: time 1, time 2 (optional), level 1, level 2 (optional), vertical coordinate, parameter name. If the data were scaled before being listed, scaling information must be included. This is of the form: Scale factor: 10**5 The scaling information is found by searching for "factor" and "**". Data follow this header information. The rows are assumed to read from the last (top) to the first. Each row of data contains: ROW 14 0.27 . . . The word ROW and the row number must be included. The row number is NOT checked to see that this is the correct row. Data for each row may wrap to the next line. An example of a grid edit file follows: Grid file: SMALL.GRD GRID: TIME1 TIME2 LEVEL1 LEVEL2 VCORD PARM 921025/0000 0 PRES TMPC AREA: DSET GRID SIZE: 7 6 COLUMNS: 1 7 ROWS: 1 6 Scale factor : 10**0 COLUMN: 1 2 3 4 5 6 7 ROW 6 -12.81 -12.40 -11.98 -11.30 -10.82 -11.18 -12.25 ROW 5 -9.89 -9.90 -9.41 -8.26 -7.00 -6.43 -6.80 ROW 4 -2.14 -2.94 -3.66 -3.43 -2.36 -1.29 -0.92 ROW 3 4.12 4.25 3.23 2.35 2.63 3.51 3.98 ROW 2 6.39 7.35 7.03 6.29 6.31 6.85 7.14 ROW 1 7.26 7.95 7.80 7.57 7.87 8.49 8.96 EXAMPLES: 1. Add the grids in the edit file GDLIST.FIL to the grid file 25DEC12Z.GRD. Do not pack the data. GDEFIL = gdlist.fil GDFILE = 25dec12z.grd GPACK = 2. Add the grid in TMPC.FIL to the grid file NMC.GRD. Pack the data using the GRIB format. Select the number of bits so that precision to two digits after the decimal place will be retained. GDEFIL = tmpc.fil GDFILE = nmc.grd GPACK = +2/dec ERROR MESSAGES [GDEDIT -1] Fatal error initializing TAE. [GDEDIT -2] Fatal error reading TAE parameters. [GDEDIT -3] Valid grid identifier not found. [GDEDIT -4] Grid size cannot be determined. [GDEDIT -5] The grid size in the edit file is incorrect. [GDEDIT -6] Error reading grid data. [GDEDIT -7] The edit file ... is invalid. [GDEDIT -8] The output grid file ... is invalid.