McIDAS-X Learning Guide
Version 2020

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MD Files - Listing MD File Directories and Data Records

1. Start a McIDAS session.

   At the Unix prompt:

   Type:  mcidas

   Your session should still be set for twenty frames from the last time you changed the Configuration GUI. If not, set it for twenty frames, as described in Getting Started.

2. Add a real time point server and list the point datasets available in the RTPTSRC dataset.

   Type:  DATALOC ADD RTPTSRC ADDE.SSEC.WISC.EDU

   Type:  DSINFO POINT RTPTSRC

   DSINFO POINT RTPTSRC Dataset Names of Type: POINT in Group: RTPTSRC Name NumPos Content ------------ ------ -------------------------------------- AIRCRAFT 10 Real-Time Aircraft data ETAMOS 10 Real-Time ETA Model Output Statistics GFSMOS 10 Real-Time GFS Model Output Statistics PROF6MIN 10 Real-Time 6-Minute Profiler data PROFHOURLY 10 Real-Time Hourly Profiler data PTSRCS 130 All point data in MDXX files SFCHOURLY 10 Real-Time SFC Hourly SHIPBUOY 10 Real-Time Ship and Buoy data SYNOPTIC 10 Real-Time SYNOPTIC data TEMPSHIP 10 Real-Time TEMP SHIP data UPPERMAND 10 Real-Time Upper Air (Mandatory) UPPERSIG 10 Real-Time Upper Air (Significant) DSINFO -- done

3. List the file directories for the RTPTSRC/SFCHOURLY dataset.

   Type:  PTLIST RTPTSRC/SFCHOURLY FORM=FILE ALL

   The dataset position number, schema type, number of rows and columns, and description for each MD file are listed.

   PTLIST BLIZZARD/PTSRCS FORM=FILE ALL Pos Description Schema NRows NCols Proj# Created ------ -------------------------------- ------ ----- ----- ----- ------- 1 SAO/METAR data for 30 APR 2020 ISFC 72 12500 0 2020120 2 SAO/METAR data for 01 MAY 2020 ISFC 72 12500 0 2020121 3 SAO/METAR data for 02 MAY 2020 ISFC 72 12500 0 2020122 4 SAO/METAR data for 03 MAY 2020 ISFC 72 12500 0 2020123 5 SAO/METAR data for 04 MAY 2020 ISFC 72 12500 0 2020124 6 SAO/METAR data for 05 MAY 2020 ISFC 72 12500 0 2020125 7 SAO/METAR data for 06 MAY 2020 ISFC 72 12500 0 2020126 10 SAO/METAR data for 29 APR 2020 ISFC 72 12500 0 2020119 PTLIST: Done

4. List all the MD files stored on your workstation.

   Type:  DMAP MDXX

5. List the structure and keys in the ISFC schema.

   Type:  LSCHE ISFC

   The keys, units, and scale factors for the ISFC schema are displayed as shown below. If the schema type does not exist, register the schema with the SCHE DCISFC command, and then try the LSCHE command again. See the introduction in the McIDAS User's Guide for more information.

   LSCHE ISFC NAME: ISFC VERSION: 8 DATE: 2018073 TEXTID: "SURFACE HOURLY OBSERVATIONS ---- ------- DEFAULT NUMBER OF ROWS: 240 INTEGER ID: 0 COLS: 12500 MISSING DATA VALUE: -2139062144 REPEAT GROUP: NUMBER OF REPETITIONS: 1 STARTING POSITION: 11 SIZE: 25 NUMBER OF KEYS IN ROW HEADER: 4 COL HEADER: 6 STARTING AT POSITION 5 DATA RECORD: 25 STARTING AT POSITION 11 ---- 35 TOTAL KEY SCALE UNIT KEY SCALE UNIT KEY SCALE UNIT ---- ----- ---- ---- ----- ---- ---- ----- ---- TYPE 0 DAY 0 CYD TIME 0 HMS NREC 0 ID 0 CHAR LAT 4 DEG LON 4 DEG ZS 0 M ST 0 CHAR CO 0 CHAR MOD 0 HMS 0 HMS CIGC 0 CC1 0 CC2 0 CIGH -2 FT ZCL1 -2 FT ZCL2 -2 FT VIS 1 MI WX1 0 CHAR WX2 0 CHAR T 2 K TD 2 K DIR 0 DEG SPD 1 MPS GUS 1 MPS PSL 2 MB PCP 2 IN SNO 0 IN PRE 2 MB P24 2 IN WXC1 0 CODE WXC2 0 CODE WXC3 0 CODE WXC4 0 CODE LSCHE: DONE

6. List the parameters in the first file of the RTPTSRC/SFCHOURLY dataset.

   Type:  PTLIST RTPTSRC/SFCHOURLY FORM=PARAM

   Also listed are the units, storage type and format for each parameter.

   PTLIST RTPTSRC/SFCHOURLY FORM=PARAM PARAMETER UNIT STORAGE TYPE DEFAULT FORMAT --------- ---- ------------ -------------- TYPE integer I9 DAY CYD integer I9 TIME HMS integer I9 NREC integer I9 ID character A4 LAT DEG real F9.4 LON DEG real F9.4 ZS M integer I9 ST character A4 CO character A4 MOD integer I9 HMS HMS integer I9 CIGC integer I9 CC1 integer I9 CC2 integer I9 CIGH FT real F9 ZCL1 FT real F9 ZCL2 FT real F9 VIS MI real F9.1 WX1 character A4 WX2 character A4 T K real F9.2 TD K real F9.2 DIR DEG integer I9 SPD MPS real F9.1 GUS MPS real F9.1 PSL MB real F9.2 PCP IN real F9.2 SNO IN integer I9 PRE MB real F9.2 P24 IN real F9.2 WXC1 CODE integer I9 WXC2 CODE integer I9 WXC3 CODE integer I9 WXC4 CODE integer I9 PTLIST: Done

7. List the first record in the most recent file of the dataset.

   Type:  PTLIST RTPTSRC/SFCHOURLY

   PTLIST RTPTSRC/SFCHOURLY Row : 1 Col : 1 TYPE = 0 | DAY = 2020127 CYD | TIME = 0 HMS | NREC = 8544 | ID = KEFK | LAT = 44.8888 DEG | LON = 72.2125 DEG | ZS = 283 M | ST = VT | CO = US | MOD = 0 | HMS = 235600 HMS | CIGC = _missing_ | CC1 = 1 | CC2 = _missing_ | CIGH = _missing_ | ZCL1 = 6000. FT | ZCL2 = _missing_ | VIS = 10.0 MI | WX1 = _missing_ | WX2 = _missing_ | T = 278.16 K | TD = 271.86 K | DIR = 0 DEG | SPD = 0.0 MPS | GUS = _missing_ | PSL = 1013.88 MB | PCP = _missing_ | SNO = _missing_ | PRE = _missing_ | P24 = _missing_ | WXC1 = _missing_ | WXC2 = _missing_ | WXC3 = _missing_ | WXC4 = _missing_ | --------------------------------------------------------------------------- Number of matches found = 1 PTLIST: Done

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