McIDAS-X Learning Guide
Version 2020

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ADDE - Getting Started

1. Start a McIDAS session.

   At the Unix prompt:

   Type:  mcidas -config

   Your session should still be set for six frames from the last time you changed the settings in the Configuration GUI. Set it for twenty frames, save the settings as described in Getting Started.

2. List your client routing table's groups and associated server IP addresses.

   Type:  DATALOC

   If this is the first time you are using the ADDE, the table is empty and the following listing is displayed.

   Group Name Server IP Address -------------------- ----------------------------------------

3. Modify your client routing table so that commands requesting data from a real-time dataset containing free data from Unidata. The group RTGOESR is routed to the Unidata remote server with the IP address ADDE.UCAR.EDU.

   Type:  DATALOC ADD RTGOESR ADDE.UCAR.EDU

4. List all datasets in the group RTGOESR.

   Type:  DSINFO ALL RTGOESR

5. List all datasets of type IMAGE in the group RTGOESR.

   Type:  DSINFO I RTGOESR

   Note that instead of the full word, 'IMAGE,' only an I is used. Each parameter in DSINFO can be abbreviated with its first letter instead of writing it out in its entirety.

   The first part of the listing is displayed below. The NumPos value is the number of positions in the dataset. When setting up servers with newer data types, NumPos of 99999 usually means that the server can access an unlimited number of files on the remote machine.

   Dataset Names of Type:  IMAGE in Group:  RTGOESR Name NumPos Content ------------ ------ -------------------------------------- CONUS 99999 GOES-East CONUS all bands CONUSC01 99999 GOES-East CONUS 0.47 um VIS aerosol-over-land CONUSC02 99999 GOES-East CONUS 0.64 um VIS clouds fog/insol/winds CONUSC03 99999 GOES-East CONUS 0.86 um Near IR veg/burn scar/aerosol CONUSC04 99999 GOES-East CONUS 1.37 um Near IR cirrus cloud CONUSC05 99999 GOES-East CONUS 1.61 um Near IR cloud phase/snow CONUSC06 99999 GOES-East CONUS 2.24 um Near IR land/cloud vege/snow CONUSC07 99999 GOES-East CONUS 3.89 um IR Sfc/cloud/fog/fire/winds

6. List the 11 most recent images in the dataset RTGOESR/CONUSC13 in reverse chronological order.

   Type:  IMGLIST RTGOESR/CONUSC13.-10

   The following listing is a sample of what is displayed. The Pos value is the absolute position of the image in the dataset. The image listed first is the most recent image, relative position 0. The next image is the second most recent image, relative position -1...

   Image file directory listing for:RTGOESR/CONUSC13 Pos Satellite/ Date Time Center Band(s) sensor Lat Lon --- ------------- ------------ -------- ---- ---- ------------ 576 GOES-16 16 SEP 19259 02:16:14 30 87 13 575 GOES-16 16 SEP 19259 02:11:14 30 87 13 574 GOES-16 16 SEP 19259 02:06:14 30 87 13

7. List the two most recent images (positions 0 and -1) in the dataset RTGOESR/FD (all bands are included in this dataset) with expanded information on the available Band (1).

   Type:  IMGLIST RTGOESR/FD.-1 BAND=1

   The following listing is an example of what is displayed. The Pos value is the absolute position of the image in the dataset. The Res values are the resolution of the images' center pixels.

   Image file directory listing for:RTGOESR/FD Pos Satellite/ Date Time Center Res (km) Image_Size sensor Lat Lon Lat Lon --- ------------- ------------ -------- ---- ---- ----- ----- ------------ 192 GOES-16 16 SEP 19259 02:10:17 0 75 Band: 1 0.47 um VIS aerosol-over-land 1.00 1.00 10848 x10848 191 GOES-16 16 SEP 19259 02:00:17 0 75 Band: 1 0.47 um VIS aerosol-over-land 1.00 1.00 10848 x10848 IMGLIST: done

8. Create the aliases G16C and G16FD for the dataset names RTGOESR/CONUS and RTGOESR/FD.

   Type:  AKA ADD G16C RTGOESR/CONUS

   Type:  AKA ADD G16FD RTGOESR/FD

9. List the aliases in your client routing table.

   Type:  AKA

   The following listing is displayed.

   Alias Name Group/Descriptor -------------------- ---------------------------------------- G16C RTGOESR/CONUS G16FD RTGOESR/FD

10. Display the most recent image in the dataset with the alias name G16C. Display the image on frame 1, band 13, centered on Athens, Georgia, and draw a map on it. The AKA listing in step 9 shows that the alias G16C represents dataset RTGOESR/CONUS.

    Type:  IMGDISP G16C 1 BAND=13 STATION=KAHN SF=YES;MAP VH 2

11. Assign the dataset name MYDATA/IMAGES to all of the areas available on your local workstation.

    Type:  DSSERVE ADD MYDATA/IMAGES AREA 1 9999 "ALL AREA FILES

12. Use the IMGLIST command to find five empty areas on the local server.

    Type:  IMGLIST MYDATA/IMAGES.4000 4004

    
    If data exists in this block of areas, move or delete the areas or use the IMGLIST command to find an empty block of 5 areas.

13. Assign the dataset name MYDATA/TEST-IMAGES to the empty block of areas.

    Type:  DSSERVE ADD MYDATA/TEST-IMAGES AREA 4000 4004 "Scratch areas for testing

    A listing similar to the following is displayed.

    Group/Descriptor Type Format & Range RT Comment ------------------------ ----- ------------------ -- -------------------- MYDATA/IMAGES IMAGE AREA 1-9999 ALL AREA FILES MYDATA/TEST-IMAGES IMAGE AREA 4000-4004 Scratch areas for testing

14. List the groups in your client routing table.

    Type:  DATALOC

    A listing similar to the following is displayed.

    Group Name Server IP Address -------------------- ---------------------------------------- RTGOESR ADDE.UCAR.EDU MYDATA <LOCAL-DATA> <LOCAL-DATA> indicates that data will be accessed from the local data directory.

15. Create the alias TI for the dataset name MYDATA/TEST-IMAGES.

    Type:  AKA ADD TI MYDATA/TEST-IMAGES

16. List the aliases in your client routing table.

    Type:  AKA

    The following listing is displayed.

    Alias Name Group/Descriptor -------------------- ---------------------------------------- G16C RTGOESR/CONUS G16FD RTGOESR/FD TI MYDATA/TEST-IMAGES

17. List all the images in the dataset with the alias name TI. The AKA listing in step 16 shows that the alias TI represents dataset MYDATA/TEST-IMAGES.

    Type:  IMGLIST TI.ALL

    The following output is displayed because the dataset has no images.

    Image file directory listing for:TI IMGLIST: No images satisfy the selection criteria

18. Copy the most recent image in the dataset with the alias name G16C to position 5 in the dataset with the alias name TI. Copy band 13 and place Athens, Georgia, at its center. The AKA listing in step 16 shows that the aliases G16C and TI represent datasets RTGOESR/CONUS and MYDATA/TEST-IMAGES.

    Type:  IMGCOPY G16C TI.5 STATION=KAHN BAND=13

19. List all the images in the dataset with the alias name TI.

    Type:  IMGLIST TI.ALL

    An example of the listing is displayed.

    Image file directory listing for:TI Pos Satellite/ Date Time Center Band(s) sensor Lat Lon --- ------------- ------------ -------- ---- ---- ------------ 5 GOES-16 16 SEP 19259 02:10:17 34 83 13

20. In addition to the MYDATA/TEST-IMAGES local area file dataset, you can setup local datasets as defined in the DSSERVE help section. In the following exercises you will access GOES-R Series netCDF format files with the IMG* commands by using DSSERVE to assign a dataset name to the files. When doing so, specify "ABIN" in the format parameter, TYPE=IMAGE, and the directory and file masks in the DIRFILE keyword. The files in this exercise are mission-standard Level 1b or Level 2 files in netCDF-4 format, like those from NOAA CLASS or from the GRB data stream after they've been decoded with CSPP Geo or other software. The names of files should look similar to ABI-L1b-RadC-M3C01_G16_s2015229195720.nc (current CSPP Geo naming convention) or OR_ABI-L1b-RadC-M4C16_G16_s20151702215532_e20151702220362_c20151702220394.nc (GOES-R Ground System naming convention).
    
    

    Use ftp via web browser or command line instructions below to download the following three files:

    OR_ABI-L1b-RadC-M3C02_G16_s20180041657204_e20180041659577_c20180041700012.nc
    OR_ABI-L1b-RadC-M3C14_G16_s20180041657204_e20180041659577_c20180041700023.nc
    OR_ABI-L2-TPWC-M3_G16_s20180041657204_e20180041659577_c20180041701161.nc
    
    
    
    ftp ftp.ssec.wisc.edu
    login: anonymous
    password: your email
    binary
    prompt
    cd pub/mug/Data/ABI/NetCDF
    mget *.nc
    exit

    Create a local dataset with DSSERVE to access the 2 *RadC* ABI netCDF files on your local machine in the directory, <local-path>/Data/ABI/NetCDF.

    Type:  DSSERVE ADD ABI/CONUS ABIN TYPE=IMAGE DIRFILE='<local-path>/Data/ABI/NetCDF/*RadC*'

    List the most recent image in the dataset (the default is position 0, so it doesn't need to be specified).

    Type:  IMGLIST ABI/CONUS

    Datasets can be organized however the user chooses. Make a dataset that includes all of the files in the data directory.

    Type:  DSSERVE ADD ABI/DATA ABIN TYPE=IMAGE DIRFILE= '<local-path>/Data/ABI/NetCDF/*'

    IMGLIST can list the image directory and band information with the FORM=ALL keyword. Your IMGLIST command should match the image.

    Type:  IMGLIST ABI/DATA.ALL FORM=ALL

    

    Another IMGLIST keyword, FORM=BAND, lists the band and resolution without the file’s expanded listing.

    Type:  IMGLIST ABI/DATA.1 BAND=2 FORM=BAND

    Exit McIDAS.

    Type:  EXIT

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