[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[McIDAS #TSV-261063]: Using McIDAS-V to access SSEC's Open Archive



Hi Jane,

re: access to SSEC's Open Archive of satellite imagery
> Everything was successful until I clicked on connect and a small window
> pooped up saying
> 
> "Could not connect to dataset "OGOES11" on server "openarchive.ssec.wisc.edu"
> 
> Dataset may require ADDE accounting information"

Hmm... I don't understand this failure, but it likely means that either
the IP address that is seen on the Open Archive side is different from
the one that they have allowed, or there is some configuration problem
or inconsistency in the allow setup.

re:
> Please advise!

Not to worry, an alternative way of connecting was setup for you!

Here goes:

The Data Center folks setup a user name and project number that can
be used in case there were any problems with the IP authentication
access to the Open Archive.  The information is:

User Name:      xxxx
Project Number: xxxx

When using this access route, one has to "point" to a server that
is different from openarchive.ssec.wisc.edu:

Server:         geoarc.ssec.wisc.edu

Given that you have already setup OGOES11 and, presumably, OGOES15
in McIDAS-V, you have to use a new tool to reconfigure access:

- start McIDAS-V

- click on the Tools dropdown menu in the view (i.e., not Data Explorer)
  window and select Manage ADDE Datasets

  This will bring up a new window that lists all of the datasets for
  which your McIDAS-V session is configured.

- scroll through the Datasets listed in the Remote Data tab and find
  the two entries that list openarchive.ssec.wisc.edu

  You will need to edit each entry one at a time.

- click on the first openarchive.ssec.wisc.edu entry and click on 
  the Edit Dataset button at the bottom of the window

  This will pop-up a new window/dialog in which you can modify
  settings for the Dataset selected.

- change the Server: from openarchive.ssec.wisc.edu to geoarc.ssec.wisc.edu

- click on the Specify accounting information: checkbox

- set the Username: to SJSU

  Make sure to leave the Automatically capitalize dataset and user name
  checked!

- set the Project #: to 2163

- make sure that the Image checkbox is checked the Dataset Types 
  section

- click on the Save Changes botton

- repeat the above steps for the other dataset you setup (presumably
  OGOES15 if the first one you worked on was OGOES11)

- click on the OK button at the bottom of the ADDE Data Manager window
  to close it

- test your changes by trying to access imagery from the Data Explorer ->
  Satellite -> Imagery UI

  The Server should show up as geoarc.ssec.wisc.edu, and the Dataset:
  dropdown should list should contain OGOES11 and OGOES15 

  Select either OGOES11 or OGOES15 and then click on the Connect button.
  This should then cause your McIDAS-V session to contact the 
geoarc.ssec.wisc.edu
  server and request a list of types of image that are defined.  As a first
  test, I would select FD - GOES11 FD (Full Disk).  NB: full disk scans are
  only available every 3 hours!

  A new dialog window will pop-up asking you to Please select a day for this
  dataset:  Here is where you will need to know the specific dates of
  the case studies you want to work on.  Since I don't know the exact dates
  of interest to you, I typed in:

  June 2, 2008

  and then clicked on the OK button.

  I then clicked on the Absolute tab of the Times section to see a list of
  times that the FD images are available -- there are 8: 0, 3, 6, 9
  12, 15, 18 and 21Z

  Select one of the images in the list of times on the right.  I chose 15Z.

  Leave the Navigation: dropdown and Preview: checkbox at the bottom left
  the way that they are displayed.

  Click on the Add Source button at the lower right.

  This will cause your McIDAS-V session to contact the ADDE server on
  geoarc.ssec.wisc.edu and get information for the image selected.  It
  will then switch your Data Explorer view to the Field Selector
  tab.

  At this point, you will have to decide which image band (wavelength
  channel) you want to look at.  I suggest starting with the thermal IR
  channel - 10.7 um Surface/Cloud-top Temp.  Why?  Because IR channels
  will always have values unlike the VIS channel that will only have
  values during the day.

  Click on the selector widget for the 10.7 um IR Field; this will
  show a list of ways the data can be displayed: Raw, Radiance,
  Temperature and Brightness.  I suggest starting out by selecting
  Brighness, so click on Brighness.

  This will cause your McIDAS-V session to go back to the server and
  get data and metadata that will be used to populate information
  in the Displays and lower window on the right hand side of the
  Field Selector UI.

  Click on the Region tab in the lower right hand box, and you should
  see a "thumbnail" of the full disk scan selected.  You can chose
  a subregion of this image by holding down the Shift key while
  dragging your mouse while pressing mouse button-1 (typically
  the left button).  Select a region that approximates your area
  of interest.

  Click on the Create Display button.

  This will cause your McIDAS-V session to go back to the server
  and get the data in the region you selected.  The image will
  be shown in your View window.

  If you don't like the region you chose, click on the disk
  icon (just to the right of the padlock icon) for the display
  in the Legend section of the View.  This will remove that view.
  Next, click on the Field Selector tab of the Data Explorer, and
  go back to the Region tab and select a new region.

  For finer control over the region you want to select, visit the
  Advanced tab in the Field Selector tab of the Data Explorer
  window.  This interface allows you to specify the region you
  are interested in by specifying a location (e.g., Location: Center
  and Lat: and Lon:), size (i.e., vertical size and horizontal size)
  and Magnification: factor.  The Magnification represents the
  sampling of the original image.  The highest possible sampling
  value is 1 which means get every pixel from the original image.
  A Mag value that is less than 1 specifies the sampling specified:
  -2 means ever other pixel; -3 is every third pixel; etc.

  At this point, you will need to play around to find out how high
  of a resolution meets your needs, and how large an area you
  want.

Let's catch up after you have gotten this far...

re:
> Fa'afetai,

Google to the rescue: Fa'afetai fo'i (?)

Cheers,

Tom
--
****************************************************************************
Unidata User Support                                    UCAR Unidata Program
(303) 497-8642                                                 P.O. Box 3000
address@hidden                                   Boulder, CO 80307
----------------------------------------------------------------------------
Unidata HomePage                       http://www.unidata.ucar.edu
****************************************************************************


Ticket Details
===================
Ticket ID: TSV-261063
Department: Support McIDAS
Priority: Normal
Status: Closed


NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.