From:���������������������������������������� Patrick Cruce [pcruce@igpp.ucla.edu]

Sent:������������������������������������������ Thursday, March 24, 2011 10:19 AM

To:���������������������������������������������� Lydia Philpott

Cc:���������������������������������������������� David King

Subject:������������������������������������ Fwd: ASI and GMAG Station Lists

Attachments:������������������������� THEMIS_ASI_Station_List.xls; THEMIS_GMAG_Station_List.xls

David wants me to turn this task(forwarded message below) over to you.   The associated documents are attached.  There are definitely a bunch of gmags missing.  Essentially all the Greenland/Denmark/Norway stations that we added last year and the 4 stations from university of Athabasca.    I think that the way to go about this task is to look at the data stations in this directory:
http://themis.ssl.berkeley.edu/data/themis/thg/

There should be data in the greenland_gmag, l1 & l2 directories.    You can cross-reference the station lists with the attached documents to find new stations.   You should probably assume that all the stations that aren't already marked as inoperative are operative. (You could try looking at the data in the directories or see if there is any 2011 data, but there are some download issues that are still being resolved so you might get a false positive)

To find their latitudes and longitudes you can look at the CDF metadata.   You can either do this by downloading a CDF file and reading it with skteditor
http://sscweb.gsfc.nasa.gov/skteditor/
Or you can download the data using thm_load_gmag and read it by using
get_data,'varname',dlimit=dl
help,/str,dl.cdf

If the data is unavailable in the cdf you can look for the data provider website and try getting infomation from there or contacting the contact.  The one thing you can't do is just grab the latitude and longitude off of google maps.  Even though the gmag might be named after a town they're often not placed that close to their namesake.

I used to get the geomagnetic coordinates from this site:
http://modelweb.gsfc.nasa.gov/models/cgm/cgm.html
But they moved the modelweb site, so you'll have to track the site down at its new location.(use google)  If you have latitude and longitude, you can use those to get the geomagnetic coordinates.  If you don't have elevation, assume 0(sea level)

That should be it, Let me know if you have more questions,
pat

-------- Original Message --------

Subject:	ASI and GMAG Station Lists
Date:	Wed, 5 Nov 2008 13:23:00 -0800
From:	David King <dking@ssl.berkeley.edu>
To:	<jimm@ssl.berkeley.edu>, "'Patrick Cruce'" <pcruce@igpp.ucla.edu>, "'Aaron Flores'" <FloresAA@igpp.ucla.edu>

Folks,

Some info is missing on these lists (e.g. Lat & Long)

yet it maybe still helpful. Let me know if you

have any questions. Let me know if you need a pdf.

Thanks, David