Working Group I.2 of IAGA - Electromagnetic Induction in the Earth ================================================================== Electronic Newsletter #21: April 1998 ------------------------------------- Previous newsletters: enews.Oct92 - 1st enews.Jan93 - 2nd enews.Feb93 - 3rd enews.Oct93 - 4th enews.Feb94 - 5th enews.Mar94 - 6th enews.Jun94 - 7th enews.Aug94 - 8th enews.Sep94 - 9th enews.Jun95 - 10th enews.Oct95 - 11th enews.Dec95 - 12th enews.Jun96 - 13th enews2.Jun96 - 14th enews.Dec96 - 15th enews.Feb97 - 16th enews.May97 - 17th enews.Jul97 - 18th enews.Oct97 - 19th enews.Dec97 - 20th enews.Apr98 - 21st (this one) This is the twenty-first electronic newsletter for our group. A newsletter will be sent around when there is enough material, or a special event about to come up, to warrant distribution. Not all of us in the working group have access to an email address; if you are aware of colleagues who are not likely to receive this newsletter, please give them a paper copy (but chastise them for using trees instead of electrons). Also, please forward this to colleagues who may not yet be on my email list and ask them to forward their address to me. Copies of previous electronic newsletters can be obtained from either the MTNet WWW site or by anonymous ftp login to www.cg.nrcan.gc.ca in directory pub/mtnet/docs. Please submit any comments/articles/news-items/gossip/corrections to jones@cg.nrcan.gc.ca. I am particularly looking for meeting and conference reports, papers (EM and non-EM) in the news, high impact EM studies, etc. Contents: >>>21.1 Sinaia workshop >>>21.1.1 Sinaia deadlines >>>21.1.2 Abstract submission >>>21.1.3 Sinaia financial support requests >>>21.1.4 Sinaia reviews >>>21.2 MT-DIW4 Details >>>21.2.1 Kayabe dataset >>>21.3 New EM books published >>>21.3.1 Advances in Deep Electromagnetic Exploration >>>21.3.2 The Equatorial Electrojet >>>21.4 MT grant for research in Developing countries >>>21.5 Geotools Users mailing list >>>21.6 MTNet mailing list >>>21.7 MTNet updates >>>21.7.1 New release of Egbert's processing codes >>>Appendix: Email list IMPORTANT DEADLINES:.. APRIL 15 1998: SINAIA ABSTRACT DEADLINE SINAIA FINANCIAL SUPPORT REQUEST DEADLINE -------------------------------------------------------------------------------- >>>21.1 Sinaia workshop ====================== Keep checking the MTNet Sinaia web page at http://www.cg.NRCan.gc.ca/mtnet/workshops/sinaia/sinaia.html for continual updates. >>>21.1.1 Sinaia deadlines -------------------------- Here are the deadlines for the Sinaia workshop: ABSTRACT SUBMISSION - APRIL 15, 1998 REGISTRATION - APRIL 15, 1998 SUPPORT APPLICATION - APRIL 15, 1998 REVIEW PAPER SUBMISSION - JUNE 15, 1998 CANCELLATION - JUNE 1, 1998 >>>21.1.2 Abstract submission ----------------------------- You must send your abstract to Dumitru Stanica by APRIL 15 1998 to be sure of your presentation being included in the workshop programme. The abstract should be submitted in plain text form (ASCII), via e-mail to: ===================== stanica@igr.sfos.ro ===================== Each abstract must includes, not more than 200 wards, the title, author(s) and affiliation, address, e-mail address and the session for which the paper is intended, oral/poster presentation. Those who find difficulty to send via e-mail may send via fax or postal to: 14-th WORKSHOP ON ELECTROMAGNETIC INDUCTION IN THE EARTH C/O DUMITRU STANICA Geological Institute of Romania 78344 Caransebes Str., 1, Bucharest 32, Romania FAX: 40-1-2240404 PHONE:40-1-6657530 Please do NOT send abstracts to Alan Jones, unless they form part of the financial support request. >>>21.1.3 Sinaia financial support requests ------------------------------------------- All requests for support, preferably by email, are to be directed to the Chairman of the Financial Support ad hoc Committee, Alan Jones (jones@cg.nrcan.gc.ca) . Dr. Alan G. Jones Geological Survey of Canada 1 Observatory Crescent Ottawa, Ontatio, K1A OY3 CANADA fax: +1-613-992-8836 The request must reach Alan Jones on or before April 15th 1998. Requests received after that date cannot be entertained, as decisions must be made in time for supported participants to book the cheapest possible airfares. The principle aim of the support funds is to enable as many students and young scientists as possible to attend our workshops. A few established scientists may be supported, particularly if they were unable to attend either the 1994 Brest workshop or the 1996 Onuma workshop. Realistically, there is little likelihood of our being able to support established scientists from financially-advantaged countries (western Europe, U.S.A., Canada, Japan, Australia, New Zealand). Those of you in eastern Europe should investigate receiving support through the bi-lateral arrangements between your country and Romania. Contact Dumitru Stanica for more information. For the Onuma meeting, the following criteria were used to establish those cases most worthy of support: 1. No support if supported for either of the last two workshops. The philosophy here is obviously to spread the funds around. 2. Only "one" person per institute supported for airfare, registration, accommodation, and food. The philosophy here was to ensure that representation from as many institutes as possible occurred. We did not decide which "one", but asked those who came from the institute to decide, pointing out that they could share the support (one taking the airfare, another taking the accommodation, etc.). In all but one case this resulted in all those who applied from the same institute being able to find other means of support and to attend the workshop. We do not anticipate to have the same level as support as we did for the Onuma workshop, so we will probably have to invoke other criteria as well. The following information MUST be provided for an application to be considered. Incomplete applications wll not be considered. Information Required -------------------- A request for support should include the following information:- 1. Basic information 1.1 Name, title 1.2 Precise postal address 1.2.1 Courier address if different from above 1.3 Email 1.4 Telephone (home and office) and fax numbers 1.5 Year of last degree, title, institution 1.6 Current position 1.7 Student? Yes/No 1.8 Rapid contact method? Fax? Email? 1.9 Give the latest possible date for you to have a decision by and still be able to use the funds 2. Research activities 2.1 Focus of current research activities 2.2 Most recent bibliography (5 max.) 2.3 Proposed title of presentation(s) 2.4 Brief description(s) of presentation(s) 3. Financial details 3.1 Amount of travel request with detailed cost breakdown 3.1.1 Airfare. 3.1.1.1 Is this the cheapest fare available? 3.1.1.2 When must it be booked by? 3.1.1.3 Would it be cheaper to book it from Romania and send you the tickets? 3.1.2 Ground transportation 3.1.3 Visa or other fees 3.1.4 Other costs 3.2 Do you require accommodation support? 3.3 Do you require per diem support? 3.4 Do you require registration paid? 3.5 Amount of other support provided by other sponsors 3.6 List requests to other agencies for support 3.6.1 Give date(s) when decision(s) will be made 3.7 Justification (for non-student) 3.7.1 Performing in any "official" capacity? 3.8 Do you intend to stay for the whole meeting ? YES/NO 3.9 Any previous financial support from IUGG or IAGA or Working Group to attend any workshops or assemblies? 3.10 List support (meeting, financial support given) 3.11 If financial support is not available, would you be unable to attend the meeting? 3.12 If partial financial support can be provided, could you use it? 3.12.1 Give minimum amount that would be of use to you Please note that some of the supporting agencies require the ORIGINAL receipts for travel, accommodation, etc. So keep all receipts. >>>21.1.4 Sinaia reviews ------------------------ The following sessions will be reviewed and tutored: Session 1. Environmental and engineering applications of EM techniques: The Stefanescu Symposium Reviewer: Buelent Tezkan: tezkan@geo.uni-koeln.de Session 2. Combination of EM and DC measurements for upper crustal studies Reviewer: T. Harinarayana: postmast@csngri.ren.nic.in Session 4. Continental lower crustal studies Reviewer: Fiona Simpson: fsimpson@willi.uni-geophys.gwdg.de Session 7. Lithosphere/asthenosphere interations beneath continents and oceans and their margins Reviewer: Graham Heinson: mggsh@gaea.es.flinders.edu.au Tutorial: Using satellite data for induction studies Nils Olsen, Copenhagen: nio@geb.gfy.ku.dk All of these people will much appreciate receiving material from you. Their deadline for submitting their reviews to the LOC is June 15th, so please send your material as soon as possible. -------------------------------------------------------------------------------- >>>21.2 MT-DIW4 Details ======================= The MT-DIW4 will take place on 15-16 August in Sinaia prior to the EM Induction Workshop. This year we will again examine the Kayabe dataset, plus a theoretical dataset being constructed by Ivan Varentsov that will be distributed to all interested participants soon. News of the dataset will be sent to all those who replied "4" or "3" to the MT-DIW4 question on the Sinaia questionnaire. (You can find your response on MTNet at http://www.cg.NRCan.gc.ca/mtnet/workshops/sinaia/replies.txt). If you either did not send in a Sinaia reply, or answered "1" or "2" but still wish to receive information about the MT-DIW4, please let me know. >>>21.2.1 Kayabe dataset ------------------------ There may be a problem with the Kayabe dataset that was distributed for the MT-DIW3. Scrutiny by Juanjo Ledo and myself has revealed the following problems. 1. According to the EDI files, the electrics and magnetics were not in the same coordinate system. Here is the MEAS information in the file for site KBA00... >EMEAS ID=10100 CHTYPE=EX ACQCHAN=CH1 X=-182.1 Y=683.7 Z=260.0 X2=-96.0 Y2=632.9 Z2=260.0 >HMEAS ID=20100 CHTYPE=HY ACQCHAN=CH4 X=-187.1 Y=678.7 Z=260.0 AZM=-120.5 >EMEAS ID=30100 CHTYPE=EY ACQCHAN=CH2 X=-232.5 Y=597.5 Z=260.0 X2=-181.7 Y2=683.6 Z2=260.0 >HMEAS ID=40100 CHTYPE=HX ACQCHAN=CH3 X=-177.1 Y=688.7 Z=260.0 AZM=149.50 Note that the electrode locations and mags give azimuths of: Ex = +120 Ey = -150 Hx = +150 Hy = -120 This is being checked by Shinji Takasugi and I will report to you all. IF, the acquisition coordinates are correct as stated, then 2. Geotools cannot handle the case where the tellurics and magnetics are in different coordinate systems. So the original EDI files need to be "corrected" to bring the two coordinate systems into alignment. I will do this if necessary. 3. Geotools prior to release 7.20 had a bug when reading in spectra that were not at 0 deg azimuth. This was discovered by Jim Craven, and corrected in version 7.20. However, the J-format response files and Geotools database that I distributed used Geotools version 6.5, so the responses are WRONG. Unfortunately, this may mean that the interpretations in the published papers based on these responses may be in error. Once we have determined the acquisition coordinate systems, and "corrected" the EDI files if required, I will redistribute the responses, EDI files and Geotools database for the Kayabe dataset. Discussion of rotation and coordinate systems used by Geotools can be found on the Geotools-Users web page at: http://www.mailbase.ac.uk/lists/geotools-users/ -------------------------------------------------------------------------------- >>>21.3 New EM books published ============================== >>>21.3.1 Advances in Deep Electromagnetic Exploration ------------------------------------------------------ [submitted by K K Roy] Monograph on Advances in Deep Electromagnetic Exploration Edited by KK Roy, SK Verma and K Mallick. Expected by May 1998 Publishers Narosa Publishing House, New Delhi, India & Springer Verlag, Heidelberg, Germany __________________________________________________________ A limited number of copies will be printed. Interested person should contact Prof. K.K. Roy Department of Geology and Geophysics Indian Institute of Technology, Kharagpur Pin 721302, India Ph: 091 03222 55221 7822 Fax: 091 03222 55221 55303 Email: kkroy@gg.iitkgp.ernet.in >>>21.3.2 The Equatorial Electrojet ----------------------------------- By C.A. Onwumechili. Published by Gordon and Breach. Contents: Major Background Phenomena * Rocket Measurements of Ionospheric Currents * Equatorial Electrojet Current * Magnetic Fields on the Equatorial Electrojet * Ionosphere Plasma Irregularities, Drifts and Electric Fields in Equatorial Electrojet Zone * Quiet Time Counter Equatorial Electrojet * Numerical Modelling of the Equatorial Electrojet * Variabilities of Geomagnetic Regular Variations and their Sources ISBN: 90-5699-069-1 US$155 / £101 / ECU129 -------------------------------------------------------------------------------- >>>21.4 MT grant for research in Developing countries ===================================================== [submitted by Adele Manzella] The Italian Government offers grants to scientists from Developing Countries. A number of grants will be made available in 1998/99 in the field of Advanced Methodologies in Earth and Environmental Sciences. Among the research themes, one is dedicated to magnetotelluric and its application to geothermal exploration. The deadline is April 30, 1998!!!!!!!!!! For any information, please contact directly me or ICTP Programme for Training and Research in Italian Laboratories International Centre for Theoretical Physics P.O. Box 586 34100 Trieste, Italy telefax (+39) 40 2240558 telephone (+39) 40 2240553-556 e-mail: itlabs@ictp.trieste.it web-page: http://www.ictp.trieste.it -------------------------------------------------------------------------------- >>>21.5 Geotools Users mailing list =================================== Users of Geotools, and anyone else who is interested, can sign up to an electronic mailing list to receive and send messages to other users about Geotools. The service is maintained by Sebastian Tauber at Edinburgh and Patrick Denny at Potsdam. You will find the Geotools-Users web page at: http://www.mailbase.ac.uk/lists/geotools-users/ To join the list, send a message to mailbase@mailbase.ac.uk with the message (typing your own name in place of "firstname(s) lastname"): join geotools-users firstname(s) lastname -------------------------------------------------------------------------------- >>>21.6 MTNet mailing list ========================== An automatic mailing list is being prepared for MTNet users. This is to save me the work of continually updating your email addresses (on average over twenty changes per week). To subscribe to the MTNet mailing list, send an email to: majordomo@cg.nrcan.gc.ca with the following in the body subscribe mtnet To unsubsribe, send an email with the message unsubscribe mtnet Note that for this to work you must have a valid "Reply-To" address in your email. Invalid reply addresses will not be added to the list. I will not add all current email addresses to the list, but ask that you do this yourself. This way I will know that the list is current, and that all people on it really want to receive mailings. Once you have subscribed to the list, you can send a message to all users by emailing it to mtnet@cg.nrcan.gc.ca I will allow this feature to be unmoderated (i.e., I will not check whether the message going out is one that many will want to see) until such time as this is abused. So please do not send out messages to this list except when you are sure that many of your colleagues will want to know what you have to say. If you use this to send a general message, make sure that you send the text in plain ASCII. Do NOT send a file directly from programs such as Word or WordPerfect. Many of us either do not have the appropriate word processing software or have problems decoding the attachments. If I receive complaints about abuse, I will moderate this list. -------------------------------------------------------------------------------- >>>21.7 MTNet updates ===================== >>>21.7.1 New release of Egbert's processing codes -------------------------------------------------- [submitted by Gary Egbert] A new version of the OSU robust MT data processing programs is now available via anonymous ftp to ftp.oce.orst.edu in dist/egbert/EMTF . Source code, documenataion and data for compiling and testing the OSU robust single station, remote reference and multiple station processing programs are in the compressed UNIX tarfile EMTF.tar.gz. Features of this new release include: * A version of the multiple station program described in Egbert, G.D., Robust multiple station magnetotelluric data processing, Geophys. J. Int., 130, 475-496, 1997. * Significantly improved documentation * Lots of bug fixes, and cleaner, easier to maintain source code. * More flexible definition of channel groupings to make transfer function estimation simpler for a variety of EM data acquisition scenarios (e.g., EM profiling data with multiple parallel E field components. * A common output format for single station, remote reference, and multiple station TF results, including generic cross-power files which can be converted with standard GEOTOOLS utilities into EDI files. * Matlab programs for post-processing and displaying multiple and station station output files. The code has been tested and runs on standard UNIX platforms, and has also been compiled and run on PCs under Windows95 (Whatcom Fortran compiler), and LINUX. If you get the program and encounter any problems, please inform us. Gary Egbert Markus Eisel (541) - 737 - 2947 (541) - 737 - 2426 egbert@oce.orst.edu eisel@oce.orst.edu College of Oceanic and Atmospheric Sciences Oregon State University Oceanography Admin Bldg 104 Corvallis, OR 97331-5503 FAX: (541) - 737 - 2064 [Note: A link has been set up on MTNet to these codes] -------------------------------------------------------------------------------- Alan G Jones Ottawa, 6 April, 1998 -------------------------------------------------------------------------------- >>>Appendix: Email list ======================= The list updated to 6 April 1998 is available on MTNet at http://www.cg.NRCan.gc.ca/mtnet/email/email.html If you cannot access the WWW and need your own copy, please send me an email. Missing email addresses: Please send me an update for the following people if you know a new address for them or if they should be removed from the list. (The date given is when email was returned with unsuccessful delivery.) Daria Abramova Troitsk ? (3 Dec 97) Jorge Arzate Mexico ? I S Barashkov Moscow ? Tatyana Demidova Shirshov ? (3 Dec 97) Dhruba Jyoti Dutta Kharagpur ? N V Federov ? C. Hatzichristodulu Leicester ? R Hermanto Tasmania ? Robert Kusi Flinders ? Scott Neal Indiana ? Wei Qian Aerodat ? (9 Sept 97) Augustinho Rigoti Flinders ? Valery Soldatenko Ukraine ? (3 Dec 97) Andreas Tzanis Athens ?