This page was created by the IDL library routine `mk_html_help2`.

Last modified: Tue Nov 4 18:16:51 2025.

# Directory Listing of Routines

# projects/erg/ground/geomag

- ERG_LOAD_GMAG_ISEE_FLUXGATE
  To load the STEL fluxgate geomagnetic data from the ISEE ERG-SC site
- ERG_LOAD_GMAG_ISEE_INDUCTION
  To load ISEE induction magnetometer data from the ERG-SC site
- ERG_LOAD_GMAG_MAGDAS_1SEC
  To load the MAGDAS geomagnetic data from the STEL ERG-SC site
- ERG_LOAD_GMAG_MM210
  To load the 210 MM geomagnetic data from the STEL ERG-SC site
- ERG_LOAD_GMAG_NIPR
  Loads the fluxgate magnetometer data obtained by NIPR.
- ERG_LOAD_GMAG_STEL_FLUXGATE
  To load the STEL fluxgate geomagnetic data from the STEL ERG-SC site
- ERG_LOAD_GMAG_STEL_INDUCTION
  To load STEL induction magnetometer data from the STEL ERG-SC site
- ISEE_INDUCTION_CAL_RESP
  To make calibrated frequency-time spectrogram of ISEE induction magnetometers

# Routine Descriptions

## ERG_LOAD_GMAG_ISEE_FLUXGATE

[Next Routine] [List of Routines]

     PROCEDURE: erg_load_gmag_isee_fluxgate

     PURPOSE:
       To load the STEL fluxgate geomagnetic data from the ISEE ERG-SC site

     KEYWORDS:
       site  = Observatory name, example, erg_load_gmag_isee_fluxgate, site='msr',
               the default is 'all', i.e., load all available stations.
               This can be an array of strings, e.g., ['msr', 'kag']
               or a single string delimited by spaces, e.g., 'msr kag'.
               Sites for 1 sec data:
                  msr rik kag ktb
               Sites for 1 min/h data:
                  msr rik kag ktb mdm tew
       datatype = Time resolution. '64hz' for 64 Hz', '1sec' for 1 sec', '1min' for 1 min, and '1h' for 1 h.
                  The default is 'all'.  If you need two of them, set to 'all'.
       /downloadonly, if set, then only download the data, do not load it into variables.
       /no_server, use only files which are online locally.
       /no_download, use only files which are online locally. (Identical to no_server keyword.)
       trange = (Optional) Time range of interest  (2 element array).
       /timeclip, if set, then data are clipped to the time range set by timespan

     EXAMPLE:
       erg_load_gmag_isee_fluxgate, site='msr kag', datatype='1min', $
           trange=['2003-11-20/00:00:00','2003-11-21/00:00:00']

     NOTE: See the rules of the road.
           For more information, see http://stdb2.isee.nagoya-u.ac.jp/magne/
           and http://www1.osakac.ac.jp/crux/ (for mdm and tew).

     HISTORY:
           2013-07-19: Originally written by Y. Miyashita
                       ERG-Science Center, ISEE, Nagoya Univ.
                       erg-sc-core at isee.nagoya-u.ac.jp

           2017-07-07: Satoshi Kurita, ISEE, Nagoya U.
                       1. Use spd_download instead of file_retrieve
                       2. renamed STEL to ISEE

           2020-08-13: Atsuki Shinbori, ISEE, Nagoya U.
                       1. Add the lcl station to the list of a site_code_all variable.
                       2. Add '64hz' to the datatype for donwloading the lcl 64hz CDF data.

           2021-10-12: Atsuki Shinbori, ISEE, Nagoya U.
                       1. Modify rename of tplot variables.

       $LastChangedDate: 2023-01-11 10:09:14 -0800 (Wed, 11 Jan 2023) $
       $LastChangedRevision: 31399 $

(See projects/erg/ground/geomag/erg_load_gmag_isee_fluxgate.pro)

## ERG_LOAD_GMAG_ISEE_INDUCTION

[Previous Routine] [Next Routine] [List of Routines]

     PROCEDURE: erg_load_gmag_isee_induction

     PURPOSE:
       To load ISEE induction magnetometer data from the ERG-SC site

     KEYWORDS:
       site  = Observatory name, example, erg_load_gmag_stel_induction, site='msr',
               the default is 'all', i.e., load all available stations.
               This can be an array of strings, e.g., ['msr', 'sta']
               or a single string delimited by spaces, e.g., 'msr sta'.
               Sites: ath mgd ptk msr sta gak kap zgn
       /downloadonly, if set, then only download the data, do not load it into variables.
       /no_server, use only files which are online locally.
       /no_download, use only files which are online locally. (Identical to no_server keyword.)
       trange = (Optional) Time range of interest  (2 element array).
       /timeclip, if set, then data are clipped to the time range set by timespan
       frequency_dependent = get frequecy-dependent sensitivity and phase difference
                (frequency [Hz], sensitivity (H,D,Z) [V/nT], and phase_difference (H,D,Z) [deg])
       /time_pulse, get time pulse

     EXAMPLE:
       erg_load_gmag_isee_induction, site='msr sta', $
             trange=['2008-02-28/00:00:00','2008-02-28/02:00:00']

     NOTE: See the rules of the road.
           For more information, see http://stdb2.isee.nagoya-u.ac.jp/magne/

     HISTORY:
           2011-01-23: Originally written by Y. Miyashita
                       ERG-Science Center, ISEE, Nagoya Univ.
                       erg-sc-core at isee.nagoya-u.ac.jp

           2017-07-07: Satoshi Kurita, ISEE, Nagoya U.
                       1. New stations (GAK, KAP, ZGN) are included
                       2. Use spd_download instead of file_retrieve

           2021-08-31: Atsuki Shinbori, ISEE, Nagoya U.
                       1. New station (IST) is added.

     $LastChangedDate: 2023-01-11 10:09:14 -0800 (Wed, 11 Jan 2023) $
     $LastChangedRevision: 31399 $

(See projects/erg/ground/geomag/erg_load_gmag_isee_induction.pro)

## ERG_LOAD_GMAG_MAGDAS_1SEC

[Previous Routine] [Next Routine] [List of Routines]

     PROCEDURE: erg_load_gmag_magdas_1sec

     PURPOSE:
       To load the MAGDAS geomagnetic data from the STEL ERG-SC site

     KEYWORDS:
       site  = Observatory name, example, erg_load_magdas_1sec, site='asb',
               the default is 'all', i.e., load all available stations.
               This can be an array of strings, e.g., ['asb', 'onw']
               or a single string delimited by spaces, e.g., 'asb onw'.
               Sites for 1 sec data:
                  asb ...
               Sites for 1 min/h data:
                  ...
       datatype = Time resolution. '1sec' for 1 sec', '1min' for 1 min, and '1h' for 1 h.
                  The default is 'all'.  If you need two of them, set to 'all'.
       /downloadonly, if set, then only download the data, do not load it into variables.
       /no_server, use only files which are online locally.
       /no_download, use only files which are online locally. (Identical to no_server keyword.)
       /verbose
       trange = (Optional) Time range of interest  (2 element array).

     EXAMPLE:
       erg_load_gmag_magdas_1sec, site='asb onw', datatype='1sec', $
                            trange=['2010-11-20/00:00:00','2010-11-21/00:00:00']

     NOTE: See the rules of the road.
           For more information, see http://magdas.serc.kyushu-u.ac.jp/

     Written by: T. Segawa, June 30, 2011
     The prototype of this procedure was written by Y. Miyashita, Apr 22, 2010
                 ERG-Science Center, STEL, Nagoya Univ.
                 erg-sc-core at st4a.stelab.nagoya-u.ac.jp

       $LastChangedDate: 2019-03-17 21:51:57 -0700 (Sun, 17 Mar 2019) $
       $LastChangedRevision: 26838 $

(See projects/erg/ground/geomag/erg_load_gmag_magdas_1sec.pro)

## ERG_LOAD_GMAG_MM210

[Previous Routine] [Next Routine] [List of Routines]

     PROCEDURE: erg_load_gmag_mm210

     PURPOSE:
       To load the 210 MM geomagnetic data from the STEL ERG-SC site

     KEYWORDS:
       site  = Observatory name, example, erg_load_gmag_mm210, site='rik',
               the default is 'all', i.e., load all available stations.
               This can be an array of strings, e.g., ['rik', 'onw']
               or a single string delimited by spaces, e.g., 'rik onw'.
               Sites for 1 sec data:
                  msr rik kag ktb can
               Sites for 1 min/h data:
                  tik zgn yak irt ppi bji lnp mut ptn wtk
                  lmt kat ktn chd zyk mgd ptk msr rik onw
                  kag ymk cbi gua yap kor ktb bik wew daw
                  wep bsv dal can adl kot cst ewa asa mcq
       datatype = Time resolution. '1sec' for 1 sec, '1min' for 1 min, and '1h' for 1 h.
                  The default is 'all'.  If you need all of them, set to 'all'.
       /downloadonly, if set, then only download the data, do not load it into variables.
       /no_server, use only files which are online locally.
       /no_download, use only files which are online locally. (Identical to no_server keyword.)
       trange = (Optional) Time range of interest  (2 element array).
       /timeclip, if set, then data are clipped to the time range set by timespan

     EXAMPLE:
       erg_load_gmag_mm210, site='rik onw', datatype='1min', $
                            trange=['2003-11-20/00:00:00','2003-11-21/00:00:00']

     NOTE: See the rules of the road.
           For more information, see http://stdb2.isee.nagoya-u.ac.jp/mm210/

     Written by: Y. Miyashita, Apr 22, 2010
                 ERG-Science Center, ISEE, Nagoya Univ.
                 erg-sc-core at isee.nagoya-u.ac.jp

       $LastChangedDate: 2019-03-17 21:51:57 -0700 (Sun, 17 Mar 2019) $
       $LastChangedRevision: 26838 $

(See projects/erg/ground/geomag/erg_load_gmag_mm210.pro)

## ERG_LOAD_GMAG_NIPR

[Previous Routine] [Next Routine] [List of Routines]

     PROCEDURE: ERG_LOAD_GMAG_NIPR
       erg_load_gmag_nipr, site = site, $
                         datatype=datatype, $
                         trange=trange, $
                         verbose=verbose, $
                         downloadonly=downloadonly
                         no_download=no_download

     PURPOSE:
       Loads the fluxgate magnetometer data obtained by NIPR.

     NOTE: This procedure is a simple alias to "iug_load_gmag_nipr"
       and calls the original one by just providing the same
       arguments/keywords given.
       Some load procedures for the ground-based observational data in
       the IUGONET projetct, named "iug_load_???", can be also called
       by "erg_load_???", because these data are related to the both
       ERG and IUGONET projects.
       For more information, see http://www.iugonet.org/en/
                             and http://gemsissc.stelab.nagoya-u.ac.jp/erg/

     KEYWORDS:
       site  = Observatory name, example, erg_load_gmag_nipr, site='syo',
               the default is 'all', i.e., load all available stations.
               This can be an array of strings, e.g., ['syo', 'hus']
               or a single string delimited by spaces, e.g., 'syo hus'.
               Available sites: syo hus tjo aed isa
       datatype = Time resolution. Please notice that '1sec' means nearly
               1-sec time resolution. Even if datatype was set to '1sec',
               the time resolution corresponds to
               2sec : syo(1981-1997), hus & tjo(1984-2001/08), isa(1984-1989),
                      aed(1989-1999/10)
               1sec : syo(1997-present)
               0.5sec  : hus & tjo(2001/09-present), aed(2001/09-2008/08)
               Available datatype: 1sec(default) or 20hz
       trange = (Optional) Time range of interest  (2 element array).
       /verbose : set to output some useful info
       /downloadonly: if set, then only download the data, do not load it
               into variables.
       /no_download: use only files which are online locally.

     EXAMPLE:
       erg_load_gmag_nipr, site='syo', $
                     trange=['2003-11-20/00:00:00','2003-11-21/00:00:00']

     Written by Y.-M. Tanaka, December 24, 2010 (ytanaka at nipr.ac.jp)
     Changed from original load procedure to the alias, by Y.-M Tanaka,
            July 24, 2012.

(See projects/erg/ground/geomag/erg_load_gmag_nipr.pro)

## ERG_LOAD_GMAG_STEL_FLUXGATE

[Previous Routine] [Next Routine] [List of Routines]

     PROCEDURE: erg_load_gmag_stel_fluxgate

     PURPOSE:
       To load the STEL fluxgate geomagnetic data from the STEL ERG-SC site

     KEYWORDS:
       site  = Observatory name, example, erg_load_gmag_stel_fluxgate, site='msr',
               the default is 'all', i.e., load all available stations.
               This can be an array of strings, e.g., ['msr', 'kag']
               or a single string delimited by spaces, e.g., 'msr kag'.
               Sites for 1 sec data:
                  msr rik kag ktb
               Sites for 1 min/h data:
                  msr rik kag ktb mdm tew
       datatype = Time resolution. '1sec' for 1 sec', '1min' for 1 min, and '1h' for 1 h.
                  The default is 'all'.  If you need two of them, set to 'all'.
       /downloadonly, if set, then only download the data, do not load it into variables.
       /no_server, use only files which are online locally.
       /no_download, use only files which are online locally. (Identical to no_server keyword.)
       trange = (Optional) Time range of interest  (2 element array).
       /timeclip, if set, then data are clipped to the time range set by timespan

     EXAMPLE:
       erg_load_gmag_stel_fluxgate, site='msr kag', datatype='1min', $
           trange=['2003-11-20/00:00:00','2003-11-21/00:00:00']

     NOTE: See the rules of the road.
           For more information, see http://stdb2.isee.nagoya-u.ac.jp/magne/
           and http://www1.osakac.ac.jp/crux/ (for mdm and tew).

     Written by: Y. Miyashita, Jun 19, 2013
                 ERG-Science Center, ISEE, Nagoya Univ.
                 erg-sc-core at isee.nagoya-u.ac.jp

     Changed from original load procedure to the alias, by S. Kurita,
            Nov. 20, 2017.

       $LastChangedDate: 2019-03-17 21:51:57 -0700 (Sun, 17 Mar 2019) $
       $LastChangedRevision: 26838 $

(See projects/erg/ground/geomag/erg_load_gmag_stel_fluxgate.pro)

## ERG_LOAD_GMAG_STEL_INDUCTION

[Previous Routine] [Next Routine] [List of Routines]

     PROCEDURE: erg_load_gmag_stel_induction

     PURPOSE:
       To load STEL induction magnetometer data from the STEL ERG-SC site

     KEYWORDS:
       site  = Observatory name, example, erg_load_gmag_stel_induction, site='msr',
               the default is 'all', i.e., load all available stations.
               This can be an array of strings, e.g., ['msr', 'sta']
               or a single string delimited by spaces, e.g., 'msr sta'.
               Sites: ath mgd ptk msr sta
       /downloadonly, if set, then only download the data, do not load it into variables.
       /no_server, use only files which are online locally.
       /no_download, use only files which are online locally. (Identical to no_server keyword.)
       trange = (Optional) Time range of interest  (2 element array).
       /timeclip, if set, then data are clipped to the time range set by timespan
       frequency_dependent = get frequecy-dependent sensitivity and phase difference
                (frequency [Hz], sensitivity (H,D,Z) [V/nT], and phase_difference (H,D,Z) [deg])
       /time_pulse, get time pulse

     EXAMPLE:
       erg_load_gmag_stel_induction, site='msr sta', $
             trange=['2008-02-28/00:00:00','2008-02-28/02:00:00']

     NOTE: See the rules of the road.
           For more information, see http://stdb2.isee.nagoya-u.ac.jp/magne/

     Written by: Y. Miyashita, Jan 23, 2011
                 ERG-Science Center, ISEE, Nagoya Univ.
                 erg-sc-core at isee.nagoya-u.ac.jp

     Changed from original load procedure to the alias, by S. Kurita,
            Nov. 20, 2017.

       $LastChangedDate: 2019-03-17 21:51:57 -0700 (Sun, 17 Mar 2019) $
       $LastChangedRevision: 26838 $

(See projects/erg/ground/geomag/erg_load_gmag_stel_induction.pro)

## ISEE_INDUCTION_CAL_RESP

[Previous Routine] [List of Routines]

    PRO isee_induction_cal_resp

    PURPOSE:
     To make calibrated frequency-time spectrogram of ISEE induction magnetometers

     Calibration for power spectral density at a given frequency is peformed as follows:

        S_calib(f) = S_org(f) / cal_table(f) / cal_table(f)

     where S_calib [nT^2/Hz] is calibrated power spectral density, S_org [V^2/Hz] is power spectral density
     computed from the data in CDF files, cal_table [V/nT] is the sensitivity included in CDF files.

    INPUT:
     site  = Observatory name, example, erg_load_gmag_stel_induction, site='msr',
               the default is 'all', i.e., load all available stations.
               This can be an array of strings, e.g., ['msr', 'sta']
               or a single string delimited by spaces, e.g., 'msr sta'.
               Sites: ath mgd ptk msr sta gak kap zgn hus(after 2018-09-06)

     nbox = number of FFT points
     nshift = number of shift points for FFT, nshift should be equal or lower than nbox

    EXAMPLE:
      ;load 1 day data from Gakona and perform calibration
      timespan,'2017-03-21',1,/day
      erg_isee_induction_cal_resp,site='gak',nbox=8192,nshift=1024
      ;plot uncalibrated and calibrated frequency-time spectrogram
      tplot,['isee_induction_db_dt_gak_x_dpwrspc','isee_induction_db_dt_gak_x_dpwrspc_corr']

    HISTORY:
       2018-03-22: Initial release by Satoshi Kurita (ISEE, Nagoya U., kurita@isee.nagoya-u.ac.jp)

     $LastChangedDate: 2019-10-23 14:19:14 -0700 (Wed, 23 Oct 2019) $
     $LastChangedRevision: 27922 $

(See projects/erg/ground/geomag/isee_induction_cal_resp.pro)