Tohoku-Oki / Sendai Earthquake Data Now Available
Following the magnitude 9.0 event on Dec. 26, 2011, many of the SG groups in GGP are making available files for the months of March and April 2011 on this website.
The data are in two formats, 1 minute data and second data, each in separate directories. All files have headers that contain the metadata (including station latitude, longitude, and instrument calibration factors for gravity and pressure).
|
|
station id |
year |
month |
code |
extension |
filename |
|
generic |
st |
yy |
mm |
cc* |
.GGP |
styymmcc.ggp |
|
example |
ST |
04 |
12 |
00 |
.GGP |
ST041200.GGP |
*cc is the data repair code - generally this is 00 for 1 minute data
|
|
station id |
year |
month |
code |
extension |
filename |
|
generic |
st |
yy |
mm |
dd* |
.GGS |
styymmdd.ggs |
|
example |
ST |
04 |
12 |
00 |
.GGS |
ST041200.GGS |
*dd contains either a single day of the month (e.g. 05), or is set to 00 if the whole month is in the file
Note there is no repair code for second data (it is implicitly always 00). All second data files are zipped.
Log Files
Some stations report log files (*.log) indicating events at the station that may show up in the data. These are put in the 1 minute directory.
22 Instruments Reporting - July 26, 2012
Months available are listed either as minute files (.ggp) or as second files (.zip)
| # | date |
station, instrument |
files |
minute |
second |
notes |
source |
| 1 | 2011/3/30 |
Onsala, Sweden SG054 |
OS110300 OS110400 |
|
Mar |
minor editing, data good |
H.-G. Scherneck (hgs@chalmers.se) |
| 2 | 2011/4/1 |
Cantley, Canada, T012 |
CA110300 CA110400 |
Mar Apr |
Mar Apr |
data good, pressure spikes |
J. Liard (Jacques.Liard@nrcan-rncan.gc.ca) |
| 3 | 2011/4/4 |
Strasbourg, France, C026 |
ST110300 ST110400 |
Mar Apr |
Mar Apr |
data good |
J. Hinderer (jhinderer@eost.u-strasbg.fr) |
| 4 | 2011/4/5 | Medicina, Italy, C023 |
MC110300 MC110400 |
Mar Apr |
Mar Apr |
data good, DC offset | P. Wolf (peter.wolf@bkg.bund.de) |
| 5 | 2011/4/5 | Bad Homburg, Germany SG044 |
H3110300 H3110400 |
Mar Apr |
Mar Apr |
data good | P. Wolf (peter.wolf@bkg.bund.de) |
| 6 | 2011/4/5 | Tigo Concepcion, Chile RT038 |
TC110300 TC110400 |
Mar Apr |
Mar Apr |
data good, small dc offset | P. Wolf (peter.wolf@bkg.bund.de) |
| 7 | 2011/4/5 | Bad Homburg, CD029_L*^ |
H4110300 H4110400 |
Mar Apr |
Mar Apr |
data good | P. Wolf (peter.wolf@bkg.bund.de) |
| 8 | 2011/4/5 | Bad Homburg, CD029_U*^ | H5110300 | Mar | Mar | data good | P. Wolf (peter.wolf@bkg.bund.de) |
| 9 | 2011/4/5 | Wettzell, Germany, CD030_L*^ |
W3110300 W3110400 |
Mar Apr |
Mar Apr |
data good | P. Wolf (peter.wolf@bkg.bund.de) |
| 10 | 2011/4/5 | Wettzell, Germany, CD030_U*^ |
W4110300 W4110400 |
Mar Apr |
Mar Apr |
data good | P. Wolf (peter.wolf@bkg.bund.de) |
| 11 | 2011/4/12 | Pecny, Czech Republic, SG050 |
PE110300 PE1110400 |
Mar Apr |
Mar Apr |
data good | V. Palinkas (vojtech.palinkas@pecny.cz) |
| 12 | 2011/4/13 | Cibinong, Indonesia, C022 |
CI110300 CI110400 |
Mar Apr |
few spikes, gaps | Y. Fukuda (fukuda@kugi.kyoto-u.ac.jp) | |
| 13 | 2011/4/14 | Canberra, Australia, C031 |
CB110300 CB110400 |
Mar Apr |
data good | Y. Tamura (tamura@miz.nao.ac.jp) | |
| 14 | 2011/4/14 | Ny Alesund, Norway, C039 |
NY110300 NY110400 |
Mar Apr |
data gaps | Y. Tamura (tamura@miz.nao.ac.jp) | |
| 15 | 2011/4/14 | Kamioka, Japan, T016 |
KA110300 KA110400 |
Mar Apr |
data OK, many aftershocks | Y. Tamura (tamura@miz.nao.ac.jp) | |
| 16 | 2011/4/15 | Metsahovi, Finland, T016 |
ME110300 ME110400 |
Mar Apr |
Mar Apr |
data good | H. Virtanen (heikki.virtanen@fgi.fi |
| 17 | 2011/4/18 | Black Forest Obs Germany, SG056_L* | B1110300 B1110400 | Mar Apr | data good | R. Widmer (widmer@geophys.uni-stuttgart.de) | |
| 18 | 2011/4/18 | Black Forest Obs Germany, SG056_U* | B2110300 B2110400 | Mar Apr | data good | R. Widmer (widmer@geophys.uni-stuttgart.de) | |
| 19 |
2011/4/21 2012/5/16 |
Wuhan, China, T004 |
WU110300 WU110400 |
Mar Apr |
Mar Apr |
1s gravity data only** | H.-P. SUN (heping@asch.whigg.ac.cn) |
|
2011/4/21 2012/5/16 |
Wuhan, China, T004 |
WU110300.10s WU110400.10s |
Mar Apr |
data good** | H._P. SUN (heping@asch.whigg.ac.cn) | ||
| 20 | 2011/5/11 |
Conrad, Austria, C025 |
CO110300 |
Mar Apr |
Mar Apr |
data good |
B. Meurers (bruno.meurers@univie.ac.at) |
| 21 | 2011/5/11 |
Djougou, Benin, West Africa, SG060 |
DJ110300 DJ110400 |
Mar Apr |
Mar Apr |
data good, small dc offset |
J. Hinderer (jhinderer@eost.u-strasbg.fr) |
| 22 | 2011/6/4 |
Apache Point, New Mexico SG046 |
AP110300 AP110400 |
Mar Apr |
Mar Apr |
data good | Tom Murphy (tmurphy@physics.ucsd.edu ) |
*instruments such as CD029 in Bad Homburg have dual sensors, separated vertically by several cm. Each sensor generates an independent data series identified by a letter and a number, e.g. H4 for the lower sensor and H5 for the upper. For most stations, only 1 sensor series is available
^In addition Peter Wolf notes: W3,W4,H4,H5 are new data series. They are not in the GGP database. Our gravimeter CD029 and CD030 were rebuilt at GWR with a new small dewar, and new cooling system. After that, they have interchanged the locations. CD029 is now at Bad Homburg (H4, H5) and CD030 is now at Wettzell (W3, W4)
**Wuhan station has no 1s station air pressure data for SG T004 - the pressure sampling rate is 10s. Thus they have we uploaded also 10s data with air pressure.