※日本語はこちら
※The data released in this page is for researchers.
The time series data of the seafloor positions measured using the GNSS-A technique is available at this page.
For details of the observation method, please see Yokota et al. (2018, Sci. Data).
地点名 | 地点名 | 地点名 | |||
(1) | KAMN | (10) | TOK2 | (19) | MRT1 |
(2) | KAMS | (11) | TOK3 | (20) | MRT2 |
(3) | MYGI | (12) | ZENW | (21) | MRT3 |
(4) | MYGW | (13) | KUM1 | (22) | TOS1 |
(5) | FUKU | (14) | KUM2 | (23) | TOS2 |
(6) | CHOS | (15) | KUM3 | (24) | ASZ1 |
(7) | BOSN | (16) | KUM4 | (25) | ASZ2 |
(8) | SAGA | (17) | SIOW | (26) | HYG1 |
(9) | TOK1 | (18) | SIO2 | (27) | HYG2 |
DATA | UPDATE |
Latest data | Sep. 9, 2022 *ITRF2014 |
(1)-(6) before Tohoku Earthquake | Mar. 31, 2017 *ITRF2005 (F3-solution-based) |
coseismic movements at (1)-(6) | Mar. 31, 2017 *ITRF2005 (F3-solution-based) |
The positions are written in ECEF coordinates (X, Y, Z).
Line 1 | data version (updated date) |
Line 2 | site name; reference coordinate system |
Line 3 | description of each column |
Line 4- | observation start date; absolute positions [XYZ coordinates (m)]; equipment code (A:-2002/07, B:-2008/04, C:2008/04-); vessel code (K:Kaiyo, M:Meiyo, S:Shoyo, T:Takuyo); observation end date |
Line 1 | data version (updated date) |
Line 2 | site name; reference coordinate system |
Line 3 | origin of the plane E-N-U coordinate system (latitude, longitude, ellipsoidal height) |
Line 4 | position of reference epoch with (E, N, U = 0.0, 0.0, 0.0) from origin point described in Line 3 |
Line 5- | observation start date; absolute positions [ENU coordinates (m)]; equipment code; vessel code; observation end date |
Movements in xyz-data & enu-data are calculated based on the above formats.
Lines 1-3 | headers |
Line 4 | sites; observation date before Mar. 11, 2011; vessel code; observation date after Mar. 11, 2011; vessel code; movements [m] |
The datasets provided below are used in our research paper.
For the details of the data, please see Watanabe et al. (2020, Front. Earth Sci.).
data range | data file | citation | paper in which the data is used |
Sites TOS2 and MYGI, from 2011 to 2019 | zip (129 MB) |
doi:10.5281/zenodo.3993912 | doi:10.3389/feart.2020.597532 |
Sites along the Japan Trench, before the 2011 Tohoku Earthquake | zip (102 MB) |
doi:10.5281/zenodo.4528990 | doi:10.1186/s40623-021-01487-0 |
Sites along the Japan Trench, after the 2011 Tohoku Earthquake to 2020 | zip (465 MB) |
doi:10.5281/zenodo.4529008 | doi:10.1186/s40623-021-01487-0 |
The GNSS-A observation data listed above can be analyzed using the software GARPOS.
The released version is available at doi:10.5281/zenodo.4522027.
Please see Watanabe et al. (2020, Front. Earth Sci.) for the details of the methodology.