News
<Oct. 21, 2025>
(Updated) Network Maintenance Notification (Oct. 21,22,28 2025)
Due to network system maintenance, web page and FTP updates will be suspended in the following period:
Oct. 21st, 10:30-11:30 JST (01:30-2:30 UTC).
Oct. 22nd, 10:30-14:30 JST (01:30-5:30 UTC).(*Momentary interruption)
Oct. 28th, 13:30-14:30 JST (04:30-5:30 UTC).
In addition, the website can not browsed during this period.
We ask all users to be careful.
About GHRSST
JAXA provides near-real-time data Sea Surface Temperature (SST) retrievals from several passive microwave imagers as a contribution to the Group for High Resolution SST (GHRSST).
Those SST products are produced at Earth Observation Research Center (EORC) of Japan Aerospace Exploration Agency (JAXA).
All SST products are in GDS format defined by GHRSST, and available as L2P (swath grid) and L3C (daily grid) products.
To see near-real-time browse image, please go to "NRT Monitor".
To download SST, please make user registration to get near-real-time binary data from below.
Available Microwave SST products
| • GMI SST | (GPM) | from 4 March 2014 to present |
| • AMSR2 SST | (GCOM-W) | from 3 July 2012 to present |
| • WindSat SST | (Coriolis) | from 3 August 2011 to 19 October 2020 |
| • AMSR-E SST | (Aqua) | from 1 June 2002 to 4 October 2011 |
Available IR SST products
| • SGLI SST | (GCOM-C) | from 1 January 2020 to present |
| • AHI SST | (H8) | from 7 July 2015 to present |
| • VIRS SST | (TRMM) | from 1 April 2013 to 21 March 2014 |
