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Available SST Data

All data is provided in GDS 2.0 format.

Data List

Satellite/ Sensor	Processing Type	Product	Identifier	Category	Archive Period	Latency	Links
Aqua/ AMSR-E	Standard	L2P	nc.gz	netCDF	from June 2002 to October 2011	(none)	Product Evaluation Result
			nc.gz.md5	md5 for netCDF
		L3C	nc.gz	netCDF
			nc.gz.md5	md5 for netCDF
GCOM-W/ AMSR2	Near RealTime	L2P	nc.gz	netCDF	latest 7 days (10GHz SST is available from V3.0.)	4 hours	Product Evaluation Result GCOM-W Validation Web
			nc.gz.md5	md5 for netCDF
		L3C	nc.gz	netCDF
			nc.gz.md5	md5 for netCDF
	Standard	L2P	nc.gz	netCDF	from 3 July 2012 to present (10GHz SST is available from V3.0.)	1 day
			nc.gz.md5	md5 for netCDF
		L3C	nc.gz	netCDF
			nc.gz.md5	md5 for netCDF
GPM /GMI	Near RealTime	L2P	nc.gz	netCDF	latest 7 days	4 hours	---
			nc.gz.md5	md5 for netCDF
		L3C	nc.gz	netCDF
			nc.gz.md5	md5 for netCDF
	Standard	L2P	nc.gz	netCDF	from 4 March 2014 to present	1 day	---
			nc.gz.md5	md5 for netCDF
		L3C	nc.gz	netCDF
			nc.gz.md5	md5 for netCDF
WindSat	Near RealTime	L2P	nc.gz	netCDF	from 3 August 2011 to 19 October 2020	18 hours	---
			nc.gz.md5	md5 for netCDF
		L3C	nc.gz	netCDF
			nc.gz.md5	md5 for netCDF
SGLI	Near RealTime	L2P	nc.gz	netCDF	1km:from 1 January 2020 to present 250m:latest 7 days	1 day	Product Evaluation Result
			nc.gz.md5	md5 for netCDF
VIRS	Standard	L2P	nc.gz	netCDF	from 1 April 2013 to 21 March 2014	(none)	---
			nc.gz.md5	md5 for netCDF
		L3C	nc.gz	netCDF
			nc.gz.md5	md5 for netCDF

Processing Type

Near RealTime
Produced from Near RealTime sensor data. Ancillary data for GHRSST like analysis SST, wind speed and sea ice are not waiting in progress.
Standard
Produced from Standard sensor data. Ancillary data for GHRSST like analysis SST, wind speed and sea ice are waiting for 3 days from the observation date time.

Version

GCOM-W/AMSR2
~~V2.1 : generated from AMSR2 L2 V2.1 (2 July 2012 - 28 February 2017)~~
*removed from the server on 27 Feb. 2025

V3.0 : generated from AMSR2 L2 V3.0 (2 July 2012 - 12 October 2020)

V4.0 : generated from AMSR2 L2 V4.0 (2 July 2012 - 26 July 2022)

V4.1 : generated from AMSR2 L2 V4.1 (27 July 2022 - 17 April 2024) or V4.11 (2 July 2012 - present)
*L3 products are created using data with pixel data quality = 0 from L2 products.
GPM/GMI
~~V2 : generated from GMI L1B V04A (4 March 2014 - 30 April 2017)~~

~~V3 : generated from GMI L1B V05A (4 March 2014 - 26 December 2019)~~
*removed from the server on 27 Feb. 2025

V4 : generated from GMI L1B V05A (4 March 2014 - 30 April 2022)

V5 : generated from GMI L1B V07A (1 May 2022 - 15 February 2023)

V6 : generated from GMI L1B V07A (4 March 2014 - 8 November 2023)

V6.1 : generated from GMI L1B V07B (8 November 2023 - present)
WindSat
V7a (1 April 2009 - 21 August 2016)

V8 (3 August 2011 - 19 October 2020)
SGLI
V1002 (1 January 2020 - 28 Jun 2020)

V2000 (29 Jun 2020 - 29 Nov 2021)

V3000 (29 Nov 2021 - present)
Aqua/AMSR-E
V7a (June 2002 - October 2011)

V8 (June 2002 - October 2011)
VIRS
V1a (1 April 2013 - 21 March 2014)

File name sample

netCDF
- AMSR2
  STD 06G
  
  20130228000733-JAXA-L2P_GHRSST-SSTsubskin-AMSR2-v4.0_A-v02.0-fv01.0.nc.gz
  
  (YYYYMMDDhhmmss)-JAXA-L2P_GHRSST-SSTsubskin-AMSR2-v(product Ver.)_(orbit order)-v(GDS Ver.)-fv(file Ver.).nc.gz
  
  NRT 06G
  
  20130228000733-JAXA-L2P_GHRSST-SSTsubskin-AMSR2_NRT-v4.0_A-v02.0-fv01.0.nc.gz
  
  (YYYYMMDDhhmmss)-JAXA-L2P_GHRSST-SSTsubskin-AMSR2_NRT-v(product Ver.)_(orbit order)-v(GDS Ver.)-fv(file Ver.).nc.gz
  
  STD 10G
  
  20130228000733-JAXA-L2P-10G_GHRSST-SSTsubskin-AMSR2-v4.0_A-v02.0-fv01.0.nc.gz
  
  (YYYYMMDDhhmmss)-JAXA-L2P-10G_GHRSST-SSTsubskin-AMSR2-v(product Ver.)_(orbit order)-v(GDS Ver.)-fv(file Ver.).nc.gz
  
  NRT 10G
  
  20130228000733-JAXA-L2P-10G_GHRSST-SSTsubskin-AMSR2_NRT-v4.0_A-v02.0-fv01.0.nc.gz
  
  (YYYYMMDDhhmmss)-JAXA-L2P-10G_GHRSST-SSTsubskin-AMSR2_NRT-v(product Ver.)_(orbit order)-v(GDS Ver.)-fv(file Ver.).nc.gz
  
  STD Multi-band
  
  20130228000733-JAXA-L2P-mband_GHRSST-SSTsubskin-AMSR2-v4.0_A-v02.0-fv01.0.nc.gz
  
  (YYYYMMDDhhmmss)-JAXA-L2P-mband_GHRSST-SSTsubskin-AMSR2-v(product Ver.)_(orbit order)-v(GDS Ver.)-fv(file Ver.).nc.gz
  
  NRT Multi-band
  
  20130228000733-JAXA-L2P-mband_GHRSST-SSTsubskin-AMSR2_NRT-v4.0_A-v02.0-fv01.0.nc.gz
  
  (YYYYMMDDhhmmss)-JAXA-L2P-mband_GHRSST-SSTsubskin-AMSR2_NRT-v(product Ver.)_(orbit order)-v(GDS Ver.)-fv(file Ver.).nc.gz
  
  orbit order: A(Ascending), D(Descending), B(Both; AMSR2 NRT L2P)
- GMI
  STD
  
  20220601010722-JAXA-L2P_GHRSST-SSTsubskin-GMI-v5_B-v02.0-fv01.0.nc.gz
  
  (YYYYMMDDhhmmss)-JAXA-L2P_GHRSST-SSTsubskin-GMI-v(product Ver.)_(orbit order)-v(GDS Ver.)-fv(file Ver.).nc.gz
  
  NRT
  
  20220601000224-JAXA-L2P_GHRSST-SSTsubskin-GMI_NRT-v5_B-v02.0-fv01.0.nc.gz
  
  (YYYYMMDDhhmmss)-JAXA-L2P_GHRSST-SSTsubskin-GMI_NRT-v(product Ver.)_(orbit order)-v(GDS Ver.)-fv(file Ver.).nc.gz
  
  orbit order: B(Both; GMI STD L2P: Concatenated Ascending and Descending, GMI NRT L2P: hashed pass)
md5 for netCDF
20130228000733-JAXA-L2P_GHRSST-SSTsubskin-AMSR2-v4.0_A-v02.0-fv01.0.nc.gz.md5

Variables of netCDF data

time	reference time (seconds since 1981-01-01 00:00:00)
lat	latitude
lon	longitude
sea_surface_temperature	sea surface subskin temperature
sst_dtime	time difference from reference time
sses_bias	bias estimate(climate)
sses_standard_deviation	standard deviation(climate)
dt_analysis	Deviation from last SST analysis(oisst)
wind_speed	sea surface wind speed
wind_speed_dtime_from_sst	time difference of wind speed measurement from sst measurement
sources_of_wind_speed	sources of wind speed
sea_ice_fraction	sea ice fraction
sea_ice_fraction_dtime_sst	time difference of sea ice fraction measurement from sst measurement
sources_of_sea_ice_fraction	sources of sea ice fraction
l2p_flags	L2P flags
quality_level	quality level of SST pixel
proximity_confidence	proximity confidence value