Ver.2 Summary | Products & Algorithms | Data Products

About Ver.2 Products

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Update Information

2020/07/28: Added notes for Snow and Ice Physical Properties (SIPR) algorithm.
2020/06/25: Ver.2 validation results of each product have been uploaded.
2020/06/11: Added notes for statistics products.
2020/05/28: Ver.2 information open (Only for items added or updates QA flag or Attributes.)

Ver.2 Update

The accuracy is improved. (Detail (In Japanese) (2020/06/18 update))
- In this Ver.2 release, 15 products satisfy standard accuracy. (9 in Ver.1)
  
  * Standard accuracy: https://suzaku.eorc.jaxa.jp/GCOM_C/data/product_goal_std.html
- The Level-2 and Level-3 products accuracy improves because of improving the accuracy of the Level-1 data.
Product Change
- RSRF: Shortwave radiation (SWR) is added.
- LAI: Change from Understory_NDVI to Overstory_LAI
- SST: GHRSST required SD (data set) is added.
Others
- several minor changes
(Note 1)
- Version number of ALL products will be changed from "1xxx" to "2xxx".
- G-Portal (FTP) directory for standard products will be changed from "1" to "2".
  The directory of near-realtime products is not changed (only the file name is changed).
  [Ver.1 example]
  /standard/GCOM-C/GCOM-C.SGLI/L2.ATMOS.CLFG/1/2020/01/05
  GC1SG1_20200105A01D_T0112_L2SG_CLFGK_1001.h5
  
  [Ver.2 example]
  /standard/GCOM-C/GCOM-C.SGLI/L2.ATMOS.CLFG/2/2020/01/05
  GC1SG1_20200105A01D_T0112_L2SG_CLFGK_2000.h5
(Note 2) (2020/06/11 Update)
1. Because of the process system change, statistics products (8D, 1M) with insufficient statistical period will be produced. (TBD)
2. L2 RSRF accuracy will be degraded for maximum 3 months because of the insufficient input data at the version transition.
3. ALL land and atmosphere products will be affected by the RSRF accuracy because they use RSRF as an input.
Sorry for your inconvenience.
(Note 3) (2020/07/28 Update)
1. Snow and Ice Physical Properties (SIPR) algorithm has the following restrictions.
  - In Snow grain size of shallow layer (SGSL) and Snow and ice surface temperature (SIST) products, the incorrect values are stored in QA flag of some tiles, and the incorrect values are stored in the statistical product.
  - Level2 SIPR,
  - Level2 Tile statistics SIPR (SGSL, SIST)
  - Level3 (SGSL, SIST)
  Product version: Ver.2 (2000)
Please refer to here for reprocessing status.

Updates

You can see each algorithm details page from the link in the algorithm column.
For each area(Land, Atmosphere, Ocean, Cryosphere), please refer to the link in the area column.

Area	Product *1	Update contents of Ver. 2	Stored Physical quantity (excluding QA_flag) *2	Ver.2 updated contents *3			Ver.2 validation results (update date)	Sample data*4		Difference image Left:Ver.1, Right:Ver.2
Area	Product *1	Update contents of Ver. 2	Stored Physical quantity (excluding QA_flag) *2	QA flag	Attribute	ATBD	Ver.2 validation results (update date)	Sample data*4		Difference image Left:Ver.1, Right:Ver.2
Radiance	TOA radiance(Tile: LTOAQ, LTOAK)	Bug fix	Lt_VN Lt_SW Lt_P Lt_TI					Ver.1(250m)	Ver.2(250m)	VN11 PI_0 SW03 TI01
	TOA radiance(Global: LTOAF,LCLRF)	Bug fix	Lt_VN Lt_SW Lt_P Lt_TI Statistic_data_VNI Statistic_data_SWI Statistic_data_TIR Land_water_flag Cloud_flag (Only LCLR)					Ver.1 (LTOA,1/24deg Ver.1 (LCLR,1/24deg)	Ver.2 (LTOA,1/24deg) Ver.2 (LCLR,1/24deg)	[LTOAF] VN11 PI_0 SW03 TI01 [LCLRF] VN11 P1_0 SW03 TI01
Land Detail	Land Surface Reflectance [RSRF]	Added SD array(/image_data/SWR) Applied the vicarious calibration results of ver 2.0 Improved of the quality check, cloud identification and BRDF calculation Modified QA flag	Rs_VN Rs_PI Rs_SW Tb_TI Tau_500 Angstrom Land_water_flag PAR SWR (Added in Ver. 2)	○	○	○	RSRF (Jun. 2020)	Ver.1(250m)	Ver.2(250m)	VN11 PI01 SW03 TI01
	Vegetation Index [VGI_ (NDVI/EVI_)]	Modified the parameter of shadow index calculation Modified QA flag	EVI NDVI SDI	○	○	○	NDVI-EVI (Jun. 2020) SDI (Jun. 2020)	Ver.1(250m)	Ver.2(250m)	EVI_ NDVI SDI_
	Shadow Index [VGI_ (SDI_)]		EVI NDVI SDI	○	○	○	NDVI-EVI (Jun. 2020) SDI (Jun. 2020)	Ver.1(250m)	Ver.2(250m)	EVI_ NDVI SDI_
	Above Ground Biomass [AGB_]	Improved the algorithm and the period of input data (RSRF) Modified QA flag"	AGB VRI	○		○	AGB-VRI (Jun. 2020)	Ver.1(1km)	Ver.2(1km)	AGB_ VRI_
	Vegetation roughness index [AGB_(VRI_)]		AGB VRI	○		○	AGB-VRI (Jun. 2020)	Ver.1(1km)	Ver.2(1km)	AGB_ VRI_
	Fraction of absorbed PAR [LAI_ (FPAR)]	Improved the algorithm and LUT Modified the SD array (Image_data/Understory_NDVI --->>> Image_data/Overstory_LAI) Modified QA flag"	FAPAR LAI Overstory_LAI (Added in Ver. 2)	○	○	○	LAI-FAPAR (Jun. 2020)	Ver.1(250m)	Ver.2(250m)	FAPAR LAI_ Overstory_LAI_
	Leaf area index [LAI_]		FAPAR LAI Overstory_LAI (Added in Ver. 2)	○	○	○	LAI-FAPAR (Jun. 2020)	Ver.1(250m)	Ver.2(250m)	FAPAR LAI_ Overstory_LAI_
	Land Surface Tempereture [LST_]	Added input data(CLFG) Modified QA flag"	E01 E02 LST	○		○	LST (Jun. 2020)	Ver.1(250m)	Ver.2(250m)	E01_ E02_ LST_
Atmosphere Detail	Cloud flag/Classification [CLFG]	None	Cloud_flag					Ver.1(1km) Ver.1(250m)	Ver.2(1km) Ver.2(250m)	Cloud_flag
	Classified cloud fraction [CLPR(CFR^)] is the No. of the ISCCP classes	None	CLER_I CLER_W CLOT_I CLOT_W CLTH CLTT CLTYPE					Ver.1(1km)	Ver.2(1km)	CLER_I CLER_W CLOT_I CLOT_W CLTH CLTT CLTYPE
	Cloud top temp/height [CLPR (CLTT/CLTH)]
	Water cloud OT/effective radius [CLPR (COTW/CERW)]
	Ice cloud optical thickness [CLPR (COTI)]
	Aerosol over the ocean [ARNP (AOTO/AAEO)]	Added auxiliary data (Himawari aerosol assimilation model data)	ARAE_ocean AROT_ocean		○	○	ARNP (Jun. 2020)	Ver.1(1km)	Ver.2(1km)	ARAE_ocean AROT_ocean
	Land aerosol by near ultra violet [ARNP (AOTL/AAEL)]		ARAE_land AROT_land ARSSA_land		○	○	ARNP (Jun. 2020)	Ver.1(1km)	Ver.2(1km)	ARAE_land AROT_land ARSSA_land
	Aerosol by Polarization [ARPL (AOTP/AAEP/ASSA)]	Improved the cloud identification using by polarization band Improved the snow/ice identification Modified QA flag	ARAE_pol_land AROT_pol_land ARSSA_pol_land	○	○	○	ARPL (Jun. 2020)	Ver.1(1km)	Ver.2(1km)	ARAE_pol AROT_pol ARSSA_pol
Ocean Detail	Normalized Water Leaving Radiance [NWLR(L^*)] * is wavelength.	Improved LUT of aerosol Improved sunglint correction Improved in-water model Modified QA flag Applied the vicarious calibration results of ver 2.0	Line_tai93 NWLR_380 NWLR_412 NWLR_443 NWLR_490 NWLR_530 NWLR_565 NWLR_670 PAR TAUA_670 TAUA_865	○	○	○	NWLR (Jun. 2020) PAR (Jun. 2020)	Ver.1(1km) Ver.1(250m)	Ver.2(1km) Ver.2(250m)	NWLR_530 PAR
	Atmospheric correction param [NWLR (T*)]* is wavelength.
	Photosynthetically available radiatioin [NWLR (PAR_)]
	Chlorophyll-a concentration [IWPR (CHLA)]	Improved the algorithm of CDOM and TSM Modified QA flag	CDOM CHLA Line_tai93 TSM	○	○	○	CDOM (Jun. 2020) CHLA (Jun. 2020) TSM (Jun. 2020)	Ver.1(1km) Ver.1(250m)	Ver.2(1km) Ver.2(250m)	CDOM CHLA TSM
	Suspended solid concentration [IWPR (TSM_)]
	Colored dissolved organic matter [IWPR (CDOM)]
	Sea Surface Temperature [SSTD/SSTN (SST_)]	Added auxiliary data (Himawari SST data) Added SD array (/Image_data/Cloud_probability) Improved the cloud identification （Improved cloud mask of coast and inland water area） Modified the probability density function of cloud mask Modified QA flag	Line_tai93 SST Cloud_probability (Added in Ver. 2)	○	○	○	SST (Jun. 2020)	Ver.1(1km) Ver.1(250m)	Ver.2(1km) Ver.2(250m)	SST Cloud_probability
Cryosphere Detail	Snow and Ice Cover Extent [SICE]	Improved algorithm of cloud identification	SICE			○	SICE (Jun. 2020)	Ver.1(1km) Ver.1(250m)	Ver.2(1km) Ver.2(250m)	SICE
	Okhotsk Sea Ice Distribution [OKID]	Improved algorithm of cloud identification	Line_tai93 OKID			○	OKID (Jun. 2020)	Ver.1(250m)	Ver.2(250m)	OKID
	Snow and Ice Physical Properties [SIPR (SIST)]	Improved algorithm for solving snow particle size Update table of emissivity	SGSL SIST	○	○	○	SGSL-SIST (Jun. 2020)	Ver.1(1km) Ver.1(250m)	Ver.2(1km) Ver.2(250m)	SGSL SIST
	Snow grain size of shallow layer [SIPR (SGSL)]		SGSL SIST	○	○	○	SGSL-SIST (Jun. 2020)	Ver.1(1km) Ver.1(250m)	Ver.2(1km) Ver.2(250m)	SGSL SIST
Statistics	Level-2 Tile statistics (8day 1month)	Bug fix	xxxx_AVE xxxx_Date xxxx_MAX xxxx_MIN xxxx_Ninput xxxx_Nused xxxx_RMS					Ver.1 (NDVI,250m) Ver.1 (SIST,1km)	Ver.2 (NDVI,250m)
	Level-2 Tile Mosaic (8day 1month)	Bug fix Modified QA flag	Lt_PI Lt_PQ Lt_PU Lt_SW Lt_TI Lt_VN	○	○			Ver.1 (LTOA,250m)	Ver.2 (LTOA,250m)
	Level-2 RSRF Tile Statistics (8day 1month)	Bug fix Changed the data uesed for calculation of BRDF	xxxx_AVE xxxx_Date xxxx_MAX xxxx_MIN xxxx_Ninput xxxx_Nused xxxx_RMS			○		Ver.1 (RV01,250m) Ver.1 (RV02,250m) Ver.1 (RV03,250m) Ver.1 (RV04,250m) Ver.1 (RV05,250m) Ver.1 (RV06,250m) Ver.1 (RV07,250m) Ver.1 (RV08,250m) Ver.1 (RV09,250m) Ver.1 (RV10,250m) Ver.1 (RV11,250m) Ver.1 (RS01,1km) Ver.1 (RS02,1km) Ver.1 (RS03,250m) Ver.1 (RS04,1km) Ver.1 (RT01,250m) Ver.1 (RT02,250m) Ver.1 (RN08,1km) Ver.1 (RN11,1km) Ver.1 (RP01,1km) Ver.1 (RP02,1km) Ver.1 (GEOI,250m) Ver.1 (GEOP,1m) Ver.1 (GEOV,250m)	Ver.2 (RV01,250m) Ver.2 (RV02,250m) Ver.2 (RV03,250m) Ver.2 (RV04,250m) Ver.2 (RV05,250m) Ver.2 (RV06,250m) Ver.2 (RV07,250m) Ver.2 (RV08,250m) Ver.2 (RV09,250m) Ver.2 (RV10,250m) Ver.2 (RV11,250m) Ver.2 (RS01,1km) Ver.2 (RS02,1km) Ver.2 (RS03,250m) Ver.2 (RS04,1km) Ver.2 (RT01,250m) Ver.2 (RT02,250m) Ver.2 (RN08,1km) Ver.2 (RN11,1km) Ver.2 (RP01,1km) Ver.2 (RP02,1km) Ver.2 (GEOI,250m) Ver.2 (GEOP,1km) Ver.2 (GEOV,250m)
	Level-3 Glocal Spatial Binning	Bug fix	xxxx_AVE xxxx_Date xxxx_MAX xxxx_MIN xxxx_Ninput xxxx_Nused xxxx_RMS					Ver.1 (NDVI,1/24deg) Ver.1 (SIST,1/24deg) Ver.1 (SST,1/24deg)	Ver.2 (NDVI,1/24deg) Ver.2 (SIST,1/24deg) Ver.2 (SST,1/24deg)
	Level-3 Glocal Temporal Binning (8day, 1month)	Bug fix	xxxx_AVE xxxx_Date xxxx_MAX xxxx_MIN xxxx_Ninput xxxx_Nused xxxx_RMS					Ver.1 (NDVI,1/24deg) Ver.1 (SST,1/24deg) Ver.1(SIST, 1/24deg,EQR) Ver.1(SIST, 1/24deg,PS-N)	Ver.2 (NDVI,1/24deg) Ver.2 (SST,1/24deg) Ver.2(SIST, 1/24deg,EQR) Ver.2(SIST, 1/24deg,PS-N) Ver.2(SIST, 1/24deg,PS-S)

Refer to Processing Flow & Product List (https://suzaku.eorc.jaxa.jp/GCOM_C/data/product_flow.html)
xxxx is indicated by Product ID.
Updated contents of Ver.2 is indicated by "*".
By clicking the link in the sample data column, you can download sample data that file format is HDF5. Also, you can view the difference image of Ver.1 and Ver.2 from sample the link in the column of difference. These are samples for checking data format. Accuracies of the physical variables are still under evaluation.Please refer to here for the map projection of each product.