This is an ongoing dataset with a latency of 3-4 days.
GCOM-C conducts long-term and continuous global observation and data collection to elucidate the
mechanism behind fluctuations in radiation budget and carbon cycle needed to make accurate
projections regarding future temperature rise. At the same time, cooperating with research
institutions having a climate numerical model, it contributes to reduction of errors in
temperature rise prediction derived from the climate numerical model and improvement of accuracy
of prediction of various environmental changes. SGLI mounted on GCOM-C is the succession sensor
of the Global Imager (GLI) mounted on ADEOS-II (MIDORI II) and is the Imaging Radiometer which
measures the radiation from near-ultraviolet to thermal infrared region (380 nm-12 um) in 19
channels. Global observation of once for approximately every two days is possible at
mid-latitude near Japan by observation width at ground greater than 1,000 km. In addition, SGLI
realizes high resolution than the similar global sensor and has a polarized observation function
and a multi-angle observation function.
Bands
Pixel Size 4638.3 meters
Bands
Name
Units
Min
Max
Pixel Size
Description
SST_AVE
°C
0*
65531*
meters
Temperature of sea surface.
SST_QA_flag
meters
SST QA
Bitmask for SST_QA_flag
Bits 0-1: Terrain type
0: water(land fraction = 0%)
1: mostly water(0% < land fraction < 50%)
2: mostly coastal(50% < land fraction < 100%)
3: land(land fraction = 100%)
Bits 2-3: Terrain type
0: day (night fraction = 0%)
1: mostly day (0% < night fraction < 50%)
2: mostly night (50% < night fraction < 100%)
3: night (night fraction = 100%)
* estimated min or max value
Image Properties
Image Properties
Name
Type
Description
ALGORITHM_VERSION
STRING
Algorithm version
GRID_INTERVAL
STRING
Spatial resolution
GRID_INTERVAL_UNIT
STRING
Unit of GRID_INTERVAL
IMAGE_END_TIME
STRING
Image acquisition end time
IMAGE_START_TIME
STRING
Image acquisition start time
PROCESSING_RESULT
STRING
Good, Fair, Poor, NG
PROCESSING_UT
STRING
Processing time
PRODUCT_FILENAME
STRING
Source filename
PRODUCT_VERSION
STRING
Product version
SATELLITE_DIRECTION
STRING
Satellite orbit direction
A: Nighttime data
D: Daytime data
SST_AVE_OFFSET
STRING
Offset
SST_AVE_SLOPE
STRING
Slope
Terms of Use
Terms of Use
This dataset is free to use without any restrictions (including commercial use). Anyone wishing
to publish analyzed results or value added data products should properly credit the original
G-Portal data, e.g., "PR data by Japan Aerospace Exploration Agency". For value added data
products, please indicate the credit of the original G-Portal data, e.g., "Original data for
this value added data product was provided by Japan Aerospace Exploration Agency."
This product is the temperature of sea surface. This is an ongoing dataset with a latency of 3-4 days. GCOM-C conducts long-term and continuous global observation and data collection to elucidate the mechanism behind fluctuations in radiation budget and carbon cycle needed to make accurate projections regarding future temperature rise. …
[null,null,[],[[["\u003cp\u003eThe JAXA/GCOM-C/L3/OCEAN/SST/V3 dataset provides sea surface temperature (SST) data collected by the Global Change Observation Mission (GCOM-C) satellite.\u003c/p\u003e\n"],["\u003cp\u003eThis dataset has global coverage with a spatial resolution of 4638.3 meters and a temporal latency of 3-4 days.\u003c/p\u003e\n"],["\u003cp\u003eIt includes SST measurements and quality flags, along with metadata such as acquisition time, processing details, and satellite direction.\u003c/p\u003e\n"],["\u003cp\u003eThe data is freely available for use, including commercial purposes, with proper attribution to JAXA and G-Portal.\u003c/p\u003e\n"],["\u003cp\u003eUsers can access and analyze the dataset through Google Earth Engine using provided code snippets.\u003c/p\u003e\n"]]],["The Japan Aerospace Exploration Agency (JAXA) provides a sea surface temperature (SST) dataset from the Global Change Observation Mission (GCOM-C), available from January 22, 2018, to February 20, 2025. Data, collected daily, uses the SGLI sensor, which measures radiation across 19 channels and is accessible via Earth Engine with a 3-4 day latency. The dataset, featuring `SST_AVE` and `SST_QA_flag` bands, is free for all uses, requiring proper citation of the original G-Portal data.\n"],null,["Dataset Availability\n: 2018-01-22T00:00:00Z--2025-08-29T00:00:00Z\n\nDataset Provider\n:\n\n\n [Global Change Observation Mission (GCOM)](https://suzaku.eorc.jaxa.jp/GCOM/index.html)\n\nCadence\n: 1 Day\n\nTags\n:\n[climate](/earth-engine/datasets/tags/climate) [g-portal](/earth-engine/datasets/tags/g-portal) [gcom](/earth-engine/datasets/tags/gcom) [gcom-c](/earth-engine/datasets/tags/gcom-c) [jaxa](/earth-engine/datasets/tags/jaxa) [ocean](/earth-engine/datasets/tags/ocean) [oceans](/earth-engine/datasets/tags/oceans) [sea-surface-temperature](/earth-engine/datasets/tags/sea-surface-temperature) [sst](/earth-engine/datasets/tags/sst) \n\nDescription \nThis product is the temperature of sea surface.\n\nThis is an ongoing dataset with a latency of 3-4 days.\n\nGCOM-C conducts long-term and continuous global observation and data collection to elucidate the\nmechanism behind fluctuations in radiation budget and carbon cycle needed to make accurate\nprojections regarding future temperature rise. At the same time, cooperating with research\ninstitutions having a climate numerical model, it contributes to reduction of errors in\ntemperature rise prediction derived from the climate numerical model and improvement of accuracy\nof prediction of various environmental changes. SGLI mounted on GCOM-C is the succession sensor\nof the Global Imager (GLI) mounted on ADEOS-II (MIDORI II) and is the Imaging Radiometer which\nmeasures the radiation from near-ultraviolet to thermal infrared region (380 nm-12 um) in 19\nchannels. Global observation of once for approximately every two days is possible at\nmid-latitude near Japan by observation width at ground greater than 1,000 km. In addition, SGLI\nrealizes high resolution than the similar global sensor and has a polarized observation function\nand a multi-angle observation function.\n\nBands\n\n\n**Pixel Size**\n\n4638.3 meters\n\n**Bands**\n\n| Name | Units | Min | Max | Pixel Size | Description |\n|---------------|-------|-----|---------|------------|-----------------------------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| `SST_AVE` | °C | 0\\* | 65531\\* | meters | Temperature of sea surface. |\n| `SST_QA_flag` | | | | meters | SST QA |\n| Bitmask for SST_QA_flag - Bits 0-1: Terrain type - 0: water(land fraction = 0%) - 1: mostly water(0% \\\u003c land fraction \\\u003c 50%) - 2: mostly coastal(50% \\\u003c land fraction \\\u003c 100%) - 3: land(land fraction = 100%) - Bits 2-3: Terrain type - 0: day (night fraction = 0%) - 1: mostly day (0% \\\u003c night fraction \\\u003c 50%) - 2: mostly night (50% \\\u003c night fraction \\\u003c 100%) - 3: night (night fraction = 100%) ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||\n\n\\* estimated min or max value\n\nImage Properties\n\n**Image Properties**\n\n| Name | Type | Description |\n|---------------------|--------|-----------------------------------------------------------------|\n| ALGORITHM_VERSION | STRING | Algorithm version |\n| GRID_INTERVAL | STRING | Spatial resolution |\n| GRID_INTERVAL_UNIT | STRING | Unit of GRID_INTERVAL |\n| IMAGE_END_TIME | STRING | Image acquisition end time |\n| IMAGE_START_TIME | STRING | Image acquisition start time |\n| PROCESSING_RESULT | STRING | Good, Fair, Poor, NG |\n| PROCESSING_UT | STRING | Processing time |\n| PRODUCT_FILENAME | STRING | Source filename |\n| PRODUCT_VERSION | STRING | Product version |\n| SATELLITE_DIRECTION | STRING | Satellite orbit direction - A: Nighttime data - D: Daytime data |\n| SST_AVE_OFFSET | STRING | Offset |\n| SST_AVE_SLOPE | STRING | Slope |\n\nTerms of Use\n\n**Terms of Use**\n\nThis dataset is free to use without any restrictions (including commercial use). Anyone wishing\nto publish analyzed results or value added data products should properly credit the original\nG-Portal data, e.g., \"PR data by Japan Aerospace Exploration Agency\". For value added data\nproducts, please indicate the credit of the original G-Portal data, e.g., \"Original data for\nthis value added data product was provided by Japan Aerospace Exploration Agency.\"\n\nSee [G-Portal's terms of service (Article 7)](https://gportal.jaxa.jp/gpr/index/eula?lang=en)\nfor additional information.\n\nCitations \nCitations:\n\n- Kurihara, Y. (Jun. 2020). GCOM-C/SGLI Sea Surface Temperature (SST) ATBD (Version 2).\n Retrieved from \u003chttps://suzaku.eorc.jaxa.jp/GCOM_C/data/ATBD/ver2/V2ATBD_O1AB_SST_Kurihara_r1.pdf\u003e\n\nExplore with Earth Engine **Important:** Earth Engine is a platform for petabyte-scale scientific analysis and visualization of geospatial datasets, both for public benefit and for business and government users. Earth Engine is free to use for research, education, and nonprofit use. To get started, please [register for Earth Engine access.](https://console.cloud.google.com/earth-engine)\n\nCode Editor (JavaScript) \n\n```javascript\nvar dataset = ee.ImageCollection('JAXA/GCOM-C/L3/OCEAN/SST/V3')\n .filterDate('2021-12-01', '2022-01-01')\n // filter to daytime data only\n .filter(ee.Filter.eq('SATELLITE_DIRECTION', 'D'));\n\n// Multiply with slope coefficient and add offset\nvar dataset = dataset.mean().multiply(0.0012).add(-10);\n\nvar vis = {\n bands: ['SST_AVE'],\n min: 0,\n max: 30,\n palette: ['000000', '005aff', '43c8c8', 'fff700', 'ff0000'],\n};\n\nMap.setCenter(128.45, 33.33, 5);\n\nMap.addLayer(dataset, vis, 'Sea Surface Temperature');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/JAXA/JAXA_GCOM-C_L3_OCEAN_SST_V3) \n[GCOM-C/SGLI L3 Sea Surface Temperature (V3)](/earth-engine/datasets/catalog/JAXA_GCOM-C_L3_OCEAN_SST_V3) \nThis product is the temperature of sea surface. This is an ongoing dataset with a latency of 3-4 days. GCOM-C conducts long-term and continuous global observation and data collection to elucidate the mechanism behind fluctuations in radiation budget and carbon cycle needed to make accurate projections regarding future temperature rise. ... \nJAXA/GCOM-C/L3/OCEAN/SST/V3, climate,g-portal,gcom,gcom-c,jaxa,ocean,oceans,sea-surface-temperature,sst \n2018-01-22T00:00:00Z/2025-08-29T00:00:00Z \n-90 -180 90 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [](https://doi.org/https://suzaku.eorc.jaxa.jp/GCOM/index.html)\n- [](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/JAXA_GCOM-C_L3_OCEAN_SST_V3)"]]
