La temperatura della superficie del mare (OISST) con interpolazione ottimale giornaliera di 1/4 di grado della NOAA fornisce campi di temperatura oceanica completi costruiti combinando osservazioni corrette per la distorsione provenienti da diverse piattaforme (satelliti, navi, boe) su una griglia globale regolare, con lacune colmate mediante interpolazione.
I dati satellitari del radiometro AVHRR (Advanced Very High Resolution Radiometer)
forniscono l'input principale che consente l'elevata copertura spazio-temporale
dalla fine del 1981 a oggi.
Il set di dati OISST contiene i dati di un singolo giorno elaborati due volte. Viene rilasciata prima una versione preliminare quasi in tempo reale con un ritardo di 1 giorno e poi una versione finale con un ritardo di 14 giorni. La versione finale utilizza giorni aggiuntivi per
il livellamento e la correzione della distorsione zonale, oltre a sostituire la
versione preliminare.
Bande
Dimensioni in pixel 27830 metri
Bande
Nome
Unità
Min
Max
Scala
Dimensioni dei pixel
Descrizione
sst
°C
-180*
3764*
0,01
metri
Temperatura giornaliera della superficie del mare
anom
°C
-1887*
1902*
0,01
metri
Anomalia della temperatura: la temperatura giornaliera OISST meno una media climatologica di 30 anni.
ice
%
1*
100*
0,01
metri
Mediana su sette giorni delle concentrazioni giornaliere di ghiaccio marino.
err
°C
11*
171*
0,01
metri
Errore stimato; deviazione standard della temperatura della superficie del mare analizzata.
* Valore minimo o massimo stimato
Proprietà immagini
Proprietà immagini
Nome
Tipo
Descrizione
stato
STRING
"provvisorio" o "permanente"
Termini e condizioni d'uso
Termini e condizioni d'uso
Il punto di distribuzione ufficiale dei CDR del programma NOAA CDR è il National Climatic Data Center della NOAA, che fornisce accesso aperto e continuo e gestione attiva dei dati dei pacchetti CDR e delle informazioni correlate in linea con le politiche e le pratiche di dati aperti degli Stati Uniti, come descritto nel memorandum del presidente sulla "Open Data Policy" e ai sensi dell'ordine esecutivo del 9 maggio 2013, "Making Open and Machine Readable the New Default for Government Information". In linea con queste norme,
i set di dati CDR non sono proprietari, sono disponibili pubblicamente e non
sono previste restrizioni al loro utilizzo. Per saperne di più, consulta il pdf
Fair Use of NOAA's CDR Data Sets, Algorithms and Documentation.
Citazioni
Citazioni:
Richard W. Reynolds, Viva F. Banzon e NOAA CDR Program (2008): NOAA
Optimum Interpolation 1/4 Degree Daily Sea Surface Temperature (OISST)
Analysis, versione 2. [indicate subset used]. NOAA National Centers for
Environmental Information. doi:10.7289/V5SQ8XB5
[data di accesso].
La temperatura della superficie del mare (OISST) giornaliera a 1/4 di grado di NOAA fornisce campi di temperatura oceanica completi costruiti combinando osservazioni corrette per il bias provenienti da diverse piattaforme (satelliti, navi, boe) su una griglia globale regolare, con lacune colmate mediante interpolazione. I dati satellitari dell'Advanced Very High Resolution Radiometer (AVHRR) forniscono…
[null,null,[],[[["\u003cp\u003eThe NOAA CDR OISST V2.1 dataset provides daily sea surface temperature (SST) data from September 1981 to present, combining observations from satellites, ships, and buoys.\u003c/p\u003e\n"],["\u003cp\u003eIt includes sea surface temperature, temperature anomaly, sea ice concentration, and estimated error bands, at a 1/4 degree resolution.\u003c/p\u003e\n"],["\u003cp\u003eBoth preliminary (near real-time) and final versions of data are available, with the final version incorporating additional smoothing and bias correction.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset is freely available for research, education, and non-profit use with no restrictions.\u003c/p\u003e\n"],["\u003cp\u003eOISST relies primarily on satellite data from the Advanced Very High Resolution Radiometer (AVHRR) to achieve comprehensive temporal and spatial coverage.\u003c/p\u003e\n"]]],[],null,["Dataset Availability\n: 1981-09-01T00:00:00Z--2025-08-27T00:00:00Z\n\nDataset Provider\n:\n\n\n [NOAA](https://www.ncei.noaa.gov/products/optimum-interpolation-sst)\n\nCadence\n: 1 Day\n\nTags\n:\n [avhrr](/earth-engine/datasets/tags/avhrr) [cdr](/earth-engine/datasets/tags/cdr) [daily](/earth-engine/datasets/tags/daily) [ice](/earth-engine/datasets/tags/ice) [noaa](/earth-engine/datasets/tags/noaa) [ocean](/earth-engine/datasets/tags/ocean) [oceans](/earth-engine/datasets/tags/oceans) [oisst](/earth-engine/datasets/tags/oisst) [sst](/earth-engine/datasets/tags/sst) [temperature](/earth-engine/datasets/tags/temperature) \nreal-time \n\nDescription \nThe NOAA 1/4 degree daily Optimum Interpolation Sea Surface Temperature\n(OISST) provides complete ocean temperature fields constructed by combining\nbias-adjusted observations from different platforms (satellite, ships,\nbuoys) on a regular global grid, with gaps filled in by interpolation.\nSatellite data from the Advanced Very High Resolution Radiometer (AVHRR)\nprovides the main input which permits the high temporal-spatial coverage\nbeginning in late 1981 to the present.\n\nThe OISST dataset has a single day's data processed twice. First a near\nreal-time preliminary version is released with a lag of 1 day, and a final\nversion with a lag of 14 days. The final version uses extra days for\nsmoothing, and zonal bias correction in addition to replacing the\npreliminary version.\n\nBands\n\n\n**Pixel Size**\n\n27830 meters\n\n**Bands**\n\n| Name | Units | Min | Max | Scale | Pixel Size | Description |\n|--------|-------|---------|--------|-------|------------|---------------------------------------------------------------------------|\n| `sst` | °C | -180\\* | 3764\\* | 0.01 | meters | Daily sea surface temperature |\n| `anom` | °C | -1887\\* | 1902\\* | 0.01 | meters | Temperature anomaly; the daily OISST minus a 30-year climatological mean. |\n| `ice` | % | 1\\* | 100\\* | 0.01 | meters | Seven-day median of daily sea ice concentrations. |\n| `err` | °C | 11\\* | 171\\* | 0.01 | meters | Estimated error; standard deviation of analyzed sea surface temperature. |\n\n\\* estimated min or max value\n\nImage Properties\n\n**Image Properties**\n\n| Name | Type | Description |\n|--------|--------|------------------------------|\n| status | STRING | 'provisional' or 'permanent' |\n\nTerms of Use\n\n**Terms of Use**\n\nThe NOAA CDR Program's official distribution point for CDRs is NOAA's\nNational Climatic Data Center which provides sustained, open access and\nactive data management of the CDR packages and related information in\nkeeping with the United States' open data policies and practices as\ndescribed in the President's Memorandum on \"Open Data Policy\" and pursuant\nto the Executive Order of May 9, 2013, \"Making Open and Machine Readable\nthe New Default for Government Information\". In line with these policies,\nthe CDR data sets are nonproprietary, publicly available, and no\nrestrictions are placed upon their use. For more information, see the\n[Fair Use of NOAA's CDR Data Sets, Algorithms and Documentation](https://www1.ncdc.noaa.gov/pub/data/sds/cdr/CDRs/Aerosol_Optical_Thickness/UseAgreement_01B-04.pdf)\npdf.\n\nCitations \nCitations:\n\n- Richard W. Reynolds, Viva F. Banzon, and NOAA CDR Program (2008): NOAA\n Optimum Interpolation 1/4 Degree Daily Sea Surface Temperature (OISST)\n Analysis, Version 2. \\[indicate subset used\\]. NOAA National Centers for\n Environmental Information. [doi:10.7289/V5SQ8XB5](https://doi.org/10.7289/V5SQ8XB5)\n \\[access date\\].\n\nDOIs\n\n- \u003chttps://doi.org/10.7289/V5SQ8XB5\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('NOAA/CDR/OISST/V2_1')\n .filter(ee.Filter.date('2017-05-01', '2017-05-14'));\nvar seaSurfaceTemperature = dataset.select('sst');\nvar visParams = {\n min: -180.0,\n max: 3000.0,\n palette: [\n '040274', '040281', '0502a3', '0502b8', '0502ce', '0502e6',\n '0602ff', '235cb1', '307ef3', '269db1', '30c8e2', '32d3ef',\n '3be285', '3ff38f', '86e26f', '3ae237', 'b5e22e', 'd6e21f',\n 'fff705', 'ffd611', 'ffb613', 'ff8b13', 'ff6e08', 'ff500d',\n 'ff0000', 'de0101', 'c21301', 'a71001', '911003'\n ],\n};\nMap.setCenter(20.3, -20.39, 2);\nMap.addLayer(seaSurfaceTemperature, visParams, 'Sea Surface Temperature');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/NOAA/NOAA_CDR_OISST_V2_1) \n[NOAA CDR OISST v02r01: Optimum Interpolation Sea Surface Temperature](/earth-engine/datasets/catalog/NOAA_CDR_OISST_V2_1) \nThe NOAA 1/4 degree daily Optimum Interpolation Sea Surface Temperature (OISST) provides complete ocean temperature fields constructed by combining bias-adjusted observations from different platforms (satellite, ships, buoys) on a regular global grid, with gaps filled in by interpolation. Satellite data from the Advanced Very High Resolution Radiometer (AVHRR) provides the ... \nNOAA/CDR/OISST/V2_1, avhrr,cdr,daily,ice,noaa,ocean,oceans,oisst,sst,temperature \n1981-09-01T00:00:00Z/2025-08-27T00:00:00Z \n-90 -180 90 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [https://doi.org/10.7289/V5SQ8XB5](https://doi.org/https://www.ncei.noaa.gov/products/optimum-interpolation-sst)\n- [https://doi.org/10.7289/V5SQ8XB5](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/NOAA_CDR_OISST_V2_1)"]]
