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| Grid DAP Data | Sub- set | Table DAP Data | Make A Graph | W M S | Source Data Files | Acces- sible
| Title | Sum- mary | FGDC, ISO, Metadata | Back- ground Info | RSS | E | Institution | Dataset ID |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| data | graph | M | files | public | SST, Daily Optimum Interpolation (OI), AVHRR Only, Version 2.1, Final, Global, 0.25°, 1981- present |
| F I M | background
| 
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| NOAA NCEI | ncdcOisst21Agg |
| Row Type | Variable Name | Attribute Name | Data Type | Value |
|---|---|---|---|---|
| attribute | NC_GLOBAL | _NCProperties | String | version=2,netcdf=4.8.1,hdf5=1.10.7 |
| attribute | NC_GLOBAL | cdm_data_type | String | Grid |
| attribute | NC_GLOBAL | comment | String | Data was converted from NetCDF-3 to NetCDF-4 format with metadata updates in November 2017. |
| attribute | NC_GLOBAL | Conventions | String | CF-1.6, ACDD-1.3, COARDS |
| attribute | NC_GLOBAL | creator_email | String | oisst-help at noaa.gov |
| attribute | NC_GLOBAL | creator_name | String | NOAA NCEI |
| attribute | NC_GLOBAL | creator_type | String | group |
| attribute | NC_GLOBAL | creator_url | String | https://www.ncei.noaa.gov/ |
| attribute | NC_GLOBAL | date_created | String | 2024-09-26T13:14:00Z |
| attribute | NC_GLOBAL | date_modified | String | 2024-09-26T13:14:00Z |
| attribute | NC_GLOBAL | Easternmost_Easting | double | 359.875 |
| attribute | NC_GLOBAL | geospatial_lat_max | double | 89.875 |
| attribute | NC_GLOBAL | geospatial_lat_min | double | -89.875 |
| attribute | NC_GLOBAL | geospatial_lat_resolution | double | 0.25 |
| attribute | NC_GLOBAL | geospatial_lat_units | String | degrees_north |
| attribute | NC_GLOBAL | geospatial_lon_max | double | 359.875 |
| attribute | NC_GLOBAL | geospatial_lon_min | double | 0.125 |
| attribute | NC_GLOBAL | geospatial_lon_resolution | double | 0.25 |
| attribute | NC_GLOBAL | geospatial_lon_units | String | degrees_east |
| attribute | NC_GLOBAL | history | String | Final file created using preliminary as first guess, and 3 days of AVHRR data. Preliminary uses only 1 day of AVHRR data. New files are downloaded daily from https://www.ncei.noaa.gov/data/sea-surface-temperature-optimum-interpolation/v2.1/access/avhrr/ to NOAA NMFS SWFSC ERD by erd.data@noaa.gov . |
| attribute | NC_GLOBAL | id | String | ncdcOisst21NrtAgg |
| attribute | NC_GLOBAL | infoUrl | String | https://doi.org/10.25921/RE9P-PT57 |
| attribute | NC_GLOBAL | institution | String | NOAA NCEI |
| attribute | NC_GLOBAL | instrument | String | Earth Remote Sensing Instruments > Passive Remote Sensing > Spectrometers/Radiometers > Imaging Spectrometers/Radiometers > AVHRR > Advanced Very High Resolution Radiometer |
| attribute | NC_GLOBAL | instrument_vocabulary | String | Global Change Master Directory (GCMD) Instrument Keywords |
| attribute | NC_GLOBAL | keywords | String | advanced, analysed, analysis, anomalies, anomaly, avhrr, centers, concentration, daily, data, day, degree, deviation, distribution, earth, Earth Science > Land Surface > Land Temperature > Land Surface Temperature, Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature, environmental, error, estimated, final, high, ice, ice distribution, information, interpolation, land, national, ncei, near, nesdis, noaa, nrt, ocean, oceans, oisst, optimum, radiometer, real, resolution, science, sea, sea_surface_temperature, sst, standard, statistics, surface, surface_temperature_anomaly, temperature, time, version, very, vhrr, zlev |
| attribute | NC_GLOBAL | keywords_vocabulary | String | GCMD Science Keywords |
| attribute | NC_GLOBAL | license | String | The data may be used and redistributed for free but is not intended for legal use, since it may contain inaccuracies. Neither the data Contributor, ERD, NOAA, nor the United States Government, nor any of their employees or contractors, makes any warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, or assumes any legal liability for the accuracy, completeness, or usefulness, of this information. |
| attribute | NC_GLOBAL | metadata_link | String | https://doi.org/10.25921/RE9P-PT57 |
| attribute | NC_GLOBAL | naming_authority | String | gov.noaa.pfeg.coastwatch |
| attribute | NC_GLOBAL | Northernmost_Northing | double | 89.875 |
| attribute | NC_GLOBAL | platform | String | Ships, buoys, Argo floats, MetOp-A, MetOp-B |
| attribute | NC_GLOBAL | platform_vocabulary | String | Global Change Master Directory (GCMD) Platform Keywords |
| attribute | NC_GLOBAL | processing_level | String | NOAA Level 4 |
| attribute | NC_GLOBAL | product_version | String | Version v02r01 |
| attribute | NC_GLOBAL | references | String | Reynolds, et al.(2007) Daily High-Resolution-Blended Analyses for Sea Surface Temperature (available at https://doi.org/10.1175/2007JCLI1824.1). Banzon, et al.(2016) A long-term record of blended satellite and in situ sea-surface temperature for climate monitoring, modeling and environmental studies (available at https://doi.org/10.5194/essd-8-165-2016). Huang et al. (2020) Improvements of the Daily Optimum Interpolation Sea Surface Temperature (DOISST) Version v02r01, submitted.Climatology is based on 1971-2000 OI.v2 SST. Satellite data: Pathfinder AVHRR SST, Navy AVHRR SST, and NOAA ACSPO SST. Ice data: NCEP Ice and GSFC Ice. |
| attribute | NC_GLOBAL | sensor | String | Thermometer, AVHRR |
| attribute | NC_GLOBAL | source | String | ICOADS, NCEP_GTS, GSFC_ICE, NCEP_ICE, Pathfinder_AVHRR, Navy_AVHRR, NOAA_ACSP |
| attribute | NC_GLOBAL | sourceUrl | String | (local files) |
| attribute | NC_GLOBAL | Southernmost_Northing | double | -89.875 |
| attribute | NC_GLOBAL | standard_name_vocabulary | String | CF Standard Name Table v70 |
| attribute | NC_GLOBAL | summary | String | This is the final version of the related dataset "ncdcOisst21NrtAgg", which has the preliminary, near real time version of these files. These final files are released about 2 weeks after the NRT files. NOAA/National Centers for Environmental Information (NCEI) 1/4 Degree Daily Optimum Interpolation Sea Surface Temperature (OISST) Analysis, Version 2.1 - Final. NOAAs 1/4-degree Daily Optimum Interpolation Sea Surface Temperature (OISST) (sometimes referred to as Reynolds SST, which however also refers to earlier products at different resolution), currently available as version v02r01, is created by interpolating and extrapolating SST observations from different sources, resulting in a smoothed complete field. The sources of data are satellite (Advanced Very High Resolution Radiometer (AVHRR)) and in situ platforms (i.e., ships and buoys), and the specific datasets employed may change over time. At the marginal ice zone, sea ice concentrations are used to generate proxy SSTs. A preliminary version of this file is produced in near-real time (1-day latency), and then replaced with a final version after 2 weeks. Note that this is the AVHRR-ONLY DOISST, available from Oct 1981, but there is a companion DOISST product that includes microwave satellite data, available from June 2002 |
| attribute | NC_GLOBAL | testOutOfDate | String | now-17days |
| attribute | NC_GLOBAL | time_coverage_end | String | 2024-09-11T12:00:00Z |
| attribute | NC_GLOBAL | time_coverage_start | String | 1981-09-01T12:00:00Z |
| attribute | NC_GLOBAL | title | String | SST, Daily Optimum Interpolation (OI), AVHRR Only, Version 2.1, Final, Global, 0.25°, 1981-present |
| attribute | NC_GLOBAL | Westernmost_Easting | double | 0.125 |
| dimension | time | double | nValues=15712, evenlySpaced=false, averageSpacing=1 day 0h 0m 27s | |
| attribute | time | _CoordinateAxisType | String | Time |
| attribute | time | actual_range | double | 3.681936E8, 1.726056E9 |
| attribute | time | axis | String | T |
| attribute | time | ioos_category | String | Time |
| attribute | time | long_name | String | Center time of the day |
| attribute | time | standard_name | String | time |
| attribute | time | time_origin | String | 01-JAN-1970 00:00:00 |
| attribute | time | units | String | seconds since 1970-01-01T00:00:00Z |
| dimension | zlev | float | nValues=1, onlyValue=0.0 | |
| attribute | zlev | actual_range | float | 0.0, 0.0 |
| attribute | zlev | ioos_category | String | Location |
| attribute | zlev | long_name | String | Sea surface height |
| attribute | zlev | positive | String | down |
| attribute | zlev | standard_name | String | sea_surface_height |
| attribute | zlev | units | String | m |
| dimension | latitude | float | nValues=720, evenlySpaced=true, averageSpacing=0.25 | |
| attribute | latitude | _CoordinateAxisType | String | Lat |
| attribute | latitude | actual_range | float | -89.875, 89.875 |
| attribute | latitude | axis | String | Y |
| attribute | latitude | grids | String | Uniform grid from -89.875 to 89.875 by 0.25 |
| attribute | latitude | ioos_category | String | Location |
| attribute | latitude | long_name | String | Latitude |
| attribute | latitude | standard_name | String | latitude |
| attribute | latitude | units | String | degrees_north |
| dimension | longitude | float | nValues=1440, evenlySpaced=true, averageSpacing=0.25 | |
| attribute | longitude | _CoordinateAxisType | String | Lon |
| attribute | longitude | actual_range | float | 0.125, 359.875 |
| attribute | longitude | axis | String | X |
| attribute | longitude | grids | String | Uniform grid from 0.125 to 359.875 by 0.25 |
| attribute | longitude | ioos_category | String | Location |
| attribute | longitude | long_name | String | Longitude |
| attribute | longitude | standard_name | String | longitude |
| attribute | longitude | units | String | degrees_east |
| variable | sst | float | time, zlev, latitude, longitude | |
| attribute | sst | _FillValue | float | -9.99 |
| attribute | sst | colorBarMaximum | double | 32.0 |
| attribute | sst | colorBarMinimum | double | 0.0 |
| attribute | sst | ioos_category | String | Temperature |
| attribute | sst | long_name | String | Daily sea surface temperature |
| attribute | sst | standard_name | String | sea_surface_temperature |
| attribute | sst | units | String | degree_C |
| attribute | sst | valid_max | float | 45.0 |
| attribute | sst | valid_min | float | -3.0 |
| variable | anom | float | time, zlev, latitude, longitude | |
| attribute | anom | _FillValue | float | -9.99 |
| attribute | anom | colorBarMaximum | double | 3.0 |
| attribute | anom | colorBarMinimum | double | -3.0 |
| attribute | anom | ioos_category | String | Temperature |
| attribute | anom | long_name | String | Daily sea surface temperature anomalies |
| attribute | anom | standard_name | String | surface_temperature_anomaly |
| attribute | anom | units | String | degree_C |
| attribute | anom | valid_max | float | 12.0 |
| attribute | anom | valid_min | float | -12.0 |
| variable | err | float | time, zlev, latitude, longitude | |
| attribute | err | _FillValue | float | -9.99 |
| attribute | err | colorBarMaximum | double | 0.6 |
| attribute | err | colorBarMinimum | double | 0.0 |
| attribute | err | colorBarPalette | String | WhiteRedBlack |
| attribute | err | ioos_category | String | Statistics |
| attribute | err | long_name | String | Estimated error standard deviation of analysed_sst |
| attribute | err | units | String | degree_C |
| attribute | err | valid_max | float | 10.0 |
| attribute | err | valid_min | float | 0.0 |
| variable | ice | float | time, zlev, latitude, longitude | |
| attribute | ice | _FillValue | float | -9.99 |
| attribute | ice | colorBarMaximum | double | 1.0 |
| attribute | ice | colorBarMinimum | double | 0.0 |
| attribute | ice | colorBarPalette | String | BlackBlueWhite |
| attribute | ice | ioos_category | String | Ice Distribution |
| attribute | ice | long_name | String | Sea ice concentration |
| attribute | ice | standard_name | String | sea_ice_area_fraction |
| attribute | ice | units | String | 1 |
| attribute | ice | valid_max | float | 1.0 |
| attribute | ice | valid_min | float | 0.0 |
The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV1, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.