Independent Variables (Grids)

Latitude (projection_y_coordinate)	grid: /lat (degree_north) ordered (89.875S) to (89.875N) by 0.25 N= 720 pts :grid
Longitude (projection_x_coordinate)	grid: /lon (degree_east) periodic (0.125E) to (0.125W) by 0.25 N= 1440 pts :grid
Time (time)	grid: /T (julian_day) ordered (1 Sep 1981) to (19 Nov 2023) by 1.0 N= 15420 pts :grid
zlev	grid: /zlev (meters) ordered [ (0.0)] :grid

Other Info

cdm_data_type

Grid

comment

Data was converted from NetCDF-3 to NetCDF-4 format with metadata updates in November 2017.

Conventions

CF-1.6, ACDD-1.3

creator_email

oisst-help@noaa.gov

creator_url

https://www.ncei.noaa.gov/

geospatial_lat_max

90.0

geospatial_lat_min

-90.0

geospatial_lat_resolution

0.25

geospatial_lat_units

degrees_north

geospatial_lon_max

360.0

geospatial_lon_min

0.0

geospatial_lon_resolution

0.25

geospatial_lon_units

degrees_east

institution

NOAA/National Centers for Environmental Information

instrument

Earth Remote Sensing Instruments > Passive Remote Sensing > Spectrometers/Radiometers > Imaging Spectrometers/Radiometers > AVHRR > Advanced Very High Resolution Radiometer

instrument_vocabulary

Global Change Master Directory (GCMD) Instrument Keywords

keywords

Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature

keywords_vocabulary

Global Change Master Directory (GCMD) Earth Science Keywords

metadata_link

https://doi.org/10.25921/RE9P-PT57

naming_authority

gov.noaa.ncei

ncei_template_version

NCEI_NetCDF_Grid_Template_v2.0

platform

Ships, buoys, Argo floats, MetOp-A, MetOp-B

platform_vocabulary

Global Change Master Directory (GCMD) Platform Keywords

processing_level

NOAA Level 4

product_version

Version v02r01

sensor

Thermometer, AVHRR

source

ICOADS, NCEP_GTS, GSFC_ICE, NCEP_ICE, Pathfinder_AVHRR, Navy_AVHRR

standard_name_vocabulary

CF Standard Name Table (v40, 25 January 2017)

summary

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 (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

title

NOAA/NCEI 1/4 Degree Daily Optimum Interpolation Sea Surface Temperature (OISST) Analysis, Version 2.1 - Final

history

Final file created using preliminary as first guess, and 3 days of AVHRR data. Preliminary uses only 1 day of AVHRR data.

References

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 and Navy AVHRR SST. Ice data: NCEP Ice and GSFC Ice.

Last updated: Mon, 04 Dec 2023 16:17:38 GMT
Expires: Sat, 02 Dec 2023 00:00:00 GMT