DATA
GHRSST Level 4 AVHRR_OI Global Blended Sea Surface Temperature Analysis (GDS version 2) from NCEI
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DOI
10.5067/GHAAO-4BC02
Short Name
AVHRR_OI-NCEI-L4-GLOB-v2.0
Description
A Group for High Resolution Sea Surface Temperature (GHRSST) global Level 4 sea surface temperature analysis produced daily on a 0.25 degree grid at the NOAA National Centers for Environmental Information. This product uses optimal interpolation (OI) 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. 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 (AVHRR-OI), available from September 1, 1981, but there is a companion SST product that includes microwave satellite data, available from June 2002.
Version
2.0
Measurement
Oceans
› Ocean Temperature
› Sea Surface Temperature
› Blended Sea Surface Temperature
Processing Level
4
Coverage
Global
Northernmost Latitude
90.0
Southernmost Latitude
-90.0
Westernmost Longitude
-180.0
Easternmost Longitude
180.0
Time Span(s)
September 1, 1981 to
Present
Resolution
Temporal Resolution
1 Day
Spatial Resolution
0.25 degrees (Latitude) x 0.25 degrees (Longitude)
Projection
-
Platform/Sensor
InSitu/InSitu, NOAA-16/AVHRR-3, NOAA-17/AVHRR-3, NOAA-18/AVHRR-3, NOAA-11/AVHRR-2, NOAA-7/AVHRR-2, NOAA-9/AVHRR-2, NOAA-14/AVHRR-2
Project
Group for High Resolution Sea Surface Temperature
(GHRSST)
Data Provider
PO.DAAC
