Index of /datalake/bcpu-data-repo/CMEMS/OSTIA/docs

[ICO]NameLast modifiedSizeDescription
[PARENTDIR]Parent Directory  -  
# Dataset Overview

## 1. Dataset Name
1. Global Ocean OSTIA Sea Surface Temperature and Sea Ice Reprocessed
Product ID: SST_GLO_SST_L4_REP_OBSERVATIONS_010_011
2. Global Ocean OSTIA Sea Surface Temperature and Sea Ice Analysis
Product ID: SST_GLO_SST_L4_NRT_OBSERVATIONS_010_001

## 2. Description
1. The OSTIA (Worsfold et al. 2024) global sea surface temperature reprocessed product provides daily gap-free maps of foundation sea surface temperature and ice concentration (referred to as an L4 product) at 0.05deg.x 0.05deg. horizontal grid resolution, using in-situ and satellite data. This product provides the foundation Sea Surface Temperature, which is the temperature free of diurnal variability.
2. For the Global Ocean- the OSTIA global foundation Sea Surface Temperature product provides daily gap-free maps of: Foundation Sea Surface Temperature at 0.05° x 0.05° horizontal grid resolution, using in-situ and satellite data from both infrared and microwave radiometers. The Operational Sea Surface Temperature and Ice Analysis (OSTIA) system is run by the UK's Met Office. OSTIA uses satellite data provided by the GHRSST project together with in-situ observations to determine the sea surface temperature. A high resolution (1/20° - approx. 6 km) daily analysis of sea surface temperature (SST) is produced for the global ocean and some lakes.
## 3. Data Source
- Provider: Copernicus Marine Environment Monitoring Service (CMEMS); Copernicus Marine Service
- Originating centre: Met Office (UK)
- Original source (URL or DOI):
1. https://doi.org/10.48670/moi-00168 (rep)
2. https://doi.org/10.48670/moi-00165 (nrt)
- Access date: 2026-01-05

## 4. Spatial and Temporal Coverage
- Spatial domain: Global Ocean; Lat -89.97 to 89.97; Lon -179.98 to 179.98
- Spatial resolution: 0.05deg x 0.05deg
- Temporal coverage:
1. 1982/01/01 - 2022/05/31 (rep)
2. 2007/01/01 - present (nrt)
- Temporal resolution: daily

## 5. Variables
- sea_ice_fraction: sea ice area fraction (%)
- analysed_sst: analysed sea surface temperature (K)

## 6. Data Structure
raw/rep
/nrt
processed/climatology
/daily
/monthly
scripts/
docs/README.md

## 7. Processing Overview
High-level description of how the data were processed.
Detailed processing steps should be documented in scripts/README.md.
TBD

## 8. Quality Control (if applicable)
Describe any quality control or validation applied to the data.
N/A

## 9. Usage Notes
Important notes, known limitations, or caveats for data users.
N/A

## 10. License
N/A

## 11. Contact (Mandatory)
- Name: Mariko Koseki
- Email: mariko.koseki@uib.no

## 12. Created (Mandatory)
- Date (YYYY-MM-DD): 2026-01-05

## 13. Version History (Optional)
- vX.X - brief description of changes