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Journal for accession number:  0209185
Created on:                    2020-03-05 17:52:24 UTC
By:                            Korak Saha, NCEI

Source: This accession contains Version 6 of the Coral Reef Temperature
Anomaly Database (CoRTAD), a global, 4 km, sea surface temperature and
related thermal stress metrics dataset for 1982-2019.

Actions: In March 2020, CoRTAD Version 6 data were generated at the NOAA
National Centers for Environmental Information (NCEI) using the AVHRR
Pathfinder V5.3 SSTs. CoRTAD Version 6 is the sixth in the series of CoRTAD
datasets. In this version the following changes are made:

1. Similar to version 5 CoRTAD V6 data files are global in extent and contain
one group of variables per file. In CoRTAD V4 and earlier, the globe was
divided into 128 smaller regions and each file contained all of the variables.

2. Each file represents the weekly averaged data for 1982-2019 for the
particular group of variables. 

3. The metadata in the header of each netCDF file is revised and optimized to
be fully compliant with the CF and ACDD conventions and with the NODC netCDF
templates.

4. NOAA-19 is also included in CoRTAD V6 calculations.

5. Two additional ancillary data files with weekly average of Wind Speed and
Sea Ice Fraction are added.

Once the data were produced by NCEI, this archival information package (NCEI
Accession) was generated. The files in netCDF format were copied to the
data/0-data/ directory. A sample browse graphic for the SST anomaly data was
created and copied to the about/ directory.

Files:

about/
This directory contains files created by NCEI staff, including 'negotiable'
information between NCEI staff and the data provider.

journal.txt -
    This file.

0209185_preview.png - 
    Sample of a global map for the corresponding variables.

data/0-data/
This directory contains files in their original format as generated at NCEI.

cortadv6_HarmonicsClimatology.nc - cortadv6_"variable name".nc;
where "variable name":
FilledSST, HarmonicsClimatology, MedfillSST, SSTA, SeaIceFraction, TSA, WeeklySST, WindSpeed