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4 km AVHRR Pathfinder Project
***ANNOUNCEMENT 27 August 2016: NCEI releases AVHRR Pathfinder Version 5.3***
NCEI is pleased to release the AVHRR Pathfinder Version 5.3 (PFV53) sea surface temperature data set. See https://data.nodc.noaa.gov/cgi-bin/iso?id=gov.noaa.nodc:AVHRR_Pathfinder-NCEI-L3C-v5.3 for more information.
***ANNOUNCEMENT October 2013: NODC releases AVHRR Pathfinder Version 5.2 for the year 2012***
The AVHRR Pathfinder Version 5.2 (PFV52) data set was computed using an entirely
modernized system, based on SeaDAS and incorporating several key changes over the
older Pathfinder V5.0 and V5.1 datasets. PFV52 is viewed as a significant step forward
in preparation for the future Version 6 (PFV6) data set (no release has yet been
established for PFV6). Changes in PFV52 include the use of an entirely new land mask,
a modified grid, and the inclusion of sea ice and wind speed ancillary data to support
the use of the SST data. Importantly, the new PFV52 data are provided in netCDF-4
(classic model, with internal compression and chunking) and are nearly 100% compliant
with the GHRSST Data Specification Version 2.0 (GDS2.0,
http://data.nodc.noaa.gov/pathfinder/Version5.2/GDS_TechSpecs_v2.0.pdf) for L3C
products. These data deviate from that standard only in that the sses_bias,
sses_standard_deviation, and sst_dtime variables are empty. Data for 1981-2012 are available.
All of the PFV52
data are available through NCEI's FTP, HTTP,
Pathfinder is a NOAA official Climate Data Record for Sea Surface Temperature: http://www.ncdc.noaa.gov/cdr/
In addition to embracing the National Research Council CDR definition (Climate Data Records from Environmental Satellites: Interim Report 2004) , NOAA operational CDRs are routinely assessed for quality and systematically generated. The first step in establishing an operational CDR includes public posting of the source code that generated the CDR dataset, the dataset itself, and supporting documentation through a six-phase Research-to-Operations process that is described in the Developers Guidelines.
The following table lists known issues with the PFV52 data set:
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Acknowledgment & Citation:
If you use Pathfinder 4km data, please acknowledge the use of these data with the following statement: "These data were provided by GHRSST and the US National Oceanographic Data Center. This project was supported in part by a grant from the NOAA Climate Data Record (CDR) Program for satellites".
and cite the following publication:
Casey, K.S., T.B. Brandon, P. Cornillon, and R. Evans (2010). "The Past, Present and Future of the AVHRR Pathfinder SST Program", in Oceanography from Space: Revisited, eds. V. Barale, J.F.R. Gower, and L. Alberotanza, Springer. DOI: 10.1007/978-90-481-8681-5_16. (Click here for a PDF copy).
Sample text for a journal article:
In this study, we used AVHRR Pathfinder Version 5.2 (PFV5.2) data, obtained from the US National Oceanographic Data Center and GHRSST (http://pathfinder.nodc.noaa.gov). The PFV5.2 data are an updated version of the Pathfinder Version 5.0 and 5.1 collection described in Casey et al. (2010).[an error occurred while processing this directive]
GOSTA NPOESS VIIRS OPeNDAP DODS LAS HRPT LAC GAC HDF-SDS DMAC PO.DAAC LTSRF CoRTAD
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