During the averaging process, NODATA pixels were not included; data pixels with no corresponding data pixels were maintained as their original number to maximize the amount of available data. The complete product development process is available at http://www.nodc.noaa.gov/SatelliteData/pathfinder4km/PFV5_GIS_tutorial.html.
The NODC collection of value-added, cloud-screened products in HDF4 were developed from original AVHRR Pathfinder files archived at the NODC. These products contain daytime, nighttime, and day-night averaged data of quality flags 4-7, as well as standard deviation and pixel count information. They have been produced from the original Pathfinder Version 5.0 data by NODC for Daily, 5-day, 7-day, and monthly temporal averages at 4km and one degree spatial resolution, as well as five degree spatial resolution for monthly products. The monthly full resolution products were utilized to develop the final GIS files of this data set. While these cloudscreened files are derived from official Pathfinder Version 5.0 data, they are NOT part of the official NODC Version 5.0 collection. To access this collection use the Version5.0/ directory at the NODC's Pathfinder section of the website. For more information on their provenance, contents, or relationship to official Pathfinder Version 5.0 data, please contact Ken Casey at Kenneth.Casey@noaa.gov. NODC December 2010
Online Links:
| Value | Definition |
|---|---|
| sea surface temperature | The .HDF files are 16-bit files, and pixel values can range from 0 to 65535 (2 to the 16th power). However, realistic pixel values for SST will always be less than 600 or so. SST in degrees C = (0.075 * pixel value) - 3.0, so a pixel value of 600 equals 42 degrees C, a temperature which exceeds normal SST limits. Temperatures are represented in 0.075 degree C increments |
Sheri Phillips, Yuanjie Li, Upendra Dadi, and Tess Brandon, NOAA National Oceanographic Data Center
These data files were produced to facilitate the utilization of high resolution Pathfinder v5 sea surface temperature data within geographic information system (GIS)software.
Online Links:
Are there legal restrictions on access or use of the data?
- Access_Constraints: None
- Use_Constraints:
- Please acknowledge the use of these data with - The Pathfinder Version 5 SST Data were provided by the NOAA/National Oceanographic Data Center at URL: http://pathfinder.nodc.noaa.gov
NOAA makes no warranty regarding these data, expressed or implied, nor does the fact of distribution constitute such a warranty. NOAA and NODC cannot assume liability for any damages caused by any errors or omissions in these data, nor as a result of the failure of these data to function on a particular system.
| Data format: | Global monthly and yearly SST averages developed from Pathfinder v. 5 day-night cloudscreened full resolution data in format TIFF GeoTIFF Size: 11250.0 |
|---|---|
| Network links: |
https://accession.nodc.noaa.gov/0077816 |
| Data format: | Browse graphics associated with corresponding SST GeoTIFFs in format PNG Portable Network Graphics Size: 3750.0 |
|---|---|
| Network links: |
https://accession.nodc.noaa.gov/0077816 |
| Data format: | The file Pathfinder_v5.0_monthly&yearly_mean_daynight_SST.kml links to and displays monthly and yearly SST .png browse images included in this data set. Additional .kml files for individual years are in each yearly browse folder. in format KML Size: .21191 |
|---|---|
| Network links: |
http://www.nodc.noaa.gov/archive/arc0041/0077816/2.3/data/0-data/Pathfinder_v5.0_SST-all_kml_file/Pathfinder_v5.0_monthly&yearly_mean_daynight_SST.kml |
These data may be directly downloaded from the NOAA NODC Oceanographic Data Archive, or contact the NODC for custom orders (when ordering data from the NODC, a data set may be referred to by the 7-digit Accession Number listed in the RESOURCE DESCRIPTION field of this metadata record).
Within 24 hours for direct download
| Data format: | Global monthly and yearly SST averages developed from Pathfinder v. 5 day-night cloudscreened full resolution data in format TIFF GeoTIFF Size: 11250.0 |
|---|---|
| Network links: |
ftp://ftp-oceans.ncei.noaa.gov/pub/data.nodc/ncei/archive/data/0077816/ |
| Data format: | Browse graphics associated with corresponding SST GeoTIFFs in format PNG GeoTIFFs exported to .png via ArcMap v10 Size: 3750.0 |
|---|---|
| Network links: |
ftp://ftp-oceans.ncei.noaa.gov/pub/data.nodc/ncei/archive/data/0077816/ |
| Data format: | The file Pathfinder_v5.0_monthly&yearly_mean_daynight_SST.kml contains and displays monthly and yearly SST .png browse images included in this data set. Additional .kml files for individual years are in each yearly browse folder. in format KML Size: .21191 |
|---|---|
| Network links: |
ftp://ftp.nodc.noaa.gov/nodc/archive/arc0041/0077816/ |
Navigate to the ftp location listed in this metadata record, or contact the NODC for custom orders (when ordering data from the NODC, a data set may be referred to by the 7-digit Accession Number listed in the RESOURCE DESCRIPTION field of this metadata record).
Usually within 24 hours.
Contact the NODC User Services Group via phone/FAX/E-mail: nodc.services@noaa.gov
PC, Mac, UNIX or other, standard Internet browser, ability to work with/utilize GIS files strongly recommended, knowledge of satellite data products
