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  AVHRR - Sea Surface Temperature (SST) - Europe

The AVHRR Mulitchannel Sea Surface Temperature Map (MCSST) was the first result of DLR's AVHRR pathfinder activities. The goal of the product is to provide the user with actual Sea Surface Temperature (SST) maps in a defined format easy to access with the highest possible reliability on the thematic quality. After a phase of definition, the operational production chain was launched in March 1993 covering the entire Mediterranean Sea and the Black Sea. Since then, daily, weekly, and monthly data sets have been available until September 13, 1994, when the AVHRR on board the NOAA-11 spacecraft failed. The production of daily, weekly and monthly SST maps was resumed in February, 1995, based on NOAA-14 AVHRR data. The NOAA-14 AVHRR sensor became some technical difficulties, so the generation was stopped on October 3, 2001. Since March 2002, NOAA-16 AVHRR SST maps are available again. With the beginning of January 2004, the data of AVHRR on board of NOAA-16 exhibited some anormal features showing strips in the scenes. Facing the “bar coded” images of NOAA16-AVHRR which occurred first in September 2003, continued in January 2004 for the second time and appeared in April 2004 again, DFD has decided to stop the reception of NOAA16 data on April 6th, 2004, and to start the reception of NOAA-17 data on this day. On April 7th, 2004, the production of all former NOAA16-AVHRR products as e.g. the SST composites was successully established. NOAA-17 is an AM sensor which passes central Europe about 2 hours earlier than NOAA-16 (about 10:00 UTC instead of 12:00 UTC for NOAA-16). In spring 2007, the communication system of NOAA-17 has degraded or is operating with limitations. Therefore, DFD has decided to shift the production of higher level products (NDVI, LST and SST) from NOAA-17 to NOAA-18 in April 2007. In order to test the performance of our processing chains, we processed simultaneously all NOAA-17 and NOAA-18 data from January 1st, 2007 till March 29th, 2007. All products are be available via EOWEB. Please remember that NOAA-18 is a PM sensor which passes central Europe about 1.5 hours later than NOAA-17 (about 11:30 UTC instead of 10:00 UTC for NOAA17). The SST product is intended for climate modelers, oceanographers, and all geo science-related disciplines dealing with ocean surface parameters. In addition, SST maps covering the North Atlantic, the Baltic Sea, the North Sea and the Western Atlantic equivalent to the Mediterranean MCSST maps are available since August 1994. The most important aspects of the MCSST maps are a) correct image registration and b) reasonable cloud screening to ensure that only cloud free pixels are taken for the later processing and compositing c) for deriving MCSST, only channel 4 and 5 are used.. The SST product consists of one 8 bit channel. For additional information, please see: https://wdc.dlr.de/sensors/avhrr/
 
Citation proposal
. AVHRR - Sea Surface Temperature (SST) - Europe. https://gdk.gdi-de.org/geonetwork/srv/api/records/802569b8-fb56-4d78-a2e8-3e4549ff475b
 
  • INSPIRE
  • SDS

INSPIRE

Identification

File identifier
802569b8-fb56-4d78-a2e8-3e4549ff475b   XML
Hierarchy level
Series
Online resource
Protocol
WWW:LINK-1.0-http--link
Protocol
OGC:WMS
Resource identifier
code
https://geoservice.dlr.de/catalogue/srv/metadata/802569b8-fb56-4d78-a2e8-3e4549ff475b
Metadata language
English
Encoding
Projection
 

Classification of data and services

Topic category
  • Oceans
 

Classification of data and services

Coupled resource
Coupled resource
 
 

Classification of data and services

Coupled resource
Coupled resource
 
 

Keywords

GEMET - INSPIRE themes, version 1.0 ( Theme )
  • Oceanographic geographical features
Other keywords
Keywords
  • AVHRR
  • NOAA-11
  • NOAA-14
  • NOAA-16
  • NOAA-17
  • NOAA-18
  • NOAA-19
  • Sea Surface Temperature
  • Europe
  • urn:eop:DLR:EOWEB:NOAA.AVHRR.SST
  • FEDEO
 
 

Geographic coverage

N
S
E
W


N
S
E
W


N
S
E
W


 

Temporal reference

Temporal extent
Temporal extent
Date ( Creation )
2011-01-29T00:00:00
 

Quality and validity

Lineage
The SST product is derived from NOAA AVHRR data received at DLR. The processing steps are outlined below: 1. Automatic pre-navigation / interactive supervision 2. Calibration of thermal channels of NOAA-11, NOAA-14, NOAA-16, NOAA-17 and NOAA-18 AVHRR 3. Cloud Screening and Clearing 4. Derivation of the Multi Channel Sea Surface Temperature (MCSST) 5. Remapping 6. Compositing / synthesis 7. Ocean masking 8. Integer-scaling.
 

Conformity

Conformity
Conformity
 

Conformity

Conformity
Conformity
Explanation
See the referenced specification
 

Restrictions on access and use

Access constraints
License: https://geoservice.dlr.de/resources/licenses/D-SDA_DataLicenseTerms.pdf
 

Restrictions on access and use

 

Responsible organization (s)

Contact for the resource
Organisation name
German Aerospace Center (DLR)
Email
geoservice@dlr.de
 

Responsible organization (s)

Contact for the resource
Organisation name
German Aerospace Center (DLR)
Email
geoservice@dlr.de
 

Metadata information

Contact for the metadata
Organisation name
German Aerospace Center (DLR)
Email
geoservice@dlr.de
Date stamp
2024-09-27T12:48:48
Metadata language
English
 
 

SDS

Conformance class 1: invocable

Access Point URL
Endpoint URL
Technical specification
 

Conformance class 2: interoperable

Coordinate reference system
 
Quality of Service
 
Access constraints
Limitation
 
Use constraints
Limitation
 
Responsible custodian
Contact for the resource
 
 

Conformance class 3: harmonized

 
 

  Overviews

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802569b8-fb56-4d78-a2e8-3e4549ff475b   Access to the portal Read here the full details and access to the data.

  Associated resources

Not available


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