ATSR-2 Ungridded Brightness Temperature (UBT) Data

Data from the Along Track Scanning Radiometer (ATSR) instrument on the ERS-2 platform operational between 1995 and 2011. The ATSR is an imaging radiometer providing images of the Earth from space on the ERS2- platform. The ERS (Earth Resources Satellite) programme was funded by and operated by ESA and was the first main ESA EO data campaign. ATSR-1 was placed on the ERS-1 platform and ATSR-2 was on the ERS-2 platform. The ATSR-1 and 2 instruments were followed by the Advanced Along Track Scanning Radiometer (AATSR) on the ENVISAT platform in 2002.

The ATSR-2 instrument has been designed for exceptional sensitivity and stability of calibration, which are achieved through the incorporation of several innovative features in the instrument design. This design has, among other things, enabled the accurate measurement of sea surface temperature to an accuracy of +/- 0.3K. The design of the ATSR instrument incorporates a dual view made possible by the rotating scan mirror. There is a nadir view and then a subsequent along track view. These provide 2 images per scan and allow improved estimate of atmospheric attenuation. This coupled with the inclusion of consistent calibration using on-board black bodies allows for the collection of extremely radiometrically accurate data.

The data are Level1 Ungridded Brightness Temperatures (UBT). The data are in SADIST-2 format and CEDA is the primary archive for this data. The UBT product provides scenes for both nadir and forward views with a swath width of 512km and a ground pixel distance of 1km.

This dataset is superceded by the AATSR Multimission ATSR-2 data set that involved reprocessing this data with improved calibration and cloud masking and is available in a number of reprocessings so consistent with ENVISAT format data.

Date (Publication): 2003-10-03T14:38:10

Date (Creation): 2003-10-03T14:38:10

Citation identifier: https://catalogue.ceda.ac.uk/uuid/a96880386de0431f97ed53baa1667ca1

Citation identifier: NERC Earth Observation Data Centre (NEODC) / a96880386de0431f97ed53baa1667ca1

Point of contact

Organisation name	Electronic mail address	Role
European Space Agency (ESA)	unknown	Author
NERC Earth Observation Data Centre (NEODC)	neodc@rl.ac.uk	Custodian
NERC Earth Observation Data Centre (NEODC)	neodc@rl.ac.uk	Distributor
European Space Agency (ESA)	unknown	Principal investigator
NERC Earth Observation Data Centre (NEODC)	neodc@rl.ac.uk	pointofContact
NERC Earth Observation Data Centre (NEODC)	neodc@rl.ac.uk	Publisher

Maintenance and update frequency: Not planned

Update scope: Dataset

Keywords

Radiometric Calibration
Dual View
Nadir View
Forward View
Brightness Temperature

GEMET - INSPIRE themes, version 1.0

orthoimagery

Access constraints: Other restrictions

Other constraints: Restricted data: please submit an application using the REQUEST ACCESS link for access.

Use constraints: Other restrictions

Other constraints: Under the following licence https://artefacts.ceda.ac.uk/licences/specific_licences/atsrubt.pdf, appropriate use of these data may fall under unclassified use. This message is intended as guidance, always read the full licence. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.

Spatial representation type: Grid

Language: English

Topic category

Imagery base maps earth cover

Begin date: 1995-04-21T00:00:00

End date: 2011-07-04T23:59:59

Unique resource identifier: WGS 84

Distribution format

Name	Version
SADIST-2

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
NERC Earth Observation Data Centre (NEODC)		neodc@rl.ac.uk	Distributor

OnLine resource

Protocol	Linkage	Name
	https://catalogue.ceda.ac.uk/uuid/a96880386de0431f97ed53baa1667ca1	CEDA Data Catalogue Page

OnLine resource

Protocol	Linkage	Name
	http://data.ceda.ac.uk/neodc/atsrubt/atsr2	DOWNLOAD

OnLine resource

Protocol	Linkage	Name
	http://www.atsr.rl.ac.uk/documentation/docs/sadist/sadist/sadist_600_products.pdf	SADIST Data format description

Hierarchy level: Dataset

Conformance result

Title: Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

Date (Publication): 2010-12-08

Statement: Data was producted by the ESA ERS Ground Segment and UBT and GBT (Gridded Brightness Temperature) products delivered to STFC RAL by tape. Data was initially made available to the NEODC (NERC Earth Observation Data Centre) to users authorised by the ESA/NERC Data Quality working group. CEDA maintains this data as the primary archive of ATSR UBT data.

Metadata

File identifier: a96880386de0431f97ed53baa1667ca1 XML

Metadata language: English

Character set: UTF8

Parent identifier: ATSR-1/2 Ungridded Brightness Temperature (UBT) data
939c6aa57f9bcd5340157cb013b036d8

Hierarchy level: Dataset

Date stamp: 2026-03-11T03:27:28

Metadata standard name: UK GEMINI

Metadata standard version: 2.3

Metadata author

Organisation name	Individual name	Electronic mail address	Role
NERC Earth Observation Data Centre (NEODC)		neodc@rl.ac.uk	Point of contact

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