• NERC Data Catalogue Service
  •  
  •  
  •  

ENVISAT Advanced Synthetic Aperture Radar (ASAR) UK imagery

Data from the Advanced Synthetic Aperture Radar (ASAR) on-board ENVISAT are available for the UK from 2002-2009. The raw data for the alternating polarisation, wide swath and image modes were acquired by the Landmap project from ESA and processed to produce 8 and 32-bit greyscale and multi-difference colour composite geotiff images. The Joint Information Systems Committee (JISC) funded Landmap service which ran from 2001 to July 2014 collected and hosted a large amount of earth observation data for the majority of the UK. After removal of JISC funding in 2013, the Landmap service is no longer operational, with the data now held at the NEODC.

When using these data please also add the following copyright statement: © ESA 2004/2005/2006/2007/2008…. Received and Distributed by University of Manchester under licence from the European Space Agency

Simple

Date (Publication)
2014-08-18T08:16:07
Date (Creation)
2014-08-18T08:16:07
Identifier
https://catalogue.ceda.ac.uk/uuid/86a063c7f894cd9eceb6e542888a13ea
Identifier
NERC Earth Observation Data Centre (NEODC) / 86a063c7f894cd9eceb6e542888a13ea
Author
  Landmap - author
Author
  European Space Agency (ESA) - author
Custodian
  NERC Earth Observation Data Centre (NEODC) - custodian
NERC - Earth Observation Data Centre , STFC Rutherford Appleton Laboratory , Harwell Oxford , OX11 0QX , UK
+44(0)1235 446432
Distributor
  NERC Earth Observation Data Centre (NEODC) - distributor
NERC - Earth Observation Data Centre , STFC Rutherford Appleton Laboratory , Harwell Oxford , OX11 0QX , UK
+44(0)1235 446432
pointofContact
  NERC Earth Observation Data Centre (NEODC) - point_of_contact
NERC - Earth Observation Data Centre , STFC Rutherford Appleton Laboratory , Harwell Oxford , OX11 0QX , UK
+44(0)1235 446432
Publisher
  NERC Earth Observation Data Centre (NEODC) - publisher
NERC - Earth Observation Data Centre , STFC Rutherford Appleton Laboratory , Harwell Oxford , OX11 0QX , UK
+44(0)1235 446432
Maintenance and update frequency
notPlanned Not planned
Update scope
dataset Dataset
Keywords
  • Not defined
GEMET - INSPIRE themes, version 1.0
  • orthoimagery
Access constraints
otherRestrictions Other restrictions
Other constraints
Restricted data: please submit an application using the REQUEST ACCESS link for access.
Use constraints
otherRestrictions Other restrictions
Other constraints
Under the following licence https://artefacts.ceda.ac.uk/licences/specific_licences/landmap.pdf, appropriate use of these data may fall under academic and specific 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 Grid
Metadata language
EnglishEnglish
Topic category
  • Imagery base maps earth cover
N
S
E
W
thumbnail


Begin date
2002-01-01T00:00:00
End date
2009-12-31T00:00:00
Unique resource identifier
WGS 84
Distribution format
  • Data availability and file format

    The data are available in geotiff format which can be opened in many earth observation image processing software including open/free software such as Erdas ER viewer and the freely available Basic ERS & Envisat (A)ATSR and Meris Toolbox (BEAM) or NEST (Next ESA SAR Toolbox). Geotiff files are TIFF files which have geographic metadata embedded as tags within the TIFF file. The geographic metadata can then be used to position the image in the correct location and geometry on the screen of a geographic information display. The data are split into the three modes acquired by Landmap (alternating polarisation, wide swath and image modes). The various polarisations can be determined from the filename:

    hh - Horizontal polarisation transmitted, horizontal received.

    vv - Vertical transmitted, vertical received

    hv - Horizontal transmitted, vertical received

    vh - Vertical transmitted, horizontal received

    Specific products include 32 bit _geo GeoTiff, and 8 bit _geo_lia and _geo_ls_mask GeoTiffs. All the geotiff images are provided with GeoTiff World Files (.tfw) which are used to geo-reference images to an appropriate projection scheme.

    ()

Distributor
  NERC Earth Observation Data Centre (NEODC) - Data Center Contact
NERC - Earth Observation Data Centre , STFC Rutherford Appleton Laboratory , Harwell Oxford , OX11 0QX , UK
+44(0)1235 446432
OnLine resource
CEDA Data Catalogue Page

Detail and access information for the resource

OnLine resource
DOWNLOAD

Download Data

OnLine resource
ASAR specifications and details

No further details.

OnLine resource
The ESA ASAR website

No further details.

OnLine resource
Landmap terms of use

No further details.

OnLine resource
ASAR product handbook

No further details.

Hierarchy level
dataset Dataset

Conformance result

Date (Publication)
2010-12-08
Statement
Data collected and prepared by the Landmap team before a copy of the data were obtained by NEODC directly from Landmap.
File identifier
86a063c7f894cd9eceb6e542888a13ea XML
Metadata language
EnglishEnglish
Character set
8-bit variable size UCS Transfer Format, based on ISO/IEC 10646 UTF8
Parent identifier
Landmap: Radar Earth Observation Collection 47edf6f8790da0ebb5080feb810a630e
Hierarchy level
dataset Dataset
Date stamp
2025-11-15T03:02:57
Metadata standard name
UK GEMINI
Metadata standard version
2.3
Point of contact
  NERC Earth Observation Data Centre (NEODC)
NERC - Earth Observation Data Centre , STFC Rutherford Appleton Laboratory , Harwell Oxford , OX11 0QX , UK
+44(0)1235 446432
 
 

Overviews

Spatial extent

N
S
E
W
thumbnail


Keywords

GEMET - INSPIRE themes, version 1.0
orthoimagery

Provided by

logo

Share on social sites

Access to the portal
Read here the full details and access to the data.

Associated resources

Not available


  •  
  •  
  •