Advanced Visible and Near InfraRed Radiometer type 2 (AVNIR 2) UK data
Dataset
Update Frequency: Not Planned
Status: Completed
Online Status: ONLINE
Publication State: Published
Publication Date: 2014-07-29
Download Stats: last 12 months
 
Abstract

The Advanced Visible and Near InfraRed 4-band Radiometer type-2 (AVNIR-2) is a visible and near infrared 4-band radiometer offering 10m spatial resolution optical imagery that is often used for land and coastal earth observation applications. AVNIR-2 is on board the Japanese earth observation Advanced Land Observing Satellite (ALOS) and was developed by the Japanese Aerospace Exploration Agency (JAXA). The data were acquired by the Landmap project from ESA, and are available for large areas of the Republic of Ireland and small areas of Scotland and England, for 2007 to 2008. 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.

Citable as:  Landmap; European Space Agency (2014): Advanced Visible and Near InfraRed Radiometer type 2 (AVNIR 2) UK data. NERC Earth Observation Data Centre, date of citation. http://catalogue.ceda.ac.uk/uuid/bbdbb4e5ef063592ad8f3288f8441569
Keywords:  Not defined
In support of:
Previous Info:
No news update for this record
Previously used record identifiers:
http://badc.nerc.ac.uk/view/neodc.nerc.ac.uk__ATOM__ACTIVITY_6a859e1c-171c-11e4-b43f-00163e251233
Access rules:
Restricted data: please submit an application using the REQUEST ACCESS link for access.
Use of these data is covered by the following licence: http://licences.ceda.ac.uk/image/data_access_condition/landmap.pdf. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Abbreviation:
Not defined
Data lineage:

Data collected and prepared by the Landmap team before a copy of the data were obtained by NEODC directly from Landmap.

File Format:
Data availability and file format

The data are archived in the directory structure of region/year/data type/data for ease of use. Full Colour Composition (FCC), True Colour Composition (TCC) and Full Composite (FC) data are available as GeoTiff files which can be opened by most Geographic Information Systems (GIS) and Image Processors (IP) such as the freely available Basic ERS & Envisat (A)ATSR and Meris Toolbox (BEAM) or Erdas ER viewer. 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. FCC data comprises of bands 4, 3 and 2, TCC of 3, 2 and 1 and FC of all bands. Metadata, in the form of aux, rrd and tfw files, are contained in the same folders as the data. The tfw files are GeoTiff World Files which are used to geo-reference images to an appropriate projection scheme.

More Information (under review)

Introduction

The Advanced Visible and Near InfraRed 4-band Radiometer type-2 (AVNIR-2) is a visible and near infrared 4-band radiometer offering 10m spatial resolution optical imagery that is often used for land and coastal earth observation applications. AVNIR-2 is on board the Japanese earth observation Advanced Land Observing Satellite (ALOS) and was developed by the Japanese Aerospace Exploration Agency (JAXA). The satellite was launched in 2006 and was active for 5 years. It has since lost power, but remains in orbit as of July 2014. Data is available for large areas of the Republic of Ireland and small areas of Scotland and England, for 2007 to 2008. The data were acquired by the Landmap project from ESA. 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.The satellite was launched in 2006 and was active for 5 years. It has since lost power, but remains in orbit as of July 2014. Data is available for large areas of the Republic of Ireland and small areas of Scotland and England, for 2007 to 2008.

The 4 bands are:

  • Band 1 (blue): 0.43 to 0.50µm
  • Band 2 (green): 0.52 to 0.60µm
  • Band 3 (red): 0.61 to 0.69µm
  • Band 4 (near infrared): 0.76 to 0.89µm

Full Colour Composition (FCC), True Colour Composition (TCC) and Full Composite (FC) data are available. FCC data comprises of bands 4, 3 and 2, TCC of 3, 2 and 1 and FC of all bands. For each product there is a GeoTiff file (.tiff) and a GeoTiff World File (.tfw) provided with each image. The GeoTiff image files contain the AVNIR-2 data and the geo-reference information related to the Tiff image. The GeoTiff World Files are data files that can be used to geo-reference images to an appropriate projection scheme.

The images provide the basis for land coverage and land-use classification maps for monitoring regional environments. In addition, the instrument has a cross track pointing capability useful for quick response applications including disaster monitoring.


Restricted Data Access

Data are available to UK academics and students. To apply for access, please

  1. Register as a NEODC user. If you already are a NEODC registered user, skip this step. If you have forgotten your NEODC user ID and/or password, please contact the NEODC helpdesk at neodc@rl.ac.uk.
  2. Apply for access to the Landmap data. Application involves the agreement with the Landmap terms of use.

Data availability and file format

The data are archived in the directory structure of region/year/data type/data for ease of use. Full Colour Composition (FCC), True Colour Composition (TCC) and Full Composite (FC) data are available as GeoTiff files which can be opened by most Geographic Information Systems (GIS) and Image Processors (IP) such as the freely available Basic ERS & Envisat (A)ATSR and Meris Toolbox (BEAM) or Erdas ER viewer. 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. FCC data comprises of bands 4, 3 and 2, TCC of 3, 2 and 1 and FC of all bands. Metadata, in the form of aux, rrd and tfw files, are contained in the same folders as the data. The tfw files are GeoTiff World Files which are used to geo-reference images to an appropriate projection scheme.


Software

Basic ERS & Envisat (A) ATSR and Meris Toolbox (BEAM): BEAM is an open-source toolbox and development platform for viewing, analysing and processing of remote sensing raster data. Originally developed to facilitate the utilisation of image data from Envisat's optical instruments, BEAM now supports a growing number of other raster data formats such as GeoTIFF and NetCDF as well as data formats of other Earth Observation (EO) sensors such as Moderate Resolution Imaging Spectroradiometer (MODIS), Advanced Very High Resolution Radiometer (AVHRR), AVNIR, Polarised Radiation Imaging and Spectroscopy Mission (PRISM) and Compact High Resolution Imaging Spectrometer (CHRIS). Various data and algorithms are supported by dedicated extension plug-ins.

Erdas ER viewer, available free of charge, can be used to open raster image formats such as TIFF, GeoTiff, IMG, ECW, ERS, ALG, DAT and many more, and is capable of handling large file sizes.

Links to further information

More information is available from the following websites:

  • The Landmap project AVNIR-2 website - this site may be offline after 1st August 2014 due to a withdrawal of JISC (Joint Information Systems Committee) funding, see below for an archived version of the site
  • An archived version of the Landmap project AVNIR 2 website, hosted by the Internet Archive project
  • The AVNIR-2 page at ESA
  • Japan Aerospace Exploration Agency (JAXA) details about ALOS
  • Earth Observation Research Center (EORC) details about ALOS and AVNIR-2

ALOS Orbital Parameters

Operational Period 24/01/2006 until 12/05/2011
Orbit type Sun-synchronous, sub-recurrent
Oribtal period 2 days
Repeat period 46 days
Altitude 691.65km
Inclination 98.16 degrees

Citation
Landmap; European Space Agency. Advanced Visible and Near InfraRed Radiometer type 2 (AVNIR 2) UK data, [Internet]. NERC Earth Observation Data Centre, 2014, Date of citation. Available from http://catalogue.ceda.ac.uk/uuid/bbdbb4e5ef063592ad8f3288f8441569

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.

Who to contact

If you have queries about these pages or about obtaining the AVNIR-2 data from the NEODC then you should contact the NEODC Support team. Your query should be answered within one working day. When follow-up work is required, the NEODC support will carry out the work as quickly and efficiently as possible, and in any case, the user will be kept informed of progress.

Update Frequency
notPlanned

Who to contact

If you have queries about these pages or about obtaining the AVNIR-2 data from the NEODC then you should contact the NEODC Support team. Your query should be answered within one working day. When follow-up work is required, the NEODC support will carry out the work as quickly and efficiently as possible, and in any case, the user will be kept informed of progress.

Process overview
This dataset was generated by a combination of instruments deployed on platforms and computations as detailed below.

Output Description
None

Computation Element: 1

Title
DETAILS NEEDED - COMPUTATION CREATED FOR SATELLITE COMPOSITE. deployed on Advanced Land Observing Satellite (ALOS)
Abstract
This computation involved: DETAILS NEEDED - COMPUTATION CREATED FOR SATELLITE COMPOSITE. deployed on Advanced Land Observing Satellite (ALOS).
Input Description
None
Output Description
None
Software Reference
None
There are no comments about this dataset
Temporal Range
2006-01-24T00:00:00
2011-05-12T00:00:00
Geographic Extent

  59.5000°  
-10.7000°     1.3000°
  50.5000°  
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