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Dataset

 
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Near InfraRed (NIR) red-edge data for Northern Ireland

Update Frequency: Not Planned
Status: Completed
Online Status: ONLINE
Publication State: Published
Publication Date: 2014-08-12
Download Stats: last 12 months

Abstract

Near InfraRed red-edge imagery for Northern Ireland from 2009 to 2011 was acquired by the Landmap project from RapidEye. The imagery has a spatial resolution of 6.5metres and contains 5 spectral bands. 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.

Citable as:  Landmap; RapidEye (2014): Near InfraRed (NIR) red-edge data for Northern Ireland. NERC Earth Observation Data Centre, date of citation. http://catalogue.ceda.ac.uk/uuid/35a68ae7f6bcad835e76ad8cdd8b8190
Abbreviation: Not defined
Keywords: Not defined

Details

Previous Info:
No news update for this record
Previously used record identifiers:
http://badc.nerc.ac.uk/view/neodc.nerc.ac.uk__ATOM__ACTIVITY_acbf9854-2226-11e4-abcd-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.
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
Data are available in GeoTiff format. GeoTiff files 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). The following metadata files are provided with their respective images:
  • XML: These files contain information such as latitude/longitude, collection date etc. of the particular image. General information about the product is also available.
  • GeoTiff files with the _browse suffix: These files show the full extent of valid imagery available for the given image tile, regardless of any black-fill. The resolution of these files is comparatively less than the valid imagery - around 48m.
  • GeoTiff files with the _udm suffix: The Unusuable Data Mask (UDM) files are generated by the system during a cloud detection operation applied on each acquired image. The UDM files also show the full extent of valid imagery. For more information about the characteristics of the UDM files see the RapidEye Satellite Imagery Product Specifications guide
  • TXT: These are simple license and readme text files that contain the text of license related to terms and conditions between buyer and the RapidEye, and copyright information respectively.
The data are split into folders for 2009, 2010 and 2011.

More Information (under review)


Introduction

Near InfraRed red-edge imagery for Northern Ireland from 2009 to 2011 was acquired by the Landmap project from RapidEye. The imagery has a spatial resolution of 6.5metres and contains 5 spectral bands:

  • Blue: 440 to 510nm
  • Green: 520 to 590nm
  • Red: 630 to 685nm
  • Red Edge: 690 to 730nm
  • NIR: 760 to 850nm

The data is collected by a constellation of 5 satellites operated by RapidEye. The red portion is one of the areas where chlorophyll strongly absorbs light and the NIR is where the leaf cell structure produces a strong reflection. Therefore, variations in both the chlorophyll content and the leaf structure are often reflected in the Red Edge band.

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.


Restricted Data Access

The NIR red-edge data is available to all 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
Data are available in GeoTiff format. GeoTiff files 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). The following metadata files are provided with their respective images:
  • XML: These files contain information such as latitude/longitude, collection date etc. of the particular image. General information about the product is also available.
  • GeoTiff files with the _browse suffix: These files show the full extent of valid imagery available for the given image tile, regardless of any black-fill. The resolution of these files is comparatively less than the valid imagery - around 48m.
  • GeoTiff files with the _udm suffix: The Unusuable Data Mask (UDM) files are generated by the system during a cloud detection operation applied on each acquired image. The UDM files also show the full extent of valid imagery. For more information about the characteristics of the UDM files see the RapidEye Satellite Imagery Product Specifications guide
  • TXT: These are simple license and readme text files that contain the text of license related to terms and conditions between buyer and the RapidEye, and copyright information respectively.
The data are split into folders for 2009, 2010 and 2011.

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.

Documentation

Links to further information

  • The Landmap project NIR red-edge 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 NIR red-edge site, hosted by the Internet Archive project
  • The Blackbridge RapidEye website

Who to contact

If you have queries about these pages or about obtaining the NIR red-edge 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 team will carry out the work as quickly and efficiently as possible.

Process overview

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

Instrument/Platform pairings

Jena Spaceborne Scanner JSS 56 Deployed on: RapidEye Satellite Constellation

Mobile platform operations

Mobile Platform Operation 1 Mobile Platform Operation for: RapidEye Satellite Constellation

Computation Element: 1

Title DETAILS NEEDED - COMPUTATION CREATED FOR SATELLITE COMPOSITE. deployed on RapidEye Satellite Constellation
Abstract This computation involved: DETAILS NEEDED - COMPUTATION CREATED FOR SATELLITE COMPOSITE. deployed on RapidEye Satellite Constellation. RapidEye operates a constellation of 5 satellites that are used for spectral imaging, particularly the ‘Red Edge’ band (between red and infrared, 690 to 730nm). <div property="cedacat:introduction"> <div class="introduction">Introduction</div> <p><a href="http://blackbridge.com/rapideye/">RapidEye</a> operates a constellation of 5 satellites that are used for spectral imaging, particularly the ‘Red Edge’ band (between red and infrared, 690 to 730nm).</p> <h3>Orbital Parameters</h3> <table border="0"> <tbody> <tr> <th>Number of satellites</th> <td>5</td> </tr> <tr> <th>Launch Date</th> <td>2008-08-29</td> </tr> <tr> <th>Orbit type</th> <td>Sun-synchronous</td> </tr> <tr> <th>Orbital period</th> <td>96.7 minutes</td> </tr> <tr> <th>Equator crossing time</th> <td>11:00am</td> </tr> <tr> <th>Repeat period</th> <td>1 day</td> </tr> <tr> <th>Altitude</th> <td>630km</td> </tr> <tr> <th>Inclination</th> <td>97.8 degrees</td> </tr> <tr> <th>Swath Width</th> <td>77 km</td> </tr> </tbody> </table> </div>
Input Description None
Output Description None
Software Reference None
Output Description None

No variables found.

Coverage
Temporal Range
Start time:
2009-01-01T00:00:00
End time:
2011-12-31T00:00:00
Geographic Extent

 
55.4000°
 
-8.2000°
 
-5.2000°
 
54.0000°