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Corlett,
G.K,
I.J. Barton,
C.J. Donlon, M.C. Edwards,
S.A. Good,
L.A. Horrocks,
D.T. Llewellyn-Jones,
C.J. Merchant,
P.J. Minnett,
T.J. Nightingale,
E.J. Noyes,
A.G. O’Carroll,
J.J. Remedios,
I.S. Robinson,
R.W. Saunders,
J.G. Watts
Advances in Space Research 03/2006; 37(4):764-769. · 1.18 Impact Factor
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M.C. Edwards,
G.K. Corlett,
D. Llewellyn-Jones,
I.J. Barton,
L.A. Horrocks,
J. Watts,
P. Minnett,
C. Donlon,
I. Robinson,
T. Nightingale,
A. Birks,
C. Mutlow
Geoscience and Remote Sensing Symposium, 2003. IGARSS '03. Proceedings. 2003 IEEE International; 08/2003
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Geoscience and Remote Sensing Symposium, 2003. IGARSS '03. Proceedings. 2003 IEEE International; 08/2003
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ABSTRACT: The European Space Agency's (ESA) environmental research satellite, Envisat, was launched on 1<sup>st</sup> March 2002. Carrying a suit of sensors, it offers opportunities for a broad range of scientific research activities and applications. One of the instruments on board Envisat is the Advanced Along Track Scanning Radiometer, AATSR. Funded primarily by the UK Department for Environment, Food and Rural Affairs (DEFRA) in support of their programme of climate monitoring and prediction, AATSR is designed to provide precise, accurate measurements of global sea surface temperature (better than 0.3K ± 1sigma), required for climate research and global climate change detection. It continues the work of ATSR and ATSR-2, and will lead to a 15+ year data record. This paper introduces the AATSR validation programme, designed to assess instrument performance and accuracy. Activities include algorithm verification, and the comparison of SST measurements from AATSR with those collected from buoys, precision radiometers, and modelled SST analysis fields. Data will be collected by scientists worldwide, over a range of geographic locations, sites and seasons. Validation results will be explicitly fed back into the AATSR operations programme, thus contributing to the successful commissioning of the instrument in the six-month period after launch.
Geoscience and Remote Sensing Symposium, 2002. IGARSS '02. 2002 IEEE International; 02/2002
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ABSTRACT: The Advanced Along-Track Scanning Radiometer (AATSR) onboard ESA's
Envisat spacecraft is designed to meet the challenging task of
monitoring and detecting climate change. It builds on the success of its
predecessor instruments on the ERS-1 and ERS-2 satellites, and will lead
to a 15+ year record of precise and accurate global Sea-Surface
Temperature (SST) measurements, thereby making a valuable contribution
to the long-term climate record. With its high-accuracy, high-quality
imagery and channels in the visible, near-infrared and thermal
wavelengths, AATSR data will support many applications in addition to
oceanographic and climate research, including a wide range of
land-surface, cryosphere and atmospheric studies.
ESA bulletin. Bulletin ASE. European Space Agency 01/2001; 105:11-21. · 1.16 Impact Factor
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G K Corlett,
I J Barton,
C J Donlon, M C Edwards,
S A Good,
L A Horrocks,
D T Llewellyn-Jones,
C J Merchant,
P J Minnett,
T J Nightingale,
E J Noyes,
A G O 'carroll,
J J Remedios,
I S Robinson,
R W Saunders,
J G Watts
[show abstract]
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ABSTRACT: The Advanced Along-Track Scanning Radiometer (AATSR) was launched on Envisat in March 2002. The AATSR instrument is designed to retrieve precise and accurate global Sea Surface Temperature (SST) that, combined with the large data set collected from its predecessors, ATSR and ATSR-2, will provide a long term record of SST data that is greater than 15 years. This record can be used for independent monitoring and detection of climate change. The AATSR validation programme has successfully completed its initial phase. The programme involves validation of the AATSR derived SST values using in situ radiometers, in situ buoys and global SST fields from other data sets. The results of the initial programme presented here will demonstrate that the AATSR instrument is currently close to meeting its scientific objectives of determining global SST to an accuracy of 0.3 K (one sigma). For night time data, the analysis gives a warm bias of between +0.04 K (0.28 K) for buoys to +0.06 K (0.20 K) for radiometers, with slightly higher errors observed for day time data, showing warm biases of between +0.02 (0.39 K) for buoys to +0.11 K (0.33 K) for radiometers. They show that the ATSR series of instruments continues to be the world leader in delivering accurate space-based observations of SST, which is a key climate parameter.
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ABSTRACT: Establishing confidence in the accuracy of AATSR-derived skin sea-surface temperatures (SSTs) requires extensive validation of the algorithms used in their derivation. This is best achieved by comparison with independent measurements of the skin SST. An approach is described that uses an accurately calibrated Fourier-Transform Infrared spectroradiometer, the Marine-Atmospheric Emitted Radiance Interferometer (M-AERI), which is used at sea on a variety of ships. Past experience in the validation of AVHRR and MODIS is presented, and the role of such validation approaches in the context AATSR is discussed.
