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CalVal Instrument Calibration Information - ERS-2 ATSR-2

Instrument Calibration Information - ERS-2_ATSR-2

Description

The ATSR-2 instrument on-board the ERS-2 satellite is a low-resolution conical imaging spectrometer operating in the visible, near-infrared, mid-infrared and thermal spectrum. Data are acquired through seven bands with a 1 kilometre spatial resolution. The (A)ATSR instruments are unique in their use of along track scanning to provide two views of the surface and thus improve atmospheric correction. The surface is first viewed along the direction of the orbit track, at an angle of 55°, as the spacecraft flies towards the scene. Then, 150 seconds later, or when the satellite has moved approximately 1000 km forward along the ground track, a second observation is made of the same scene at the sub-satellite point. The ATSR-2 and Advanced ATSR (AATSR) instruments are developments from the original experimental ATSR-1 instrument which, in addition to the ATSR-1’s infrared channels, carry extra visible channels at 0.55, 0.67 and 0.87 micro-metres for vegetation remote sensing. The evolution of ATSR-2 was constrained by the requirement to maintain the ATSR-1 precision measurement of global SST.

Identification

System UID: urn:x-esa:object:instrument:ESA:ERS-2:ATSR-2:v01

Short Name: ATSR-2

Long Name: Along-Track Scanning Radiometer (second generation)

Classification

Instrument Type: Imaging Multispectral Radiometer

Acquisition Method: Conical

Geometric Characteristics

Swath Width at Nadir: 512 km

Measurement Characteristics

Number of Bands: 7

Additional Documentation

Type: urn:x-esa:def:dictionary:ESA:documentTypes:v01#databook

Description: ESA Website describing the ERS missions.

Link: http://earth.esa.int/ers/

Type: urn:x-esa:def:dictionary:ESA:documentTypes:v01#databook

Description: ESA Website giving the "AATSR Product Handbook"

Link: http://envisat.esa.int/handbooks/aatsr/

Type: urn:x-esa:def:dictionary:ESA:documentTypes:v01#databook

Description: Site of the "ATSR Project" - Rutherford Appleton Laboratory of the University of Leicester.

Link: http://www.atsr.rl.ac.uk/

Type: urn:x-esa:def:dictionary:ESA:documentTypes:v01#databook

Description: "ATSR-1/2 User Guide"

Link: http://earth.esrin.esa.it/pub/ATSR2/atsr_user_guide_rev_3.pdf/

Component: IRR_Band1

Component: IRR_Band2

Component: IRR_Band3

Component: IRR_Band4

Component: IRR_Band5

Component: IRR_Band6

Component: IRR_Band7

CalVal Access to satellite data

CalVal In-Situ Reference

In-Situ / Reference data

Local (In Situ Data stored in the CalValPortal)

Additional Links:

AERONET
METOZ
GlobCOLOUR
MERMAID
NOAA NDBC
Medspiration
Coriolis
TEMS