PAZ Full Archive and New Tasking

How to Access Data

The collection is open for research and application development, prototype and test projects to worldwide users but Hisdesat can introduce limitations due to security regulations.

Data are available for on demand ordering upon submission of a Project Proposal subject to evaluation and acceptance by ESA and data owner.

The process takes up to two weeks and there are no deadlines for submitting a proposal.

For further information about the EO Sign In Service you can visit TellUs

Should you need support please contact EOHelp

ESA will support as many high-quality and innovative projects as possible within the quota limit available, therefore only a limited amount of products can be allowed to each project.

Availability and restrictions to the use of the data are described in the ESA Third Party Missions (TPM) T&C document and in the Terms of Applicability document

For archive data, the user is invited to search PAZ products by using the USP (User Service Provider) web portal) in order to verify the availability over the Area of Interest in the Time of Interest. The catalogue is currently not fully available to the public: access permission needs to be requested to Hisdesat.

Description

PAZ Image Products can be acquired in eight image modes with flexible resolutions (from 1 m to 40 m) and scene sizes. Thanks to different polarimetric combinations and processing levels the delivered imagery can be tailored specifically to meet the requirements of the application.

Available modes are:

  • StripMap mode (SM): in single and dual polarisation: The ground swath is illuminated with a continuous train of pulses while the antenna beam is pointed to a fixed angle, both in elevation and in azimuth.
  • ScanSAR mode (SC): in single polarisation: the swath width is increased in respect to the StripMap mode, it is composed of four different sub-swaths, which are obtained by antenna steering in elevation direction
  • Wide ScanSAR mode (WS), in single polarisation: the usage of six sub-swaths allows to obtain a higher swath coverage product
  • Spotlight modes: in single and dual polarisation: Spotlight modes take advantage of the beam steering capability in the azimuth plane to illuminate for a longer time the area of interest: a sensible improvement of the azimuth resolution is achieved at the expense of a shorter scene size. Spotlight mode (SL) is designed to maximise the azimuth scene extension at the expense of the spatial resolution, and High Resolution Spotlight mode (HS) is designed to maximize the spatial resolutions at the expense of the scene extension.
  • Staring Spotlight mode (ST), in single polarisation: The virtual rotation point coincides with the center of the beam: the image length in the flight direction is constrained by the projection on- ground of the azimuth beamwidth and it leads to a target azimuth illumination time increment and to achieve the best azimuth resolution.

There are two main classes of products:

  • Spatially Enhanced products (SE): designed with the target of maximize the spatial resolution in pixels with squared size, so the larger resolution value of azimuth or ground range determines the square pixel size, and the smaller resolution value is adjusted to this size and the corresponding reduction of the bandwidth is used for speckle reduction.
  • Radiometrically Enhanced products (RE): designed with the target of maximize the radiometry, so the range and azimuth resolutions are intentionally decreased to significantly reduce speckle by averaging several looks.

The following geometric projections are offered:

  • Single Look Slant Range Complex (SSC): single look product of the focused radar signal: the pixels are spaced equidistant in azimuth and in slant range. No geocoding is available, no radiometric artifacts included. Product delivered in the DLR-defined binary COSAR format. The SSC product is intended for applications that require the full bandwidth and phase information, e.g. for SAR interferometry and polarimetry.
  • Multi Look Ground Range Detected (MGD): detected multi look product in GeoTiff format with reduced speckle and approximately square resolution cells on ground. The image coordinates are oriented along flight direction and along ground range; the pixel spacing is equidistant in azimuth and in ground range. A simple polynomial slant to ground projection is performed in range using a WGS84 ellipsoid and an average, constant terrain height parameter. No image rotation to a map coordinate system is performed and interpolation artifacts are thus avoided.
  • Geocoded Ellipsoid Corrected (GEC): multi look detected product in GeoTiff format. It is projected and re-sampled to the WGS84 reference ellipsoid assuming one average terrain height. No terrain correction performed. UTM is the standard projection, for polar regions UPS is applied.
  • Enhanced Ellipsoid Corrected (EEC): multi look detected product in GeoTiff format. It is projected and re-sampled to the WGS84 reference ellipsoid. The image distortions caused by varying terrain height are corrected using an external DEM; therefore the pixel localization in these products is highly accurate. UTM is the standard projection, for polar regions UPS is applied.
  StripMap Single StripMap Dual ScanSAR Wide ScanSAR Spotlight Single Spotlight Dual HR Spotlight
Single
HR Spotlight
Dual
Staring Spotlight
 
Mode ID SM-S SM-D SC WS SL-S SL-D HS-S HS-D ST
Polarizations HH, VV, HV, VH HH/VV, HH/HV,
VV/VH
HH, VV, HV, VH HH, VV, HV, VH HH, VV, HV, VH HH/VV, HH/HV, VV/VH HH, VV, HV, VH HH/VV, HH/HV, VV/VH HH, VV, HV, VH
Scene size (Range x Azimuth) [km] 30 x 50 15 x 50 100 x 150 [273-196] x 208 10 x 10 10 x 10 10-6 x 5 (depending on incident angle) 10 x 5 [9-4.6] x [2.7-3.6]
Range Resolution [m]

MGD, GEC, EEC (SE)[Ground range]

2.99 - 3.52
at (45° - 20°)
6 N/A N/A 1.55 - 3.43
at (55° - 20°)
3.09 - 3.5
at (55° - 20°)
1 - 1.76
at (55° - 20°)
2 - 3.5
at (55° - 20°)
0.96 -1.78 at (45°- 20°)
MGD, GEC, EEC (RE)
[Ground range]
6.53 - 7.65
at (45° - 20°)
7.51 - 10.43
at (45° - 20°)
16.79 - 18.19
at (45° - 20°)
35 3.51 - 5.43
at (55° - 20°)
4.98 - 7.63
at (55° - 20°)
2.83 - 3.11
at (55° - 20°)
4 - 6.2
at (55° - 20°)
0.97 - 1.78 at (45°-20°)
SSC[Slant range] 1.1 (150 MHz bandwidth) 1.7 (100 MHz bandwidth) 1.18 1.17 - 3.4 (depending on range bandwidth) 1.75 - 3.18 (depending on range bandwidth) 1.18 1.17 0.6 1.17 0.59
Azimuth Resolution [m] MGD, GEC, EEC (SE) 3.05 6.11 N/A N/A 1.56 - 2.9
at (55° - 20°)
3.53 1 - 1.49
at (55 °- 20°)
2.38 - 2.93
at (55° - 20°)
0.38 - 0.7 at (45°-20°)
MGD, GEC, EEC (RE) 6.53 - 7.60
at (45° - 20°)
7.52 - 10.4
at (45° - 20°)
17.66 - 18.18
at (45° - 20°)
39 3.51 - 5.4
at (55° - 20°)
4.99 - 7.64
at (55° - 20°)
2.83 - 3.13
at (55° - 20°)
4 - 6.25
at (55° - 20°)
0.97 - 1.42 at (45°-20°)
SSC 3.01 6.04 18.5 38.27 1.46 3.1 1.05 2.16 0.22

Details

DATA SET SPECIFICATIONS

Spatial coverage: 
90 N, -90 S, -180 W, 180 E
Temporal coverage:
2018-09-06 - present
Date of launch:
2018-02-22
Operators:
Hisdesat
Mission status:
onGoing
Orbit height:
514 km
Orbit type:
Sun-synchronous
Swath width:
10x10 km Spotlight, 10X5 km HR Spotlight, 100x150 km ScanSAR, 15/30 x50 km StripMap
Resolution:
Very High Resolution - VHR (0 - 5m) High Resolution - HR (5 - 20 m)
Wavelengths:
X-Band (2.8 - 5.2 cm)

PROCESSING LEVEL

level 1b

APPLICABLE TERMS & CONDITIONS

Specific restrictions to the use of data may apply for TPMs according to the terms of applicability valid for each mission. Utilisation of this data is subject to ESA's Earth Observation Terms and Conditions

READ T&C

RESOURCES

PAZ Image Product Guide
Technical Note
PAZ USP Catalogue
Catalogue
PAZ Terms of Applicability
Access Guide
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