Optical data#

Implemented optical constellation#

The product resolution is the one given in Data Access Portfolio (2014-2022, section 6.2). The Data Access Portfolio Document presents the offer of the datasets and data access services that are made available to the Copernicus Users in response to their Earth Observation data requirements.

Constellations

Class

Product Types

Use archive

Default Resolution

Sentinel-2

S2Product

L1C & L2A & L2Ap

10m

Sentinel-2 Theia

S2TheiaProduct

L2A

10m

Sentinel-3 SLSTR

S3Product

RBT

300m

Sentinel-3 OLCI

S3Product

EFR

500m

Landsat 9 OLI-TIRS

L9Product

Level 1

30m

Landsat 8 OLI-TIRS

L8Product

Level 1

COL1*: ❌, COL2: ✅

30m

Landsat 7 ETM

productsL7Product

Level 1

COL1*: ❌, COL2: ✅

30m

Landsat 5 TM

L5Product

Level 1

COL1*: ❌, COL2: ✅

30m

Landsat 4 TM

L4Product

Level 1

COL1*: ❌, COL2: ✅

30m

Landsat 5 MSS

L5Product

Level 1

COL1*: ❌, COL2: ✅

60m

Landsat 4 MSS

L4Product

Level 1

COL1*: ❌, COL2: ✅

60m

Landsat 3 MSS

L3Product

Level 1

COL1*: ❌, COL2: ✅

60m

Landsat 2 MSS

L2Product

Level 1

COL1*: ❌, COL2: ✅

60m

Landsat 1 MSS

L1Product

Level 1

COL1*: ❌, COL2: ✅

60m

PlanetScope

PlaProduct

L3A & L3B

3m

SkySat

SkySat

(Collect Product) ortho_*

0.5m

Pleiades-Neo

PneoProduct

ORT

0.3 (PAN), 1.2m (MS)

Pleiades

PldProduct

SEN, PRJ, ORT & MOS

0.5 (PAN), 2m (MS)

Vision-1

Vis1Product

PRJ & ORTP

0.9 (PAN), 3.5m (MS)

SPOT 7

Spot7Product

SEN, PRJ, ORT & MOS

1.5 (PAN), 6m (MS)

SPOT 6

Spot6Product

SEN, PRJ, ORT & MOS

1.5 (PAN), 6m (MS)

Maxar**

MaxarProduct

Standard & Ortho

0.5 (PAN), 2m (MS)

* Archived Landsat Collection-1 are not managed because of the tar.gz format, which is too slow to process. It is better to work on the extracted product. Landsat-9 Collection-1 products don’t exist.

** Maxar satellites: Worldview 2, 3, 4 and GeoEye-1 (but WorldView-1, QuickBird should work, however they don’t have been tested). The resolution can vary around the one given here.

Warning

Satellites products that cannot be used as archived have to be extracted before use.

The goal of EOReader is to implement every constellation that can be used in the Copernicus Emergency Management Service. The constellations that can be used during CEMS activations are (as of 09/2021):
cems_constellations

Optical bands#

The following bands are available in EOReader, but may not be available for all constellations.

Warning

EOReader loads bands in UTM. VHR bands can be orthorectified but EOReader needs a DEM for that. Be sure to position the environment variable EOREADER_DEM_PATH to the DEM you want.

Satellite bands#

Note

Optical bands are always loaded in reflectance, except for brilliance temperature bands that are left as is.

However, the user can ask for bands “as is” by using the TO_REFLECTANCE keyword with the load and stack functions. It will give the bands in the provider format (either DN, radiance or reflactance in uint16…). See the optical notebook to see how to implement it.

These bands will be cleaned according to the user’s needs. By default, only the pixels outside the detectors footprints are set to nodata. Methods to clean optical bands are best described in the notebook about the optical cleaning methods.

Band names#

These bands are mainly based on Sentinel-2 bands. The names are the ones from Sentinel-2, even if sometimes it can be confusing (especially for Coastal Aerosol and SWIR Cirrus bands).

Some additions to the Sentinel-2 bands have been made (YELLOW, PAN…):

  • CA: Coastal Aerosol

  • BLUE

  • GREEN

  • YELLOW

  • RED

  • VRE_1: Vegetation Red Edge 1

  • VRE_2: Vegetation Red Edge 2

  • VRE_3: Vegetation Red Edge 3

  • NIR: Near Infrared

  • NARROW_NIR: Narrow Near Infrared (band 8A for Sentinel-2, same as NIR for other sensors)

  • WV: Water vapour

  • SWIR_CIRRUS: Cirrus band

  • SWIR_1: Short Wave Infrared 1

  • SWIR_2 Short Wave Infrared 2

  • PAN: Panchromatic

  • TIR_1: Thermal Infrared 1

  • TIR_2: Thermal Infrared 2

Note

Note that bands that are not mapped can still be used (i.e. for Sentinel-3 OLCI and SLSTR). They will be called by their true name (i.e. F1 or Oa05). However, the mapped band will have to be called with their mapped name, i.e. BLUE rather than Oa04 for Sentinel-3 OLCI. But the bands that are not present in the alias file won’t be recognized.

Optical band mapping between constellations#

Bands (names)

Coastal aerosol

Blue

Green I

Green

Yellow

Red

Vegetation red edge

Vegetation red edge

Vegetation red edge

NIR

Narrow NIR

Water vapor

SWIR – Cirrus

SWIR

SWIR

Panchromatic

Thermal IR

Thermal IR

Bands (alias)

CA

BLUE

GREENI

GREEN

YELLOW

RED

VRE_1

VRE_2

VRE_3

NIR

NARROW_NIR

WV

SWIR_CIRRUS

SWIR_1

SWIR_2

PAN

TIR_1

TIR_2

Sentinel-2

1 (60m)

2 (10m)

3 (10m)

4 (10m)

5 (20m)

6 (20m)

7 (20m)

8 (10m)

8A (20m)

9 (60m)

10 (60m)

11 (20m)

12 (20m)

Sentinel-2 Theia

Not available

2 (10m)

3 (10m)

4 (10m)

5 (20m)

6 (20m)

7 (20m)

8A (10m)

8 (20m)

Not available

10 (60m)

11 (20m)

12 (20m)

Sentinel-3 OLCI*

3 (300m)

4 (300m)

5 (300m)

6 (300m)

7 (300m)

8 (300m)

11 (300m)

12 (300m)

16 (300m)

17 (300m)

17 (300m)

20 (300m)

Sentinel-3 SLSTR*

1 (500m)

2 (500m)

3 (500m)

3 (500m)

4 (500m)

5 (500m)

6 (500m)

8 (1km)

9 (1km)

Landsat OLI-TIRS (8-9)

1 (30m)

2 (30m)

3 (30m)

4 (30m)

5 (30m)

5 (30m)

9 (30m)

6 (30m)

7 (30m)

8 (15m)

10 (100m)

11 (100m)

Landsat ETM (7)

1 (30m)

2 (30m)

3 (30m)

4 (30m)

4 (30m)

5 (30m)

7 (30m)

8 (15m)

6 (60m)

6 (60m)

Landsat TM (5-4)

1 (30m)

2 (30m)

3 (30m)

4(30m)

4 (30m)

5 (30m)

7 (30m)

6 (120m)

6 (120m)

Landsat MSS (5-4)

1 (60m)

2 (60m)

3 (60m)

3 (60m)

3 (60m)

4 (60m)

4 (60m)

Landsat MSS (1-3)

4 (60m)

5 (60m)

6 (60m)

6 (60m)

6 (60m)

7 (60m)

7 (60m)

8 (240m)
only for L3

8 (240m)
only for L3

PlanetScope (4 bands)

1 (3m)

2 (3m)

3 (3m)

4 (3m)

4 (3m)

PlanetScope (5 bands)

1 (3m)

2 (3m)

3 (3m)

4 (3m)

5 (3m)

5 (3m)

PlanetScope (8 bands)

1 (3m)

2 (3m)

3 (3m)

4 (3m)

5 (3m)

6 (3m)

7 (3m)

8 (3m)

8 (3m)

SkySat

1 (0.5m)

2 (0.5m)

3 (0.5m)

4 (0.5m)

4 (0.5m)

Pleiades

3 (0.5/2m)

2 (0.5/2m)

1 (0.5/2m)

4 (0.5/2m)

4 (0.5/2m)

1 (0.5m)

Pleiades-Neo

5 (0.3/1.2m)

3 (0.3/1.2m)

2 (0.3/1.2m)

1 (0.3/1.2m)

6 (0.3/1.2m)

6 (0.3/1.2m)

6 (0.3/1.2m)

4 (0.3/1.2m)

4 (0.3/1.2m)

1 (0.5m)

SPOT 6-7

3 (1.5/6m)

2 (1.5/6m)

1 (1.5/6m)

4 (1.5/6m)

4 (1.5/6m)

1 (0.5m)

Vision-1

1 (0.9/3.5m)

2 (0.9/3.5m)

3 (0.9/3.5m)

4 (0.9/3.5m)

4 (0.9/3.5m)

1 (0.5m)

WorldView-1

1 (0.5m)

WorldView-4, GeoEye-1, QuickBird

1 (0.5m/2m)

2 (0.5m/2m)

3 (0.5m/2m)

4 (0.5m/2m)

4 (0.5m/2m)

1 (0.5m)

WorldView-2/3

1 (0.5m/2m)

2 (0.5m/2m)

3 (0.5m/2m)

4 (0.5m/2m)

5 (0.5m/2m)

6 (0.5m/2m)

6 (0.5m/2m)

6 (0.5m/2m)

7 (0.5m/2m)

7 (0.5m/2m)

8 (0.5m/2m)

1 (0.5m)

* Not all bands of these constellations are mapped in EOReader. However, they can still be used by using directly their name (i.e. F1 or Oa05)