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Sentinel-1 L1 GRD (GeoTIFF)

Provides Sentinel-1 L1 GRD imagery in GeoTIFF format.


Introduction

This block provides medium-resolution Sentinel-1 GRD images. These images are acquired by the twin constellation Sentinel-1A and Sentinel-1B every 6 days anywhere on the globe. The datasets are available starting with 2014.

Technical Information

Compatible blocks

Compatible blocks
Flood Mapping using Sentinel-1 SAR

Geographic coverage

The geographic coverage is global.

Dataset Description

Sentinel-1 GRD images are level-1 products that have been detected, multi-looked and projected to ground range using the Earth ellipsoid model WGS84.

Dataset Information

SpecificationsDescription
Pixel Spacing10x10 m (HR SM)
10x10 m (HR IW)
25x25 m (HR EW)
Spatial Resolution23x23 m (HR SM)
20x22 m (HR IW)
50x50 m (HR EW)
Image TypeRadar
Acquisition ModeStripmap (SM)
Interferometric Wide swath (IW)
Extra-Wide swath (EW)
Orbit DirectionAscending
Descending
Spectral BandC band (central frequency 5.404 GHz)
PolarisationsHH
HV
VV
VH
Geometric Processing LevelProjected
Radiometric Processing LevelLevel-1 Ground Range Detected
Revisit FrequencyEvery 6 days (for Constellation)
Data Availability2014-present
Incidence Angle18.3° - 46.8° (SM)
29.1° - 46.0° (IW)
18.9° - 47.0° (EW)
File FormatGeoTIFF
Bit Depth8 bits per pixel
Coordinate SystemEPSG 3857
Can be reused in an UP42 workflowYes

Restrictions

  1. Data retrieval: The block retrieves images as geo-referenced map tiles overlapping the AOI (WMTS).
  2. Data availability: The rolling archive comprises 9 months. A more extensive archive is available upon request.

How it works

Supported JSON parametersDefault valueMinMaxExamples
idsnulln.a.n.a."ids": ["S1A_IW_GRDH_1SDV_20211107T165433_20211107T165458_040468_04CC59_E78F"]
time"2018-01-01T00:00:00+00:00/2021-12-31T23:59:59+00:00"01.04.2014present"time": "2015-04-01T00:00:00+00:00/2017-04-30T23:59:59+00:00"
limit11500"limit": 80
time_seriesnull01.04.2014present"time_series":["2019-03-27T00:00:00+00:00/2019-04-02T00:00:00+00:00", "2017-09-30T00:00:00+00:00/2017-10-05T00:00:00+00:00", "2016-09-12T00:00:00+00:00/2016-09-20T00:00:00+00:00"]
orbit_directionnulln.a.n.a."orbit_direction": DESCENDING
acquisition_modenulln.a.n.a."acquisition_mode": "IW"
bbox/contains/intersectsnulln.a.n.a.Please check the examples from the JSON parameters.

Examples

Example based on a workflow created with the data block Sentinel-1 L1 GRD (Geotiff):

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Capabilities

Output

raster
up42_standard
bands
{
  "or": [
    [
      "HH",
      "HV",
      "alpha"
    ],
    [
      "VV",
      "VH",
      "alpha"
    ],
    [
      "HH",
      "alpha"
    ],
    [
      "VV",
      "alpha"
    ]
  ]
}
dtypeuint8
formatGTiff
sensorSentinel1GRD
resolution10
processing_levell1
To know more please check the block capabilities specifications.

For more information, please refer to the marketplace.