Sentinel-1 SLC dataset for South and Southeast Asia, Taiwan, Korea and Japan

disaster response earth observation environmental geospatial satellite imagery sustainability


The S1 Single Look Complex (SLC) dataset contains Synthetic Aperture Radar (SAR) data in the C-Band wavelength. The SAR sensors are installed on a two-satellite (Sentinel-1A and Sentinel-1B) constellation orbiting the Earth with a combined revisit time of six days, operated by the European Space Agency. The S1 SLC data are a Level-1 product that collects radar amplitude and phase information in all-weather, day or night conditions, which is ideal for studying natural hazards and emergency response, land applications, oil spill monitoring, sea-ice conditions, and associated climate change effects.

Update Frequency

S1 SLC data for the region of interest will be updated regularly, as it becomes available on the Alaska Satellite Facility endpoint.


The data usage will inherit and fully comply with the free and open data policy from ESA’s Sentinel Data Policy.


Managed By

Earth Observatory of Singapore, Nanyang Technological University

See all datasets managed by Earth Observatory of Singapore, Nanyang Technological University.


For any enquires regarding data delivery, please email and

Usage Examples


Resources on AWS

  • Description
    Public access to Sentinel-1 SLC IW scenes over South and Southeast Asia, Taiwan and Japan
    Resource type
    S3 Bucket
    Amazon Resource Name (ARN)
    AWS Region
    AWS CLI Access (No AWS account required)
    aws s3 ls s3://sentinel1-slc-seasia-pds/ --no-sign-request

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