Digital Earth Pacific Water Observations from Space (WOfS, Landsat, 30 m)

disaster response earth observation environmental geoscience geospatial surface water water

Description

Water Observations from Space (WOfS) maps the presence of surface water across the Pacific region using Landsat satellite imagery, highlighting where water is usually present and where it is rarely present. The dataset supports flood mapping, drought monitoring, hydrological analysis, and water resource management. It comprises three products:

  • Scene-based Surface Water: per-scene classification of surface water presence, derived from Landsat imagery using water detection algorithms, from 1984 onwards.
  • Annual Summary: annual statistics of wet and clear observation counts and water frequency, capturing interannual variability in water extent.
  • All-Time Summary: the frequency of water presence across all available observations, highlighting persistent and seasonal water bodies.

Update Frequency

Scene-based data is added as new Landsat scenes are acquired; summaries are updated annually

License

Digital Earth Pacific Data is available under the Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/

Documentation

https://digitalearthpacific.org/#/applications

Managed By

Pacific Community (SPC)

See all datasets managed by Pacific Community (SPC).

Contact

dep@spc.int

How to Cite

Digital Earth Pacific Water Observations from Space (WOfS, Landsat, 30 m) was accessed on DATE from https://registry.opendata.aws/dep-wofs.

Usage Examples

Tools & Applications
Publications

Resources on AWS

  • Description
    Water Observations from Space (WOfS) Scene-based Surface Water (Landsat, 30 m)
    Resource type
    S3 Bucket
    Amazon Resource Name (ARN)
    arn:aws:s3:::dep-public-data/dep_ls_wofl
    AWS Region
    us-west-2
    AWS CLI Access (No AWS account required)
    aws s3 ls --no-sign-request s3://dep-public-data/dep_ls_wofl/
    Explore
    STAC V1.0.0 endpoint
  • Description
    Water Observations from Space (WOfS) Annual Summary (Landsat, 30 m)
    Resource type
    S3 Bucket
    Amazon Resource Name (ARN)
    arn:aws:s3:::dep-public-data/dep_ls_wofs_summary_annual
    AWS Region
    us-west-2
    AWS CLI Access (No AWS account required)
    aws s3 ls --no-sign-request s3://dep-public-data/dep_ls_wofs_summary_annual/
    Explore
    STAC V1.0.0 endpoint
  • Description
    Water Observations from Space (WOfS) All-Time Summary (Landsat, 30 m)
    Resource type
    S3 Bucket
    Amazon Resource Name (ARN)
    arn:aws:s3:::dep-public-data/dep_ls_wofs_summary_alltime
    AWS Region
    us-west-2
    AWS CLI Access (No AWS account required)
    aws s3 ls --no-sign-request s3://dep-public-data/dep_ls_wofs_summary_alltime/
    Explore
    STAC V1.0.0 endpoint

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