
Overview
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.
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This is a publicly available data set. No subscription is required.
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Delivery details
AWS Data Exchange (ADX)
AWS Data Exchange is a service that helps AWS easily share and manage data entitlements from other organizations at scale.
Open data resources
Available with or without an AWS account.
- How to use
- To access these resources, reference the Amazon Resource Name (ARN) using the AWS Command Line Interface (CLI). Learn more
- 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/
- 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/
- 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/
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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 .
License
Digital Earth Pacific Data is available under the Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/
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