Overview
Aquatic scientists and water resource managers require information on the dynamics of surface water extent. Surface water extent is modulated by weather and climate, stream network hydrology, and geological processes such as isostatic rebound. Land use, ecosystem and services, and water management are also impacted by changes in surface water extent. This dataset contains such surface water extent information for the Mono Lake. This dataset is derived from the Landsat 8 Dynamic Surface Water Extent product from the USGS/NASA Landsat Program.
Dataset Metadata
| Field | Value |
|---|---|
| Format | Parquet |
| License | CDLA-Sharing |
| Domain | Time Series, Computer Vision |
| Number of Records | 459 images comprising 689,838,950 pixels |
| Data Split | 3 layers for each of 153 images |
| Size | 233.5 MB |
| Author | Linsong Chu |
| Origin | Images originally captured by Landsat8 during the USGS/NASA Landsat Program, and postprocessed (by re-projection, filtering, etc.) and converted into the parquet format by IBM Research |
| Dataset Version Update | Version 1 – May 06, 2020 |
| Data Coverage | Dataset documents the existence and condition of surface water in the Mono Lake (California, USA) from 2013-04-18 to 2019-12-31 in a spatial resolution of 30 meters. |
| Business Use Case | This data can be used to determine the lake boundary, to compute the area of the lake from the boundary, and to generate a time-series of the lake water extent and condition to monitor how the lake is changing over the time. |
Dataset Archive Content
| File or Folder | Description |
|---|---|
mono_lake/layer=MASK |
Images that indicate where cloud, cloud shadow, and/or snow are true, or where the percent slope or hillshade thresholds were exceeded |
mono_lake/layer=INTR/ |
Images that provide the recoded results of five diagnostic tests to identify specific surface water conditions |
mono_lake/layer=INWM |
Images that are similar to the interpreted layer “INTR” but are screened using the mask layer “MASK”. Cloud, cloud shadow, and/or snow are flagged as such. Areas flagged as percent slope or hillshade in the mask layer are automatically recoded to “0” or “Not water” in this layer. |
LICENSE.txt |
Plaintext version of the CDLA-Sharing license |
README.txt |
Text file with the file names and description |
Data Glossary and Preview
Click here to explore the data glossary, sample records, and additional dataset metadata.
Use the Dataset
This dataset is complemented by a data exploration notebook to help you get started : Try the completed notebook
Related Links
Landsat Dynamic Surface Water Extent website where you can download the origial GeoTIFF formatted data.
Center for Open-Source Data & AI Technologies (CODAIT) – Improving the Enterprise AI Lifecycle in Open Source.”