Using Harmony Tools In Earthdata Search
LAADS DAAC invites users to customize datasets prior to downloading. Customizations can include temporal, spatial, variable subsetting. Other customizations continue to be added.
Data users customizing their data downloaded from Earthdata Search can utilize the following customizations through Harmony Tools.
| Tool | Description |
|---|---|
| Subset-Band-Name | Service capable of subsetting HDF4/HDF-EOS2 SDS variables by band name for MODIS 6.1 collections, reducing the size of files that are downloaded. Band names are differentiated by different wavelength ranges and a complete list of band names and corresponding wavelength ranges is available from the MODIS Characterization Support Team. |
| Geoloco | Service capable of reprojecting, resampling, regridding, and spatial and SDS subsetting HDF4/HDF-EOS2 SDS variables for MODIS L1B collections. The wrapper also retrieves the geolocation file name from the input file Core Metadata and downloads it from S3. This tool works with L1B-L4 granules (L1B and L2 granule SDSs are automatically regridded with default setting granule resolution and geographic projection). |
More information is available about other Harmony Tools on Earthdata.
How To Use Harmony Tools in Earthdata Search
Earthdata Webinar July 31, 2025: Harmony Services: Subset, Regrid, and Reproject Data in the Cloud
Learn how to customize Level-1 and atmospheric datasets prior to download using the new geoloco and subset-band-name tools. These tools are provided in NASA Earthdata Search and help users request only the data that they need in the format desired, saving valuable bandwidth and time. The data provided is analysis-ready for use in the cloud or on local servers. In this previously recorded webinar, software engineer, Christine Brown-Stevenson, demonstrates how to access these tools in Earthdata Search and provides a preview of available scripts for use in Jupyter Notebooks.