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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

v1.1.0 - 2026-06-25

Added

The gridded output now includes history and history_json global attributes describing the version of the service and the time of the gridding operation, to adhere to TRT-42. Any provenance already present on the input granule is preserved and the new gridding record is appended. (DAS-2323)

v1.0.1 - 2026-01-06

Changed

Release notes for the SMAP L2 Gridding service will now include the commit history for that release.
Updates service to run on python 3.13 and updates internal python libs to avoid urllib3 vulnerabilites.

v1.0.0 - 2025-07-29

Changed

SPL2SMP multi dimensional trajectories, 'landcover_class' and 'landcover_class_fraction', are no longer flattened in the output. Instead, each layer of the trajectory is gridded and then combined into a 3D result that is included in the output. This change is generic and any 2D trajectory data will be processed in the same manner.

v0.4.0 - 2025-06-16

Added

Adds example notebook to demonstrate the service and examine the output data.

Fixed

Fixes bug for SPL2SMP requests that occurred when a SMAP-L2-Gridding request was preceeded by a Trajectory Subsetter variable subset request (DAS-2383). Two dimensional variables in the collection are now checked to ensure they are in the input file before flattening them.

v0.3.0 - 2025-02-17

Added

Adds support for SPL2SMP (SMAP L2 Radiometer Half-Orbit 36 km EASE-Grid Soil Moisture, Version 9). The 2D input variables landcover_class and landcover_class_fraction are separated into 3 1D variables before gridding. tb_time_utc is dropped in the output and can be derived from tb_time_seconds

v0.2.1 - 2025-02-06

Changed

Output file written incrementally to reduce total memory usage.

v0.2.0 - 2025-02-04

Added

Adds support for SPL2SMA (SMAP L2 Radar Half-Orbit 3 km EASE-Grid Soil Moisture, Version 3).

v0.1.0 - 2025-01-21

Added

Adds support for SPL2SMAP (SMAP L2 Radar/Radiometer Half-Orbit 9 km EASE-Grid Soil Moisture).
Removes tb_time_utc variables from SPL2SMP_E output.

v0.0.4 - 2024-12-04

Changed

Docker images are renamed to harmony-smap-l2-gridder #8

v0.0.2 - 2024-12-03

Changed

Docker images now use full repository name #7

v0.0.1 - 2024-11-27

Added

Initial codebase that transforms SPL2SMP_E granules into NetCDF4-CF grids #1
Code and configuration to wrap gridding logic into a Harmony Service #3
GitHub actions CI configuration #4