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# MHKiT-Python v1.1.0 ## Additions * Acoustics: Add millicdecade and WISPR instrument support * Added millidecade spectral conversion * Added a WISPR hydrophone reader * Added a voltage-based `export_audio` resampling option * Refactored band-averaging to avoid losing information at frequency-band boundaries * #447 * Author: @jmcvey3 * Reviewer: @simmsa * DOLfYN: Add [Nortek Aquadopp](https://www.nortekgroup.com/oceanography/aquadopp-series) ADCP support * Added DOLfYN support for reading Aquadopp instruments * Cleaned Nortek parsing code * Simplified handling of the non-cabled ADV orientation flag * #434 * Author: @jmcvey3 * Reviewer: @akeeste * Examples: Add ADCP waves example: `example/adcp_waves_example.ipynb` * Added an example notebook showing how to ingest and analyze wave measurements from a dual-profile Nortek Signature 250 deployment at PacWave. * #430 * Author: @jmcvey3 * Reviewer: @akeeste ## Improvements ### Acoustics - Improved flexibility and robustness of the Acoustics module - Added a configurable FFT length for sound pressure PSDs - Renamed bin/windowing attributes for clarity - Fixed an incorrectly signed gain correction - #433 - Author: @jmcvey3 - Reviewer: @akeeste ### DOLfYN - Refactored PSD calculations to use `scipy.signal.welch` - Replaced DOLfYN's custom Welch-like PSD implementation (built each segment from bin slices, could not overlap FFT segments) with `scipy.signal.welch` - Removed the bin-based segment structure and added a `step` argument to control overlap - Dropped float32 casts in some functions in favor of float64 - Removed `fft.py` and renamed `tools/misc.py` to `tools.py` - Breaking Changes: - NaNs are no longer tolerated in PSD calculations - DOLfYN defaults to 0% overlap to preserve existing array shapes - Acoustics defaults to 50% overlap - PSD output time dimension renamed to `time_psd` - #452 - Author: @jmcvey3 - Reviewer: @akeeste, @simmsa - Improved handling of "averaged" profiles - Fixed handling of Nortek Signature dual-profile ADCP data by defaulting to "_avg" velocity variables when untagged ones are absent. - #430 - Author: @jmcvey3 - Reviewer: @akeeste - Critical PSD bugfix - Fixed a bug where individual FFTs received a 50% overlap twice, which corrupted the first and last spectrum of a timeseries. - #430 - Author: @jmcvey3 - Reviewer: @akeeste ### Examples - Added histograms to ADCP example - #448 - Author: @browniea - Reviewer: @akeeste ### River/IO - Fixed Qhull interpolation and D3D coordinate-system errors - #448 - Author: @browniea - Reviewer: @akeeste - Fixes: #442, #444 - Delft3D module updates - Added new Delft3D coordinate names - Added a new grid-convergence-index calculation function - Added support for xarray/netCDF4 input in the D3D module - #428 - Author: @browniea - Reviewer: @akeeste ### Wave - NDBC Directional Wave Units - Fixed NDBC directional wave spectrum output to return degrees instead of radians - Updated polar plots so 0 deg is at the top and increases clockwise - #437 - Author: @jmcvey3 - Reviewer: @akeeste - Fixes: #427 ### Wave/Hindcast - Added a `hindcast_guard` exception-handling decorator (`hindcast_exceptions.py`) that surfaces a clear error on HSDS request failures, distinguishing the known NLR HSDS outage (#450) from other failures - #449 - Author: @simmsa - Reviewer: @akeeste ## Maintenance - Added Python 3.13 support - #445 - Author: @simmsa - Reviewer: @akeeste - Fixes: #441 - Added [pandas 3](https://pandas.pydata.org/community/blog/pandas-3.0.html) Support - Updated the pandas dependency to allow pandas 3.x - Added a compatibility shim for NDBC missing-value handling related to pandas 3 object to String dtype api changes - Fixed a deprecated period alias in tests - #443 - Author: @simmsa - Reviewer: @akeeste - Fixes: #440 - Updated GitHub Actions CI, expanded installation/developer documentation, refreshed dev environment, and trimmed dependencies - Refactored optional dependencies - Standardized conda/conda-forge environment builds - Scoped black linting to changed files - #436 - Author: @simmsa - Reviewer: @akeeste - Update `rex` dependency to target pypi package to [`NLR-rex[hsds]>=0.5.0`](https://pypi.org/project/NLR-rex/) - #449 - Author: @simmsa - Reviewer: @akeeste
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