ctd 0.4.0

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Download-URL: http://pypi.python.org/pypi/ctd
Description: python-ctd
==========

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Tools to load hydrographic data as pandas DataFrame with some handy methods for
data pre-processing and analysis

This module can load `SeaBird CTD
(CNV) <http://www.seabird.com/software/SBEDataProcforWindows.htm>`_,
`Sippican XBT (EDF) <http://www.sippican.com/>`_, and `Falmouth CTD
(ASCII) <http://www.falmouth.com/>`_ formats.

Quick intro
-----------

.. code-block:: bash

pip install ctd

or

.. code-block:: bash

conda install ctd


and then,

.. code-block:: python

from ctd import DataFrame

fname = './tests/data/CTD/g01l06s01.cnv.gz'
cast = DataFrame.from_cnv(fname)
downcast, upcast = cast.split()
fig, ax = downcast['t090C'].plot()

.. image:: https://raw.githubusercontent.com/ocefpaf/python-ctd/master/docs/readme_01.png
:alt: Bad Processing

We can do
`better <http://www.go-ship.org/Manual/McTaggart_et_al_CTD.pdf>`_:

.. code-block:: python

from ctd import DataFrame, lp_filter, movingaverage

cast = DataFrame.from_cnv(fname, below_water=True)
downcast, upcast = cast.split()
temperature = downcast['t090C'].despike(n1=2, n2=20, block=100)
temperature.index = lp_filter(temperature.index.values)
temperature = temperature.bindata(delta=1)
temperature = temperature.interpolate()
temperature = temperature.smooth(window_len=21, window='hanning')
fig, ax = temperature.plot()
ax.set_ylabel('Pressure (dbar)')
ax.set_xlabel(u'Temperature (°C)');

.. image:: https://raw.githubusercontent.com/ocefpaf/python-ctd/master/docs/readme_02.png
:alt: Good Processing

Not so quick intro
------------------

`Profiles <http://ocefpaf.github.io/python4oceanographers/blog/2013/05/27/CTD2DataFrame/>`_ and
`sections <http://ocefpaf.github.io/python4oceanographers/blog/2013/07/29/python-ctd/>`_.

Author
------

Filipe Fernandes

Changelog
---------

Version 0.4.0

* Read searbird `bl` files
* Fixed some warnings for the latest pandas
* Fixed hardcoded number of stats in `from_btl`
* Added a seabird ASCII bottle reader
* Unified bottle and cnv parsers

Version 0.3.0

* Changed license from `MIT` to BSD 3-Clause
* Fixed `gsw 3.1.1` compatibility issues
* Fixed reading pressure column from Sea Bird MicroCat SBE 37SM
* Fixed Python 2/3 encoding issues
* Improved CI test framework

This will be the past version using `pandas` b/c the `Panel` class is deprecated.
The next version will probably use `xarray` to store and serialized the CTD data.

Version 0.2.2

* Support for different searbird `cnv` pressure spellings ('prDM' and 'prdM')
thanks @j08lue.
* Lazy import for optinal dependencies (`gsw` and `scipy`).
* Several small bug fixes

Version 0.2.1

* None is assigned to position data when it is not available.

Version 0.2.0

* Fixed compatibility fir 0.13.

Version 0.1.0

* First version derived from oceans package.

Keywords: oceanography,data analysis,DataFrame
Platform: any
Classifier: Development Status :: 5 - Production/Stable
Classifier: Environment :: Console
Classifier: Intended Audience :: Science/Research
Classifier: Intended Audience :: Developers
Classifier: Intended Audience :: Education
Classifier: License :: OSI Approved :: BSD License
Classifier: Operating System :: OS Independent
Classifier: Programming Language :: Python
Classifier: Topic :: Scientific/Engineering
Classifier: Topic :: Education