micromet 0.4.1

A comprehensive Python package for micrometeorological data analysis

MicroMet

A Python toolkit for meteorological data processing.

Description

MicroMet is a comprehensive Python toolkit for processing, analyzing, and visualizing micrometeorological data. It is particularly well-suited for handling half-hourly Eddy Covariance data from Campbell Scientific CR6 dataloggers running EasyFluxDL, and for preparing data for submission to the AmeriFlux Data Portal.

The toolkit provides a suite of tools for common data processing tasks, including reading various file formats, reformatting and standardizing data, performing quality assurance checks, and generating insightful plots and reports.

Features

• Data Reading: Read Campbell Scientific TOA5 and AmeriFlux output files.
• Data Reformatting: A flexible pipeline for cleaning and standardizing data, including timestamp correction, column renaming, and unit conversion.
• Quality Assurance: Tools for applying physical limits to variables, detecting and handling outliers, and assessing timestamp alignment.
• Data Visualization: A range of plotting functions for visualizing data, including time series plots, scatter plots, energy balance Sankey diagrams, and Bland-Altman plots.
• Data Reporting: Utilities for generating reports on data quality and analysis results.
• Station Data Management: Tools for downloading data directly from stations and managing data in a database.

Installation

You can install MicroMet using pip:

pip install micromet

Or via conda-forge:

conda install -c conda-forge micromet

Setup for Development

To set up the project for development, follow these steps:

1. Clone the repository:

   git clone https://github.com/your-username/micromet.git
   cd micromet
   

2. Create and activate a virtual environment:

   python -m venv venv
   source venv/bin/activate  # On Windows, use `venv\Scripts\activate`
   

3. Install the package in editable mode with development dependencies:

   pip install -e .[dev]
   

4. Run the tests:

   pytest
   

Usage

Here are some examples of how to use the MicroMet package.

Reading Data

The AmerifluxDataProcessor class can be used to read AmeriFlux-style data files.

from micromet.reader import AmerifluxDataProcessor

processor = AmerifluxDataProcessor()
df = processor.to_dataframe("path/to/your/data.dat")

Reformatting Data

The Reformatter class is the main entry point for cleaning and standardizing your data.

from micromet.format.reformatter import Reformatter
import pandas as pd

# Assuming you have a DataFrame `df` with your raw data
# and a `data_type` of 'eddy' or 'met'
reformatter = Reformatter()
cleaned_df, report = reformatter.prepare(df, data_type='eddy')

Generating Reports and Plots

The report module provides tools for generating various plots and reports.

Energy Balance Sankey Diagram

from micromet.report.graphs import energy_sankey
import pandas as pd

# Assuming `df` is a DataFrame with the required energy balance components
fig = energy_sankey(df, date_text="2024-06-19 12:00")
fig.show()

Instrument Comparison Scatter Plot

from micromet.report.graphs import scatterplot_instrument_comparison

# Assuming `edmet` is a DataFrame with instrument data and `compare_dict`
# defines the instruments to compare.
slope, intercept, r_squared, p_value, std_err, fig, ax = scatterplot_instrument_comparison(
    edmet, compare_dict, station="MyStation"
)

Modules

The micromet package is organized into the following modules:

• reader: Contains the AmerifluxDataProcessor for reading data files.
• format: A subpackage with modules for data formatting, including:
  • reformatter: The main Reformatter class for cleaning and standardizing data.
  • transformers: A collection of data transformation functions.
  • add_header_from_peer: Tools for fixing files with missing headers.
  • compare: Functions for comparing two time series.
  • file_compile: Utilities for compiling multiple files.
  • headers: Helper functions for working with file headers.
• qaqc: A subpackage for quality assurance and control, including:
  • netrad_limits: Tools for quality assurance of timestamp alignment.
  • variable_limits: A dictionary defining physical and plausible ranges for variables.
• report: A subpackage for generating reports and plots, with:
  • graphs: Functions for creating various plots.
  • tools: A collection of utility functions for analysis and reporting.
• station_data_pull: Classes for downloading and processing data from stations.
• station_info: Configuration data for stations.
• utils: A collection of miscellaneous utility functions.

Contributing

Contributions are welcome! If you would like to contribute to the project, please follow these steps:

1. Fork the repository on GitHub.
2. Create a new branch for your feature or bug fix.
3. Make your changes and commit them with a clear and descriptive message.
4. Push your changes to your fork.
5. Create a pull request to the main repository.

Please ensure that your code follows the existing style and that you add or update tests as appropriate.

Documentation

For more detailed information, the full documentation can be found on Read the Docs.