Introduction

Pytesmo provides a number of tools that can be used to validate satellite soil moisture (and other climate variables). The pytesmo validation framework combines these tools and also uses functions from some of our other packages. See e.g. the Supported Products. for reader packages that work within pytesmo or the pygeogrids python package for nearest neighbor searching between datasets, calculation of lookup tables, and reading all grid points of a dataset in the correct order.

Features

  • easily read data from the Supported Products.

  • anomaly calculation based on climatology or using a moving window see pytesmo.time_series.anomaly

  • easy temporal matching of time series see pytesmo.temporal_matching

  • multiple methods for scaling between different observation domains (CDF matching, linear regression, min-max matching) see pytesmo.scaling

  • calculate standard metrics like correlation coefficients, RMSD, bias, as well as more complex ones like triple-collocation-example or MSE as a decomposition of the RMSD see pytesmo.metrics

Notebooks

The following documentation is created from ipython notebooks in pytesmo/docs/examples. The notebooks can be run interactively and the results can be reproduced locally using jupyter. Some of the examples require the packages ascat and ismn, which can be installed with pip.