Metrics¶

The rainymotion library provides the extensive list of goodness-of-fit statistical metrics to evaluate nowcasting models performance.

Metric	Description
Regression
R	Correlation coefficient
R2	Coefficient of determination
RMSE	Root mean squared error
MAE	Mean absolute error
QPN specific
CSI	Critical Success Index
FAR	False Alarm Rate
POD	Probability Of Detection
HSS	Heidke Skill Score
ETS	Equitable Threat Score
BSS	Brier Skill Score
ML specific
ACC	Accuracy
precision	Precision
recall	Recall
FSC	F1-score
MCC	Matthews Correlation Coefficient

You can easily use any metric for verification of your nowcasts:

# import the specific metric from the rainymotion library
from rainymotion.metrics import CSI

# read your observations and simulations
obs = np.load("/path/to/observations")
sim = np.load("/path/to/simulations")

# calculate the corresponding metric
csi = CSI(obs, sim, threshold=1.0)