Validation Results

Summary: ESA_SM_ACTIVE_ISMN

  • Started validation on July 19, 2021, 3:20 p.m. UTC, finished on July 19, 2021, 3:20 p.m. UTC.
  • Compared 2 datasets:
    • Dataset 1: ESA CCI SM active (v06.1, sm) [Filters: Not freezing and no snow-cover (flag != 1); No dense vegetation (flag != 2); Ascending mode only; Variable in valid geophysical range; Data with no inconsistencies detected (flag = 0); ]
    • Reference: ISMN (20210131 global, soil_moisture) [Filters: Variable in valid geophysical range; Quality flag is "good" (G); Use ISMN networks: AMMA-CATCH,BIEBRZA_S-1,BNZ-LTER,CARBOAFRICA,COSMOS,CTP_SMTMN,DAHRA,FLUXNET-AMERIFLUX,FMI,FR_Aqui,HOBE,iRON,LAB-net,MySMNet,OZNET,PBO_H2O,REMEDHUS,RISMA,RSMN,SCAN,SMOSMANIA,TERENO,USCRN,WEGENERNET,WSMN; Use measurements at given depth: 0,0.1; ]
  • Spatial filter bounding box: [10.1384687407643, 65.4609417915344, 31.4603036705338, 96.9609332084656].
  • Validation period / temporal filter: Aug. 5, 1991, midnight UTC to Dec. 31, 2020, 11:59 p.m. UTC.
  • Validation metrics calculated from anomalies against 35 day moving average.
  • Triple collocation analysis was deactivated.
  • Scaling reference: ISMN (20210131 global, soil_moisture) [Filters: Variable in valid geophysical range; Quality flag is "good" (G); Use ISMN networks: AMMA-CATCH,BIEBRZA_S-1,BNZ-LTER,CARBOAFRICA,COSMOS,CTP_SMTMN,DAHRA,FLUXNET-AMERIFLUX,FMI,FR_Aqui,HOBE,iRON,LAB-net,MySMNet,OZNET,PBO_H2O,REMEDHUS,RISMA,RSMN,SCAN,SMOSMANIA,TERENO,USCRN,WEGENERNET,WSMN; Use measurements at given depth: 0,0.1; ]
  • Scaling method: Mean/standard deviation.
  • Processing took 0 minutes (wall time).
  • 0% (0 of 38) of the processed locations (grid points) produced errors during calculation.
  • This result was published on zenodo with DOI 10.5281/zenodo.5114399.

Summary statistics

The mean, median and standard deviation are calculated on the validation results aggregated by metric and dataset. The reference dataset used is ISMN (20210131 global, soil_moisture).

Metric Mean Median IQ range Dataset
# observations 5537.47 6548. 2899.5 All datasets
Bias (difference of means) [% sat] ~ 0 ~ 0 ~ 0 1-ESA_CCI_SM_active (v06.1)
Mean square error [(% sat)²] 9.17e-04 8.27e-04 5.92e-04 1-ESA_CCI_SM_active (v06.1)
Mean square error bias [(% sat)²] ~ 0 ~ 0 ~ 0 1-ESA_CCI_SM_active (v06.1)
Mean square error correlation [(% sat)²] 9.17e-04 8.27e-04 5.92e-04 1-ESA_CCI_SM_active (v06.1)
Mean square error variance [(% sat)²] ~ 0 ~ 0 ~ 0 1-ESA_CCI_SM_active (v06.1)
Pearson's r [-] 0.52 0.55 0.12 1-ESA_CCI_SM_active (v06.1)
Pearson's r p-value [-] 1.74e-02 ~ 0 ~ 0 1-ESA_CCI_SM_active (v06.1)
Residual sum of squares [(% sat)²] 5.03 4.91 3.47 1-ESA_CCI_SM_active (v06.1)
Root-mean-square deviation [% sat] 2.9e-02 2.88e-02 1.05e-02 1-ESA_CCI_SM_active (v06.1)
Spearman's rho [-] 0.52 0.55 0.1 1-ESA_CCI_SM_active (v06.1)
Spearman's rho p-value [-] 2.15e-02 ~ 0 ~ 0 1-ESA_CCI_SM_active (v06.1)
Unbiased root-mean-square deviation [% sat] 2.9e-02 2.88e-02 1.05e-02 1-ESA_CCI_SM_active (v06.1)

Result files

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