HydroMet: A New Code for Automated Objective Optimization of Hydrometeorological Thresholds for Landslide Initiation
Abstract
:1. Introduction
2. Theoretical Basis
2.1. Optimizing with Receiver Operating Characteristics
2.2. Threshold Formulation
3. Implementation
3.1. System Requirements
3.2. Input Requirements
- Rainfall, saturation, pressure (RSP) files are four-column, header-less files
- ○
- Column 1: time of data recording, as a date number, (e.g., number of days since January 1, 0001)
- ○
- Column 2: rainfall measurement, in length (e.g., mm)
- ○
- Column 3: saturation measurement, unitless
- ○
- Column 4: pressure measurement, in ML−1T −2 (e.g., kPa)
- LandslideTimes files are single column, header-less files
- ○
- Column 1: time of landslide recording, as a date number
3.3. Additional Options
3.4. Operational Instructions
4. Output Files
5. Example Applications
6. Summary
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Optimized Skill Statistic | Optimal Threshold TPR | Optimal Threshold FPR | Formula P (mm), S (unitless) |
---|---|---|---|
threat score | 0.5333 | 0.0155 | P3 > 54, S1 > 0.70 |
optimal point | 0.9000 | 0.0918 | P3 > 24, S1 > 0.70 |
precision | 0.3222 | 0.0009 | P3 > 100, S1 > 0.70 |
true skill statistic | 0.9000 | 0.0918 | P3 > 24, S1 > 0.70 |
Round{Value} | ROCRound{Value} | BestThresholdRound{Value} | |
---|---|---|---|
Range of precipitation days to evaluate | • | ||
Range of saturation days to evaluate | • | ||
Threshold curve ROC Metric used to optimize threshold | • | ||
X intercept range | • | ||
Y intercept range | • | ||
Optimal cumulative rainfall days | • | • | |
Optimal antecedent saturation days | • | • | |
Optimal threshold y intercept | • | • | |
Optimal threshold x intercept | • | • | |
FPR | • | • | • |
TPR | • | • | • |
Threat score | • | • | |
Precision score | • | • | |
True skill statistic | • | • | |
Optimal Point score | • | • | |
Percent of landslides exceeding threshold | • | • | |
AUC | • | • | |
Best threshold from each P:S day combination | • | ||
Single Optimal Threshold | • |
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Conrad, J.L.; Morphew, M.D.; Baum, R.L.; Mirus, B.B. HydroMet: A New Code for Automated Objective Optimization of Hydrometeorological Thresholds for Landslide Initiation. Water 2021, 13, 1752. https://doi.org/10.3390/w13131752
Conrad JL, Morphew MD, Baum RL, Mirus BB. HydroMet: A New Code for Automated Objective Optimization of Hydrometeorological Thresholds for Landslide Initiation. Water. 2021; 13(13):1752. https://doi.org/10.3390/w13131752
Chicago/Turabian StyleConrad, Jacob L., Michael D. Morphew, Rex L. Baum, and Benjamin B. Mirus. 2021. "HydroMet: A New Code for Automated Objective Optimization of Hydrometeorological Thresholds for Landslide Initiation" Water 13, no. 13: 1752. https://doi.org/10.3390/w13131752