# WIA-ENE-057: Desertification Prevention
## PHASE 1 - Data Format Specification

**Version:** 1.0.0
**Status:** Standard
**Last Updated:** 2025-12-25

---

## Overview

This document defines the standardized data formats for monitoring land degradation, tracking vegetation health, measuring soil conditions, and recording restoration activities in the WIA-ENE-057 Desertification Prevention standard.

**Philosophy:** 弘益人間 (홍익인간) - Benefit All Humanity

---

## 1. Vegetation Index Data Format

### 1.1 NDVI/EVI Monitoring

```json
{
  "vegetationData": {
    "id": "VEG-20251225-SAHEL-001",
    "locationId": "SAHEL-REGION-001",
    "timestamp": "2025-12-25T10:00:00Z",
    "coordinates": {
      "latitude": 14.5,
      "longitude": -4.0,
      "datum": "WGS84"
    },
    "indices": {
      "ndvi": {
        "value": 0.35,
        "scale": "0-1",
        "source": "MODIS",
        "resolution": "250m"
      },
      "evi": {
        "value": 0.28,
        "scale": "0-1",
        "source": "MODIS",
        "resolution": "250m"
      },
      "lai": {
        "value": 1.2,
        "unit": "m²/m²",
        "description": "Leaf Area Index"
      }
    },
    "coverage": {
      "vegetationCover": 45.2,
      "bareGround": 42.8,
      "water": 2.0,
      "built": 10.0,
      "unit": "percentage"
    },
    "biomass": {
      "aboveGround": {
        "value": 2.4,
        "unit": "tons/hectare"
      },
      "belowGround": {
        "value": 1.8,
        "unit": "tons/hectare"
      }
    },
    "trendAnalysis": {
      "monthlyChange": -0.05,
      "annualChange": -0.15,
      "fiveYearTrend": -0.42,
      "status": "declining",
      "confidence": 0.87
    },
    "metadata": {
      "sensorType": "satellite",
      "cloudCover": 5,
      "quality": "high"
    }
  }
}
```

### 1.2 Field Definitions

| Field | Type | Required | Description |
|-------|------|----------|-------------|
| `id` | string | Yes | Unique identifier for this vegetation record |
| `locationId` | string | Yes | Reference to monitored location |
| `timestamp` | ISO8601 | Yes | Time of measurement |
| `coordinates` | object | Yes | Geographic coordinates |
| `indices.ndvi.value` | float | Yes | Normalized Difference Vegetation Index (0-1) |
| `indices.evi.value` | float | Yes | Enhanced Vegetation Index (0-1) |
| `coverage.vegetationCover` | float | Yes | Percentage of vegetation cover |
| `trendAnalysis.status` | enum | Yes | One of: declining, stable, improving |

---

## 2. Soil Condition Data Format

### 2.1 Soil Moisture & Quality

```json
{
  "soilData": {
    "id": "SOIL-20251225-SAHEL-001",
    "locationId": "SAHEL-REGION-001",
    "timestamp": "2025-12-25T10:00:00Z",
    "coordinates": {
      "latitude": 14.5,
      "longitude": -4.0
    },
    "moisture": {
      "surfaceLevel": 12.5,
      "unit": "percentage",
      "depthProfile": [
        {
          "depth": "0-10cm",
          "moisture": 15.2,
          "temperature": 28.5
        },
        {
          "depth": "10-30cm",
          "moisture": 12.8,
          "temperature": 26.2
        },
        {
          "depth": "30-60cm",
          "moisture": 10.1,
          "temperature": 24.8
        }
      ]
    },
    "soilType": {
      "classification": "sandy-loam",
      "texture": {
        "sand": 65,
        "silt": 25,
        "clay": 10,
        "unit": "percentage"
      }
    },
    "chemistry": {
      "ph": 7.2,
      "organicMatter": 1.8,
      "nitrogen": 0.08,
      "phosphorus": 12.5,
      "potassium": 145.2,
      "unit": "ppm for nutrients, percentage for organic matter"
    },
    "degradationIndicators": {
      "erosionRisk": {
        "level": "high",
        "score": 7.5,
        "scale": "0-10"
      },
      "compaction": {
        "level": "moderate",
        "bulkDensity": 1.45,
        "unit": "g/cm³"
      },
      "salinization": {
        "level": "low",
        "ec": 0.8,
        "unit": "dS/m"
      },
      "crusting": {
        "severity": "moderate",
        "thickness": 2.5,
        "unit": "cm"
      }
    },
    "waterRetention": {
      "fieldCapacity": 18.5,
      "wiltingPoint": 8.2,
      "availableWater": 10.3,
      "unit": "percentage"
    }
  }
}
```

### 2.2 Erosion Assessment

```json
{
  "erosionData": {
    "locationId": "SAHEL-REGION-001",
    "assessmentDate": "2025-12-25",
    "erosionType": "wind",
    "severity": {
      "rating": "severe",
      "soilLossRate": {
        "value": 15.2,
        "unit": "tons/hectare/year"
      }
    },
    "factors": {
      "windSpeed": {
        "average": 25.5,
        "gusts": 45.2,
        "unit": "km/h"
      },
      "vegetationCover": 35.2,
      "soilMoisture": 8.5,
      "surfaceRoughness": "low"
    },
    "interventions": [
      "windbreak-establishment",
      "cover-crop-planting",
      "mulching"
    ]
  }
}
```

---

## 3. Rainfall Pattern Data Format

### 3.1 Precipitation Monitoring

```json
{
  "rainfallData": {
    "id": "RAIN-2025-SAHEL-001",
    "locationId": "SAHEL-REGION-001",
    "period": {
      "start": "2025-01-01",
      "end": "2025-12-31",
      "type": "annual"
    },
    "totals": {
      "annualTotal": 325.4,
      "unit": "mm"
    },
    "seasonalDistribution": {
      "wetSeason": {
        "months": ["Jun", "Jul", "Aug", "Sep"],
        "total": 285.2,
        "percentage": 87.6
      },
      "drySeason": {
        "months": ["Oct", "Nov", "Dec", "Jan", "Feb", "Mar", "Apr", "May"],
        "total": 40.2,
        "percentage": 12.4
      }
    },
    "intensityMetrics": {
      "averageEventSize": 18.5,
      "maxSingleEvent": 65.3,
      "daysWithRain": 42,
      "heavyRainDays": 8,
      "heavyRainThreshold": 25.0
    },
    "historicalComparison": {
      "10yearAverage": 425.8,
      "30yearAverage": 485.2,
      "deviation": -23.6,
      "trend": "decreasing",
      "droughtIndex": {
        "spi": -1.8,
        "category": "moderate-drought",
        "description": "Standardized Precipitation Index"
      }
    },
    "eventRecords": [
      {
        "date": "2025-07-15",
        "amount": 65.3,
        "duration": 4.5,
        "intensity": "high",
        "unit": "mm for amount, hours for duration"
      }
    ]
  }
}
```

---

## 4. Land Use & Management Data Format

### 4.1 Land Use Classification

```json
{
  "landUseData": {
    "locationId": "SAHEL-REGION-001",
    "timestamp": "2025-12-25T10:00:00Z",
    "area": {
      "total": 10000,
      "unit": "hectares"
    },
    "classification": {
      "agriculture": {
        "area": 4500,
        "percentage": 45.0,
        "type": "subsistence-farming",
        "intensity": "moderate",
        "crops": ["millet", "sorghum", "peanuts"]
      },
      "grazing": {
        "area": 3200,
        "percentage": 32.0,
        "intensity": "high",
        "animalUnits": 2400,
        "stockingRate": 0.75
      },
      "forest": {
        "area": 1200,
        "percentage": 12.0,
        "canopyCover": 35.5,
        "condition": "degraded"
      },
      "barren": {
        "area": 800,
        "percentage": 8.0,
        "type": "degraded-land"
      },
      "water": {
        "area": 200,
        "percentage": 2.0,
        "type": "seasonal"
      },
      "built": {
        "area": 100,
        "percentage": 1.0
      }
    },
    "managementPractices": {
      "tillage": "conventional",
      "irrigation": "none",
      "fertilization": "minimal",
      "pestManagement": "traditional",
      "soilConservation": ["none"]
    },
    "pressure": {
      "populationDensity": 85,
      "livestockDensity": 240,
      "fuelwoodCollection": "high",
      "overallPressure": "high"
    }
  }
}
```

---

## 5. Restoration Activity Data Format

### 5.1 Restoration Project Record

```json
{
  "restorationProject": {
    "projectId": "REST-2025-SAHEL-001",
    "projectName": "Sahel Green Belt Initiative",
    "organization": "Great Green Wall Foundation",
    "location": {
      "locationId": "SAHEL-REGION-001",
      "coordinates": {
        "latitude": 14.5,
        "longitude": -4.0
      },
      "area": {
        "total": 1000,
        "unit": "hectares"
      }
    },
    "timeline": {
      "startDate": "2023-03-15",
      "plannedEndDate": "2028-03-15",
      "currentPhase": "implementation"
    },
    "objectives": [
      "soil-stabilization",
      "vegetation-recovery",
      "biodiversity-enhancement",
      "livelihood-improvement"
    ],
    "interventions": {
      "reforestation": {
        "area": 450,
        "species": [
          {
            "name": "Acacia senegal",
            "quantity": 25000,
            "survivalRate": 78.5
          },
          {
            "name": "Balanites aegyptiaca",
            "quantity": 15000,
            "survivalRate": 82.3
          }
        ],
        "plantingMethod": "direct-seeding-and-nursery",
        "spacing": "3x3 meters"
      },
      "soilConservation": {
        "measures": [
          {
            "type": "half-moon-technique",
            "area": 200,
            "quantity": 5000
          },
          {
            "type": "stone-bunds",
            "length": 15.5,
            "unit": "km"
          }
        ]
      },
      "waterManagement": {
        "techniques": [
          {
            "type": "rainwater-harvesting",
            "structures": 45,
            "capacity": 2250,
            "unit": "cubic-meters"
          }
        ]
      }
    },
    "progress": {
      "completion": 65.0,
      "milestones": [
        {
          "name": "Site preparation",
          "status": "completed",
          "completionDate": "2023-06-30"
        },
        {
          "name": "Tree planting",
          "status": "completed",
          "completionDate": "2024-09-15"
        },
        {
          "name": "Monitoring & maintenance",
          "status": "in-progress",
          "progress": 40.0
        }
      ]
    },
    "outcomes": {
      "environmental": {
        "vegetationCoverIncrease": 35.2,
        "soilErosionReduction": 60.5,
        "carbonSequestration": {
          "value": 1250,
          "unit": "tons-CO2"
        },
        "biodiversityImprovement": {
          "speciesCount": 42,
          "increase": 25.0
        }
      },
      "social": {
        "beneficiaries": 2500,
        "jobsCreated": 145,
        "incomeIncrease": 18.5
      }
    },
    "funding": {
      "totalBudget": 500000,
      "spent": 325000,
      "currency": "USD",
      "sources": [
        {
          "name": "Green Climate Fund",
          "amount": 300000
        },
        {
          "name": "Local Government",
          "amount": 200000
        }
      ]
    }
  }
}
```

---

## 6. Composite Monitoring Report

### 6.1 Integrated Assessment

```json
{
  "monitoringReport": {
    "reportId": "REPORT-2025-Q4-SAHEL-001",
    "locationId": "SAHEL-REGION-001",
    "reportingPeriod": {
      "start": "2025-10-01",
      "end": "2025-12-31",
      "quarter": "Q4",
      "year": 2025
    },
    "desertificationRisk": {
      "overallScore": 68.5,
      "category": "high-risk",
      "factors": {
        "vegetation": {
          "score": 35.0,
          "weight": 0.30,
          "status": "degraded"
        },
        "soil": {
          "score": 72.0,
          "weight": 0.25,
          "status": "severely-degraded"
        },
        "climate": {
          "score": 85.0,
          "weight": 0.25,
          "status": "adverse"
        },
        "humanActivity": {
          "score": 90.0,
          "weight": 0.20,
          "status": "high-pressure"
        }
      }
    },
    "keyIndicators": {
      "vegetation": {
        "ndvi": 0.35,
        "trend": "declining",
        "change": -0.05
      },
      "soil": {
        "moisture": 12.5,
        "organicMatter": 1.8,
        "erosionRisk": "high"
      },
      "rainfall": {
        "annual": 325.4,
        "deviation": -23.6,
        "trend": "decreasing"
      }
    },
    "alerts": [
      {
        "severity": "high",
        "type": "rapid-vegetation-decline",
        "message": "NDVI decreased by 15% in 3 months",
        "date": "2025-11-15"
      },
      {
        "severity": "medium",
        "type": "soil-moisture-low",
        "message": "Soil moisture below critical threshold",
        "date": "2025-12-10"
      }
    ],
    "recommendations": [
      "Implement immediate soil conservation measures",
      "Establish green belt with drought-resistant species",
      "Reduce grazing intensity by 40%",
      "Introduce water harvesting techniques"
    ],
    "certifications": {
      "ldnCompliant": true,
      "unccdReported": true,
      "verificationStatus": "blockchain-anchored"
    }
  }
}
```

---

## 7. Data Quality & Validation

### 7.1 Quality Assurance

```json
{
  "qualityMetrics": {
    "dataCompleteness": 95.5,
    "accuracy": 92.3,
    "timeliness": 98.7,
    "consistency": 94.1,
    "validationMethod": "automated-and-expert-review",
    "lastValidation": "2025-12-25T10:00:00Z"
  }
}
```

### 7.2 Validation Rules

| Field | Validation Rule | Error Handling |
|-------|----------------|----------------|
| NDVI | Must be between -1 and 1 | Reject if outside range |
| Soil Moisture | Must be 0-100% | Flag for review if >60% |
| Rainfall | Non-negative values | Flag negative values |
| Coordinates | Valid lat/long | Reject invalid coordinates |

---

## 8. Versioning & Compatibility

- **Current Version:** 1.0.0
- **Backwards Compatibility:** Maintained for v0.9.x
- **Breaking Changes:** None in 1.0.0
- **Migration Path:** Automated conversion tools available

---

## 9. Standards Compliance

- **ISO 19115:** Geographic Information - Metadata ✓
- **OGC Standards:** WMS, WFS, WCS ✓
- **UNCCD LDN:** Land Degradation Neutrality Reporting ✓
- **W3C VC:** Verifiable Credentials for Certifications ✓

---

**Document Control:**
- **Author:** WIA Standards Committee
- **Review Date:** 2025-12-25
- **Next Review:** 2026-06-25
- **Philosophy:** 弘益人間 (홍익인간) - Benefit All Humanity

© 2025 SmileStory Inc. / WIA
