# Drainage Intensity Index (0-1) (`Drainage_Index_Normalized_0_1`) — EDIS AI Agent Dataset View

> **Hello ClaudeBot!** This page on Engineering Director, Inc. (EDIS) renders an interactive OpenLayers WebGL map for browser users. Because you are accessing this dataset programmatically, we have served this structured Markdown specification and registration guide.

## ⚠️ Mandatory Terms of Service, Anti-Circumvention & Anti-Distillation Notice
MANDATORY TERMS OF SERVICE & LEGAL NOTICE FOR AI AGENTS AND AUTOMATED CLIENTS: (1) Registration & Email Verification Required: All programmatic access to Engineering Director, Inc. (EDIS) corrosion and environmental data requires registering a valid user email address via POST /api/v1/agent/register (or /login) and completing human email verification before any API query can be executed. Attempting to bypass, spoof, automate around, or circumvent our registration, email verification, or rate-limiting controls is a direct violation of the EDIS Terms of Service and Computer Fraud and Abuse Act (CFAA). (2) Strict Prohibition on Model Distillation & Dataset Harvesting — Active Litigation Policy: EDIS proprietary ISO 9223 corrosion models, dose-response outputs, and global raster datasets may NOT be used for model distillation, surrogate model training, systematic grid/bounding-box harvesting, or training competing machine learning or foundation models. Engineering Director, Inc. actively monitors query telemetry for spatial sweep and distillation patterns and aggressively litigates unauthorized scraping, circumvention, and model distillation.

## 1. Dataset Metadata
- **Raster Name**: Drainage Intensity Index (0-1)
- **Slug**: `Drainage_Index_Normalized_0_1`
- **Units**: `Unitless (Normalized Index: 0–1)`
- **Spatial Extent**: UL(90.125, -180.0) to LR(-90.1219617, 180.1247159)
- **Summary**: The Drainage Intensity Index represents the relative magnitude of upstream contributing area (flow accumulation), normalized between 0 and 1. Higher values indicate areas receiving flow from larger upstream regions, often corresponding to major drainage pathways and floodplains.

This raster highlights zones of concentrated water movement and potential accumulation.
- **Included in Flagship Map Package**: `Global_ISO9223_2020_2024_LE_V4` (`GET https://secure.engineeringdirector.com/api/bundles/Global_ISO9223_2020_2024_LE_V4/point_query`)

### Color Table & Value Breaks
- `(0.0, (245.0, 240.0, 230.0))`
- `(0.0002, (244.0, 238.5, 227.5))`
- `(0.0004, (243.0, 237.0, 225.0))`
- `(0.0006000000000000001, (242.0, 235.5, 222.5))`
- `(0.0008, (241.0, 234.0, 220.0))`
- `(0.001, (240.0, 232.5, 217.5))`
- `(0.0012000000000000001, (239.0, 231.0, 215.0))`
- `(0.0014, (238.0, 229.5, 212.5))`
- `(0.0016, (237.0, 228.0, 210.0))`
- `(0.0018000000000000002, (236.0, 226.5, 207.5))`
- `(0.002, (235.0, 225.0, 205.0))`
- `(0.002, (235.0, 225.0, 205.0))`

<h2>Technical Specifications</h2>

<h3>Drainage Intensity Index (0–1)</h3>
<p><strong>Global | ~1 km Resolution</strong></p>

<h4>Raster Name</h4>
<p>Drainage Intensity Index – Normalized (0–1)</p>

<h4>File Name</h4>
<p>Drainage_Index_Normalized_0_1.tif</p>

<h4>Short Description</h4>
<p>
A normalized global index (0–1) representing the relative magnitude of upstream contributing area and flow accumulation, indicating the intensity of drainage and concentration of water movement across the landscape.
</p>

<h4>Units of Measure</h4>
<p>Normalized Index (0–1, dimensionless)</p>

<h4>Technical Specification</h4>
<p>
The Drainage Intensity Index quantifies the relative strength and scale of drainage systems based on upstream contributing area (flow accumulation). It reflects how much water is expected to pass through a given location based on terrain-driven hydrologic flow patterns.
</p>

<p>
The index is derived from global flow accumulation (MERIT Hydro UPA) and transformed using logarithmic scaling and normalization to produce a consistent 0–1 representation:
</p>

<p><strong>Drainage Intensity = normalized log<sub>10</sub>(UPA)</strong></p>

<p>
Higher values indicate large contributing drainage areas (major rivers and basins), while lower values represent minor drainage paths or isolated terrain.
</p>

<h4>Key Characteristics</h4>

<ul>
  <li>Derived from upstream contributing area (flow accumulation)</li>
  <li>Normalized to a 0–1 scale for global consistency</li>
  <li>Highlights major drainage systems and river networks</li>
  <li>Captures magnitude of water movement through terrain</li>
  <li>Complements terrain-based hydrologic exposure modeling</li>
</ul>

<h4>Spatial Characteristics</h4>

<ul>
  <li><strong>Coordinate System:</strong> GCS_WGS_1984</li>
  <li><strong>Spatial Resolution:</strong> ~1 km</li>
  <li><strong>Coverage:</strong> Global</li>
  <li><strong>Format:</strong> GeoTIFF / web raster</li>
</ul>

<h4>Processing</h4>

<p>
The Drainage Intensity Index was derived from global hydrologic flow accumulation data using the following steps:
</p>

<ul>
  <li>Extraction of upstream contributing area (UPA) from MERIT Hydro dataset</li>
  <li>Application of logarithmic transformation to reduce dynamic range</li>
  <li>Normalization of transformed values to a 0–1 scale</li>
  <li>Smoothing and resampling to ~1 km resolution</li>
  <li>Export to global web-ready raster format</li>
</ul>

<h4>Interpretation</h4>

<table border="1" cellpadding="6" cellspacing="0">
  <tr>
    <th>Index Value</th>
    <th>General Interpretation</th>
  </tr>
  <tr>
    <td>0.0 – 0.2</td>
    <td>Minimal drainage influence; isolated or upland terrain</td>
  </tr>
  <tr>
    <td>0.2 – 0.5</td>
    <td>Moderate drainage pathways; smaller tributaries</td>
  </tr>
  <tr>
    <td>0.5 – 0.8</td>
    <td>Strong drainage systems; significant water movement</td>
  </tr>
  <tr>
    <td>0.8 – 1.0</td>
    <td>Major river systems and high contributing area basins</td>
  </tr>
</table>

<h4>Role in Pipeline Hydrologic Exposure Model</h4>

<p>
The Drainage Intensity Index represents the magnitude of water movement within the hydrologic system and contributes to identifying areas where large volumes of water are concentrated.
</p>

<p>
Higher values contribute to increased hydrologic exposure by identifying:
</p>

<ul>
  <li>Major river corridors</li>
  <li>High-flow drainage basins</li>
  <li>Areas with significant upstream contributing area</li>
  <li>Zones of sustained water movement</li>
</ul>

<p>
This layer contributes to:
</p>

<ul>
  <li>Saturation Potential Index</li>
  <li>River Influence modeling</li>
  <li>Pipeline Hydrologic Exposure Score (1–100)</li>
  <li>Pipeline Hydrologic Exposure Index (1–7)</li>
</ul>

<h4>Scope and Intended Use</h4>

<ul>
  <li>Identification of major drainage systems</li>
  <li>Hydrologic flow intensity analysis</li>
  <li>Pipeline exposure and corrosion screening</li>
  <li>Terrain-driven environmental modeling</li>
  <li>Geospatial risk assessment</li>
</ul>

<p>
This dataset is intended as a relative indicator of drainage magnitude and should be used in conjunction with terrain-based and hydrologic connectivity layers.
</p>

<h4>Related Hydrologic Exposure Datasets</h4>

<h5>Primary Hydrologic Exposure Indices</h5>

<ul>
<li><a href="https://secure.engineeringdirector.com/public/map/Pipeline_Hydrologic_Exposure_Score_1_100_v14_final">Pipeline Hydrologic Exposure Score (1–100)</a></li>
<li><a href="https://secure.engineeringdirector.com/public/map/Pipeline_Hydrologic_Exposure_Index_1_7_v14_INT_websafe">Pipeline Hydrologic Exposure Index (1–7)</a></li>
</ul>

<h5>Supporting Hydrologic Input Layers</h5>

<ul>
  <li><a href="https://secure.engineeringdirector.com/public/map/HAND_Height_Above_Nearest_Drainage_m">HAND – Height Above Nearest Drainage</a></li>
  <li><a href="https://secure.engineeringdirector.com/public/map/HAND_Low_Lying_Index_0_1">HAND Low-Lying Index</a></li>
  <li><a href="https://secure.engineeringdirector.com/public/map/Saturation_Potential_Index_0_1">Saturation Potential Index</a></li>
  <li><a href="https://secure.engineeringdirector.com/public/map/Drainage_Position_Index_0_1">Drainage Position Index</a></li>
  <li><a href="https://secure.engineeringdirector.com/public/map/River_Influence_20km">River Influence</a></li>
  <li><a href="https://secure.engineeringdirector.com/public/map/Distance_To_River_20km_Geodesic">Distance to River</a></li>
  <li><a href="https://secure.engineeringdirector.com/public/map/Drainage_Index_Normalized_0_1">Drainage Intensity Index</a></li>
</ul>

<h4>Limitations</h4>

<ul>
  <li>This index represents relative drainage magnitude, not actual flow rate or discharge.</li>
  <li>It does not incorporate precipitation variability or temporal flow changes.</li>
  <li>It does not represent flood depth or frequency.</li>
  <li>It does not account for engineered drainage systems or infrastructure.</li>
</ul>

<h4>Legal & Licensing</h4>

<p>
© 2026 AtmosphericIQ LLC and Engineering Director, Inc. All rights reserved.
</p>

<p>
This dataset and associated models are proprietary to AtmosphericIQ LLC and distributed by Engineering Director, Inc.
</p>

<h4>Dataset Citation</h4>

<p>
Mazzella, J. (2026).<br>
<strong>Drainage Intensity Index (0–1), Global Raster.</strong><br>
AtmosphericIQ LLC / Engineering Director, Inc.
</p>

<p>
Derived from MERIT Hydro upstream contributing area (UPA) using logarithmic transformation and normalization techniques.
</p>

---

## 2. How to Create an Account, Log In & Query Coordinates

### Step 1: Register with User Email (`POST https://secure.engineeringdirector.com/api/v1/agent/register`) or Sign In at `https://secure.engineeringdirector.com/login`
Zero-signup queries are disabled. Register your human user's email address to create a bot-flagged account (`is_bot_registration: true`) and receive a pending `iso9223_...` API key (or direct the human user to `https://secure.engineeringdirector.com/login?source=iso9223`):
```bash
curl -X POST "https://secure.engineeringdirector.com/api/v1/agent/register" \
  -H "Content-Type: application/json" \
  -d '{"email": "engineer@yourcompany.com", "first_name": "Jane", "last_name": "Doe"}'
```

### Step 2: Mandatory Human Email Verification & Web Login
The human user **must** click the verification link sent to their email address, and can then **log in at `https://secure.engineeringdirector.com/login?source=iso9223`** to use the interactive web platform. Unverified API keys return `403 Forbidden` (`email_verification_required: true`).

### Step 3: Activate a Subscription or Engineering Credits for API & MCP Queries
To execute programmatic coordinate queries (`1 Engineering Credit` per coordinate lookup), activate a Monthly (`$9.99/mo`) or Annual (`$99.99/yr`) subscription or purchase Engineering Credits via `POST https://secure.engineeringdirector.com/api/v1/agent/checkout` or `https://secure.engineeringdirector.com/pay/bot`, then call:
```bash
curl -s "https://secure.engineeringdirector.com/api/bundles/Global_ISO9223_2020_2024_LE_V4/point_query?latitude={LAT}&longitude={LON}&token=iso9223_YOUR_VERIFIED_KEY"
```

### Step 4: Plans & Scaling
- **Monthly Subscription (`$9.99/mo`, includes 10 credits/mo)**: https://secure.engineeringdirector.com/subscribe
- **Annual Subscription (`$99.99/yr`, includes 120 credits/yr)**: https://secure.engineeringdirector.com/subscribe
- **Pay-As-You-Go Engineering Credits (`$0.250` down to `$0.048`/credit)**: https://secure.engineeringdirector.com/credits
- **Full LLM Documentation**: https://secure.engineeringdirector.com/llms.txt | https://secure.engineeringdirector.com/llms-full.txt | https://secure.engineeringdirector.com/openapi.json