# Wetland Area Percentage (area_pct) GLWD v2.0 (`GLWD_v2_0_area_pct`) — 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**: Wetland Area Percentage (area_pct) GLWD v2.0 - **Slug**: `GLWD_v2_0_area_pct` - **Units**: `%` - **Spatial Extent**: UL(84.0, -180.0) to LR(-56.0, 180.0) - **Summary**: The Global Wetland Area Percentage Raster provides spatially continuous estimates of wetland and inland water coverage as a percentage of each grid cell. - **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, 222.0, 179.0))` - `(0.1, (244.5, 221.6, 178.1))` - `(0.2, (244.0, 221.2, 177.2))` - `(0.30000000000000004, (243.5, 220.8, 176.3))` - `(0.4, (243.0, 220.4, 175.4))` - `(0.5, (242.5, 220.0, 174.5))` - `(0.6000000000000001, (242.0, 219.6, 173.6))` - `(0.7000000000000001, (241.5, 219.2, 172.7))` - `(0.8, (241.0, 218.8, 171.8))` - `(0.9, (240.5, 218.4, 170.9))` - `(1.0, (240.0, 218.0, 170.0))` - `(1.0, (240.0, 218.0, 170.0))` ## Global Wetland Area Percentage Raster (GLWD v2.0) **Geographic Coverage:** Global (excluding Antarctica) **Spatial Resolution:** ~ 15 arc-seconds (~500 m) **Coordinate System:** GCS_WGS_1984 **Units:** Percent (%) --- ### 1. Product Description The Global Wetland Area Percentage Raster provides spatially continuous estimates of wetland and inland water coverage as a percentage of each grid cell. The dataset represents the fractional extent of wetlands and surface water bodies aggregated across all wetland classes defined within the GLWD classification system. This raster is used to identify regions characterized by persistent surface water, saturated soils, and wetland hydrology, supporting hydrologic exposure modeling and environmental risk assessment. --- ### 2. Definition of Wetland Area Percentage Wetland Area Percentage is defined as the proportion of each grid cell occupied by wetlands and inland water bodies. Values are expressed as a percentage ranging from 0 to 100. Wetland coverage includes: - Marshes - Swamps - Floodplains - Peatlands - Lakes and inland water bodies - Hydrologically connected wetland systems The dataset represents long-term hydrologic conditions and does not capture seasonal variability. --- ### 3. Spatial Characteristics #### 3.1 Geographic Coverage - Global coverage excluding Antarctica - Derived from HydroSHEDS global framework #### 3.2 Spatial Resolution - Native resolution: ~ 15 arc-seconds (~500 meters) - Suitable for resampling to ~1 km grids #### 3.3 Coordinate System - Geographic Coordinate System: **GCS_WGS_1984** --- ### 4. Units and Range - Units: Percent (%) - Minimum Value: 0 - Maximum Value: 100 Interpretation: - 0 = No wetland presence - 100 = Entire grid cell covered by wetlands --- ### 5. Data Sources and Processing The GLWD v2.0 dataset is derived from a harmonized integration of: - HydroSHEDS hydrographic datasets - Global digital elevation models - Remote sensing products - Regional and national wetland inventories Wetland classes are aggregated from 33 individual categories into a continuous fractional coverage representation. The “area_pct” raster represents total wetland and inland water area per grid cell, normalized as percent coverage. --- ### 6. Intended Use in Modeling This raster is used as a supplemental hydrologic indicator to identify areas of persistent saturation and wetland conditions. In hydrologic exposure modeling, it is applied as: - A continuous wetland fraction signal (0–1 after normalization) - A controlled correction layer to enhance floodplain and deltaic environments The dataset is not used as a primary driver, but as a secondary refinement layer. --- ### 7. Visualization Guidance Higher values indicate increasing dominance of wetland or surface water conditions within a grid cell. When viewed spatially: - Elevated values highlight floodplains, deltas, coastal wetlands, and inland basins - Moderate values indicate mixed hydrologic environments - Low values represent upland or well-drained terrain The raster should be interpreted as a spatial indicator of persistent surface water influence rather than a binary wetland classification. --- ### 8. Limitations - Resolution (~500 m) may smooth fine-scale wetland features - Does not capture seasonal flooding or temporal variability - Coastal and deltaic zones may show mixed signals due to resolution - Regional accuracy varies based on source data quality --- ## Source HydroSHEDS – Global Lakes and Wetlands Database (GLWD v2.0) https://www.hydrosheds.org/products/glwd --- ## Citation Lehner, B., & Döll, P. (2024). *Global Lakes and Wetlands Database (GLWD), Version 2.0*. HydroSHEDS / Global HydroDynamics. Global Wetland Area Percentage Raster (area_pct), percent coverage per grid cell. --- ## Short Citation Global Lakes and Wetlands Database (GLWD v2.0), Wetland Area Percentage Raster (global % coverage per grid cell), HydroSHEDS. --- ## 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