# GLiM Lithology Constraint Favorability Index (0-100) (`GLiM_Lithology_Constraint_1km_WGS84_UINT8`) — 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. 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Dataset Metadata - **Raster Name**: GLiM Lithology Constraint Favorability Index (0-100) - **Slug**: `GLiM_Lithology_Constraint_1km_WGS84_UINT8` - **Units**: `dimensionless Index (0-100)` - **Spatial Extent**: UL(89.9835615, -179.9999889) to LR(-89.9991237, 179.9989201) - **Summary**: The GLiM Lithology Constraint raster represents a global lithologic favorability layer derived from the GLiM global lithology database. The raster classifies surface lithology into relative hydrogeologic favorability values based on the likelihood that mapped geologic materials support groundwater storage, groundwater transmission, confined aquifer development, or artesian-style hydrogeologic conditions. Higher values indicate lithologies more favorable for groundwater occurrence and artesian susceptibility, such as unconsolidated sediments, sedimentary rocks, carbonates, and alluvial systems. Lower values indicate lithologies generally less favorable for groundwater storage or confined groundwater development, such as crystalline basement, igneous, volcanic, and metamorphic terrains. - **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, (210.0, 180.0, 140.0))` - `(0.5, (208.5, 178.0, 138.0))` - `(1.0, (207.0, 176.0, 136.0))` - `(1.5, (205.5, 174.0, 134.0))` - `(2.0, (204.0, 172.0, 132.0))` - `(2.5, (202.5, 170.0, 130.0))` - `(3.0, (201.0, 168.0, 128.0))` - `(3.5, (199.5, 166.0, 126.0))` - `(4.0, (198.0, 164.0, 124.0))` - `(4.5, (196.5, 162.0, 122.0))` - `(5.0, (195.0, 160.0, 120.0))` - `(5.0, (195.0, 160.0, 120.0))` # GLiM Lithology Constraint **Global | ~1 km Resolution | Version 1** --- ## Raster Name GLiM Lithology Constraint --- ## File Name `GLiM_Lithology_Constraint_1km_WGS84.tif` --- ## S3 Location `s3://aiq-file-storage/Artesian_Wells/GLiM_Lithology_Constraint_1km_WGS84.tif` --- ## Short Description The GLiM Lithology Constraint raster represents a global lithologic favorability layer derived from the GLiM global lithology database. The raster classifies surface lithology into relative hydrogeologic favorability values based on the likelihood that mapped geologic materials support groundwater storage, groundwater transmission, confined aquifer development, or artesian-style hydrogeologic conditions. Higher values indicate lithologies more favorable for groundwater occurrence and artesian susceptibility, such as unconsolidated sediments, sedimentary rocks, carbonates, and alluvial systems. Lower values indicate lithologies generally less favorable for groundwater storage or confined groundwater development, such as crystalline basement, igneous, volcanic, and metamorphic terrains. --- ## Units of Measure Lithologic Favorability Index (0–100, dimensionless) --- ## Technical Specification This raster was derived from GLiM lithology polygons by assigning hydrogeologic favorability scores to lithology classes and rasterizing the result to a global ~1 km grid. The layer is used as a geologic constraint and fallback support layer within the Artesian Well Likelihood framework. --- ## General Lithology Scoring Logic | Lithology Type | Relative Favorability | |---|---| | Unconsolidated sediments | Very High | | Carbonate sedimentary rocks | Very High | | Siliciclastic sedimentary rocks | High | | Mixed sedimentary rocks | High | | Evaporites | Moderate to High | | Volcanic rocks | Low | | Plutonic rocks | Very Low | | Metamorphic rocks | Very Low | | Ice / non-geologic cover | Very Low or NoData | | Water bodies | NoData / not modeled | --- ## Model Role Within Artesian Framework The GLiM Lithology Constraint helps the model: - reinforce sedimentary and alluvial systems - suppress crystalline shield regions - improve geologic continuity - reduce unrealistic groundwater favorability in igneous and metamorphic terrains - provide geologic fallback support where hydrogeologic datasets are incomplete This layer is especially important for differentiating broad geologic terrain classes at global scale. --- ## Interpretation Guidance | Value Range | Interpretation | |---|---| | 0–20 | Very low lithologic favorability | | 20–40 | Low lithologic favorability | | 40–60 | Moderate lithologic favorability | | 60–80 | High lithologic favorability | | 80–100 | Very high lithologic favorability | --- ## Spatial Characteristics | Property | Value | |---|---| | Coverage | Global | | Resolution | ~1 km | | Coordinate System | GCS_WGS_1984 | | Projection | EPSG:4326 | | Pixel Type | 32-bit Float / classified numeric index | --- ## Data Source Derived from: **GLiM — Global Lithological Map** GLiM provides global polygon-based lithologic classifications used to characterize surface geology and dominant lithologic units. --- ## Processing Workflow Processing included: - GLiM polygon ingestion - lithology code interpretation - hydrogeologic favorability scoring - rasterization to ~1 km global grid - reprojection to WGS84 - GeoTIFF export for web and API deployment --- ## Related Artesian Framework Layers - [Artesian Well Likelihood (1–100)](https://secure.engineeringdirector.com/public/map/Artesian_Well_Likelihood_1km_Industry_Filled_webfile) - [Artesian Well Likelihood Index (1–5)](https://secure.engineeringdirector.com/public/map/Artesian_Well_Likelihood_Class_1km_Industry_Filled_webfile) - [GLHYMPS Hydraulic Conductivity (logK)](https://secure.engineeringdirector.com/public/map/GLHYMPS_Hydrogeology_Constraint_1km_WGS84_UINT8) - [GLHYMPS Porosity](https://secure.engineeringdirector.com/public/map/GLHYMPS_Porosity_1km_WGS84_UINT8) - [GLHYMPS Transmissivity](https://secure.engineeringdirector.com/public/map/GLHYMPS_Transmissivity_1km_WGS84_UINT8_v3) - [GLHYMPS Hydrogeology Constraint](https://secure.engineeringdirector.com/public/map/GLHYMPS_Hydrogeology_Constraint_1km_WGS84_UINT8) --- ## Intended Applications This raster is intended for: - hydrogeologic screening - artesian groundwater likelihood modeling - infrastructure planning - pipeline corridor assessment - regional groundwater analysis - geologic constraint mapping - enterprise GIS and API workflows --- ## Limitations This raster represents generalized lithologic favorability at global scale and should not be interpreted as: - site-specific geologic mapping - aquifer yield prediction - groundwater depth prediction - direct artesian well occurrence - subsurface stratigraphic interpretation Surface lithology may not fully represent deeper confined aquifer systems, buried sedimentary basins, or local hydrostratigraphy. Site-specific geologic and hydrogeologic investigation remains necessary for engineering or groundwater development decisions. --- ## Confidence Statement The GLiM Lithology Constraint provides a globally consistent lithologic screening layer that improves geologic realism in the Artesian Well Likelihood framework. It is best used as a regional-scale geologic favorability indicator and supporting constraint rather than a standalone predictor of artesian groundwater conditions. --- ## Data Access & API Services Available through Engineering Director platforms for: - interactive mapping - API integration - enterprise GIS - raster query workflows - hydrogeologic screening --- ## Legal & Licensing © 2026 AtmosphericIQ LLC and Engineering Director, Inc. All rights reserved. GLiM source data copyright remains with original dataset authors and contributors. Derived raster products and processing workflows are proprietary. --- ## Dataset Citation Mazzella, J. (2026). **GLiM Lithology Constraint, Global 1 km Hydrogeologic Raster Framework.** AtmosphericIQ LLC / Engineering Director, Inc. --- ## 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. 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