abovepy 2.1.0

KyFromAbove LiDAR, DEM, and orthoimagery data access for Python

abovepy

KyFromAbove LiDAR, DEM, orthoimagery, and oblique imagery data access for Python.

Kentucky's KyFromAbove program provides statewide 2ft DEMs, 3-inch orthoimagery, 3-inch oblique imagery, and COPC LiDAR point clouds — all publicly available on S3 with a STAC API for discovery. abovepy gives you Pythonic access to all of it, plus server-side terrain analysis via TiTiler. No credentials required.

Install

pip install abovepy

Optional extras:

pip install abovepy[lidar]    # COPC/LAZ point cloud support
pip install abovepy[viz]      # leafmap + matplotlib visualization
pip install abovepy[all]      # Everything

Quick Start

Search by county name

import abovepy

# Find DEM tiles covering Franklin County
tiles = abovepy.search(county="Franklin", product="dem_phase3")
print(tiles)

Search by bounding box

tiles = abovepy.search(
    bbox=(-84.9, 38.15, -84.8, 38.25),
    product="dem_phase3"
)

Download tiles

paths = abovepy.download(tiles, output_dir="./data")

Mosaic into a single raster

vrt = abovepy.mosaic(paths, output="frankfort.vrt")

Search by point with feet-based buffer

# 500-foot radius around a point (uses EPSG:3089 for accurate measurement)
tiles = abovepy.search(
    point=(-84.87, 38.20),
    buffer_feet=500,
    product="dem_phase3"
)

Corridor search

from shapely.geometry import LineString

# Search along a road centerline with 200ft buffer on each side
road = LineString([(-84.90, 38.20), (-84.85, 38.19), (-84.82, 38.21)])
tiles = abovepy.search(geometry=road, buffer_feet=200, product="ortho_phase3")

Stream without downloading

data, profile = abovepy.read(
    tiles.iloc[0].asset_url,
    bbox=(-84.85, 38.18, -84.82, 38.21)
)

Data quality validation

result = abovepy.search(county="Pike", product="dem_phase3")

# Check for data quality issues
warnings = result.validate()
for w in warnings:
    print(f"Warning: {w}")
# Warning: 3 tile(s) (12%) have no acquisition date metadata.

Provenance metadata

# Generate source documentation for deliverables
prov = result.provenance()
print(prov["source_program"])       # KyFromAbove
print(prov["acquisition_period"])   # 2022-2025
print(prov["native_crs"])           # EPSG:3089
print(prov["tile_count"])           # 42
print(prov["estimated_size_mb"])    # 210.0

Explore available products

print(abovepy.info())
#   product        display_name                format  resolution  phase  crs
#   dem_phase1     DEM Phase 1 (5ft)           COG     5ft         1      EPSG:3089
#   dem_phase2     DEM Phase 2 (2ft)           COG     2ft         2      EPSG:3089
#   dem_phase3     DEM Phase 3 (2ft)           COG     2ft         3      EPSG:3089
#   ortho_phase1   Orthoimagery Phase 1 ...    COG     6in         1      EPSG:3089
#   ...plus oblique products

Terrain analysis (server-side)

Generate hillshade, slope, and contour tiles directly from the TiTiler-pgSTAC server — no downloads needed:

from abovepy.titiler import hillshade_tile_url, slope_tile_url, contour_tile_url

# Hillshade TileJSON URL — use in MapLibre/Leaflet/leafmap
url = hillshade_tile_url(bbox=(-84.9, 38.15, -84.8, 38.25))

# Slope in degrees
url = slope_tile_url(bbox=(-84.9, 38.15, -84.8, 38.25))

# Contour lines every 50ft
url = contour_tile_url(bbox=(-84.9, 38.15, -84.8, 38.25), increment=50)

Interactive notebook maps

# Display a hillshade map in Jupyter (requires pip install abovepy[viz])
m = abovepy.show("dem_phase3", county="Franklin", algorithm="hillshade")
m  # renders interactive leafmap

Persistent virtual mosaics

Register a search with TiTiler-pgSTAC to get a shareable tile URL:

search_id = abovepy.register_search("dem_phase3", bbox=(-84.9, 38.15, -84.8, 38.25))
from abovepy.searches import search_tile_url
url = search_tile_url(search_id)  # stable TileJSON URL

Oblique imagery

Access Phase 3 oblique imagery from 4 camera directions (backward, forward, left, right):

from abovepy.obliques import list_oblique_seasons, search_obliques

seasons = list_oblique_seasons()
frames = search_obliques(direction="bwd", season=seasons[-1], max_items=10)
# Each frame has: frame_id, tif_url, json_url, season, direction

Examples

DEM Phase Comparison

Compare 5ft Phase 1 vs 2ft Phase 3 resolution from the same tile in Frankfort:

Hillshade from Streamed DEM

Compute a hillshade directly from a cloud-hosted DEM tile — no download required:

Streamed DEM Window

Read just the pixels you need with a bounding box:

Ortho RGB Extract

Pull 3-inch true-color imagery of the Kentucky State Capitol:

Kentucky River REM

Relative Elevation Model showing height above the Kentucky River in Frankfort:

Mine Volume Estimate

Estimate cut volume for an active mine permit in Perry County using DEM differencing:

Search Results Map

Visualize tile coverage for Franklin County:

DEM Change Detection

Compare Phase 1 vs Phase 3 DEM over a Pike County mining area to detect terrain change:

Flood Inundation Simulation

Simulate rising water levels on a DEM — watch the Kentucky River floodplain fill:

Slope & Aspect Analysis

Compute slope and aspect from DEM for terrain analysis:

Elevation Contours over Hillshade

Overlay 10ft/50ft contour lines on a shaded relief map:

Elevation Profile

Extract a cross-valley transect showing the Kentucky River valley profile:

Land Use Change

Side-by-side ortho imagery across phases showing development over time:

Multi-County Tile Coverage

Map DEM tile coverage across five Central Kentucky counties:

Multi-Product Site Assessment

Combine ortho, DEM, hillshade, and slope for a single area:

Product Gallery

One tile from each product type - DEM Phase 1/2/3 and Ortho Phase 3:

pgSTAC Terrain Previews

Server-side DEM elevation, hillshade, and ortho previews generated from TiTiler-pgSTAC:

Oblique Site Inspection

Four-direction oblique frame coverage summarized for rapid site inspection:

See examples/scripts/ for the full source code behind each image and demo.

Available Products

Product	Resolution	Format	Collection ID
dem_phase1	5ft	COG	dem-phase1
dem_phase2	2ft	COG	dem-phase2
dem_phase3	2ft	COG	dem-phase3
ortho_phase1	6 inch	COG	orthos-phase1
ortho_phase2	6 inch	COG	orthos-phase2
ortho_phase3	3 inch	COG	orthos-phase3
laz_phase1	Varies	LAZ	laz-phase1
laz_phase2	Varies	COPC	laz-phase2
laz_phase3	Varies	COPC	laz-phase3
oblique_phase3_bwd	3 inch	COG	obliques-phase3*
oblique_phase3_fwd	3 inch	COG	obliques-phase3*
oblique_phase3_left	3 inch	COG	obliques-phase3*
oblique_phase3_right	3 inch	COG	obliques-phase3*

* Oblique STAC collection pending — use search_obliques() for S3-based discovery.

All data is natively in EPSG:3089 (Kentucky Single Zone, US feet). abovepy accepts bounding boxes in EPSG:4326 by default.

ArcGIS Pro Toolbox

An ArcGIS Pro Python Toolbox is included in arcgis/AbovePro.pyt with tools for:

• Find KyFromAbove Tiles — draw extent, pick product, see available tiles
• Download Tiles — download with progress tracking
• Download and Load — download + add to map in one step
• DEM Hillshade — automated DEM → hillshade workflow
• County Download — download by county name dropdown

See ArcGIS Pro Toolbox Guide for installation and usage.

Web Visualization

abovepy generates TiTiler-compatible URLs for web map integration:

from abovepy.titiler import cog_tile_url, collection_tile_url, hillshade_tile_url

# Individual COG via standalone TiTiler
url = cog_tile_url(tiles.iloc[0].asset_url)

# Entire collection via TiTiler-pgSTAC (no individual URLs needed)
url = collection_tile_url("dem_phase3", bbox=(-84.9, 38.15, -84.8, 38.25))

# Server-side hillshade
url = hillshade_tile_url(bbox=(-84.9, 38.15, -84.8, 38.25))

# Use any of these with MapLibre GL JS, Leaflet, or leafmap

KyFromAbove TiTiler endpoints are used by default. A docker-compose.yml for local TiTiler is in examples/.

Kentucky Engineering Geometry

abovepy includes geometry utilities that work natively in Kentucky State Plane (EPSG:3089, Northing/Easting in US Survey Feet) — the coordinate system surveyors and engineers actually use:

from abovepy import buffer_feet, corridor_buffer
from shapely.geometry import Point, LineString

# Buffer a survey point by 500 feet using State Plane coordinates
site = Point(1_600_000, 312_000)  # Easting, Northing in feet
area = buffer_feet(site, 500.0, input_crs="EPSG:3089")

# Create a corridor polygon from a road centerline (200ft each side)
road = LineString([(1_599_000, 312_000), (1_601_000, 312_500)])
corridor = corridor_buffer(road, 400.0, input_crs="EPSG:3089")

# Also works with WGS84 — reprojects to EPSG:3089 internally
site_wgs84 = Point(-84.87, 38.20)
area = buffer_feet(site_wgs84, 500.0)  # input_crs defaults to EPSG:4326

Command-Line Interface

abovepy includes a full CLI for terminal workflows:

# Search with feet-based buffer
abovepy search --point=-84.87,38.20 --buffer-feet 500 -p dem_phase3

# Get provenance metadata as JSON
abovepy search --county Franklin -p dem_phase3 --format provenance

# Estimate download size
abovepy estimate --county Franklin -p ortho_phase3

# Download tiles (concurrent, resumable)
abovepy download --county Franklin -p dem_phase3 -o ./data --workers 8

# Generate a hillshade tile URL
abovepy tile-url --bbox=-84.9,38.15,-84.8,38.25 --algorithm hillshade

Advanced: Direct STAC Access

For power users who need the full pystac-client:

client = abovepy.KyFromAboveClient()
stac_client = client.get_stac_client()

# Full pystac-client API
results = stac_client.search(
    collections=["dem-phase3"],
    bbox=(-84.9, 38.15, -84.8, 38.25),
    datetime="2022-01-01/..",
).item_collection()

Related Resources

• kyfromabove-on-aws-examples — Foundational examples for accessing KyFromAbove data on AWS using tile index GeoPackages and boto3. Great reference for understanding the raw S3 data structure that abovepy wraps.
• kyfromabove-gisconference2025-workshop — 2025 KY GIS Conference workshop covering STAC API access from Python, ArcGIS Pro, and QGIS. Includes building height estimation from COPC LiDAR, DEM change detection, and MosaicJSON workflows.
• KyFromAbove — Official program site from the Kentucky Division of Geographic Information.
• STAC Browser — Browse the KyFromAbove STAC catalog interactively.

Data Source

• STAC API: https://spved5ihrl.execute-api.us-west-2.amazonaws.com/
• S3 Bucket: s3://kyfromabove/ (public, us-west-2)
• AWS Open Data Registry: KyFromAbove

License

GPL-3.0 — see LICENSE.

---