GIS Portfolio

UAS · MULTISPECTRAL · TURF MANAGEMENT

Celebration Golf ClubVegetation Index Analysis

This simulated project compares three vegetation indexes for turf inspection, irrigation checks, and field follow-up.

Celebration, FloridaHole 5 · Par 3Illustrative dataset

01 / INTERACTIVE ANALYSIS

Compare three vegetation indexes

Choose NDVI, GNDVI, or OSAVI to see how each index changes the modeled view of Hole 5.

Hole 5 · NDVI rasterFull-hole aerial context
MODEL VIEW

Simulated vegetation-index view based on the supplied aerial reference.

Lower vigorHigher vigor

02 / FIELD PRIORITIES

From map patterns to field checks

The mapped patterns suggest places to inspect; they do not diagnose a turf problem. Each zone would need to be checked in the field before treatment.

Priority 1

Zone B · Green approach

Localized dry-spot pattern

Lower GNDVI and NDVI values form an irregular patch within otherwise consistent turf.

Modeled GNDVI
0.34
Next check
Soil moisture
Priority 2

Zone A · Tee-to-green corridor

Irrigation response

A high-vigor linear signal may indicate uneven irrigation coverage or a leaking component.

Modeled NDVI
0.84
Next check
Sprinkler audit
Priority 3

Zone C · Bunker edge

Sparse-canopy transition

OSAVI helps separate reduced turf cover from the brightness of adjacent sand and exposed soil.

Modeled OSAVI
0.36
Next check
Canopy cover

03 / METHOD

How the workflow would be carried out

The process begins with flight planning and calibration, then moves through image processing, index calculation, quality checks, and field verification.

  1. 01

    Plan

    Define safe flight blocks, consistent altitude and overlap, and radiometric calibration procedures.

  2. 02

    Capture

    Collect RGB, green, red, and near-infrared imagery under stable conditions.

  3. 03

    Process

    Align bands, build the orthomosaic, calculate index rasters, and review positional and spectral quality.

  4. 04

    Validate

    Compare flagged zones with moisture, irrigation, disease, compaction, and turf-condition observations.

NDVI

General greenness and canopy vigor

GNDVI

Chlorophyll and nitrogen sensitivity

OSAVI

Vegetation response with reduced soil influence

TEACHING APPLICATION

A field-based lesson in choosing and validating vegetation indexes

Students could compare NDVI, GNDVI, and OSAVI, explain the bands used in each calculation, identify possible turf-stress patterns, and design a field check before drawing conclusions.

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