Tidal PMP® Exclusive

Bakkhali River — Tidal Cycle Pairs

2,000 paired images: same exact location at High Tide vs Low Tide. The only dataset of its kind for hydrological AI and waterline segmentation.

Captured daily tidal cycles at Bakkhali River, Cox's Bazar, Bangladesh · 2023–2025

$790
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One-time payment · Commercial AI license included

Commercial License
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Bakkhali River high tide vs low tide paired images for waterline segmentation AI
Sample — GolamRob.com

Dataset Specifications

Total Images2,000 Paired (4,000 total)
File Size6.8 GB
FormatCOCO JSON + JPG
Resolution24 MP (6000×4000)
AnnotationsPolygon Segmentation
GPS Data3D (±1.5m accuracy)
Temporal Coverage2023 — 2025
Time‑SyncedYes (UTC+6)
LicenseCommercial AI
Delivery24 hours (download link)

Dataset Preview — High Tide vs Low Tide

Bakkhali River at High Tide — water level rise, submerged mudflat
Sample — GolamRob.com
High Tide
Bakkhali River at Low Tide — exposed mudflat, crabs, waterline retreat
Sample — GolamRob.com
Low Tide
Bakkhali River at High Tide — waterline at maximum, fishing boats
Sample — GolamRob.com
High Tide
Bakkhali River at Low Tide — waterline minimum, exposed roots, mudflat
Sample — GolamRob.com
Low Tide

Each paired image shows the same location at High Tide and Low Tide. Full-resolution files delivered upon purchase.

Annotation Visualization

Waterline Segmentation Overlay

Waterline segmentation overlay on Bakkhali River tidal pair showing annotated water boundaries
Sample — GolamRob.com

Each image includes waterline segmentation masks for hydrological AI models.

Load COCO JSON — Python

import json
import cv2
import numpy as np

# Load COCO annotations
with open('tidal_annotations.json') as f:
    coco = json.load(f)

# Get image info
img_info = coco['images'][0]
print(f"Image: {img_info['file_name']}, {img_info['width']}x{img_info['height']}")

# Get waterline annotations
waterline_anns = [ann for ann in coco['annotations']
                  if ann['category_id'] == 1]
print(f"Waterline segments: {len(waterline_anns)}")

Ready-to-use with waterline segmentation and hydrological AI models.

Who Is This Dataset For?

Hydrological Modelers

Tidal dynamics and waterline change detection for river and coastal hydrology.

Waterline Segmentation AI

Train models to detect water boundaries from paired high/low tide images.

Flood Forecasting AI

Tidal cycle data for flood risk assessment and early warning systems.

Need Custom Classes or Locations?

As a PMP®, I run 30‑day Data Sprints in coastal Bangladesh. You define the objects, locations, and time. My team delivers production-ready datasets.

Get Your Free Sample Dataset

50 paired images from Bakkhali River. Test with your model before buying.

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Contributor Partner of

Golam Rob (PMP®) – Authorized contributor across global visual marketplaces.