• Spatio-Temporal Analysis of Industrial and Artisinal Offshore Tin Mining Vessel

  Object-based image classification of mining vessels using Sentinel-1 timeseries.

  9 min read   ·   April 04, 2025

    ·   remote_sensing,   monitoring,   mining,   security,   data_science,   machine_learning,   radar,   GIS

• Sentinel 1 Change Detection for Forest Monitoring

  Using Sentinel-1 data to detect monthly disturbance of forest canopy

  6 min read   ·   March 30, 2025

    ·   remote_sensing,   monitoring,   data_science,   radar,   environment,   forest

• Sentinel-2 Bare Earth Mosaics

  First trial to build Sentinel-2 bare earth mosaics for Indonesia in Earth Engine

  5 min read   ·   February 19, 2025

    ·   remote_sensing,   soil,   geology,   data_science,   multispectral

• Illegal Mining From Space

  Using satellite imagery to monitor illegal mining

  15 min read   ·   February 09, 2025

    ·   remote_sensing,   monitoring,   mining,   security,   data_science,   machine_learning,   deep_learning,   multispectral,   radar,   GIS,   environment

• Exploratory Data Analysis (EDA) for Hyperspectral Imagery

  My typical approach on EDA for a new hyperspectral projects for geological investigations. Includes method such as PCA, K-Means, N-FINDR, Linear Spectral Unmixing, and Minimum Wavelength Mapping.

  19 min read   ·   December 09, 2024

    ·   spectral_geology,   mineral,   data_science,   geology,   hyperspectral,   remote_sensing

• Endmember Extraction from Hyperspectral Imagery Using N-FINDR

  A brief overview, ilustration and case example of N-FINDR algorithm to extract mineral endmembers in hyperspectral imagery.

  9 min read   ·   November 27, 2024

    ·   spectral_geology,   mineral,   data_science,   geology,   hyperspectral,   core_scanning

• Bayesian Spectral Unmixing

  Bayesian approach on spectral unmixing with an example case using hyperspectral images of sandstone drill core sample.

  11 min read   ·   November 24, 2024

    ·   spectral_geology,   mineral,   data_science,   geology,   hyperspectral,   bayesian,   core_scanning

• Different Distance Metrics Example in Spectral Unmixing

  Comparison between Euclidean distance, Manhattan distance, and angular distance in spectral unmixing of mineral endmembers.

  15 min read   ·   November 15, 2024

    ·   spectral_geology,   mineral,   data_science,   geology,   hyperspectral

• Using Raster Calculator in QGIS GUI and Python Console to Make SR Blocks

  Raster Calculator is a very useful tool to have at our disposal. Let's try it to make SR blocks

  13 min read   ·   August 08, 2021

    ·   GIS,   QGIS,   raster,   estimation,   coal

• Earthquake Playthrough 01

  Practicing python with earthquake data from USGS libcomcat API

  31 min read   ·   August 01, 2021

    ·   GIS,   earthquake,   geology