December 2023

Sentinel & Landsat Time Series to NetCDF using python and xarray

Leave a Comment / GIS /

Introduction Satellite imagery, especially from platforms like Sentinel and Landsat, provides valuable data for monitoring Earth’s surface. In this tutorial, we’ll walk through the process of creating a time series of cloud-free imagery using the HLS (Harmonized Landsat Sentinel) dataset. We’ll then export this time series to NetCDF format for further analysis. Setting up Configuration […]

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Exploring 3D Terrain Visualization with Python: A DEM and PyVista Tutorial

Leave a Comment / GIS, Python, Raster, Rioxarray /

Introduction: Exploring Digital Elevation Models (DEMs) in 3D with Python Digital Elevation Models (DEMs) are crucial in geospatial analysis, providing a representation of the Earth’s surface topography. These gridded datasets encode elevation information, making them valuable for various applications, including terrain analysis, hydrology, and environmental modeling. In this tutorial, we will delve into the fascinating

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Line-of-Sight Analysis in Digital Elevation Models using Python

Leave a Comment / GIS, Python, Raster /

This tutorial demonstrates a line-of-sight (LOS) analysis algorithm based on Digital Elevation Models (DEMs) in python. The script processes elevation data to determine the visibility between two points, assessing terrain obstruction along the direct line connecting them. The implementation is explained, and potential applications of LOS analysis are telecommunications, urban planning, and environmental monitoring. To

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Geospatial Analysis using DuckDB

2 Comments / Database, GIS /

This tutorial will guide you through a step-by-step geospatial analysis of bike sharing data using DuckDB. Prerequisites: To setup DuckDB along with spatial extension, please follow this tutorial Setting up DuckDB for GeoSpatial Analysis. Following parquet dataset is used for this TutorialParquet Dataset 1. Load extensions and parquet data: The provided code is loading spatial

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