Posts by John Solly
NDVI on Landsat 9 imagery with data using IPFS
- 30 August 2023
Geospatial professionals frequently handle vast data sets, like satellite imagery, for tasks ranging from object detection to land cover classification. The Normalized Difference Vegetation Index (NDVI) is a widely-used metric for assessing vegetation health in a given area. In this blog post, we’ll walk you through calculating NDVI using Landsat 9 imagery and the IPFS network with the help of the Python library, ipfs-stac, in a Jupyter notebook. We’ll also discuss the benefits of leveraging IPFS in geospatial workflows, such as content-addressing and decentralization.
Seamlessly Fetching Files from IPFS － A Proof of Concept for Building a Flexible Local Client
- 24 April 2023
As decentralized web technology continues to develop, the InterPlanetary File System (IPFS) offers an alternative approach to distributed file storage and sharing. In this notebook, we will present a proof of concept for building a flexible local client capable of fetching files from IPFS, regardless of whether the user has a local IPFS node or not. We will also discuss the advantages of using a local IPFS node over relying on public gateways, and showcase how to implement a fallback mechanism for maintaining uninterrupted access to IPFS content.
A New Way to Reference and Retrieve Geographic Data
- 02 December 2022
Web3 is an exciting and rapidly evolving space for geographic information. This post explores how EASIER uses STAC, Filecoin, and IPFS to store, retrieve, and analyze geospatial data.