Bryan R. Vallejo – Medium

Bryan R. Vallejo

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Bryan R. Vallejo
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Towards Data Science

Monitoring Sea Surface Temperature at the global level with GEE

How to create a Streamlit app for ocean monitoring with Python

7 min readMar 8, 2023

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Monitoring Sea Surface Temperature at the global level with GEE

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Bryan R. Vallejo
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Towards Data Science

Dijkstra’s algorithm weighted by travel time in OSM networks

Finding the fastest and shortest path with the OSMNX 1.6

7 min readOct 10, 2023

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Dijkstra’s algorithm weighted by travel time in OSM networks

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Bryan R. Vallejo
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Towards Data Science

Shortest Path (Dijkstra’s) algorithm step-by-step Python guide

An update using OSMNX 1.6 and a long-distance path

6 min readOct 4, 2023

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Shortest Path (Dijkstra’s) algorithm step-by-step Python guide

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Bryan R. Vallejo
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GIS4 Wildlife

“Wildlife Tracker” v0.4: technical and methodological overview

Spatio-temporal annotation with ocean biogeochemistry variables

6 min readOct 12, 2022

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“Wildlife Tracker” v0.4: technical and methodological overview

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Bryan R. Vallejo
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Towards Data Science

Visualization of Bike Sharing System movements in Helsinki with an interactive flow-map

Interactive flow-map in Leaflet based on OD-matrix of Bike movements in Helsinki

7 min readJul 18, 2021

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Visualization of Bike Sharing System movements in Helsinki with an interactive flow-map

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Bryan R. Vallejo

My 30-Day Map Challenge 2023

An overview of selected map topics and algorithms

4 min read4 days ago

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My 30-Day Map Challenge 2023

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Bryan R. Vallejo
in
Towards Data Science

Bike-sharing system movements to the Metallica concert in Tartu, Estonia

GPS tracking visualization with Movingpandas and KeplerGl — Tutorial

9 min readJan 4, 2023

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Bike-sharing system movements to the Metallica concert in Tartu, Estonia

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Bryan R. Vallejo
in
Towards Data Science

Unveiling fishing activity risk to marine megafauna with geospatial technologies

Whale sharks endangered by Chinese fishing vessels — Galapagos Islands

7 min readOct 1, 2022

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Unveiling fishing activity risk to marine megafauna with geospatial technologies

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Bryan R. Vallejo
in
GIS4 Wildlife

Earth Observation and Biologging Data for Marine Conservation

Wildlife Tracker v0.3: a real-time geo technology tool

5 min readAug 1, 2022

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Earth Observation and Biologging Data for Marine Conservation

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Bryan R. Vallejo
in
Towards Data Science

Mobile Network Operators' Coverage in Ecuador

Geovisualization of Cellular Antenna’s development of 2G, 3G, and 4G

5 min readJun 3, 2022

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Mobile Network Operators' Coverage in Ecuador

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Bryan R. Vallejo

Bryan R. Vallejo

Geospatial Scientist | @BryanRVallejo | Supporting GIS community to automate spatial analysis | Get full access to my stories: https://bit.ly/3yjLsSL

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