La gestión y monitorización de fenómenos hidrológicos extremos, como inundaciones repentinas o fallos estructurales en presas, representan un desafío crítico para los especialistas en geomática, hidrología y planificación territorial. En este contexto, la tecnología radar de apertura sintética (SAR) a bordo del satélite Sentinel-1 de la Agencia Espacial Europea (ESA) ofrece una capacidad sin precedentes para capturar información precisa y fiable sobre la dinámica superficial, independientemente de las condiciones atmosféricas y lumínicas.
Tag Archives: geovisualizacion
ELEVATION GAIN 84,448 m
On August 14th, 2014, I unknowingly took the first step of a long ascent. Nearly eleven years later, sharply 1089 runs later, I’ve reached an elevation gain of 84,448 metres — almost ten Everests. This isn’t the story of a single mountain climbed, but of a slow, deliberate series of efforts, some before dawn, raining cats and dogs, snowing, escaping from dogs, freezing like hell, others after long days, all contributing to a quiet accumulation of altitude and, more importantly, confidence.
Summer Heat Inequity in Madrid: A Playground-Based Analysis in Summer 2024
Between June 21 and September 21, 2024, I analyzed the surface temperatures of all 2,123 registered playgrounds in Madrid using Landsat 8/9 imagery (Level-2 Surface Temperature products). This investigation, an extension of my previous reflection on urban heat and environmental justice in Geovisualization.net (May 2025), highlights how thermal exposure is patterned by geography, planning legacies, and demographic vulnerability in the Spanish capital.
Urban delineation methods beyond administrative boundaries
As a geographer working with Geographic Information Systems (GIS), I am particularly interested in exploring urban delineation methods that move beyond the constraints of administrative boundaries. Instead of relying on official municipal limits—which can often be outdated or misaligned with functional realities on the ground—I focus on delineating urban areas based on physical indicators such as built-up surface, population density, and spatial continuity. This approach allows for a more accurate and dynamic understanding of urban space.
Urban Heat Islands, Trees, and Climate Justice in the Anthropocene: A Remote Sensing-Based Reflection
In recent years, the need to understand the urban environment has grown more urgent than ever. Climate change is not an abstract future scenario; it is already here, reshaping our cities day by day. Among the many phenomena that demand our attention, the Urban Heat Island (UHI) effect stands out—not only for its environmental and public health impacts but also for its socio-political implications. Through satellite imagery and remote sensing, we can now visualize and quantify these dynamics with increasing precision. This post reflects on such an analysis I conducted using LANDSAT 8 imagery (Scene ID: LC08_L2SP_201032_20250328_20250401_02_T1, Date Acquired: 2025/03/28), and discusses the findings in the broader context of urban planning, climate justice, and the urgent need to protect urban vegetation.
LOS ANGELES WILDFIRES 2025: Sentinel 2 +Overpass Turbo (OSM)
En Los Ángeles, la combinación de condiciones meteorológicas, como los vientos secos de Santa Ana y las altas temperaturas, crea un entorno propenso a incendios forestales. Estos fuegos, a menudo cercanos a áreas urbanas, representan un gran desafío para la gestión de emergencias. Aquí es donde Sentinel-2 se convierte en una herramienta crucial. Utilizando la combinación de bandas 12, 8, 4, Sentinel-2 permite detectar rápidamente focos de calor y evaluar la extensión de las áreas quemadas, lo que es vital para coordinar respuestas eficaces. Esta capacidad de monitoreo casi en tiempo real es fundamental para mitigar el impacto de los incendios y proteger tanto a las comunidades como a los ecosistemas.
Wildfires in Russia through SENTINEL 2
In recent days, the Sakha region in Russia has experienced significant wildfire activity, More than 100 wildfires spanning more than 300,000 hectares are currently active. driven by a combination of extreme weather conditions and environmental factors. The fires, which have spread across vast areas of forest and tundra, have been exacerbated by unusually high temperatures and prolonged periods of drought. These conditions have led to exceptionally dry vegetation, creating an ideal fuel for the fires.
I FORO NACIONAL: CIENCIAS DE DATOS ESPACIALES COMO HERRAMIENTA EFICAZ EN LA GESTION PUBLICA. Lima (Perú)
Esta pasada semana he tenido el honor de viajar a Lima (Perú) para participar en el el Primer Foro Nacional de Ciencias de Datos Espaciales como herramienta eficaz para la gestión pública estos pasados 18-19 Julio 2023 en el Centro de Convenciones de Lima, Perú. Mi ponencia era sobre el DIGITAL TWIN en la ciudad de CUZCO así como el BRIGHT EARTH CITY TEXTURING, una solución de texturización procedural con semántica 3D de bajo mantenimento de mi empresa Luxcarta, un gran adelanto tecnológico de nuestro departamento de I+D.
Consultoría e ideología: Manual de estupidez
Yo soy un humilde Geógrafo, además soy alguien curioso al que no le importa meterme en mil fregados por las razones más variadas, que ha trabajado y trabaja como tal pero también como diseñador, como fotógrafo o como comercial. He trabajado con obreros, con arquitectos, porteros de fincas, con dibujantes, con consultores de todos losContinue reading “Consultoría e ideología: Manual de estupidez”
Google Earth Engine and Dynamic World
Let me please introduce you this “new” LULC source I have come across with recently. The potential of this 10m “clutter” source is being able to acquire data from a few days ago instead of using outdated “very old” 2020 vintage datasets. I know if these days something 2020 is very old then myself, born in 1972 then i’m older than the riverside, older than peeing in a wall, even older than Methuselah. Yes, that’s the way it is nowadays.
Google Earth Engine is a geospatial processing service where you can perform geospatial processing at scale, powered by Google Cloud Platform. The purpose of Earth Engine is to:
Provide an interactive platform for geospatial algorithm development at scale
Enable high-impact, data-driven science
Make substantive progress on global challenges that involve large geospatial datasets
Geovisualization.net 