Playing with Sentinel 2 images I realized that the amount of snow this year has been very low compared to last winter. Here are a couple of images from January 2022 and 2023 of the Canfranc – Paticosa – Jaca area. One of the most interesting things about this EO browser is that in addition to a standard 2D visualisation, we can visualise in 3D. Here is an video example. Another interesting thing is to be able to quantify the snowfall. There is a snow classifier based on NSDI (Normalized Difference Snow Index, The Normalized Difference Snow Index (NDSI) snow cover is an index that is related to the presence of snow in a pixel and is a more accurate description of snow detection as compared to Fractional Snow Cover (FSC).
Category Archives: gis analysis
Uso de ChatGPT en diferentes idiomas para generar post sobre un tema random: “autómatas celulares”
¿Pensáis que la Inteligencia Artificial de ChatGPT nos permite autoescribir de manera completamente automática sobre un tema random como este (autómatas celulares/cellular automata) una introducción para por ejemplo hacer un post en redes sociales?. ¿E ir más allá?. Quizá no estemos tan lejos de que los robots empiecen a pensar por nosotros. Paso uno, usoContinue reading “Uso de ChatGPT en diferentes idiomas para generar post sobre un tema random: “autómatas celulares””
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”
Faible taux d’humidité au Pays Basque. Sérieux ?
Quand vous venez passer le week-end dans un village du Pays Basque et que vous voyez cette image verte ci-dessous, vous vous dites, ho-ho, ici ils n’ont pas eu les problèmes de chaleur et de manque de pluie que nous avons subis dans le centre et le sud de la péninsule. Mais tout à coup, ils vous disent que oui, ils ont aussi souffert et qu’il est impossible qu’ils aient atteint les niveaux d’humidité des autres années…
Inland Water levels… Globally. Copernicus did it again!
The Water Observatory is an Earth-observation-based solution that provides reliable and timely information about surface water levels of waterbodies across the globe. All observations are provided and can be explored interactively via the Water Observatory Dashboard or via RESTful API. The Water Observatory provides a valuable service to local authorities, governmental agencies, natural parks and reserves, agricultural ministries and agencies, stakeholders in food and energy production, and citizens alike.
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
Tracking fires LIVE: Boiro (A Coruña, Spain)
We can track this up as we speak. We can measure burn areas on a regular basis, creating videos, capture images, creating indexes, histograms, etc. Everything for better understanding what is going on and maybe, why not, avoiding it in te future. If you would like more information, dont hesitate to contact us.
Measuring moisture: Normalized Difference Moisture Index (NDMI) Sentinel-2 2022
I am here in front of my desktop and I wonder how to take advantage of Sentinel Hub for tracking up moisture in a random plot anywhere in the world. Has it been irrigated at the right time for the type of crop? How has rainfall been affected over the analysis time? How has the use of certain fertilisers affected it? Has it positively affected production?. Let’s take a closer look.
Ship Monitoring from space: SUEZ
Below you can see the example timelapse of Suez Canal ship traffic, made with a Sentinel-1 custom composite visualization. You can observe the moving ships as time passes.
Sentinel-1 is a pair of European radar imaging (SAR) satellites launched in 2014 and 2016. Its 6 days revisit cycle and ability to observe through clouds makes it perfect for sea and land monitoring, emergency response due to environmental disasters, and economic applications. This dataset represents the global Sentinel-1 GRD archive, from beginning to the present, converted to cloud-optimized GeoTIFF format.
Recuperación natural de un bosque de Pino Piñonero. Incendio en Pedro Bernado (Ávila)
En este micro vídeo he querido mostrar el proceso de recuperación natural de un bosque de Pino Piñonero (Pinus Pinea) a lo largo de tres años en Pedro Bernardo (Ávila, España). Fecha del incendio Junio 2019. Estimación previa a cuantificación: 40%. Imagenes Sentinel 2 – L2A. Usé una combinación 12-11-4. SWIR-2 (12), SWIR 1 (11), Red (4) entre las fechas de Junio 2019 y Junio 2022 a razón de una imagen al mes, seleccionando solo si ausencia total de nubes y cobertura total sobre la zona de análisis.
Geovisualization.net 