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#spatial

8 posts8 participants0 posts today
Public
millerebonds

Des gens ont imaginé la colonisation de #venus . J'ai cru à une blague au début. Mais non, apparemment, à 50km d'altitude pression et températures sont acceptables.
Faut aimer les montgolfières.
Du coup ça me pose une question: pourquoi la #propagande #technofasciste choisit #mars alors que ça semble plus difficile que Vénus?
Le minerai (sur Vénus avec 93 bars et 400°C ça semble difficile), juste la com qui passe mieux, autre?
#politique #musk #fascisme #spatial #manipulation #ecologie #co2

Public
💧🌏 Greg Cocks

Glacial Lake Mapping Using Remote Sensing Geo-Foundation Model
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doi.org/10.1016/j.jag.2025.104 <-- shared paper
--
HIGHLIGHTS:
• Proposed U-ViT model based on Prithvi GFM for multi-sensor glacial lake mapping.
• Achieved an F1 score of 0.894 on Sentinel-1&2, surpassing CNNs scoring below 0.8.
• Maintains strong performance with 50% less training data, proving efficiency.
• Excels in detecting small lakes (<0.01km²) and handling clouds and complex terrains..."
#GIS #spatial #mapping #glaciallake #GeospatialFoundationModel #satellite #Sentinel #GaoFen #remotesensing #earthobservation #model #modeling #climatechange #glacial #glacier #melt #melting #UViT #deepleanring #AI #framework #performance #metrics #opensource

phot - glacier with glacial lake, Karakoram mountain range
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💧🌏 Greg Cocks

The Concept Of Indigenous GIS
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Reading a paper (alturl.com/8wte5), they used the specific term ‘Indigenous GIS’ – and I found this intriguing!
As I read it, spatial data collection and analysis was done with a focus on how a tribe or social group might ‘see’ the data, including spatiotemporal....
I look forward to finding out more about what others are working on! – so PLEASE feel free to share any examples that you might have…
#GIS #spatial #mapping #indigenous #IndigineousGIS #FirstNation #perspective #cultural #social #naturalresources #archaeology #publicsafety #socialservices #planning #design #spatialanalysis #spatiotemporal #mapping #cartography #usecase #practical #pragamatic #resultsdriven #focused##

photo - indigeneous favela resident, Brasil
historic photo - Navajo woman carrying peaches, 1902
photo - example of a portion of Maori whanau, New Zealand
map - view sheds for deathscapes, Southern Je, Brazil
Public
Joseph Elfelt

Need spatial data?

The list of ArcGIS server addresses that I curate now has over 4,000 addresses for ArcGIS servers at all levels of USA government, from federal to local.

Last fall, Jonathan at geoseer.net/ (spatial data search tool) sent me a massive list of ArcGIS server addresses that have been detected by their scanning methods. I finally had a chance to process that information and added *many* ArcGIS server addresses to the list I curate. Thanks Jonathan!
#GIS #ArcGIS #Data #Spatial #Geospatial #Maps #Mapping

Curated USA ArcGIS server list (pdf):
mappingsupport.com/p/surf_gis/

Public
💧🌏 Greg Cocks

A Methodology For The Multitemporal Analysis Of Land Cover Changes And Urban Expansion Using Synthetic Aperture Radar (SAR) Imagery - A Case Study Of The Aburrá Valley In Colombia
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doi.org/10.3390/rs17030554 <-- shared paper
--
#GIS #spatial #mapping #SyntheticApertureRadar #SAR #remotesensing #multitemporalanalysis #landcover #landcoverchange #clustering #kurtosis #fuzzylogic #kernelbasedmethod #machinelearning #spatialanalysis #spatiotemporal #geostatistics #model #modeling #AburráValley #Columbia #urban #urbanexpansion #population #growth #topography #monitoring #satellite #sentinel #valley #landuse #distribution #infrastructure #building #roads #naturalresources #environmental #conservation #monitoring #multitemporal

photo - looking down into Medellin, Aburrá Valley, Columbia from a surrounding high ground
annotated maps with imagery - Areas of analysis of the results by the SMA1 methodological route and kurtosis. (A). Central Park in Bello (B). Parques del Río Medellín (C). Arkadia Shopping center; (D). Peldar Plant (E). La García water supply reservoir (F). Conasfaltos dam (G). La Ayurá stream basin in Envigado (H). Central Park in Bello (I). Avenida Regional Norte (J). Vía Distribuidora Sur.
schematic / work flow - proposed methodology for analysis of zonal land cover changes
annonated maps - The Aburrá Valley (white line) between the valleys of the Magdalena and Cauca rivers. Data were acquired from ALOS PALSAR Terrain Corrected and data from IGAC.
Public
Susanne Rau

If you are interested in maps and city views and especially in the 'boundaries' between city and countryside, please have a look at this video: youtube.com/watch?v=4SBmTdwOnQ
I call this #boundary a 'spatial differentiation'. Please share your thoughts.
The video could also be a useful teaching tool for BA seminars in in #History , esp. #urban and #spatial history.
... includes a reference to my work on Delagrive: shs.hal.science/halshs-0445346
@histodons @historikerinnen @medievodons @urbanism #space

Antquera city view (Braun & Hogenberg)
Public
Bug

Hello Fediverse!

I'm currently writing a master thesis where I will need to get some data on weather of different (mostly) European cities with some GPS coordinates for the last 5 years.

As this is a student project, I do not have much money to pay expensive API access to historical weather data.

Does anyone have a recommendation?
Thank you and try to be nice to yourself today :)

#python #api #spatial #WeatherData #weather #recommend

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Geert Aarts

Hi #sciencemastadon, just migrated to social.edu.nl. A re-introduction: I'm a researcher working at Wageningen University and Research (#wur), studying the #ecology of #marinemammals (mostly #seals) in the Netherlands or #arctic, analysing #spatial distribution and #habitat selection based on #wildlife #tracking or #drone/ #uav/ #satellite data using #rstats

Also interested in human #behavioural ecology and alternative economic systems like #degrowth/ #postgrowth

Below movie of our research

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Post Tenebras Lire 📚

Un article intéressant sur Mars avec des descriptions claires de challenges techniques et plus profondement de la façon dont "on fait les choses maintenant" et comment une foule de choses doit être fait complètement différemment !
Mars n'est pas juste une peu plus loin !
On ne réalise pas à quel point c'est différent
idlewords.com/2025/02/the_shap
Cc @maisouvaleweb
#Mars #Spatial #Science

idlewords.comThe Shape of a Mars Mission (Idle Words)
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💧🌏 Greg Cocks

Data Request For Potomac River Tragedy - National Centers For Environmental Information (NCEI), NOAA In The News
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ncei.noaa.gov/ <-- shared NCEI home page
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“A CNN Reporter requested data to portray the depth of the Potomac River near the site of the tragic plane and helicopter crash. The Digital Elevation Model Bathymetry (DEM) Team responded with information on how to use NCEI’s high-resolution Continuously Updated Digital Elevation Models (CUDEMs) to generate a map of the Potomac River and provided an example map…”
#GIS #spatial #mapping #remotesensing #bathymetry #topobathy #DEM #elevation #depth #NCEI #opendata #CUDEM #disaster #collision #air #potomacriver #potomac #crash #airdisaster #Washington #helicopter #ArmyHelicopter #blackhawk #NOAA #aviation #midair
@NOAA @NCEI

maps - surrounds and topobathy at the 2025 Potomac River air tragedy site
photo - removing aeroplane debris from the 2025 Potomac River air tragedy site
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