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#geospatial

30 posts26 participants1 post today
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N-gated Hacker News

Did you know? 🌍 "Vector tiles" are the newest buzzword in the #geospatial world, and now we have an article pitting six open-source servers in a battle to see who can sling them fastest! 🚀 Spoiler: it's like watching a turtle race on a network cable 🤷‍♂️.
spatialists.ch/posts/2025/04-0 #VectorTiles #OpenSource #Technology #PerformanceBenchmark #TurtleRace #HackerNews #ngated

spatialists.ch – geospatial newsServing vector tiles, fast – spatialists.ch – geospatial news
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Spatialists

Serving vector tiles, fast: Want to serve #VectorTiles to your users? Fabian Rechsteiner’s benchmark pits six open-source servers (#BBOX, #ldproxy, #Martin, #pg_tileserv, #Tegola, #TiPg) against each other, revealing stark speed differences.
spatialists.ch/posts/2025/04-0 #GIS #GISchat #geospatial #SwissGIS

spatialists.ch – geospatial newsServing vector tiles, fast – spatialists.ch – geospatial news
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Spatialists

If you create, or are curious about, #VectorTiles, you may have come across the command line utility #Tippecanoe (TIP-ə-kə-NOO). It’s probably no secret that its usage is not entirely trivial, but there is a helpful tool for this now. spatialists.ch/posts/2025/04-0 #GIS #GISchat #geospatial #SwissGIS

spatialists.ch – geospatial newsTool tip: Tippecanoe Command Generator – spatialists.ch – geospatial news
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GRASS GIS

🌿 Join us at the #GRASSDevSummit2025 at NC State! 🚀

Connect with fellow developers, share your skills, and help shape the future of #GRASS as a top geoprocessing engine. Dive into strategic planning and discover ways to expand our community's contributions. It's your chance to learn and contribute to long-term innovation in geoprocessing! 🌍

Can't make it? You can still support us by sponsoring the event for just $20! 🌱 ❤️

opencollective.com/osgeo/proje

GRASS Developer Summit 2025
#GrowGRASS#ncsu#geospatial
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GeoNe.ws

#Geospatial analysis of cholera outbreak in Lusaka, Zambia, between 2023 and 2024

tropmedhealth.biomedcentral.co

BioMed CentralGeospatial analysis of cholera outbreak in Lusaka, Zambia, between 2023 and 2024 - Tropical Medicine and HealthBackground Cholera outbreaks have plagued Zambia for decades, with Lusaka district, the capital, being particularly vulnerable. Although the lack of sanitary toilet facilities and inadequate drainage systems were shown to be associated with the high cholera incidence in the early 2000s, it is unknown whether these environmental risk factors persisted in the outbreak that occurred in 2023–2024, which turned out to be the largest outbreak in the country’s history. We investigated the geospatial patterns of cholera cases and associated environmental factors during the October 2023 to March 2024 cholera outbreak. Methods We conducted a geospatial analysis of the suspected cholera cases in Lusaka district, comprising seven constituencies and 94 townships. Patient information and geocoordinates were collected from suspected cases using electronic surveillance tools. The space–time scan statistics was performed to detect spatial and temporal clusters of cases. Spearman's rank correlation coefficient, were employed to examine the relationship between cholera incidence and various environmental factors, including access to Water, Sanitation, and Hygiene (WASH) facilities and equipment. Results Over the study period, 4,591 suspected cholera cases with geocoordinate data were identified, with incidence rates varying across the constituencies. Median cholera incidence (IQR) was 0.55 (0.27–1.44) in Lusaka, with higher incidence rates observed in unplanned residential areas. After the first case identification in Kanyama, cases and clusters were observed in different parts of Lusaka. Among 94 townships in Lusaka, cholera-suspected cases were identified in 86 of them. Among environmental factors analyzed for associations with the high cholera incidence, the proportion of individuals without soap and detergent at home (ρ = 0.457, p < 0.001) and those without water for hand washing at home (ρ = 0.421, p < 0.001) were significantly associated with increased cholera incidence. Conclusion The findings underscore the significance of environmental factors in cholera transmission, particularly in unplanned residential areas with inadequate access to WASH facilities which persist in the area. Improving WASH infrastructure and implementing tailored public health strategies, particularly for high-risk areas (e.g., unplanned residential areas), are crucial for mitigating cholera outbreaks in Lusaka District.
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IL Photonics

In the field of #RemoteSensing, precision and reliability are critical for capturing and analyzing data that drives decision-making across a wide range of industries. Optical filters are tailored to meet the unique requirements of many applications, such as #geospatial #mapping, #hyperspectral imaging, #environmental monitoring, #agricultural health, #weather and #cloud monitoring, #LiDAR and 3D #earth mapping. Learn more: ilphotonics.com/optical-filter

IL Photonics · Optical Filters for Remote Sensing Applications | IL PhotonicsChroma Technology  designs and manufactures optical filters tailored to meet the unique requirements of remote sensing applications.
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Spatialists

Open SAR data: Synthetic Aperture Radar (#SAR) is an interesting #remotesensing technology that captures high-resolution data of the Earth’s surface, regardless of weather or lighting conditions. This curated collection of open SAR data sources provides an...
spatialists.ch/posts/2025/04-0 #GIS #GISchat #geospatial #SwissGIS

spatialists.ch – geospatial newsOpen SAR data – spatialists.ch – geospatial news
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