Day 10 | Distributions / Multi – Modal | #30DayChartChallenge. Visualization made with R using #ggplot2, #tidyverse, #cowplot, #stars, #raster, #ggspatial and #sf. Data source: Sentinel-2 MSI (2024)
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Greg Cocks New Map Of Landscape Beneath Antarctica Unveiled
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https://phys.org/news/2025-03-landscape-beneath-antarctica-unveiled.html <-- shared technical article
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https://doi.org/10.1038/s41597-025-04672-y <-- shared paper
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#GIS #spatial #mapping #Bedmap3 #icebed #surface #thickness #gridded #datasets #Antarctica #raster #model #modeling #landscape #elevation #icesheet #survey #remotesensing #earthobservation #climatechange #warming #climate #melt #melting #seafloor #subglacial #geophysical #survey #topography #geology #bathymetry #topobathy #BritishAntarcticSurvey
@BritishAntarcticSurvey
Ever needed to reuse the same raster extent & resolution across multiple QGIS tasks? My latest blog post shows how the Raster Layer Properties function can automatically grab all those details from a reference layer. A good way to make your workflows more consistent and error-proof. https://ecodiv.earth/post/rasterlayerproperties/ #QGIS #GIS #FOSS #Raster #OpenSource
@horst724 ... der zweite Tipp (https://www.lokjo.com/) bietet (für meine Region) die aktuelleren Luft- bzw. Satellitenbilder an.
Ansonsten gibt es für amtliche #Karten (#Vektor und #Raster noch dieses empfehlenswerte #Portal auf #Bundesebene in #Deutschland:
Mehr Infos zum Projekt und zur Kartenauswahl:
https://basemap.de/
Fürs #Routing mit optional aktivierten #Verkehrsdaten taugt auch das Portal vom #ADAC unter https://maps.adac.de/ wirklich gut.
www.lokjo.comLokjo.com - Your worldwide local map
Continued thread
Better raster speed & size randomness, color selection ...
GIF
GIF
GIF
GIF
I'm working a on "Loading Screen Raster Generator" which creates raster lines gif animations from the web
Colors accurate, variable frames (4 to 32), size accurate (403x284 because borders)
Totally useless but fun
GIF
GIF
GIF
Introduction To Remote Sensing And Geographical Information Systems [GIS]
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https://www.nateko.lu.se/sites/nateko.lu.se.sv/files/remote_sensing_and_gis_20111212.pdf <-- shared link to paper/publication
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[I have yet to dig into this myself, but it looks very promising]
#GIS #spatial #mapping #remotesensing #earthobservation #learning #onlinelearning #tutorial #education #learning #elearning #onlineclasses #distancelearning #school #virtuallearning #learn #edtech #digitallearning #students #remotelearning #student #onlinetraining #training #technology #spatialdata #spatialanalysis #spatiotemporal #concepts #satellite #imagery #aerialimagery #raster #vector #introduction #101
![cover - paper/publication - Introduction To Remote Sensing And Geographical Information Systems [GIS]](https://files.techhub.social/media_attachments/files/114/027/968/662/553/435/original/9d9173cdf3e42ac7.jpg "cover - paper/publication - Introduction To Remote Sensing And Geographical Information Systems [GIS]")
Does anyone remember that equation that makes lines in pixel art look straight and not jagged?
Mapping Antarctica's Hidden Ice-Free Lands - A Blueprint For Conservation
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https://phys.org/news/2025-01-antarctica-hidden-ice-free-blueprint.html <-- shared technical article
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https://doi.org/10.1038/s41597-025-04424-y <-- shared paper / spatial dataset
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#GIS #spatial #inventory #mapping #Antarctic #ecosystems #wilderness #biodiversity #environmental #icefree #landcover #climatechange #humanimpacts #habitat #opendata #bioregional #abiotic #spatialmodel #biogeography #raster #model #modeling #spatialdata #futureproofing
OK, so #mapnik is not the best right now for me. What other #OpenStreetMap to #raster tiles are there? Specially if it has a text based style language. I could even try to write a compiler from osm-carto to that.
#dataviz #ClimateAction A facet graph for drought severity (PDSI) in India with #opensource #raster data. And, a neat trick to put facet_grid like strip labels in facet_wrap() and geom_spatraster()
Full Code
https://bit.ly/4aF3mRT
Data: https://www.climatologylab.org/
Tools #rstats #ggplot2 #sf #terra #tidyterra
#dataviz Code exploring uses of free #OpenSource geographic #raster data on Crop Land by @esa@feddit.nl with {terra} in #rstats to compute % cropland in sub-districts.
Data: @esa@social.trom.tf
Full Codehttps://tinyurl.com/geo-crops-data
Tools #ggplot2; {geodata} by
@nowosad et al
Adding 3D Elevation Program's Dynamic Elevation Web Coverage Services To ArcGIS Pro And AGOL [training video]
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https://www.usgs.gov/ngp-user-engagement-office/news/new-training-video-dynamic-elevation-service-arcgis-pro-and-agol <-- shared technical article
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https://youtu.be/sDEMHT2CmZw?si=u90-966VvslM6RXc <-- shared video
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https://www.usgs.gov/3d-elevation-program/about-3dep-products-services <-- about 3DEP products & services
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https://apps.nationalmap.gov/services/ <-- link to USGS National Map Web Services
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#GIS #spatial #mapping #elevation #LiDAR #ifSAR #3dep #ArcGISPro #AGOL #training #video #learning #NationalMap #services #raster #topography #opendata #DynamicElevationWebCoverageService #DigitalElevationModels #DEM #DTM #onlinelearning #tutorial
@USGS
How Much And How Many? – Global Terrestrial Biomass And Species Richness
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https://www.pathfindergeospatial.ca/ <-- map generator, Dave Taylor, Pathfinder Geospatial
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https://doi.org/10.34892/rh7v-hg80 <-- shared dataset - Above And Below Ground Biomass Carbon, UNEP-WCMC (UN Environment Programme World Conservation Monitoring Centre)
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https://doi.org/10.1038/s41597-020-0444-4 <-- shared paper
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https://doi.org/10.1016/j.tree.2011.09.007 <-- shared paper
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[sharing of this map should not be considered as an endorsement of Pathfinder, just a personal and professional appreciation of this – and indeed many other maps - they generate]
“Biomass measured as above- and below-ground terrestrial carbon storage (tonnes of carbon per hectare) for c. 2010…
Species Richness is the number of species ranges estimated to occur in each grid cell…”
#GIS #spatial #mapping #cartography #giomass #species #richness #TerrestrialBiomass #SpeciesRichness #global #opendata #carbon #raster
@PathfinderGeospatial @DaveTaylor
Replied in thread
30 DAY MAP CHALLENGE 2024 | DAY 6 - RASTER
Albay at different resolutions (100m, 500m, 1000m, 5000m)
DATA
> Any Digital Elevation Model (DEM)
PROCESS
1. Resample the DEM into 100, 500, 1000, 5000m meter pixel sizes (e.g. using Warp (Reproject) algorithm)
2. Create polygon boundaries for each resampled DEM using Polygonize (raster to vector) and Dissolve.
3. Style #2 accordingly
...
RT IGNFrance@X.com
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#30DayMapChallenge J6 #Raster - Naturalité potentielle moyenne dans les parcs nationaux et parcs naturels régionaux de France hexagonale et Corse.
En 2021, le projet #CARTNAT publiait ses résultats avec une carte de la #naturalité potentielle à l'échelle de la #France hexagonale.
4-part inventory of methods for comparing spatial patterns in raster data #raster
Thinking in spatial patternsInventory of methods for comparing spatial patterns in raster data – Thinking in spatial patternsHi! I’m Jakub Nowosad, an Associate Professor at the Adam Mickiewicz University and a co-author of the Geocomputation with R book.
After rushing through old code, I did also find an old raster bar editor for web that exports for #assembler dc.b values for #c64 . Not the best one and the usage was just with keys, but was useful for me.
https://github.com/Rabenauge/rastereditor
