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#topography

1 post1 participant0 posts today
Public
Adam Steer

Happy with the printer I found last week, so print 2/100 of the "overland track in blue" is ready! A2 giclee print on 310 gsm platine rag.

It's probably really only going to be a 50 print run - odd numbers are a slightly different shade of blues ;)

Available here: bluethumb.com.au/adam-steer/Ar

...or get in touch - although bluethumb offer better shipping and insurance networks than I can.

#topography#art#qgis
Public
Javier Jimenez Shaw

Do you want to contribute to an open source project?
Do you like/enjoy/love #GIS , #maps , #cartography , #surveying , #topography or #geodesy ?
Do you know C/C++? (this is optional)

You are very welcome to the communities of #GDAL or PROJ developers.
Join us!

gdal.org
proj.org

Wait a second: are you already coding in C++ or Python using these libraries? What are you waiting for!?

Hint: mailing lists are a good starting point ;)

gdal.orgGDAL — GDAL documentation
#cpp#gischat
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
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#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
Bibliolater 📚 📜 🖋

🔴 📖 **The Legibility of Serif and Sans Serif Typefaces**

_“It describes the origins of serif and sans serif styles in ancient inscriptions, their adoption in modern printing techniques, and their legibility in different situations and in different populations of readers.”_

Richardson, J.T.E. (2022) The legibility of serif and sans serif typefaces, Springer briefs in education. doi.org/10.1007/978-3-030-9098.

#OpenAccess #OA #DOI #Reading #Text #Serif #SansSerif #Typeface #Topography #Design #Nonfiction #EBook #PDF #Bookstodon @bookstodon

SpringerLinkThe Legibility of Serif and Sans Serif TypefacesThis book provides a detailed and up-to-date account of the relevant literature on the legibility of different kinds of typefaces.
Public
Benjamin Carr, Ph.D. 👨🏻‍💻🧬

#Satellites map #Earth's #ocean floors in unprecedented detail
#NASA’s Surface Water and Ocean Topography (#SWOT) satellite features a diverse range of instruments that can detect subtle changes in ocean circulation by measuring the #topography of the ocean’s surface. By measuring these changes, SWOT can measure the ocean’s internal waves, similar to how various medical imaging devices can see inside the body.
space.com/the-universe/earth/j

Space · Satellites map Earth's ocean floors in unprecedented detailBy Skyler Ware
Public *
💧🌏 Greg Cocks

Edge Of Mars’ Great Dichotomy Eroded Back By Hundreds Of Kilometres
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arstechnica.com/science/2025/0 <-- shared technical article
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dx.doi.org/10.1038/s41561-024- <-- shared paper
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#GIS #spatial #mapping #planet #Mars #remotesensing #imagery #landsurface #geology #topography #astrogeology #elevation #morphology #martian #geography #marsdichotomy #plateau #lowlands #model #3dmodel #basin #highlands #shoreline #ocean #crust #structuralgeology #chemostratigraphy #morphostratigraphy #geomorphometry #geomorphology #water #hydrology #CaSSIS #HiRISE #stratigraphy #strata #MOLA #laser #LiDAR #MawrthVallis #crater #mound #profile #crosssection #geochemistry #mineralogy #CRISM #CTX #HRSC #DTM #erosion #weathering #spatialanalysis #spatiotemporal

images - Morphological similarities between the stratigraphy in the mounds and the Mawrth Vallis plateau region
3D model, map, images and charts - Chemostratigraphy and morphostratigraphy of a well-exposed mound
3D map and cross section - Three-dimensional view of study area with stacked elevation profiles
image/map - the topography of Mars by the Mars Orbital Laser Altimeter (MOLA)
Public
💧🌏 Greg Cocks

Adding 3D Elevation Program's Dynamic Elevation Web Coverage Services To ArcGIS Pro And AGOL [training video]
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usgs.gov/ngp-user-engagement-o <-- shared technical article
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youtu.be/sDEMHT2CmZw?si=u90-96 <-- shared video
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usgs.gov/3d-elevation-program/ <-- about 3DEP products & services
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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

screen shot - ArcGIS Pro - 3D view of landsurface elevation data
screen shot - USGS training video - Adding 3D Elevation Program's Dynamic Elevation Web Coverage Services To ArcGIS Pro And AGOL
map - ifSAR data of ground surface created by poster, near Kaktovik Alaska on the Beaufort Sea / Arctic
map/image - LiDAR image, Laguna Creek
Public
💧🌏 Greg Cocks

NOAA Digital Coast – Data Access Viewer [USA]
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coast.noaa.gov/digitalcoast/to <-- shared link to viewer
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[lots of new data added in the last 6 months]
“This online tool allows a user to search for and download lidar, imagery, and land cover data by user-defined geography. Once found, the data can be downloaded with an easy-to-use checkout interface. Users can select from multiple file formats, projections, and datums.
Features:
• View image services for applicable data
• View technical specifications and metadata for each data set
• Access data in several projections and datums…”
#GIS #spatial #mapping #spatialdata #opendata #LiDAR #imagery #NOAA #digitalcoast #USA #DataAccessViewer #landcover #topobathy #topography #bathymetry #charts #coast #coastal #CoastalChangeAnalysisProgram #CCAP #NLCD
@NOAA

screen shot - NOAA Digital Coast – Data Access Viewer - topobathy
screen shot - NOAA Digital Coast – Data Access Viewer - C-CAP Regional Land Cover example
screen shot - NOAA Digital Coast – Data Access Viewer - interface - elevation data
screen shot - NOAA Digital Coast – Data Access Viewer - interface - elevation with charts view
Public
💧🌏 Greg Cocks

ESA And NASA Deliver First Joint Picture Of Greenland Ice Sheet Melting
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esa.int/Applications/Observing <-- shared technical article
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doi.org/10.1029/2024GL110822 <-- shared paper
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[Visualising the latest results from ESA's CryoSat radar altimeter, consistent with measurements from NASA's ICESat-2 laser altimeter]
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#GIS #spatial #mapping #remotesensing #earthobservation #cryosphere #Greenland #icesheet #melting #CryoSat #satellite #ICESat2 #spatiotemporal #spatialanalysis #Jakobshavn #glacier #ice #snow #radar #laser #iceloss #climatechange #altimeter #elevation #topography #height
@ESA @nasa

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