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#remotesensing

8 posts7 participants0 posts today
Public
💧🌏 Greg Cocks

RiverREM - Generating River Relative Elevation Model (REM) Visualisations
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github.com/OpenTopography/Rive <-- shared GitHub repository
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opentopography.github.io/River <-- shared documentation
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opentopography.org/blog/new-pa <-- shared Open Topography blog post about RiverREM
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H/T Heidi Luchsinger / Open Topography
[this post should not be considered as an endorsement of this product aka caveat emptor]
#GIS #spatial #mapping #remotesensing #earthobservation #Python #LiDAR #RiverREM #visualisation #hydrology #water #river #rivervalley #floodplain #terraces #GitHub #opensource #opendata #DEM #REM #model #modeling #RiverRelativeModel #documentation #tutorial #learning #tool #elevation #raster #sinuosity #drainage

Public
Christopher Kyba 🇨🇦🇪🇺

This is an interesting new #OpenAccess paper looking at the intersection of energy, development, neighborhood race and class in #SouthAfrica.

They find that #Solar panel installation is by far more common in wealthy and especially white neighborhoods, and that the drop in #NighttimeLight radiance observed from #VIIRS_DNB is lowest in these neighborhoods.

They suggest that solar adoption may reduce the impact of #LoadShedding (i.e. #RollingBlackouts).

I see a few issues with their methodology, but it's nevertheless so interesting to see all these aspects combined with day and nighttime #RemoteSensing.

dx.doi.org/10.1088/2753-3751/a

A figure from the paper showing the area of solar panels per household on a logarithmic scale, for different income levels and racial makeups. Homes in high income areas have an average of 2.2 square meters of solar panels, while poor and low income homes rarely have solar panels. Similarly, homes in white neighborhoods have an average of 3.5 square meters of solar panels, while homes in Indian neighborhoods have 0.14, Coloured neighborhoods 0.01, and African neighborhoods effectively none. The authors note in the paper that these references to race are a historic legacy of Apartheid, and are used because while Apartheid has ended, it nonetheless established historical patterns of settlement that are only changing slowly.
Public
Adam Steer
In need of a timeline cleanse - so here are a few memories from my first Antarctic expedition - SIPEX2007. It took place in September, pretty much still winter. That was the point, to go and find a lot of ice.

And we did.

It's also a time when we thought we were going to change the game of high resolution topographic analysis of sea ice using lidar, imagery and computer vision - validated by rigorous ground observations. And use what we found to validate ship and satellite observations...

Good days.

#polarResearch #Antarctica #remoteSensing #CalVal
An iceberg corner with the shadow of a helicopter on it. HOw big are Antarctic bergs? Really big
RSV Aurora Australis parked in sea ice at night, all lit up. A stream of light from the ship out to the right is somebody's headlamp
"Dragonscale ice" - the first time it was ever observed/ described. A very thick (metres) layer of very small (10-30cm) ice floes formed in very cold, turbelent conditions deep in the pack ice interior
#calval
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Spatialists

#Drought, Lake #Constance and #Sentinel-2: Switzerland has experienced an exceptionally dry period, with Lake Constance’s water levels dropping to their lowest in decades due to little rainfall and snowmelt from the Alps. Recent Sentinel-2 #earthobservation / #remotesensing data and gauging station records reveal...
spatialists.ch/posts/2025/04-0 #GIS #GISchat #geospatial #SwissGIS

spatialists.ch – geospatial newsDrought, Lake Constance and Sentinel-2 – spatialists.ch – geospatial news
More from Spatialists
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💧🌏 Greg Cocks

Surveying Lake Titicaca [2024]
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hydro-international.com/conten <-- shared technical article
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[A very comprehensive hydrographic and shallow geophysical study and mapping effort of Lake Titicaca…]
“In October 2024, officers from the Category “A” Specialization Programme in Hydrography for Naval Officers of the Peruvian Navy conducted their complex multidisciplinary field project at Lake Titicaca at Puno in Peru, which is the highest navigable lake in the world (3,800 metres above sea level). The purpose of this survey was to address issues in the lacustrine environment due to hydrological processes that have occurred in recent years in this water body.…”
#GIS #spatial #mapping #hydrospatial #hydrology #hydrography #LakeTiticaca #Bolvia #Puno #Peru #PeruvianNavy #lake #remotesensing #survey #lacustrine #vertical #multibeam #echsounder #sonar #geomatics #cartography #QGIS

Public
Space Environmentalism

Proliferating #SpaceDebris threatens environmental monitoring satellites.

"About 70% to 80% of all the [#climate and environment] information that we get are from #satellites. If those satellites in orbit are in danger, our ability to predict climate changes in the future […] is certainly under threat."

dw.com/en/space-junk-damaging-

A spider-like space vehicle extends four arms towards a floating piece of space junk above Earth
Deutsche Welle · Space junk damaging satellites: How do we remove it?By Matthew Ward Agius
#ClimateChange#RemoteSensing#SpaceEnvironment
Public
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
More from Spatialists
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💧🌏 Greg Cocks

Kinematic Evolution Of A Large Paraglacial Landslide In The Barry Arm Fjord Of Alaska
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doi.org/10.1029/2023JF007119 <-- shared paper
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doi.org/10.5066/P9EUCGJQ <-- shared technical article
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sciencebase.gov/catalogMaps/ma <-- shared web mapping service
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#GIS #spatial #mapping #massmovement #landslide #engineeringgeology #remotesensing #sitespecific #LiDAR #iFSAR #paraglacial #kinematics #mapping #monitoring #spatialanalysis #spatiotemporal #fedscience #risk #hazard #glacier #retreat #climatechange #Alaska #BarryArm #fjord #hazardassessment #tsunami #wave #BarryGlacier #change #sensors #fieldwork #surveillance #melting #permafrost #Whittier #geophysics #geology #Alaska #geomorphometry #deglaciating
@USGS

Public
Robin Wilson

New blog post: Learning resources for GIS in Python with cloud-native geospatial, PostGIS and more: blog.rtwilson.com/learning-res

I recently sent a list of learning resources to a MSc student I'm working with, and (with her permission) am sharing in case others find it useful

blog.rtwilson.comLearning resources for GIS in Python with cloud-native geospatial, PostGIS and more « Robin's Blog
#python#gis#remotesensing
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