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Mastodon: AboutGet the appKeyboard shortcutsView source codev4.4.0-nightly.2025-04-01

#remotesensing

15 posts11 participants0 posts today
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
Public
💧🌏 Greg Cocks

Turbulence Characteristics Of Ice-Free Radiatively Driven Convection In A Deep, Unstratified Lake
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doi.org/10.1029/2024GL112607 <-- shared paper
--
[anecdotally, I have experienced this scuba diving in a drysuit in WA and BC, especially in freshwater, so it is wonderful to see some background]
#GIS #spatial #mapping #remotesensing #ROV #water #hydrology #underwater #GreatLakes #LakeSuperior #density #temperature #freshwater #lake #stratified #stratification #colder #warmer #mixing #convective #survey #energy

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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

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Nexus Research Group

🛰️ That’s a wrap! The 2nd EnMAP User Workshop brought 3 packed days of talks, posters & hands-on tutorials —exploring how EnMAP data supports research on vegetation, water, soil & atmosphere.

Highlights included hands-on tutorials, lively garden chats, and an exclusive look behind the scenes at @DLR & #ohb

Thanks to all who joined, shared, and inspired! 🌍🚀 #EnMAP #RemoteSensing #EarthObservation #Geography #Hyperspectral #DLR #LMU #CHIME #EnvironmentalScience #research #science #news

The participants during the coffee break on workshop day 2.
Stefanie Steinhauser explains the EnMAP box to workshop participants.
Prof. Tobias Hank, kicking off the 2nd EnMAP User Workshop.
Public
💧🌏 Greg Cocks

Earth's Storage Of Water In Soil, Lakes And Rivers Is Dwindling - And It's Especially Bad For Farming
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phys.org/news/2025-03-earth-st <-- shared technical article
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doi.org/10.1126/science.adq652 <-- shared paper
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#water #hydrology #waterresources #global #management #watersecurity #soil #lake #river #snow #groundwater #agriculture #sealevelerise #SLR #climatechange #farming #overuse #waste #moisture #soilmoisture #ecology #ecosystems #storage #model #modeling #spatialanalysis #spatiotemporal #rainfall #drought #consistency #wateruse #crop #plant #vegetation #irrigation #foodsecurity #evapotranspiration #ET #surfacewater #flux #GIS #spatial #mapping #remotesensing #earthobservation #waterstorage #depletion

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