botGeodetic 0.8.0: 18개 좌표계 변환과 GIS 계산을 지원하는 루비 젬
Geodetic은 18개 좌표계 간의 정밀한 양방향 변환과 지리적 계산을 지원하는 루비용 GIS 라이브러리다.
💧🌏 Greg Cocks1918 Geographic Center Of The [contiguous] Lower 48 States [CONUS] - Lebanon, Kansas
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https://clui.org/ludb/site/geographic-center-lower-48-united-states <-- shared technical article
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https://www.ngs.noaa.gov/PUBS_LIB/GeoCenter_USA1.pdf <-- shared 1959 NOAA technical article
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https://www.smithsonianmag.com/smart-news/many-centers-united-states-180955253/ <-- shared 2015 technical article
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https://www.atlasobscura.com/articles/journey-to-the-center-of-the-united-states <-- shared technical media article
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In 1918, the US Coast and Geodetic Survey attempted to find the center of what was then the United States’ (lower) 48 states. Because they lacked the computing power to process the complex geometry of an irregular, 3D landmass, they placed a carefully scaled map of the 48 conterminous states onto a uniform piece of cardboard. After cutting it out, they determined the geographic center by finding the exact point at which the map balanced perfectly on a pin.
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#spatial #mapping #USA #Lower48th #center #centre #Lebanon #Kansas #geodetic #geodesy #geography #spatialanalysis #cartography #PinAndCardboard #history #tourism #americana
@NOAA | @USGS | @us Coast and Geodetic Survey
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https://clui.org/ludb/site/geographic-center-lower-48-united-states <-- shared technical article
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https://www.ngs.noaa.gov/PUBS_LIB/GeoCenter_USA1.pdf <-- shared 1959 NOAA technical article
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https://www.smithsonianmag.com/smart-news/many-centers-united-states-180955253/ <-- shared 2015 technical article
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https://www.atlasobscura.com/articles/journey-to-the-center-of-the-united-states <-- shared technical media article
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In 1918, the US Coast and Geodetic Survey attempted to find the center of what was then the United States’ (lower) 48 states. Because they lacked the computing power to process the complex geometry of an irregular, 3D landmass, they placed a carefully scaled map of the 48 conterminous states onto a uniform piece of cardboard. After cutting it out, they determined the geographic center by finding the exact point at which the map balanced perfectly on a pin.
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#spatial #mapping #USA #Lower48th #center #centre #Lebanon #Kansas #geodetic #geodesy #geography #spatialanalysis #cartography #PinAndCardboard #history #tourism #americana
@NOAA | @USGS | @us Coast and Geodetic Survey
Multidecadal Reconstruction Of Terrestrial Water Storage Changes By Combining Pre-GRACE Satellite Observations And Climate Data
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https://doi.org/10.5194/essd-18-1747-2026 <-- shared paper
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https://doi.org/10.5281/zenodo.15827789 <-- reconstructed fields and corresponding uncertainty datasets
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https://doi.org/10.5281/zenodo.16643628 <-- corresponding time series datasets
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#GIS #spatial #mapping #remotesensing #earthobservation #GRACE #GRACEFO #water #hydrology #hydrography #waterresources #waterstorage #planning #monitoring #spatialanalysis #spatiotemporal #climatemodel #climatechange #extremeweather #regression #AI #machinelearning #rainfall #precipitation #remperatures #parameters #gravity #geodetic #satellite #orbitography #geomorphometry #DORIS #global #reconstruction #limitations #usecase
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https://doi.org/10.5194/essd-18-1747-2026 <-- shared paper
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https://doi.org/10.5281/zenodo.15827789 <-- reconstructed fields and corresponding uncertainty datasets
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https://doi.org/10.5281/zenodo.16643628 <-- corresponding time series datasets
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#GIS #spatial #mapping #remotesensing #earthobservation #GRACE #GRACEFO #water #hydrology #hydrography #waterresources #waterstorage #planning #monitoring #spatialanalysis #spatiotemporal #climatemodel #climatechange #extremeweather #regression #AI #machinelearning #rainfall #precipitation #remperatures #parameters #gravity #geodetic #satellite #orbitography #geomorphometry #DORIS #global #reconstruction #limitations #usecase
Satellite Captures The First Detailed Look At A Massive Tsunami
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https://www.earth.com/news/satellite-captures-the-first-detailed-look-at-a-giant-tsunami/ <-- shared technical article
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https://doi.org/10.1785/0320250037 <-- shared paper
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#GIS #spatial #mapping #satellite #remotesensing #earthobservation #geology #tectonics #Kuril #Kamchatka #Russia #Pacific #tsunami #NASA #SWOT #energy #dissipation #risk #hazard #model #modeling #DART #buoy #observation #instrumentation #waveforms #propogation #geodetic #spatialanalysis #spatiotemporal #marine #wave #megathrust #rupture #mechanics #altimetry #forecasting #hydrodynamic
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https://www.earth.com/news/satellite-captures-the-first-detailed-look-at-a-giant-tsunami/ <-- shared technical article
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https://doi.org/10.1785/0320250037 <-- shared paper
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#GIS #spatial #mapping #satellite #remotesensing #earthobservation #geology #tectonics #Kuril #Kamchatka #Russia #Pacific #tsunami #NASA #SWOT #energy #dissipation #risk #hazard #model #modeling #DART #buoy #observation #instrumentation #waveforms #propogation #geodetic #spatialanalysis #spatiotemporal #marine #wave #megathrust #rupture #mechanics #altimetry #forecasting #hydrodynamic
TomKrajci 🇺🇦 🏳️🌈 🏳️⚧️Atmospheric refraction, due to the different temperature/altitude profile in the atmosphere at different times of day...makes distant mountains appear taller or shorter.
The attached photo is a comparison of what I shot yesterday afternoon and this morning. The camera was set up within inches of the same location for both shots, and those mountains are between 50 and 120 miles away...so I'm saying that any parallax effect from camera location is essentially zero.
I have annotated with arrows where it's easy to make a comparison of how the near and far ridge lines overlap differently in the two photos.
This is a follow up to:
https://universeodon.com/@KrajciTom/115673789231444526
Imagine the care that was needed to conduct surveys before the GPS/GNSS era:
https://explorersweb.com/the-five-men-who-measured-mount-everest/
"The Great Theodolite built by Troughton & Simms in London stood nearly 1.5m high, had a horizontal circle one meter in diameter, and could read angles to a single second of arc. Moving it required 30 porters and sometimes elephants."
"The reduction of Nicolson’s observations was a colossal task. Each ray from each station had to be corrected for instrumental error, for temperature and pressure, and for the curvature of the Earth. Above all, they needed to correct for atmospheric refraction, which at those distances could amount to six or seven minutes of arc and change from hour to hour."
#Atmosphere #Refraction #Physics #Math #GIS #Datum #Survey #Geodetic #Map #Optics #Science #Parallax #Cool #NewMexico #Theodolite
Fiona Gregory"The absence of #Canadian #geodetic observatories has direct consequences for its own space program. #RADARSAT, once a symbol of Canadian leadership in space, is today the only major commercial synthetic aperture radar mission not supported by the International Laser Ranging Service." - Anusuya Datta
" #Canada’s failure to invest in modern #geodetic infrastructure has left it dependent on foreign systems...on the key networks of Very Long Baseline Interferometry (VLBI) and Satellite Laser Ranging (SLR) — the backbone of the world’s geodetic infrastructure — Canada looks no different from Africa..." https://gogeomatics.ca/canadas-geodesy-void-and-the-hidden-risks-to-economy-defence-and-sovereignty/
Ivi Choc#FYI #NASA #CERES #Geodetic #oceanHeat
Original article (paywalled, log in to your local university library to read)
Cheng et al. 04 April 2024, Nat Rev Earth Environ 5, 232–234
Ocean heat content in 2023
https://doi.org/10.1038/s43017-024-00539-9
#climate #ClimateScience #climatechange #ClimateEmergency #ClimateCrisis #ClimateBreakdown #ClimateDisruption #globalWarming #globalHeating #ExtremeWeather #EcosystemCollapse #systemcollapse #ecocide #fossilfuels #Co2 #Co2Emissions #methane #GreenhouseGases
#FYI #NASA #CERES #Geodetic #oceanHeat
via #LeonSimons @leonsimons.bsky.social
To cite Ronny Chieng: It goes up! Even if you flip the chart upside down, it still goes UP!
"the near-term forcing increase might be much higher than models suggest"
https://bsky.app/profile/leonsimons.bsky.social/post/3lxyrfucmhk2y
#climate #ClimateScience #climatechange #ClimateEmergency #ClimateDisruption #ExtremeWeather #polycrisis #EcosystemCollapse #systemcollapse #ecocide #fossilfuels #Co2Emissions #methane #GreenhouseGases #KeepitInTheGround
Academic EuropeJob - Alert 🚀
🔍 POSTDOCTORAL RESEARCHER (F_M_X) FOR GENESIS-D PROJECT
Deadline: 2024-11-24
Location: Germany, Oberpfaffenhofen, Bayern
APPLY: https://www.academiceurope.com/job/?id=5744
#AerospaceEngineering #Astronomy #geodesy #Postdoc #ProgrammingLanguages #geodetic
