#geodesy — Public Fediverse posts

Coastal regions face severe, accelerated risks from relative sea-level rise, a phenomenon driven by the dual impact of climate-driven ocean expansion and localized land sinking (subsidence).
#Geodesy #Geodynamics #Hydrology #AtmosphericScience #sflorg
https://www.sflorg.com/2026/05/es05182601.html

Coastal regions face severe, accelerated risks from relative sea-level rise, a phenomenon driven by the dual impact of climate-driven ocean expansion and localized land sinking (subsidence).
#Geodesy #Geodynamics #Hydrology #AtmosphericScience #sflorg
https://www.sflorg.com/2026/05/es05182601.html

Coastal regions face severe, accelerated risks from relative sea-level rise, a phenomenon driven by the dual impact of climate-driven ocean expansion and localized land sinking (subsidence).
#Geodesy #Geodynamics #Hydrology #AtmosphericScience #sflorg
https://www.sflorg.com/2026/05/es05182601.html

Coastal regions face severe, accelerated risks from relative sea-level rise, a phenomenon driven by the dual impact of climate-driven ocean expansion and localized land sinking (subsidence).
#Geodesy #Geodynamics #Hydrology #AtmosphericScience #sflorg
https://www.sflorg.com/2026/05/es05182601.html

Coastal regions face severe, accelerated risks from relative sea-level rise, a phenomenon driven by the dual impact of climate-driven ocean expansion and localized land sinking (subsidence).
#Geodesy #Geodynamics #Hydrology #AtmosphericScience #sflorg
https://www.sflorg.com/2026/05/es05182601.html

#EPOS-GNSS 2026 Webinar Series

Fikri Bamahry @ORB_KSB
"𝗔 𝗦𝘆𝗻𝗲𝗿𝗴𝘆 𝗯𝗲𝘁𝘄𝗲𝗲𝗻 𝗘𝗨𝗥𝗘𝗙 𝗮𝗻𝗱 𝗘𝗣𝗢𝗦: 𝗗𝗮𝘁𝗮 𝗤𝘂𝗮𝗹𝗶𝘁𝘆 𝗠𝗼𝗻𝗶𝘁𝗼𝗿𝗶𝗻𝗴 𝗦𝗲𝗿𝘃𝗶𝗰𝗲 (𝗗𝗤𝗠𝗦)"

📆1th of June
10:00-11:00 CEST

Registration👉 https://tinyurl.com/yjt55wbe

#GNSS🛰️🛰️ #geodesy🌍 #EPN_CB

🌍On 5 and 6 May, the Nationaal Geo Instituut | Institut Géo National 🇧🇪 hosted the first Benelux Geodesists’ Meeting:
two days of consultation to strengthen exchange, ensure consistency of coordinate measurements, and achieve a coherent contribution in international fora

#geodesy #geodata

📣#𝗘𝗤𝗨𝗜𝗣-𝗚 𝗘𝗨-𝘄𝗶𝗱𝗲 𝘄𝗼𝗿𝗸𝘀𝗵𝗼𝗽🇪🇺

📅3-5 June, 2026
📍Potsdam, Germany

𝗥𝗲𝗴𝗶𝘀𝘁𝗿𝗮𝘁𝗶𝗼𝗻 𝗼𝗽𝗲𝗻 𝘂𝗻𝘁𝗶𝗹 𝗪𝗲𝗱𝗻𝗲𝘀𝗱𝗮𝘆, 𝗠𝗮𝘆 𝟮𝟬 𝟭𝟯:𝟬𝟬 𝗖𝗘𝗧
👉https://events.spacepole.be/event/268/

ℹ️https://equip-g.eu/
#quantum⚛️ #gravity #geodesy #gravimetry🌍

RE: https://mastodon.social/@be_GNSS/116534346212654555

🇪🇺🛰️#𝗘𝗨𝗥𝗘𝗙 𝗦𝘆𝗺𝗽𝗼𝘀𝗶𝘂𝗺 𝟮𝟬𝟮𝟲

Registration deadline extended to 𝗠𝗮𝘆 𝟭𝟳, 𝟮𝟬𝟮𝟲 !

#EPN_CB #GNSS #geodesy #referenceframes

🇪🇺🛰️#𝗘𝗨𝗥𝗘𝗙 𝗦𝘆𝗺𝗽𝗼𝘀𝗶𝘂𝗺 𝟮𝟬𝟮𝟲

📍 Paris
📅 23-25 June 2026

𝗥𝗲𝗴𝗶𝘀𝘁𝗿𝗮𝘁𝗶𝗼𝗻 𝗶𝘀 𝘀𝘁𝗶𝗹𝗹 𝗼𝗽𝗲𝗻!

Registration deadline: 𝗠𝗮𝘆 𝟭𝟬, 𝟮𝟬𝟮𝟲

Programme & more info 👉 https://euref2026.sciencesconf.org/resource/page/id/7
#EPN_CB #GNSS #geodesy #referenceframes

Most GNSS survey failures aren’t equipment—they’re poor site selection.

I’m experimenting with using low-cost GNSS receivers (L76K vs u-blox MAX-M10S) to pre-qualify sites before running NOAA OPUS.

~30–90 min logs → PostgreSQL → HDOP, CN0, wander analysis.

Early results show tradeoffs between signal strength and positional stability.

https://salemdata.net/johnpress/?p=628

Anyone exploring similar GNSS site validation?
#GNSS #GPS #Geodesy #ESP32 #PostgreSQL #OpenSource #DataEngineering #Meshtastic

Most GNSS survey failures aren’t equipment—they’re poor site selection.

I’m experimenting with using low-cost GNSS receivers (L76K vs u-blox MAX-M10S) to pre-qualify sites before running NOAA OPUS.

~30–90 min logs → PostgreSQL → HDOP, CN0, wander analysis.

Early results show tradeoffs between signal strength and positional stability.

https://salemdata.net/johnpress/?p=628

Anyone exploring similar GNSS site validation?
#GNSS #GPS #Geodesy #ESP32 #PostgreSQL #OpenSource #DataEngineering #Meshtastic

Laser Ranging Makes GPS Satellites More Accurate

https://web.brid.gy/r/https://hackaday.com/2026/03/29/laser-ranging-makes-gps-satellites-more-accurate/

RE: https://mastodon.social/@be_GNSS/116024699551195000

📣#EUREF Symposium latest news

⚛️ Half-day tutorial session (Tuesday, June 23, morning) focused on quantum sensors
Preliminary program is available at https://euref2026.sciencesconf.org/resource/page/id/7

👉 https://euref2026.sciencesconf.org/
#geodesy #refrenceframes #GNSS #EPN_CB

The oceanic tidal pulse extends significantly deeper into terrestrial waterways than previously recognized, serving as a highly dynamic force that continuously alters the physical and biological landscapes of coastal rivers.
#Hydrology #Oceanography #Geodesy #EnvironmentalScience #Ecology #ClimateChange #sflorg
https://www.sflorg.com/2026/03/es03182601.html

#REFAG2026 was held 2–4 March in Munich🇩🇪

Great presentations and discussions!
• 200 participants
• advances in terrestrial🌍 and celestial #referenceframes, Earth orientation, and multi-technique #geodesy

#EarthScience

@konrad @internetarchive oh wow, this looks amazing! I need to figure out how to get in place something like this for my measuring.earh/minutes project

#OCR #geodesy #digitisation

@konrad @internetarchive oh wow, this looks amazing! I need to figure out how to get in place something like this for my measuring.earh/minutes project

#OCR #geodesy #digitisation

@konrad @internetarchive oh wow, this looks amazing! I need to figure out how to get in place something like this for my measuring.earh/minutes project

#OCR #geodesy #digitisation

@konrad @internetarchive oh wow, this looks amazing! I need to figure out how to get in place something like this for my measuring.earh/minutes project

#OCR #geodesy #digitisation

@konrad @internetarchive oh wow, this looks amazing! I need to figure out how to get in place something like this for my measuring.earh/minutes project

#OCR #geodesy #digitisation

#NASA satellite data tracking Earth's #gravity changes cannot be used to predict oncoming #earthquakes, debunking previous hypotheses about early warning capabilities.
#EarthScience #Seismology #Geodesy #sflorg
https://www.sflorg.com/2026/02/es02182601.html

📣Preliminary Reference Frame Product based on EPN-Repro3 (C2370) now available at #EPN_CB

More info:
👉https://www.epncb.oma.be/_productsservices/coordinates/repro3.php
👉https://www.epncb.oma.be/pub/mail/EUREF/eurefmail.12371

Any feedback to help improve this product is highly appreciated!
#geodesy #referenceframes🌍 #GNSS🛰️🛰️

#EUREF 2025 resolutions and new issue of the EUREF newsletter

Check it out!

👇👇
EUREF newsletter issue 6 https://www.epncb.oma.be/_documentation/newsletters/EUREF_Newsletter_2025_01.pdf
EUREF 2025 Resolutions https://www.euref.eu/sites/default/files/minutes/EUREF_2025_Resolutions_Paper.pdf

#geodesy🌍 @ReferenceFrames #GNSS🛰️🛰️🛰️ #EPN_CB #EPOS

If I had a dollar every time someone said the haversine formula was "good enough", I could probably have a mediocre meal out. Vincenty all the time.

#geodesy #geodata #algorithms #precision

📣#EUREF symposium 2026🌍🛰️

📍Paris
📅23-25 June 2026

Important deadlines:
- abstract submission: April 23
- early registration fees: April 23
- regular registration: May 10

👉https://euref2026.sciencesconf.org.
#geodesy #referenceframes #GNSS #EPN_CB

RE: https://mastodon.social/@ieeespectrum/115928806426237013

🕯️

#mathematics, #geodesy, #computer #science #women #womenInHistory

RE: https://spore.social/@minouette/114036206774374378

Gladys West died January 17 at age 95, leaving behind an extraordinary legacy in mathematics and geodesy.

My portrait and bio are below.

#womenInSTEM #BlackInSTEM #mathematics #satellites #geodesy #EarthScience

Obituary:

https://thezebra.org/2026/01/18/dr-gladys-west-mathematician-whose-work-made-gps-possible-dies-at-95/

you could use an oblique Mercator projection, but that only makes one side of the northern hemisphere larger
https://en.wikipedia.org/wiki/File:Mercator_Polar_Transverse.gif
#mapprojection #geodesy

@x_tof @lokjo

https://en.wikipedia.org/wiki/Gladys_West
"Before GPS became an everyday utility, it was a hard mathematical problem.
In 1950s–70s, Gladys West - mathematician @ U.S. Naval Surface Warfare Center in Dahlgren, VA - worked on one of the most difficult challenges in satellite navigation: accurately modeling the Earth itself.
Modern GPS accuracy depends on:
• Precise satellite ephemerides
• Accurate gravitational field modeling
• Correct Earth reference frames
West’s work directly advanced all three
Her contributions weren’t widely recognized; it wasn’t until 2018 that she was inducted into the USAF Space and Missile Pioneers Hall of Fame - decades after GPS reshaped global navigation, logistics, finance, defense & mobile computing...
Before GPS could tell us where we are, someone had to define what the Earth actually looks like mathematically…”
#Engineering #GPS #Geodesy #STEM #TechHistory #WomenInTech #DataScience #Infrastructure #WomenInGeoSpatial
H/T Evan Kirstel [despite their puerile AI-generated image of Ms. West]

Spherical Earth (Cartography 🗺️)

Spherical Earth or Earth's curvature refers to the approximation of the figure of the Earth as a sphere. The earliest documented mention of the concept dates from around the 5th century BC, when it appears in the writings of Greek philosophers. In the 3rd century BC, Hellenistic astronomy established the roughly spherical shape of Earth as a...

https://en.wikipedia.org/wiki/Spherical_Earth

#SphericalEarth #Earth #Geodesy #Spheres #Cartography #AncientAstronomy

Spherical Earth (Cartography 🗺️)

Spherical Earth or Earth's curvature refers to the approximation of the figure of the Earth as a sphere. The earliest documented mention of the concept dates from around the 5th century BC, when it appears in the writings of Greek philosophers. In the 3rd century BC, Hellenistic astronomy established the roughly spherical shape of Earth as a...

https://en.wikipedia.org/wiki/Spherical_Earth

#SphericalEarth #Earth #Geodesy #Spheres #Cartography #AncientAstronomy

Spherical Earth (Cartography 🗺️)

Spherical Earth or Earth's curvature refers to the approximation of the figure of the Earth as a sphere. The earliest documented mention of the concept dates from around the 5th century BC, when it appears in the writings of Greek philosophers. In the 3rd century BC, Hellenistic astronomy established the roughly spherical shape of Earth as a...

https://en.wikipedia.org/wiki/Spherical_Earth

#SphericalEarth #Earth #Geodesy #Spheres #Cartography #AncientAstronomy

Spherical Earth (Cartography 🗺️)

Spherical Earth or Earth's curvature refers to the approximation of the figure of the Earth as a sphere. The earliest documented mention of the concept dates from around the 5th century BC, when it appears in the writings of Greek philosophers. In the 3rd century BC, Hellenistic astronomy established the roughly spherical shape of Earth as a...

https://en.wikipedia.org/wiki/Spherical_Earth

#SphericalEarth #Earth #Geodesy #Spheres #Cartography #AncientAstronomy

Spherical Earth (Cartography 🗺️)

Spherical Earth or Earth's curvature refers to the approximation of the figure of the Earth as a sphere. The earliest documented mention of the concept dates from around the 5th century BC, when it appears in the writings of Greek philosophers. In the 3rd century BC, Hellenistic astronomy established the roughly spherical shape of Earth as a...

https://en.wikipedia.org/wiki/Spherical_Earth

#SphericalEarth #Earth #Geodesy #Spheres #Cartography #AncientAstronomy

REMINDER

🗓️ Don't forget that at least one for the authors of an accepted abstract has to complete the online registration before 15 December 2025!

More info 👉https://geodesy.science/events/munich2026/
🌍 #geodesy #REFAG2026 #ReferenceFrames #GGOS #IAG

Earth orientation parameters (Earth 🌍)

In geodesy and astrometry, earth orientation parameters describe irregularities in the rotation of planet Earth. EOP provide the rotational transform from the International Terrestrial Reference System to the International Celestial Reference System, or vice versa, as a function of time. Earth's rotational velocity is not constant over time.

https://en.wikipedia.org/wiki/Earth_orientation_parameters

#EarthOrientationParameters #Earth #Geodesy #Astrometry

Earth orientation parameters (Earth 🌍)

In geodesy and astrometry, earth orientation parameters describe irregularities in the rotation of planet Earth. EOP provide the rotational transform from the International Terrestrial Reference System to the International Celestial Reference System, or vice versa, as a function of time. Earth's rotational velocity is not constant over time.

https://en.wikipedia.org/wiki/Earth_orientation_parameters

#EarthOrientationParameters #Earth #Geodesy #Astrometry

Earth orientation parameters (Earth 🌍)

In geodesy and astrometry, earth orientation parameters describe irregularities in the rotation of planet Earth. EOP provide the rotational transform from the International Terrestrial Reference System to the International Celestial Reference System, or vice versa, as a function of time. Earth's rotational velocity is not constant over time.

https://en.wikipedia.org/wiki/Earth_orientation_parameters

#EarthOrientationParameters #Earth #Geodesy #Astrometry

New user feedback survey!

https://gnss-metadata.eu/site/survey2
Help us identify how #M3G can further improve its support to #GNSS🛰️🛰️🛰️ data providers and users!

📅 Please submit your answers by Dec. 15, 2025

👉https://epncb.oma.be/ftp/mail/EUREF/eurefmail.12297
👉https://gnss-metadata.eu/
#geodesy #EPN_CB #EPOS #EUREF

Save the date!

#EUREF🇪🇺 Symposium 2026 will be held in Paris from 23 to 25 June 2026

More info soon!
👉https://lists.igs.org/pipermail/igsmail/2025/008626.html
👉https://www.euref.eu/
#geodesy 🌍 #ReferenceFrames #GNSS🛰️🛰️ #EPN_CB

📣 New selected research highlight 🚀

🔍 Precision optics for global climate change monitoring 📉

The design, testing, and in‑orbit performance analysis of the GRACE Follow-On triple mirror assembly

ℹ️ https://www.aei.mpg.de/1337691/precision-optics-for-global-climate-change-monitoring

📄 https://journals.aps.org/prapplied/abstract/10.1103/7ps8-317c [Open Access]

Image: Fig. 2 from the publication

#GRACEFO #ClimateChange #GlobalWarming #Physics #Geodesy #Optics

Earth orientation parameters (Earth 🌍)

In geodesy and astrometry, earth orientation parameters describe irregularities in the rotation of planet Earth. EOP provide the rotational transform from the International Terrestrial Reference System to the International Celestial Reference System, or vice versa, as a function of time. Earth's rotational velocity is not constant over time.

https://en.wikipedia.org/wiki/Earth_orientation_parameters

#EarthOrientationParameters #Earth #Geodesy #Astrometry

Earth orientation parameters (Earth 🌍)

In geodesy and astrometry, earth orientation parameters describe irregularities in the rotation of planet Earth. EOP provide the rotational transform from the International Terrestrial Reference System to the International Celestial Reference System, or vice versa, as a function of time. Earth's rotational velocity is not constant over time.

https://en.wikipedia.org/wiki/Earth_orientation_parameters

#EarthOrientationParameters #Earth #Geodesy #Astrometry

Earth orientation parameters (Earth 🌍)

In geodesy and astrometry, earth orientation parameters describe irregularities in the rotation of planet Earth. EOP provide the rotational transform from the International Terrestrial Reference System to the International Celestial Reference System, or vice versa, as a function of time. Earth's rotational velocity is not constant over time.

https://en.wikipedia.org/wiki/Earth_orientation_parameters

#EarthOrientationParameters #Earth #Geodesy #Astrometry

What a year it's been!🎉 Feeling immense gratitude and pride as I look back at some of my latest architectural elevation drawings. Each line, every detail, crafted with passion and precision.

Ready to jump into new challenges and projects! #Architecture #Elevations #Portfolio #2Ddrawing #CADdrafting #geodesy #pointcloud #laserscanning #survey

What a year it's been!🎉 Feeling immense gratitude and pride as I look back at some of my latest architectural elevation drawings. Each line, every detail, crafted with passion and precision.

Ready to jump into new challenges and projects! #Architecture #Elevations #Portfolio #2Ddrawing #CADdrafting #geodesy #pointcloud #laserscanning #survey

What a year it's been!🎉 Feeling immense gratitude and pride as I look back at some of my latest architectural elevation drawings. Each line, every detail, crafted with passion and precision.

Ready to jump into new challenges and projects! #Architecture #Elevations #Portfolio #2Ddrawing #CADdrafting #geodesy #pointcloud #laserscanning #survey

https://gogeomatics.ca/canadas-geodesy-void-and-the-hidden-risks-to-economy-defence-and-sovereignty/ #Canada #geodesy

Researchers measured the Earth's axis wobble with a high-precision #RingLaser in Wettzell, Bavaria. The method provides direct and continuous data, previously only possible with complex radio astronomy: http://go.tum.de/178205

#geodesy #geophysics #gyroscope

📷A.Eckert