Computing Discharge Using the Entropy-Based Probability Concept [#USGS]
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https://doi.org/10.3133/tm3A26 <-- shared USGS publication
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"... PLAIN LANGUAGE SUMMARY: This report describes the steps and the theory to compute the speed and flow of water in streams using the probability concept…”
#water #hydrology #monitoring #measurement #calculation #estimation #discharge # computation #EntropyBasedProbability #probabilityConcept #research #testing #meanchannelvelocity #USGS #streamgaging #channelvelocity #metrology #season #USA #streamflow #timeseries #hydrospatial #spatial
@USGS
#Metrology
@ozofriendly
I don't think that "league" has ever been a particularly precise unit. I was in two minds as I wrote it as to whether to add "Circa" - LOL
#units #metrology
Uncertainty propagation using the Monte Carlo method can be demanding in terms of computational resources.
A team at PTB has developed an efficient alternative: the systematic sampling propagation and reconstruction convolution (SSPRC).
Imagine what multi-purpose and useful plants they would be if they could grow up to 45 meters.
They could be all types: ammeters, speedometers, voltmeters, pedometers, odometers, tachometers, anemometers, barometers, thermometers, or even gasometers.
A metrological bounty at harvest-tide.
#metric #bamboo #dadjokes #metrology #meters #EnglishLanguage
Wafer Fab Equipment Market Size, Share|Industry Report 2034
The Wafer Fab Equipment market size is expected to reach $121.40 billion in 2029 at a CAGR of 9.6%, driven by the surge in demand for advanced semiconductors
Read More @
https://www.thebusinessresearchcompany.com/report/wafer-fab-equipment-global-market-report
#WaferFabEquipment #SemiconductorEquipment #ChipManufacturing #AdvancedSemiconductors #FabTools #Photolithography #Metrology #EUV #5GChips #CleanTechManufacturing
Quantum leap in #metrology!
📏Scientists have revealed that memristors can generate ultra-stable discrete resistance states directly related to universal constants.
💽A major leap toward chip-integrated electrical standards.
A colleague of mine is offering a funded PhD position (4 years) in #Metrology of #Skyglow in Switzerland: https://live.solique.ch/metas/de/internet/jobs/PhD-Position-in-Metrology-for-Skyglow-Measurement-and-Monitoring-(4-years-%E2%80%93-100-)--3891747/
And at the same time I'm offering a PhD on #RemoteSensing using nighttime lights: https://jobs.ruhr-uni-bochum.de/jobposting/62065e5be70a916f65edd647cd1b1740b04cd72e0
It's great to see #LightPollution and #Night research being taken seriously by funding agencies!
#AcademicJobs #PhysicsJobs #GeographyJobs #fedihired #getFedihired
BURGER - A Bottom-Up Regionalization Approach for Global Sub-Daily Intensity-Duration-Frequency Data
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https://doi.org/10.1029/2024WR039773 <-- shared paper
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https://zenodo.org/records/15473689 <-- shared dataset
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"KEY POINTS
• BURGER is the first global IDF data set derived from observations of sub-daily rainfall
• Sub-daily rainfall intensities are computed with the Simplified Metastatistical Extreme Value (SMEV) approach for a range of return periods
• BURGER intensities compare well with expected intensities, indicated by an interquartile range of the percentage bias between −5% and 5%..”
#GIS #spatial #data #mapping #global #exteremeweather #precipitation #rainfall #gauge #intensity #model #modeling #spatialanalysis #spatiotemporal #BURGER #geostatistics #spatialstatistics # statistics #GSDR #IDF #remotesensing #earthobservation #machinelearning #AI #weather #climate #prediction #usecase #flood #risk #hazard #SMEV #accuracy #metrology
I'm preparing material for a lab on weather next week and I found this image. People will do anything to avoid using units.
@RnDanger
Exactly! The huge range in definitions of a 'league' by different cultures at different times is presumably why people stopped using it.
In any case, its use in the title of the film was completely nonsensical. :-)
cf. "The Beast From 20,000 Fathoms" - not quite as ludicrous at only 3x Challenger Deep. 😬
#units #metrology #measurement #FactCheckAShowOrFilm
#HashTagGames
Who still uses Imperial Measurements?
And why...
https://www.youtube.com/watch?v=bKMEDZp7ZZs
#measure #units #metrology
📏 Automating Leaf Area Measurement in Citrus: The Development and Validation of a Python-Based Tool
https://www.mdpi.com/2076-3417/15/17/9750
#citrus #metrology #measurement #vision #machinevision #python #plants #software #softwaredevelopment #programming
This afternoon, my kid checked out the book "One Stop Science: Experiments with a Ruler" from the library. Sadly, it appears to be less of #metrology for kids, but more general experiments that can be done with a ruler or other flat stick.
The MetroMag project is born! A European Inftrastructure for Low Magnetic Field Metrology. Visit our website sites.google.com/inrim.it/met... and follow us! #measurementscience #metrology #EUfunded #EUPartnerships
I hope you'll allow me to toot my own horn for a mo. I recently signed a contract to work part-time as the sci-comm specialist for a metrology (measurement science) lab here in AoNZ. I've had standalone projects with this lab for years, and I love working with them. I'm a trained metrologist myself!
This new contract is giving me the chance to think strategically / long-term and to be a bit more ambitious. And it's paying off. Yesterday, we had a big media day.
The lab director appeared on breakfast TV to talk about the importance of measurement. Her interview was great, and was interspersed with lovely B-roll of the lab filmed by the show's local producer.
Then she appeared on a very popular national radio show for a more in-depth conversation about international cooperation and measurement.
I made both of these interviews happen 😊 And the comment I've had from everyone at the lab is "we've never had opportunities like this before".
This lab is part of a larger organization that has basically ignored them in terms of comms support. That's why I kept getting parachuted in for stuff, but they weren't allowed to formally 'hire' me. Changes in the science system mean that the lab is moving out of that organization, so the director decided it was the perfect time to bring me in.
I'm very happy that they did!
I'll continue to work for myself for the majority of the time, but this contract feels like an anchor point that I didn't know I needed. I have so many ideas for things we, as a lab, can do. I'm determined to show the team that I'm a safe pair of hands. I'm feeling really good today.
"World's tiniest measuring device":
#quantumphysics #quantummechanics #damping #harmonicoscillator #metrology #scienceandtechnology #futurism
🤏
https://www.sciencedaily.com/releases/2025/08/250829052206.htm
Unit related question: The dimension of relative enshittification is measured in (choose or comment)
also @weirdunits
Note:
1. It's not the metric system. It hasn't been since 1960 when it was renamed the SI (Système international d'unités). It was not just renaming but a change to an internationally agreed (yes, including the US), coherent system.
2. Everyone uses SI. Even those who insist on measuring, for example, in miles. A mile is *only* defined in terms of SI i.e. 1 mile = 1609.344 m (international, the US survey mile is 1609.347... the lb etc. are similarly defined in terms of the SI).
GSTC | Lab Metrology Measurement Equipment
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Client Info
Server: https://mastodon.social
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