Show newer

I like this view taken from Mauna Kea summit. Mauna Loa is in the background with the eruptive volcanic plume. From the plume ash and gazes spread horizontally in the high atmosphere.

@claudiodsf Thanks Claudio. Which mobile app. ? Better not using the "official" mastodon app. I'm using metatext, and it seems to work, though I'm mainly posting from by computer using the https site.
By the way, any will to bring the SCARDEC twitter bot to mastodon? It would perhaps be the first to post MT solutions here.

My former PhD student Gino De Gelder has published a beautiful paper on the famed peninsula, in New Guinea, where Chappell and Shackleton have defined one of the first curves ~40 years ago.

Worth reading if you are interested in marine terraces, , sea level variations, , modelling, tectonic uplift, Quaternary

doi.org/10.1038/s43247-022-005

On bad Friday we have refurbished our two iphones for 150€ (2 batteries, 1 screen), thus avoiding wastage. Remember not to renew electronic devices before 5-7 years of use.

While the famous curve record of atmospheric is currently interrupted because of eruption, listen how Scientists Measure Carbon Dioxide in the Air.

In the linked video, scientist Ralph Keeling, the son of Charles David Keeling who started to develop the CO2 measurement at Mauna Loa observatory, explains how the measurement is done. The keeling curve is named from C.D. Keeling.

youtu.be/dXBzFNEwoj8

Related article (link below) in The Guardian: "Hawaii site that measures global CO2 shuts down after Mauna Loa volcano eruption. Scientists scramble to re-establish the crucial monitoring that has been situated on the volcano since 1958"

theguardian.com/us-news/2022/n

Show thread

Amazing aerial view of the eruption on the northern flank of in . The main erupting fissure shows its high lava fountains in bright yellow. From there anastomosing rivers of fresh lava flow downslope and to the north. Crest and summit of Mauna Kea in the back.

From an USGS video: usgs.gov/media/videos/november

Le demande désormais à ses chercheurs et chercheuses d’appliquer la stratégie de non-cession des droits d’auteur lors du dépôt de leurs articles auprès d’éditeurs.

cnrs.fr/fr/cnrsinfo/il-ny-pas-

Because of the eruption and lava flows, the measurement equipment that maintains the famous Curve lost power on Nov. 28 and is not currently recording data.

keelingcurve.ucsd.edu/2022/11/

Citing their post: "The Keeling Curve is considered the icon of scientific evidence that human activities are altering the planet’s . It has provided incontrovertible evidence that the amount of [atmospheric] gas carbon dioxide has risen far above any levels experienced on Earth for at least three million years […] Researchers at Institution of Oceanography, which established the Keeling Curve record at the site in 1958, are exploring options regarding the relocation of measurement equipment."

@RaphaelGrandin I had a hard time figuring out what was visible on this radar image and from what angle.

In fact, if I'm not mistaken, it only shows part of the summit , its southern part. The very visible crack is not the one currently erupting which is located to the NE outside the radar image. But, may be, it was that fissure that fed the lava lake?

The small volcanic cone in the middle of the fissure was there before current eruption.The broad enlighten (white) zone crossing the image from left to right is the steep western caldera wall. LOS on the map roughly outlines the view angle of the radar image.

Sulfur dioxide (SO2) RGB composition of the 28 Nov 2022 Mauna Loa (Hawaii) eruption from GOESNG -137° geostationary imagery.

Full animation (MP4) here: peertube.virtual-assembly.org/

Sampling rate: 1 image every 30 minutes.

Source of animation: VolcPlume portal (c) AERIS / ICARE / LOA.

Data: NOAA / SATMOS.

#Hawaii #Volcano #eruption #lavaflow #maunaloa #lava #Geology #GOES #satellite #remotesensing #SO2 #dataviz

For those wondering today why locating a #CO2 observational #station on a flank of an active #MaunaLoa volcano:
1. It is remote from major pollution sources and located at a hight of 3.4 km above sea level - a perfect spot for sampling background air in the well mixed free #troposphere.
2. It is easily accessible and has a good local infrastructure.
3. It is also the longest #record of #volcanic CO2 observations.
A win-win situation for #science 😀

Show older
Qoto Mastodon

QOTO: Question Others to Teach Ourselves
An inclusive, Academic Freedom, instance
All cultures welcome.
Hate speech and harassment strictly forbidden.