Raphael Grandin

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193 Posts
Associate Professor of Geophysics (Solid Earth) at IPGP/UPC. Posting about #InSAR #volcanoes #earthquakes #EO #satellites.
Websitehttps://www.ipgp.fr/~grandin/Raphael_Grandin_personal_web_page/Home.html
Background imageInSAR image of an earthquake in France
PronounsHe/him
Just a random volcano, seen by a random satellite, in a random false-color composition.
This is the situation four days later.

This #Sentinel3 #satellite đŸ›°ïž image shows the impact of the 15 Jan 2022 Hunga #Tonga #volcano #eruption 🌋 on ocean 🌊 color 🌈 . The image was acquired ~ 24 hours after eruption. Anomaly is here shown in terms of "suspended matter", derived from measurements of the OCLI instrument . It is caused by ash fallouts from the volcanic eruption. In the following days, the anomaly gets dispersed by winds and oceanic currents.

Data: (C) #ESA-#Copernicus / #EUMETSAT

On 21. April the #WMO (World Meteorological Organization) released their "State of the Global Climate 2022" annual report. There is no good news at all for the #climate; the #ClimateCrisis is in full-swing. If you've not read the report, you should. You can download it from a link here -
https://public.wmo.int/en/media/press-release/wmo-annual-report-highlights-continuous-advance-of-climate-change

Here are the "highlights" (lowlights) from the "Key Messages" section of the WMO report. There are many excellent graphics in the report; I've only highlighted one of them here.

#GHG - Concentrations of the three main greenhouse gases – carbon dioxide #CO2, #methane and #NitrousOxide – reached record highs in 2021, the latest year for which consolidated global values are available (1984–2021).The annual increase in methane concentration from 2020 to 2021 was the highest on record. Real-time data from specific locations show that levels of the three #GreenhouseGases continued to increase in 2022.

#Ocean heating - Around 90% of the energy trapped in the climate system by greenhouse gases goes into the ocean. Ocean heat content, which measures this gain in energy, reached a new observed record high in 2022.

#MarineHeatwave - Despite continuing La Niña conditions, 58% of the ocean surface experienced at least one #marine #heatwave during 2022. In contrast, only 25% of the ocean surface experienced a marine cold spell.

#SeaLevelRise - Global mean sea level continued to rise in 2022, reaching a new record high for the satellite altimeter record (1993–2022). The rate of global mean sea level #MSL rise has doubled between the first decade of the satellite record (1993–2002, 2.27 mm per year) and the last (2013–2022, 4.62 mm per year).

#Glacier melting - In the hydrological year 2021/2022, a set of reference glaciers with long-term observations experienced an average mass balance of −1.18 metres water equivalent (m w.e.). This loss is much larger than the average over the last decade. Six of the ten most negative mass balance years on record (1950– 2022) occurred since 2015. The cumulative mass balance since 1970 amounts to more than −26 m w.e.

#Drought in #WetSeason, #food insecurity - In East #Africa, rainfall has been below average in five consecutive wet seasons, the longest such sequence in 40 years. As of August 2022, an estimated 37 million people faced acute food insecurity across the region, under the effects of the drought and other shocks.

#Flooding - Record-breaking rain in July and August led to extensive flooding in #Pakistan.There were at least 1 700 deaths, and 33 million people were affected, while almost 8 million people were displaced. Total damage and economic losses were assessed at US$ 30 billion.

#Heatwave - Record-breaking heatwaves affected #China and #Europe during the summer. In some areas, extreme heat was coupled with exceptionally dry conditions. Excess deaths associated with the heat in Europe exceeded 15 000 in total across #Spain, #Germany, the United Kingdom #UK#, France and #Portugal

#Klima #Klimakrise #UN

WMO annual report highlights continuous advance of climate change

The WMO State of the Global Climate report 2022 focuses on key climate indicators – greenhouse gases, temperatures, sea level rise, ocean heat and acidification, sea ice and glaciers. It also highlights the impacts of climate change and extreme weather.

World Meteorological Organization
The radar image shows the volcanic edifice of #Shiveluch (#Kamtchatka). The volcano is seen from an oblique view. The top of the #volcano is missing, as it collapsed in an eruption in 1964. In place of the missing volcano summit, one can observe a large horseshoe-shaped depression. The bottom of the depression is filled with a new lava lobe, made of semi-solid rock, that appears to have formed since the 10 April 2023 eruption.

This spectacular image shows the #Shiveluch volcano (Russia) after a recent eruption on Apr 10. #SAR provides a unique opportunity to image the status of the volcano. Experts have looked at our data & noticed a possible new lava dome forming. #volcano
@IPGP_officiel
@GFZ_Potsdam

Source : https://twitter.com/capellaspace/status/1649126815095750656?s=20

Capella Space on Twitter

“This spectacular image shows the #Shiveluch volcano (Russia) after a recent eruption on Apr 10. #SAR provides a unique opportunity to image the status of the volcano. Experts have looked at our data & noticed a possible new lava dome forming. #volcano @IPGP_officiel @GFZ_Potsdam”

Twitter
Reste avec nous
« Je reviens de Sainte-Soline
 Il y a ton corps qui se convulse dans les bras des medics.
Il y a cette femme mĂ©decin qui appelle le SAMU au tĂ©lĂ©phone, SAMU qui ne vient pas 
 ». Publication d’un texte bouleversant, fort, nĂ©cessaire. Pour « le respect du vivant ». Pour « que nos larmes ne remplissent pas leurs bassines ».
https://blogs.mediapart.fr/pascal-maillard/blog/290323/reste-avec-nous
Reste avec nous

« Je reviens de Sainte-Soline
 Il y a ton corps qui se convulse dans les bras des medics. Il y a cette femme mĂ©decin qui appelle le SAMU au tĂ©lĂ©phone, SAMU qui ne vient pas 
 ». Publication d’un texte bouleversant, fort, nĂ©cessaire. Pour « le respect du vivant ». Pour « que nos larmes ne remplissent pas leurs bassines ».

Mediapart

Nous considérons qu'il ne s'agit là nullement d'actes délictueux qui saliraient notre fils, mais que ces actes sont au contraire tout à son honneur.

Les parents de Serge
Le 29 mars 2023

- Oui, Serge a eu des problÚmes judiciaires - comme la plupart des gens qui se battent contre l'ordre établi.

- Oui, Serge a participé à de nombreux rassemblements anticapitalistes - comme des millions de jeunes dans le monde qui pensent qu'une bonne révolution ne serait pas de trop, et comme les millions de travailleurs en lutte actuellement contre la réforme des retraites en France.

Nous avons portĂ© plainte pour tentative de meurtre, entrave volontaire Ă  l'arrivĂ©e des secours ; et pour violation du secret professionnel dans le cadre d'une enquĂȘte de police, et dĂ©tournement d'informations contenues dans un fichier de leur finalitĂ©.

Suite aux différents articles parus dans la presse, dont beaucoup sont inexacts ou mensongers, nous tenons à faire savoir que :

- Oui, Serge est fiché "S" - comme des milliers de militants dans la France d'aujourd'hui.