💧🌏 Greg CocksJan 29, 2025
Oceanic Evasion Fuels Arctic Summertime Rebound Of Atmospheric Mercury And Drives Transport To Arctic Terrestrial Ecosystems
--
https://doi.org/10.1038/s41467-025-56300-3 <-- shared paper
--
#GIS #spatial #mapping #mercury #Hg #contamination #summerrebound #arctic #summertime #atmospheric #transport #contaminate #terrestrial #ecosystems #Hg0 #model #modeling #framework #spatialanalysis #spatiotemporal #concentrations #seaice #atmosphere #river #riverine #GDAS #GEOS #GEOSChem #MERRA2 #GTMM #global #NDVI #remotesensing #cycling #marine #ocean #water #hydrology #seawater #icemelt #anthropogenic #coast #coastal #tundra #permafrost #climatechange #evasion #vegetation #uptake #mitigation
legraLeGraJul 29, 2024

And now my friends down at #nasa #gsfc #merra2 plus #giss #gistemp weigh in::

July 22 2024 was the hottest day in recorded history… likely the hottest day since the Eemian.

#climate #climateChange #temperature

#hot

https://www.nasa.gov/earth/nasa-data-shows-july-22-was-earths-hottest-day-on-record/

See my thread from last year for my opinion on why these days were the hottest in 120,000 years

https://fediscience.org/@atthenius/110668739230530095

NASA Data Shows July 22 Was Earth’s Hottest Day on Record - NASA

July 22, 2024, was the hottest day on record, according to a NASA analysis of global daily temperature data. July 21 and 23 of this year also exceeded the

NASA
Show threadanlomedadDec 14, 2022

Really a 61day #Dunkelflaute 12-1996-01-1997, acc to paper in #2?
In winter, Germany's electricity demand relies much on wind onshore/offshore.
The analysis in #1 is based on a tool based on #Merra2. Download Germany data here https://www.renewables.ninja/#/country
But the datasets provided don't include meteorological wind, only pressure and PV-relevant data.
And Merra2 only has wind data at 10m anyway!

But #Era5 is a high resolution reanalysis and includes windspeeds at 100m https://cds.climate.copernicus.eu/cdsapp#!/software/app-c3s-daily-era5-statistics?tab=app

4/x

Renewables.ninja

Show threadanlomedadDec 13, 2022

2/2
So above paper finds ~100hr #Dunkelflaute-events.

This analysis for Germany in the same timespan as #1, finds a whopping 61day #Dunkelflaute from Dec1996 to Jan1997 https://iopscience.iop.org/article/10.1088/1748-9326/ac4dc8
They used ENTSO-E generation/capacity data but not paired with meteorological stuff.

I wonder why the authors of the paper in #1 didn't also find the 61day low #renewables electricity generation in the 90s. They used data from https://www.renewables.ninja/#/country
and weather from #Merra2.

Ah well. Mut zur Lücke.😁