Am 7. Mai fand in Barcelona das Symposium „Shaping Soil Health Education for 2030 and Beyond“ statt. Unser MSE-Team präsentierte im Rahmen des #LOESS-Projekts eine Handreichung für Bildner:innen sowie eine Vorlesung für Lehramtsstudierende. 🌱🌍

Link zu LOESS auf Instagram: https://www.instagram.com/loess.project.eu/%20

Foto: Lucas Weinberg

#SoilHealth #SoilEducation #LOESSProject #EducationForSustainability

Home – EMIT

EMIT will make the first detailed maps of dust composition of Earth’s dust source regions and use state-of-the-art climate models to better understand regional and global heating and cooling impacts and future changes in dust source regions.

EMIT

Recently Lab Rat featured my piece “LOESS I” in its entirety! It’s a loaded show at 2hrs 39mins, with dedication to the long form towards the end (which is of course where you’ll find my track):
http://www.mixcloud.com/IslingtonRadio/lab-rat-with-porlie-eidolon-27022025

As always - a special thanks to Porlie Eidolon at Islington Radio!

#labrat #islingtonradio #loess #radio #darkambient #noise #harshnoise #experimental #dark #music #ambient

Towards quantitative reconstruction of past monsoon precipitation based on tetraether membrane lipids in Chinese loess

Abstract. Variations in the oxygen isotope composition (δ18O) of cave speleothems and numerous proxy records from loess–paleosol sequences have revealed past variations in East Asian monsoon (EAM) intensity. However, challenges persist in reconstructing precipitation changes quantitatively. Here, we use the positive relationship between the degree of cyclization (DC) of branched glycerol dialkyl glycerol tetraethers (brGDGTs) in modern surface soils from the Chinese Loess Plateau (CLP) and mean annual precipitation (MAP) to quantify past monsoon precipitation changes on the CLP. We present a new ∼ 130 000-year-long DC-based MAP record for the Yuanbao section on the western edge of the CLP, which closely tracks the orbital- and millennial-scale variations in available records of both speleothem δ18O and the hydrogen isotope composition of plant waxes (δ2Hwax) from the same section. Combing our new data with existing brGDGT records from other CLP sites reveals a spatial gradient in MAP that is most pronounced during glacials, when the western CLP experiences more arid conditions and receives up to ∼ 250 mm less precipitation than in the southeast, whereas MAP is ∼ 850 mm across the CLP during the Holocene optimum. Furthermore, the DC records show that precipitation amount on the CLP varies at both the precession scale and the obliquity scale, as opposed to the primarily precession-scale variations in speleothem δ18O and δ2Hwax at Yuanbao and the 100 kyr cycle in other loess proxies, such as magnetic susceptibility, which rather indicates the relative intensity of the EAM. At the precession scale, the DC record is in phase with δ2Hwax from the same section and the speleothem δ18O record, which supports the hypothesis that monsoon precipitation is driven by Northern Hemisphere summer insolation.

Compositional changes in land #snail assemblages from #china #loess sequences over the past 20,000 years reveal the unprecedented scale of recent #anthropogenic #impacts

#climate #paleoclimate #mollusc #climatechange #landuse

https://www.sciencedirect.com/science/article/pii/S0031018224003778

Compositional changes in land snail assemblages from Chinese loess sequences over the past 20,000 years reveal the unprecedented scale of recent anthropogenic impacts

Land snails are sensitive to environmental changes and are valuable indicators of past changes. In this study, we analyzed 88,000 fossilized land snai…

I added a small contribution to the density plot debate to the analysis of my crossword solving times: https://jdonland.github.io/posts/crossword_times/crossword_times.html

tl;dr: LOESS-based density plots like the ones produced by `geom_violin` have some problems that are ultimately the result of neglecting to specify and fit your own model.

#geom_violin #loess #bayesian #crosswords

Jesse Onland - Crossword Times

A consideration of cruciverbal complexity.

R’s easy seasonality/trend decomposition, stl, is really nice and MinGyu Lee has ported it to javascript!

https://www.npmjs.com/package/stlnode

#timeseries #loess #javascript

stlnode

Node port of Seasonal Decomposition of Time Series by Loess. Latest version: 0.0.1, last published: 4 years ago. Start using stlnode in your project by running `npm i stlnode`. There is 1 other project in the npm registry using stlnode.

npm
Millennial-timescale quantitative estimates of climate dynamics in central Europe from earthworm calcite granules in loess deposits - Communications Earth & Environment

Western-central European summers were about 6–10 °C cooler with roughly 30–70% less precipitation during last glacial climate oscillations compared to modern values, according to quantitative paleoclimate estimates based on earthworm calcite granules.

Nature

Hello everyone!
New here; escaping the hellscape of Twitter.

Here is a short intro. I'm Kaja a #Quaternary Scientist based at University of Liverpool.
I work on:
• developing #chronology using #luminescence dating (#OSL)
• understanding sediment #provenance using #geochemistry
#dust records of environmental change (#loess)

I also bake, climb, hike, row, and absolutely love rocks 🪨🖤

— ¿Qué estás cursando?
— Métodos numéricos.
— Suena terrible.
— Lo-es(s)

#humor #LOESS #LOWESS #RegresiónLocal #estadística #chiste #ChisteMalo #EstáBien #ComputaciónUBA #MétodosNuméricos #TP3